Create hook-asyncssh.py

Fixes #7577

.github/workflows/benchmarks.yaml

@@ -12,7 +12,7 @@ jobs:
     steps:
       - uses: actions/setup-python@v4
         with:
-            python-version: "3.10"
+            python-version: "3.11"
       - uses: iterative/dvc-bench@main
         with:
             pytest_options: "-k 'test_init or test_help'"

.github/workflows/codeql.yml

@@ -0,0 +1,39 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+  schedule:
+    - cron: '32 19 * * 2'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: ['python']
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v2
+      with:
+        languages: ${{ matrix.language }}
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v2

.github/workflows/packages.yaml

@@ -104,7 +104,7 @@ jobs:
         password: ${{ secrets.PYPI_TOKEN }}
 
     - name: Publish to Test PyPI
-      if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
+      if: ${{ github.event_name == 'release' || (github.event_name == 'push' && github.ref == 'refs/heads/main') }}
       uses: pypa/gh-action-pypi-publish@release/v1
       with:
         password: ${{ secrets.TEST_PYPI_TOKEN }}

.github/workflows/tests.yaml

@@ -46,13 +46,15 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-20.04, windows-latest]
-        pyv: ["3.8", "3.9", "3.10"]
+        pyv: ["3.8", "3.9", "3.10", "3.11"]
         pytest-filter:
         - "import or plot or live or experiment"
         - "not (import or plot or live or experiment)"
         include:
-        - {os: ubuntu-latest, pyv: "3.11"}
         - {os: macos-latest, pyv: "3.8"}
+        - {os: macos-latest, pyv: "3.9"}
+        - {os: macos-latest, pyv: "3.10"}
+        - {os: macos-latest, pyv: "3.11"}
 
     steps:
     - uses: actions/checkout@v3

README.rst

@@ -13,7 +13,7 @@
 
 |CI| |Python Version| |Coverage| |VS Code| |DOI|
 
-|PyPI| |Packages| |Brew| |Conda| |Choco| |Snap|
+|PyPI| |PyPI Downloads| |Packages| |Brew| |Conda| |Choco| |Snap|
 
 |
 
@@ -276,6 +276,10 @@ Barrak, A., Eghan, E.E. and Adams, B. `On the Co-evolution of ML Pipelines and S
    :target: https://pypi.org/project/dvc
    :alt: PyPI
 
+.. |PyPI Downloads| image:: https://img.shields.io/pypi/dm/dvc.svg?color=blue&label=Downloads&logo=pypi&logoColor=gold
+   :target: https://pypi.org/project/dvc
+   :alt: PyPI Downloads
+
 .. |Packages| image:: https://img.shields.io/github/v/release/iterative/dvc?label=deb|pkg|rpm|exe&logo=GitHub
    :target: https://github.com/iterative/dvc/releases/latest
    :alt: deb|pkg|rpm|exe
@@ -292,6 +296,6 @@ Barrak, A., Eghan, E.E. and Adams, B. `On the Co-evolution of ML Pipelines and S
    :target: https://github.com/iterative/dvc/graphs/contributors
    :alt: Contributors
 
-.. |VS Code| image:: https://vsmarketplacebadge.apphb.com/version/Iterative.dvc.svg
+.. |VS Code| image:: https://img.shields.io/visual-studio-marketplace/v/Iterative.dvc?color=blue&label=VSCode&logo=visualstudiocode&logoColor=blue
    :target: https://marketplace.visualstudio.com/items?itemName=Iterative.dvc
    :alt: VS Code Extension

dvc/cli/parser.py

@@ -2,8 +2,8 @@
 import argparse
 import logging
 import os
-import sys
 
+from dvc import __version__
 from dvc.commands import (
     add,
     cache,
@@ -128,17 +128,6 @@ class DvcParser(argparse.ArgumentParser):
         return args
 
 
-class VersionAction(argparse.Action):  # pragma: no cover
-    # pylint: disable=too-few-public-methods
-    """Shows DVC version and exits."""
-
-    def __call__(self, parser, namespace, values, option_string=None):
-        from dvc import __version__
-
-        print(__version__)
-        sys.exit(0)
-
-
 def get_parent_parser():
     """Create instances of a parser containing common arguments shared among
     all the commands.
@@ -186,13 +175,11 @@ def get_main_parser():
         help="Show this help message and exit.",
     )
 
-    # NOTE: On some python versions action='version' prints to stderr
-    # instead of stdout https://bugs.python.org/issue18920
     parser.add_argument(
         "-V",
         "--version",
-        action=VersionAction,
-        nargs=0,
+        action="version",
+        version=__version__,
         help="Show program's version.",
     )
 

dvc/commands/experiments/ls.py

@@ -18,15 +18,13 @@ class CmdExperimentsList(CmdBase):
         )
         tags = self.repo.scm.describe(exps)
         remained = {baseline for baseline, tag in tags.items() if tag is None}
-        base = "refs/heads/"
+        base = "refs/heads"
         ref_heads = self.repo.scm.describe(remained, base=base)
 
         for baseline in exps:
-            name = (
-                tags[baseline]
-                or ref_heads[baseline][len(base) :]
-                or baseline[:7]
-            )
+            name = baseline[:7]
+            if tags[baseline] or ref_heads[baseline]:
+                name = tags[baseline] or ref_heads[baseline][len(base) + 1 :]
             if not name_only:
                 print(f"{name}:")
             for exp_name in exps[baseline]:

dvc/commands/stage.py

@@ -238,26 +238,6 @@ def _add_common_args(parser):
         help="Declare output plot file (do not put into DVC cache).",
         metavar="<path>",
     )
-    parser.add_argument(
-        "--live", help="Declare output as dvclive.", metavar="<path>"
-    )
-    parser.add_argument(
-        "--live-no-cache",
-        help="Declare output as dvclive (do not put into DVC cache).",
-        metavar="<path>",
-    )
-    parser.add_argument(
-        "--live-no-summary",
-        action="store_true",
-        default=False,
-        help=argparse.SUPPRESS,
-    )
-    parser.add_argument(
-        "--live-no-html",
-        action="store_true",
-        default=False,
-        help="Signal dvclive logger to not produce training report.",
-    )
     parser.add_argument(
         "-w",
         "--wdir",

dvc/dependency/__init__.py

@@ -1,7 +1,7 @@
 from collections import defaultdict
 from typing import Any, Mapping
 
-from dvc.output import ARTIFACT_SCHEMA, Output
+from dvc.output import ARTIFACT_SCHEMA, DIR_FILES_SCHEMA, Output
 
 from .base import Dependency
 from .param import ParamsDependency
@@ -15,10 +15,11 @@ SCHEMA: Mapping[str, Any] = {
     **ARTIFACT_SCHEMA,
     **RepoDependency.REPO_SCHEMA,
     **ParamsDependency.PARAM_SCHEMA,
+    Output.PARAM_FILES: [DIR_FILES_SCHEMA],
 }
 
 
-def _get(stage, p, info, fs_config=None):
+def _get(stage, p, info, **kwargs):
     if info and info.get(RepoDependency.PARAM_REPO):
         repo = info.pop(RepoDependency.PARAM_REPO)
         return RepoDependency(repo, stage, p, info)
@@ -27,14 +28,15 @@ def _get(stage, p, info, fs_config=None):
         params = info.pop(ParamsDependency.PARAM_PARAMS)
         return ParamsDependency(stage, p, params)
 
-    return Dependency(stage, p, info, fs_config=fs_config)
+    return Dependency(stage, p, info, **kwargs)
 
 
 def loadd_from(stage, d_list):
     ret = []
     for d in d_list:
         p = d.pop(Output.PARAM_PATH, None)
-        ret.append(_get(stage, p, d))
+        files = d.pop(Output.PARAM_FILES, None)
+        ret.append(_get(stage, p, d, files=files))
     return ret
 
 

dvc/dependency/base.py

@@ -62,3 +62,8 @@ class Dependency(Output):
             self.fs_path = self.fs.path.version_path(
                 self.fs_path, self.meta.version_id
             )
+
+    def dumpd(self, **kwargs):
+        if self.fs.version_aware:
+            kwargs["with_files"] = True
+        return super().dumpd(**kwargs)

dvc/env.py

@@ -2,9 +2,6 @@ DVC_CHECKPOINT = "DVC_CHECKPOINT"
 DVC_DAEMON = "DVC_DAEMON"
 DVC_PAGER = "DVC_PAGER"
 DVC_ROOT = "DVC_ROOT"
-DVCLIVE_PATH = "DVCLIVE_PATH"
-DVCLIVE_SUMMARY = "DVCLIVE_SUMMARY"
-DVCLIVE_HTML = "DVCLIVE_HTML"
 DVCLIVE_RESUME = "DVCLIVE_RESUME"
 DVC_IGNORE_ISATTY = "DVC_IGNORE_ISATTY"
 DVC_EXP_GIT_REMOTE = "DVC_EXP_GIT_REMOTE"

dvc/exceptions.py

@@ -132,10 +132,17 @@ class NotDvcRepoError(DvcException):
 class CyclicGraphError(DvcException):
     def __init__(self, stages):
         assert isinstance(stages, list)
-        msg = "Pipeline has a cycle involving: {}.".format(
-            ", ".join(s.addressing for s in stages)
+        stage_part = "stage" if len(stages) == 1 else "stages"
+        msg = (
+            "Same item(s) are defined as both a dependency and an output "
+            "in {stage_part}: {stage}."
+        )
+        super().__init__(
+            msg.format(
+                stage_part=stage_part,
+                stage=", ".join(s.addressing for s in stages),
+            )
         )
-        super().__init__(msg)
 
 
 class ConfirmRemoveError(DvcException):

dvc/output.py

@@ -87,10 +87,10 @@ def loadd_from(stage, d_list):
         plot = d.pop(Output.PARAM_PLOT, False)
         persist = d.pop(Output.PARAM_PERSIST, False)
         checkpoint = d.pop(Output.PARAM_CHECKPOINT, False)
-        live = d.pop(Output.PARAM_LIVE, False)
         remote = d.pop(Output.PARAM_REMOTE, None)
         annot = {field: d.pop(field, None) for field in ANNOTATION_FIELDS}
         files = d.pop(Output.PARAM_FILES, None)
+        push = d.pop(Output.PARAM_PUSH, True)
         ret.append(
             _get(
                 stage,
@@ -101,10 +101,10 @@ def loadd_from(stage, d_list):
                 plot=plot,
                 persist=persist,
                 checkpoint=checkpoint,
-                live=live,
                 remote=remote,
                 **annot,
                 files=files,
+                push=push,
             )
         )
     return ret
@@ -118,8 +118,8 @@ def loads_from(
     plot=False,
     persist=False,
     checkpoint=False,
-    live=False,
     remote=None,
+    push=True,
 ):
     return [
         _get(
@@ -131,8 +131,8 @@ def loads_from(
             plot=plot,
             persist=persist,
             checkpoint=checkpoint,
-            live=live,
             remote=remote,
+            push=push,
         )
         for s in s_list
     ]
@@ -166,29 +166,21 @@ def load_from_pipeline(stage, data, typ="outs"):
         stage.PARAM_OUTS,
         stage.PARAM_METRICS,
         stage.PARAM_PLOTS,
-        stage.PARAM_LIVE,
     ):
         raise ValueError(f"'{typ}' key is not allowed for pipeline files.")
 
     metric = typ == stage.PARAM_METRICS
     plot = typ == stage.PARAM_PLOTS
-    live = typ == stage.PARAM_LIVE
-    if live:
-        # `live` is single object
-        data = [data]
 
     d = _merge_data(data)
 
     for path, flags in d.items():
-        plt_d, live_d = {}, {}
+        plt_d = {}
         if plot:
             from dvc.schema import PLOT_PROPS
 
             plt_d, flags = _split_dict(flags, keys=PLOT_PROPS.keys())
-        if live:
-            from dvc.schema import LIVE_PROPS
 
-            live_d, flags = _split_dict(flags, keys=LIVE_PROPS.keys())
         extra = project(
             flags,
             [
@@ -196,6 +188,7 @@ def load_from_pipeline(stage, data, typ="outs"):
                 Output.PARAM_PERSIST,
                 Output.PARAM_CHECKPOINT,
                 Output.PARAM_REMOTE,
+                Output.PARAM_PUSH,
                 *ANNOTATION_FIELDS,
             ],
         )
@@ -206,7 +199,6 @@ def load_from_pipeline(stage, data, typ="outs"):
             info={},
             plot=plt_d or plot,
             metric=metric,
-            live=live_d or live,
             **extra,
         )
 
@@ -263,10 +255,8 @@ class Output:
     PARAM_PLOT_TITLE = "title"
     PARAM_PLOT_HEADER = "header"
     PARAM_PERSIST = "persist"
-    PARAM_LIVE = "live"
-    PARAM_LIVE_SUMMARY = "summary"
-    PARAM_LIVE_HTML = "html"
     PARAM_REMOTE = "remote"
+    PARAM_PUSH = "push"
 
     METRIC_SCHEMA = Any(
         None,
@@ -292,7 +282,6 @@ class Output:
         plot=False,
         persist=False,
         checkpoint=False,
-        live=False,
         desc=None,
         type=None,  # pylint: disable=redefined-builtin
         labels=None,
@@ -301,6 +290,7 @@ class Output:
         repo=None,
         fs_config=None,
         files: List[Dict[str, Any]] = None,
+        push: bool = True,
     ):
         self.annot = Annotation(
             desc=desc, type=type, labels=labels or [], meta=meta or {}
@@ -355,7 +345,7 @@ class Output:
         self.plot = False if self.IS_DEPENDENCY else plot
         self.persist = persist
         self.checkpoint = checkpoint
-        self.live = live
+        self.can_push = push
 
         self.fs_path = self._parse_path(self.fs, fs_path)
         self.obj: Optional["HashFile"] = None
@@ -377,8 +367,12 @@ class Output:
             name=self.hash_name,
             value=getattr(self.meta, self.hash_name, None),
         )
-        if self.hash_info and self.hash_info.isdir:
+        if self.meta.nfiles or self.hash_info and self.hash_info.isdir:
             self.meta.isdir = True
+            if not self.hash_info and self.hash_name != "md5":
+                md5 = getattr(self.meta, "md5", None)
+                if md5:
+                    self.hash_info = HashInfo("md5", md5)
 
     def _parse_path(self, fs, fs_path):
         parsed = urlparse(self.def_path)
@@ -523,7 +517,10 @@ class Output:
         except NoRemoteError:
             remote = None
 
-        return DataIndexEntry(
+        if self.files and not self.obj:
+            self.obj = self.get_obj()
+
+        entry = DataIndexEntry(
             meta=self.meta,
             obj=self.obj,
             hash_info=self.hash_info,
@@ -531,6 +528,16 @@ class Output:
             cache=self.odb,
             remote=remote,
         )
+        if self.stage.is_import and not self.stage.is_repo_import:
+            dep = self.stage.deps[0]
+            entry.fs = dep.fs
+            entry.path = dep.fs_path
+            entry.meta = dep.meta
+            if not entry.obj:
+                if not dep.obj and dep.files:
+                    dep.obj = dep.get_obj()
+                entry.obj = dep.obj
+        return entry
 
     def changed_checksum(self):
         return self.hash_info != self.get_hash()
@@ -631,8 +638,16 @@ class Output:
         if self.metric:
             self.verify_metric()
 
-        if not self.use_cache:
-            _, self.meta, obj = build(
+        if self.use_cache:
+            _, self.meta, self.obj = build(
+                self.odb,
+                self.fs_path,
+                self.fs,
+                self.hash_name,
+                ignore=self.dvcignore,
+            )
+        else:
+            _, self.meta, self.obj = build(
                 self.repo.odb.local,
                 self.fs_path,
                 self.fs,
@@ -640,23 +655,11 @@ class Output:
                 ignore=self.dvcignore,
                 dry_run=True,
             )
-            self.hash_info = obj.hash_info
-            self.files = None
             if not self.IS_DEPENDENCY:
                 logger.debug(
                     "Output '%s' doesn't use cache. Skipping saving.", self
                 )
-            return
 
-        assert not self.IS_DEPENDENCY
-
-        _, self.meta, self.obj = build(
-            self.odb,
-            self.fs_path,
-            self.fs,
-            self.hash_name,
-            ignore=self.dvcignore,
-        )
         self.hash_info = self.obj.hash_info
         self.files = None
 
@@ -754,40 +757,40 @@ class Output:
 
         ret[self.PARAM_PATH] = path
 
-        if self.IS_DEPENDENCY:
-            return ret
+        if not self.IS_DEPENDENCY:
+            ret.update(self.annot.to_dict())
+            if not self.use_cache:
+                ret[self.PARAM_CACHE] = self.use_cache
 
-        ret.update(self.annot.to_dict())
-        if not self.use_cache:
-            ret[self.PARAM_CACHE] = self.use_cache
+            if isinstance(self.metric, dict):
+                if (
+                    self.PARAM_METRIC_XPATH in self.metric
+                    and not self.metric[self.PARAM_METRIC_XPATH]
+                ):
+                    del self.metric[self.PARAM_METRIC_XPATH]
 
-        if isinstance(self.metric, dict):
-            if (
-                self.PARAM_METRIC_XPATH in self.metric
-                and not self.metric[self.PARAM_METRIC_XPATH]
-            ):
-                del self.metric[self.PARAM_METRIC_XPATH]
+            if self.metric:
+                ret[self.PARAM_METRIC] = self.metric
 
-        if self.metric:
-            ret[self.PARAM_METRIC] = self.metric
+            if self.plot:
+                ret[self.PARAM_PLOT] = self.plot
 
-        if self.plot:
-            ret[self.PARAM_PLOT] = self.plot
+            if self.persist:
+                ret[self.PARAM_PERSIST] = self.persist
 
-        if self.persist:
-            ret[self.PARAM_PERSIST] = self.persist
+            if self.checkpoint:
+                ret[self.PARAM_CHECKPOINT] = self.checkpoint
 
-        if self.checkpoint:
-            ret[self.PARAM_CHECKPOINT] = self.checkpoint
+            if self.remote:
+                ret[self.PARAM_REMOTE] = self.remote
 
-        if self.live:
-            ret[self.PARAM_LIVE] = self.live
+            if not self.can_push:
+                ret[self.PARAM_PUSH] = self.can_push
 
-        if self.remote:
-            ret[self.PARAM_REMOTE] = self.remote
-
-        if self.hash_info.isdir and (
-            kwargs.get("with_files") or self.files is not None
+        if (
+            (not self.IS_DEPENDENCY or self.stage.is_import)
+            and self.hash_info.isdir
+            and (kwargs.get("with_files") or self.files is not None)
         ):
             if self.obj:
                 obj = self.obj
@@ -1040,9 +1043,15 @@ class Output:
         if not self.use_cache:
             return {}
 
+        push: bool = kwargs.pop("push", False)
         if self.stage.is_repo_import:
+            if push:
+                return {}
             return self.get_used_external(**kwargs)
 
+        if push and not self.can_push:
+            return {}
+
         if not self.hash_info:
             msg = (
                 "Output '{}'({}) is missing version info. "
@@ -1182,11 +1191,39 @@ class Output:
 
     @property
     def is_metric(self) -> bool:
-        return bool(self.metric) or bool(self.live)
+        return bool(self.metric)
 
     @property
     def is_plot(self) -> bool:
-        return bool(self.plot) or bool(self.live)
+        return bool(self.plot)
+
+    def restore_fields(self, other: "Output"):
+        """Restore attributes that need to be preserved when serialized."""
+        self.annot = other.annot
+        self.remote = other.remote
+        self.can_push = other.can_push
+
+    def merge_version_meta(self, other: "Output"):
+        """Merge version meta for files which are unchanged from other."""
+        if not self.hash_info:
+            return
+        if self.hash_info.isdir:
+            return self._merge_dir_version_meta(other)
+        if self.hash_info != other.hash_info:
+            return
+        self.meta = other.meta
+
+    def _merge_dir_version_meta(self, other: "Output"):
+        from dvc_data.hashfile.tree import update_meta
+
+        if not self.obj or not other.hash_info.isdir:
+            return
+        other_obj = other.obj if other.obj is not None else other.get_obj()
+        assert isinstance(self.obj, Tree) and isinstance(other_obj, Tree)
+        updated = update_meta(self.obj, other_obj)
+        assert updated.hash_info == self.obj.hash_info
+        self.obj = updated
+        self.files = updated.as_list(with_meta=True)
 
 
 META_SCHEMA = {
@@ -1217,5 +1254,6 @@ SCHEMA = {
     Output.PARAM_CACHE: bool,
     Output.PARAM_METRIC: Output.METRIC_SCHEMA,
     Output.PARAM_REMOTE: str,
+    Output.PARAM_PUSH: bool,
     Output.PARAM_FILES: [DIR_FILES_SCHEMA],
 }

dvc/parsing/interpolate.py

@@ -1,3 +1,4 @@
+import os
 import re
 import typing
 from collections.abc import Iterable, Mapping
@@ -70,6 +71,16 @@ def embrace(s: str):
     return BRACE_OPEN + s + BRACE_CLOSE
 
 
+def escape_str(value):
+    if os.name == "nt":
+        from subprocess import list2cmdline
+
+        return list2cmdline([value])
+    from shlex import quote
+
+    return quote(value)
+
+
 @singledispatch
 def to_str(obj) -> str:
     return str(obj)
@@ -97,12 +108,12 @@ def _(obj: dict):
                     result += f"--no-{k} "
 
         elif isinstance(v, str):
-            result += f"--{k} '{v}' "
+            result += f"--{k} {escape_str(v)} "
 
         elif isinstance(v, Iterable):
             for n, i in enumerate(v):
                 if isinstance(i, str):
-                    i = f"'{i}'"
+                    i = escape_str(i)
                 elif isinstance(i, Iterable):
                     raise ParseError(
                         f"Cannot interpolate nested iterable in '{k}'"

dvc/render/convert.py

@@ -14,14 +14,14 @@ from dvc.render.converter.vega import VegaConverter
 
 
 def _get_converter(
-    renderer_class, props
+    renderer_class, renderer_id, props, data
 ) -> Union[VegaConverter, ImageConverter]:
     from dvc_render import ImageRenderer, VegaRenderer
 
     if renderer_class.TYPE == VegaRenderer.TYPE:
-        return VegaConverter(props)
+        return VegaConverter(renderer_id, data, props)
     if renderer_class.TYPE == ImageRenderer.TYPE:
-        return ImageConverter(props)
+        return ImageConverter(renderer_id, data, props)
 
     raise ValueError(f"Invalid renderer class {renderer_class}")
 

dvc/render/converter/__init__.py

@@ -1,9 +1,19 @@
-from typing import Dict, Optional
+from typing import Any, Dict, List, Optional, Tuple
 
 
 class Converter:
-    def __init__(self, plot_properties: Optional[Dict] = None):
-        self.plot_properties = plot_properties or {}
+    def __init__(
+        self,
+        plot_id: str,
+        data: Dict[str, Any] = None,
+        properties: Optional[Dict] = None,
+    ):
+        self.plot_id = plot_id
+        self.properties = properties or {}
+        self.data = data or {}
 
-    def convert(self, data, revision: str, filename: str, **kwargs):
+    def convert(self) -> Tuple[List[Tuple[str, str, Any]], Dict]:
+        raise NotImplementedError
+
+    def flat_datapoints(self, revision: str) -> Tuple[List[Dict], Dict]:
         raise NotImplementedError

dvc/render/converter/image.py

@@ -1,6 +1,6 @@
 import base64
 import os
-from typing import TYPE_CHECKING, Dict, List, Tuple
+from typing import TYPE_CHECKING, Any, Dict, List, Tuple
 
 from dvc.render import FILENAME_FIELD, REVISION_FIELD, SRC_FIELD
 
@@ -34,25 +34,33 @@ class ImageConverter(Converter):
         base64_str = base64.b64encode(image_data).decode()
         return f"data:image;base64,{base64_str}"
 
-    def convert(
-        self, data, revision: str, filename: str, **kwargs
-    ) -> Tuple[List[Dict], Dict]:
+    def convert(self) -> Tuple[List[Tuple[str, str, Any]], Dict]:
+        datas = []
+        for filename, image_data in self.data.items():
+            datas.append((filename, "", image_data))
+        return datas, self.properties
+
+    def flat_datapoints(self, revision: str) -> Tuple[List[Dict], Dict]:
         """
         Convert the DVC Plots content to DVC Render datapoints.
         Return both generated datapoints and updated properties.
         """
-        path = self.plot_properties.get("out")
-        if path:
-            if not os.path.isdir(path):
-                os.makedirs(path, exist_ok=True)
-            src = self._write_image(
-                os.path.abspath(path), revision, filename, data
-            )
-        else:
-            src = self._encode_image(data)
-        datapoint = {
-            REVISION_FIELD: revision,
-            FILENAME_FIELD: filename,
-            SRC_FIELD: src,
-        }
-        return [datapoint], self.plot_properties
+        path = self.properties.get("out")
+        datapoints = []
+        datas, properties = self.convert()
+        for filename, _, image_data in datas:
+            if path:
+                if not os.path.isdir(path):
+                    os.makedirs(path, exist_ok=True)
+                src = self._write_image(
+                    os.path.abspath(path), revision, filename, image_data
+                )
+            else:
+                src = self._encode_image(image_data)
+            datapoint = {
+                REVISION_FIELD: revision,
+                FILENAME_FIELD: filename,
+                SRC_FIELD: src,
+            }
+            datapoints.append(datapoint)
+        return datapoints, properties

dvc/render/converter/vega.py

@@ -1,90 +1,101 @@
 from copy import deepcopy
-from functools import partial
-from typing import Dict, Iterable, List, Optional, Set, Union
+from typing import Any, Dict, Iterable, List, Tuple, Union
 
-from funcy import first, project
+from funcy import first, last
 
 from dvc.exceptions import DvcException
-from dvc.render import (
-    FILENAME_FIELD,
-    INDEX_FIELD,
-    REVISION_FIELD,
-    VERSION_FIELD,
-)
+from dvc.render import FILENAME_FIELD, INDEX_FIELD, VERSION_FIELD
 
 from . import Converter
 
 
-class FieldsNotFoundError(DvcException):
-    def __init__(self, expected_fields, found_fields):
-        expected_str = ", ".join(expected_fields)
+class FieldNotFoundError(DvcException):
+    def __init__(self, expected_field, found_fields):
         found_str = ", ".join(found_fields)
         super().__init__(
-            f"Could not find all provided fields ('{expected_str}') "
+            f"Could not find provided field ('{expected_field}') "
             f"in data fields ('{found_str}')."
         )
 
 
-class PlotDataStructureError(DvcException):
-    def __init__(self):
-        super().__init__(
-            "Plot data extraction failed. Please see "
-            "https://man.dvc.org/plots for supported data formats."
-        )
+def _lists(blob: Union[Dict, List]) -> Iterable[List]:
+    if isinstance(blob, list):
+        yield blob
+    else:
+        for _, value in blob.items():
+            if isinstance(value, dict):
+                yield from _lists(value)
+            elif isinstance(value, list):
+                yield value
 
 
-def _filter_fields(
-    datapoints: List[Dict], fields: Set, **kwargs
-) -> List[Dict]:
-    if not fields:
-        return datapoints
-    assert isinstance(fields, set)
-
-    new_data = []
-    for data_point in datapoints:
-        keys = set(data_point.keys())
-        if not fields <= keys:
-            raise FieldsNotFoundError(fields, keys)
-
-        new_data.append(project(data_point, fields))
-
-    return new_data
+def _file_field(*args):
+    for axis_def in args:
+        if axis_def is not None:
+            for file, val in axis_def.items():
+                if isinstance(val, str):
+                    yield file, val
+                elif isinstance(val, list):
+                    for field in val:
+                        yield file, field
 
 
-def _lists(dictionary: Dict):
-    for _, value in dictionary.items():
-        if isinstance(value, dict):
-            yield from _lists(value)
-        elif isinstance(value, list):
-            yield value
+def _find(
+    filename: str,
+    field: str,
+    data_series: List[Tuple[str, str, Any]],
+):
+    for data_file, data_field, data in data_series:
+        if data_file == filename and data_field == field:
+            return data_file, data_field, data
+    return None
 
 
-def _find_first_list(
-    data: Union[Dict, List], fields: Set, **kwargs
-) -> List[Dict]:
-    fields = fields or set()
-
-    if not isinstance(data, dict):
-        return data
-
-    for lst in _lists(data):
-        if (
-            all(isinstance(dp, dict) for dp in lst)
-            # if fields is empty, it will match any set
-            and set(first(lst).keys()) & fields == fields
-        ):
-            return lst
-
-    raise PlotDataStructureError()
+def _verify_field(file2datapoints: Dict[str, List], filename: str, field: str):
+    if filename in file2datapoints:
+        datapoint = first(file2datapoints[filename])
+        if field not in datapoint:
+            raise FieldNotFoundError(field, datapoint.keys())
+    return
 
 
-def _append_index(datapoints: List[Dict], **kwargs) -> List[Dict]:
-    if INDEX_FIELD in first(datapoints).keys():
-        return datapoints
+def _get_x(properties: Dict, file2datapoints: Dict[str, List[Dict]]):
+    x = properties.get("x", None)
+    if x is not None and isinstance(x, dict):
+        filename, field = first(_file_field(x))
+        _verify_field(file2datapoints, filename, field)
+        return filename, field
+    return None
 
-    for index, data_point in enumerate(datapoints):
-        data_point[INDEX_FIELD] = index
-    return datapoints
+
+def _get_ys(properties, file2datapoints: Dict[str, List[Dict]]):
+    y = properties.get("y", None)
+    if y is not None:
+        for filename, field in _file_field(y):
+            _verify_field(file2datapoints, filename, field)
+            yield filename, field
+
+
+def _is_datapoints(lst: List[Dict]):
+    """
+    check if dict keys match, datapoints with different keys mgiht lead
+    to unexpected behavior
+    """
+
+    return all(isinstance(item, dict) for item in lst) and set(
+        first(lst).keys()
+    ) == {key for keys in lst for key in keys}
+
+
+def get_datapoints(file_content: Dict):
+    result: List[Dict[str, Any]] = []
+    for lst in _lists(file_content):
+        if _is_datapoints(lst):
+            for index, datapoint in enumerate(lst):
+                if len(result) <= index:
+                    result.append({})
+                result[index].update(datapoint)
+    return result
 
 
 class VegaConverter(Converter):
@@ -95,228 +106,215 @@ class VegaConverter(Converter):
     ('x', 'y') it will attempt to fill in the blanks.
     """
 
-    def __init__(self, plot_properties: Optional[Dict] = None):
-        super().__init__(plot_properties)
+    def __init__(
+        self, plot_id: str, data: Dict = None, properties: Dict = None
+    ):
+        super().__init__(plot_id, data, properties)
+        self.plot_id = plot_id
         self.inferred_properties: Dict = {}
 
-        self.steps = []
+        # TODO we should be handling that in `convert`,
+        #      to avoid stateful `self.inferred_properties`
+        self._infer_x_y()
 
-        self._infer_x()
-        self._infer_fields()
+    def _infer_y_from_data(self):
+        if self.plot_id in self.data:
+            for lst in _lists(self.data[self.plot_id]):
+                if all(isinstance(item, dict) for item in lst):
+                    datapoint = first(lst)
+                    field = last(datapoint.keys())
+                    self.inferred_properties["y"] = {self.plot_id: field}
+                    break
 
-        self.steps.append(
-            (
-                "find_data",
-                partial(
-                    _find_first_list,
-                    fields=self.inferred_properties.get("fields", set())
-                    - {INDEX_FIELD},
-                ),
-            )
-        )
+    def _infer_x_y(self):
+        def _infer_files(from_name, to_name):
+            from_value = self.properties.get(from_name, None)
+            to_value = self.properties.get(to_name, None)
 
-        if not self.plot_properties.get("x", None):
-            self.steps.append(("append_index", partial(_append_index)))
-
-        self.steps.append(
-            (
-                "filter_fields",
-                partial(
-                    _filter_fields,
-                    fields=self.inferred_properties.get("fields", set()),
-                ),
-            )
-        )
-        self.steps.append(
-            (
-                "infer_y",
-                partial(
-                    self._infer_y,
-                ),
-            )
-        )
-
-        self.steps.append(
-            (
-                "generate_y",
-                partial(
-                    self._generate_y_values,
-                ),
-            )
-        )
-
-    def _infer_x(self):
-        if not self.plot_properties.get("x", None):
-            self.inferred_properties["x"] = INDEX_FIELD
-
-    def skip_step(self, name: str):
-        self.steps = [(_name, fn) for _name, fn in self.steps if _name != name]
-
-    def _infer_fields(self):
-        fields = self.plot_properties.get("fields", set())
-        if fields:
-            fields = {
-                *fields,
-                self.plot_properties.get("x", None),
-                self.plot_properties.get("y", None),
-                self.inferred_properties.get("x", None),
-            } - {None}
-            self.inferred_properties["fields"] = fields
-
-    def _infer_y(self, datapoints: List[Dict], **kwargs):
-        if "y" not in self.plot_properties:
-            data_fields = list(first(datapoints))
-            skip = (
-                REVISION_FIELD,
-                self.plot_properties.get("x", None)
-                or self.inferred_properties.get("x"),
-                FILENAME_FIELD,
-                VERSION_FIELD,
-            )
-            inferred_y = first(
-                f for f in reversed(data_fields) if f not in skip
-            )
-            if "y" in self.inferred_properties:
-                previous_y = self.inferred_properties["y"]
-                if previous_y != inferred_y:
-                    raise DvcException(
-                        f"Inferred y ('{inferred_y}' value does not match"
-                        f"previously matched one ('f{previous_y}')."
-                    )
+            if isinstance(to_value, str):
+                self.inferred_properties[to_name] = {}
+                if isinstance(from_value, dict):
+                    for file in from_value.keys():
+                        self.inferred_properties[to_name][file] = to_value
+                else:
+                    self.inferred_properties[to_name][self.plot_id] = to_value
             else:
-                self.inferred_properties["y"] = inferred_y
-        return datapoints
+                self.inferred_properties[to_name] = to_value
+
+        _infer_files("y", "x")
+        _infer_files("x", "y")
+
+        if self.inferred_properties.get("y", None) is None:
+            self._infer_y_from_data()
+
+    def _find_datapoints(self):
+        result = {}
+        for file, content in self.data.items():
+            result[file] = get_datapoints(content)
+
+        return result
+
+    @staticmethod
+    def infer_y_label(properties):
+        y_label = properties.get("y_label", None)
+        if y_label is None:
+            y = properties.get("y", None)
+            if isinstance(y, dict):
+                fields = {field for _, field in _file_field(y)}
+                if len(fields) == 1:
+                    y_label = first(fields)
+                else:
+                    y_label = "y"
+            elif isinstance(y, list):
+                y_label = "y"
+            elif isinstance(y, str):
+                y_label = y
+
+        return y_label
+
+    @staticmethod
+    def infer_x_label(properties):
+        x_label = properties.get("x_label", None)
+        if x_label is None:
+            x = properties.get("x", None)
+            if isinstance(x, dict):
+                fields = {field for _, field in _file_field(x)}
+                if len(fields) == 1:
+                    x_label = first(fields)
+                else:
+                    x_label = "x"
+            else:
+                x_label = INDEX_FIELD
+        return x_label
+
+    def flat_datapoints(self, revision):
+
+        file2datapoints, properties = self.convert()
+
+        props_update = {}
+
+        x = _get_x(properties, file2datapoints)
+
+        # assign "step" if no x provided
+        if not x:
+            x_file, x_field = (
+                None,
+                INDEX_FIELD,
+            )
+        else:
+            x_file, x_field = x
+        props_update["x"] = x_field
+
+        ys = list(_get_ys(properties, file2datapoints))
+
+        all_datapoints = []
+        all_y_fields = {y_field for _, y_field in ys}
+
+        # override to unified y field name if there are different y fields
+        if len(all_y_fields) > 1:
+            props_update["y"] = "dvc_inferred_y_value"
+        else:
+            props_update["y"] = first(all_y_fields)
+
+        for y_file, y_field in ys:
+            datapoints = deepcopy(file2datapoints.get(y_file, []))
+
+            if props_update.get("y", None) == "dvc_inferred_y_value":
+                _update_from_field(
+                    datapoints,
+                    field="dvc_inferred_y_value",
+                    source_field=y_field,
+                )
+
+            if x_field == INDEX_FIELD and x_file is None:
+                _update_from_index(datapoints, INDEX_FIELD)
+            else:
+                x_datapoints = file2datapoints.get(x_file, [])
+                try:
+                    _update_from_field(
+                        datapoints,
+                        field=x_field,
+                        source_datapoints=x_datapoints,
+                    )
+                except IndexError:
+                    raise DvcException(
+                        f"Cannot join '{x_field}' from '{x_file}' and "
+                        "'{y_field}' from '{y_file}'. "
+                        "They have to have same length."
+                    )
+
+            _update_all(
+                datapoints,
+                update_dict={
+                    VERSION_FIELD: {
+                        "revision": revision,
+                        FILENAME_FIELD: y_file,
+                        "field": y_field,
+                    }
+                },
+            )
+
+            all_datapoints.extend(datapoints)
+
+        if not all_datapoints:
+            return [], {}
+
+        properties = {**properties, **props_update}
+
+        return all_datapoints, properties
 
     def convert(
         self,
-        data,
-        revision: str,
-        filename: str,
-        skip: List = None,
-        **kwargs,
     ):
         """
         Convert the data. Fill necessary fields ('x', 'y') and return both
-        generated datapoints and updated properties.
+        generated datapoints and updated properties. If `x` is not provided,
+        leave it as None, fronteds should handle it.
+
+        NOTE: Studio uses this method.
+              The only thing studio FE handles is filling `x` and `y`.
+              `x/y_label` should be filled here.
+
+              Datapoints are not stripped according to config, because users
+              might be utilizing other fields in their custom plots.
         """
-        if not skip:
-            skip = []
+        datapoints = self._find_datapoints()
+        properties = {**self.properties, **self.inferred_properties}
 
-        processed = deepcopy(data)
+        properties["y_label"] = self.infer_y_label(properties)
+        properties["x_label"] = self.infer_x_label(properties)
 
-        for step_name, step in self.steps:
-            if step_name not in skip:
-                processed = step(  # type: ignore
-                    processed,
-                    revision=revision,
-                    filename=filename,
-                )
+        return datapoints, properties
 
-        return processed, {**self.plot_properties, **self.inferred_properties}
 
-    def _generate_y_values(  # noqa: C901
-        self,
-        datapoints: List[Dict],
-        revision: str,
-        filename: str,
-        **kwargs,
-    ) -> List[Dict]:
+def _update_from_field(
+    target_datapoints: List[Dict],
+    field: str,
+    source_datapoints: List[Dict] = None,
+    source_field: str = None,
+):
+    if source_datapoints is None:
+        source_datapoints = target_datapoints
+    if source_field is None:
+        source_field = field
 
-        y_values = self.plot_properties.get(
-            "y", None
-        ) or self.inferred_properties.get("y", None)
+    if len(source_datapoints) != len(target_datapoints):
+        raise IndexError(
+            "Source and target datapoints must have the same length"
+        )
 
-        assert y_values is not None
+    for index, datapoint in enumerate(target_datapoints):
+        source_datapoint = source_datapoints[index]
+        if source_field in source_datapoint:
+            datapoint[field] = source_datapoint[source_field]
 
-        result = []
-        properties_update = {}
 
-        def _add_version_info(datapoint, version_info):
-            tmp = datapoint.copy()
-            tmp[VERSION_FIELD] = version_info
-            return tmp
+def _update_from_index(datapoints: List[Dict], new_field: str):
+    for index, datapoint in enumerate(datapoints):
+        datapoint[new_field] = index
 
-        def _version_info(revision, filename=None, field=None):
-            res = {"revision": revision}
-            if filename is not None:
-                res["filename"] = filename
-            if field is not None:
-                res["field"] = field
-            return res
 
-        def _generate_y(datapoint, field):
-            tmp = datapoint.copy()
-            tmp["dvc_inferred_y_value"] = datapoint[field]
-            tmp = _add_version_info(
-                tmp, _version_info(revision, filename, field)
-            )
-            if (
-                "y_label" not in properties_update
-                and "y_label" not in self.plot_properties
-            ):
-                properties_update["y_label"] = "y"
+def _update_all(datapoints: List[Dict], update_dict: Dict):
 
-            properties_update["y"] = "dvc_inferred_y_value"
-
-            return tmp
-
-        if isinstance(y_values, str):
-            for datapoint in datapoints:
-                result.append(
-                    _add_version_info(
-                        datapoint, _version_info(revision, filename, y_values)
-                    )
-                )
-
-        if isinstance(y_values, list):
-            for datapoint in datapoints:
-                for y_val in y_values:
-                    if y_val in datapoint:
-                        result.append(_generate_y(datapoint, y_val))
-
-        if isinstance(y_values, dict):
-
-            def _to_set(values: Iterable):
-                result = set()
-                for val in values:
-                    if isinstance(val, list):
-                        for elem in val:
-                            result.add(elem)
-                    else:
-                        result.add(val)
-
-                return result
-
-            all_fields = _to_set(y_values.values())
-            if (
-                all([isinstance(field, str) for field in all_fields])
-                and len(all_fields) == 1
-            ):
-                # if we use the same field from all files,
-                # we dont have to generate it
-                y_field = all_fields.pop()
-                for datapoint in datapoints:
-                    result.append(
-                        _add_version_info(
-                            datapoint,
-                            _version_info(revision, filename, y_field),
-                        )
-                    )
-                properties_update.update({"y": y_field})
-            else:
-                for def_filename, val in y_values.items():
-                    if isinstance(val, str):
-                        fields = [val]
-                    if isinstance(val, list):
-                        fields = val
-                    for datapoint in datapoints:
-                        for field in fields:
-                            if field in datapoint and def_filename in filename:
-                                result.append(_generate_y(datapoint, field))
-
-        self.inferred_properties = {
-            **self.inferred_properties,
-            **properties_update,
-        }
-
-        return result
+    for datapoint in datapoints:
+        datapoint.update(update_dict)

dvc/render/match.py

@@ -42,7 +42,7 @@ class PlotsData:
         return dict(groups)
 
     def get_definition_data(self, target_files, rev):
-        result = []
+        result = {}
         for file in target_files:
             file_content = (
                 self.data.get(rev, {})
@@ -52,7 +52,7 @@ class PlotsData:
                 .get("data", {})
             )
             if file_content:
-                result.append((file, file_content))
+                result[file] = file_content
 
         return result
 
@@ -91,15 +91,14 @@ def match_defs_renderers(
                 renderer_cls = VegaRenderer
                 renderer_id = plot_id
 
-            converter = _get_converter(renderer_cls, props)
+            converter = _get_converter(
+                renderer_cls, inner_id, props, definitions_data
+            )
 
-            for filename, plot_data in definitions_data:
-                dps, final_props = converter.convert(
-                    revision=rev,
-                    filename=filename,
-                    data=plot_data,
-                )
-                plot_datapoints.extend(dps)
+            dps, rev_props = converter.flat_datapoints(rev)
+            if not final_props and rev_props:
+                final_props = rev_props
+            plot_datapoints.extend(dps)
 
         if "title" not in final_props:
             final_props["title"] = renderer_id

dvc/repo/__init__.py

@@ -269,7 +269,7 @@ class Repo:
         except SCMError:
             if self._uninitialized:
                 # might not be a git/dvc repo at all
-                # used in `params/metrics/plots/live` targets
+                # used in `params/metrics/plots` targets
                 return SCM(self.root_dir, no_scm=True)
             raise
 
@@ -401,6 +401,7 @@ class Repo:
         used_run_cache=None,
         revs=None,
         num=1,
+        push: bool = False,
     ):
         """Get the stages related to the given target and collect
         the `info` of its outputs.
@@ -435,6 +436,7 @@ class Repo:
                 jobs=jobs,
                 recursive=recursive,
                 with_deps=with_deps,
+                push=push,
             ).items():
                 used[odb].update(objs)
 

dvc/repo/add.py

@@ -187,7 +187,7 @@ def add(  # noqa: C901
                 stage.transfer(source, to_remote=to_remote, odb=odb, **kwargs)
             else:
                 try:
-                    stage.save()
+                    stage.save(merge_versioned=True)
                     if not no_commit:
                         stage.commit()
                 except CacheLinkError:

dvc/repo/data.py

@@ -12,6 +12,7 @@ from typing import (
     Optional,
     Tuple,
     TypedDict,
+    Union,
     cast,
 )
 
@@ -19,10 +20,9 @@ from dvc.fs.git import GitFileSystem
 from dvc.ui import ui
 
 if TYPE_CHECKING:
-    from scmrepo.base import Base
-
     from dvc.output import Output
     from dvc.repo import Repo
+    from dvc.scm import Git, NoSCM
     from dvc_data.hashfile.db import HashFileDB
     from dvc_data.hashfile.hash_info import HashInfo
     from dvc_data.hashfile.obj import HashFile
@@ -140,7 +140,9 @@ class GitInfo(TypedDict, total=False):
     is_dirty: bool
 
 
-def _git_info(scm: "Base", untracked_files: str = "all") -> GitInfo:
+def _git_info(
+    scm: Union["Git", "NoSCM"], untracked_files: str = "all"
+) -> GitInfo:
     from scmrepo.exceptions import SCMError
 
     from dvc.scm import NoSCM

dvc/repo/experiments/__init__.py

@@ -4,7 +4,7 @@ import re
 import time
 from typing import Dict, Iterable, Optional
 
-from funcy import cached_property, first
+from funcy import cached_property, chain, first
 
 from dvc.exceptions import DvcException
 from dvc.ui import ui
@@ -171,7 +171,18 @@ class Experiments:
     ) -> Dict[str, str]:
         results: Dict[str, str] = {}
         if entries is None:
-            entries = list(self.celery_queue.iter_queued())
+            entries = list(
+                chain(
+                    self.celery_queue.iter_active(),
+                    self.celery_queue.iter_queued(),
+                )
+            )
+
+        logger.debug(
+            "reproduce all these entries '%s'",
+            entries,
+        )
+
         if not entries:
             return results
 
@@ -189,7 +200,10 @@ class Experiments:
                     time.sleep(1)
                 self.celery_queue.follow(entry)
                 # wait for task collection to complete
-                result = self.celery_queue.get_result(entry)
+                try:
+                    result = self.celery_queue.get_result(entry)
+                except FileNotFoundError:
+                    result = None
                 if result is None or result.exp_hash is None:
                     name = entry.name or entry.stash_rev[:7]
                     failed.append(name)

dvc/repo/experiments/diff.py

@@ -7,7 +7,7 @@ logger = logging.getLogger(__name__)
 
 
 def diff(repo, *args, a_rev=None, b_rev=None, param_deps=False, **kwargs):
-    from dvc.repo.experiments.show import _collect_experiment_commit
+    from dvc.repo.experiments.show import collect_experiment_commit
     from dvc.scm import resolve_rev
 
     if repo.scm.no_commits:
@@ -15,15 +15,15 @@ def diff(repo, *args, a_rev=None, b_rev=None, param_deps=False, **kwargs):
 
     if a_rev:
         rev = resolve_rev(repo.scm, a_rev)
-        old = _collect_experiment_commit(repo, rev, param_deps=param_deps)
+        old = collect_experiment_commit(repo, rev, param_deps=param_deps)
     else:
-        old = _collect_experiment_commit(repo, "HEAD", param_deps=param_deps)
+        old = collect_experiment_commit(repo, "HEAD", param_deps=param_deps)
 
     if b_rev:
         rev = resolve_rev(repo.scm, b_rev)
-        new = _collect_experiment_commit(repo, rev, param_deps=param_deps)
+        new = collect_experiment_commit(repo, rev, param_deps=param_deps)
     else:
-        new = _collect_experiment_commit(
+        new = collect_experiment_commit(
             repo, "workspace", param_deps=param_deps
         )
 

dvc/repo/experiments/executor/base.py

@@ -602,29 +602,22 @@ class BaseExecutor(ABC):
             logger.debug("Running repro in '%s'", os.getcwd())
             yield dvc
             info.status = TaskStatus.SUCCESS
-            if infofile is not None:
-                info.dump_json(infofile)
-
         except CheckpointKilledError:
             info.status = TaskStatus.FAILED
-            if infofile is not None:
-                info.dump_json(infofile)
             raise
         except DvcException:
             if log_errors:
                 logger.exception("")
             info.status = TaskStatus.FAILED
-            if infofile is not None:
-                info.dump_json(infofile)
             raise
         except Exception:
             if log_errors:
                 logger.exception("unexpected error")
             info.status = TaskStatus.FAILED
-            if infofile is not None:
-                info.dump_json(infofile)
             raise
         finally:
+            if infofile is not None:
+                info.dump_json(infofile)
             dvc.close()
             os.chdir(old_cwd)
 

dvc/repo/experiments/executor/local.py

@@ -47,9 +47,9 @@ class BaseLocalExecutor(BaseExecutor):
         return SCM(self.root_dir)
 
     def cleanup(self, infofile: str):
-        super().cleanup(infofile)
         self.scm.close()
         del self.scm
+        super().cleanup(infofile)
 
     def collect_cache(
         self, repo: "Repo", exp_ref: "ExpRefInfo", run_cache: bool = True

dvc/repo/experiments/init.py

@@ -248,11 +248,6 @@ def init(
         except MissingParamsFile:
             pass
 
-    models = context.get("models")
-    live_path = context.pop("live", None)
-    live_metrics = f"{live_path}.json" if live_path else None
-    live_plots = os.path.join(live_path, "scalars") if live_path else None
-
     if type == "checkpoint":
         outs_key = "checkpoints"
         metrics_key = "metrics_persist_no_cache"
@@ -262,6 +257,13 @@ def init(
         metrics_key = "metrics_no_cache"
         plots_key = "plots_no_cache"
 
+    models = [context.get("models")]
+    metrics = [context.get("metrics")]
+    plots = [context.get("plots")]
+    if live_path := context.pop("live", None):
+        metrics.append(os.path.join(live_path, "metrics.json"))
+        plots.append(os.path.join(live_path, "plots"))
+
     stage = repo.stage.create(
         name=name,
         cmd=context["cmd"],
@@ -269,9 +271,9 @@ def init(
         params=[{params: None}] if params else None,
         force=force,
         **{
-            outs_key: compact([models]),
-            metrics_key: compact([context.get("metrics"), live_metrics]),
-            plots_key: compact([context.get("plots"), live_plots]),
+            outs_key: compact(models),
+            metrics_key: compact(metrics),
+            plots_key: compact(plots),
         },
     )
 

dvc/repo/experiments/queue/base.py

@@ -1,6 +1,5 @@
 import logging
 import os
-import sys
 from abc import ABC, abstractmethod
 from dataclasses import asdict, dataclass
 from typing import (
@@ -526,16 +525,9 @@ class BaseStashQueue(ABC):
         .. _Hydra Override:
             https://hydra.cc/docs/advanced/override_grammar/basic/
         """
-        logger.debug("Using experiment params '%s'", params)
+        from dvc.utils.hydra import apply_overrides, compose_and_dump
 
-        try:
-            from dvc.utils.hydra import apply_overrides, compose_and_dump
-        except ValueError:
-            if sys.version_info >= (3, 11):
-                raise DvcException(
-                    "--set-param is not supported in Python >= 3.11"
-                )
-            raise
+        logger.debug("Using experiment params '%s'", params)
 
         hydra_config = self.repo.config.get("hydra", {})
         hydra_enabled = hydra_config.get("enabled", False)

dvc/repo/experiments/queue/celery.py

@@ -15,7 +15,7 @@ from typing import (
 )
 
 from celery.result import AsyncResult
-from funcy import cached_property
+from funcy import cached_property, first
 from kombu.message import Message
 
 from dvc.daemon import daemonize
@@ -23,13 +23,9 @@ from dvc.exceptions import DvcException
 from dvc.ui import ui
 
 from ..exceptions import UnresolvedQueueExpNamesError
-from ..executor.base import (
-    EXEC_TMP_DIR,
-    ExecutorInfo,
-    ExecutorResult,
-    TaskStatus,
-)
+from ..executor.base import EXEC_TMP_DIR, ExecutorInfo, ExecutorResult
 from .base import BaseStashQueue, QueueDoneResult, QueueEntry, QueueGetResult
+from .exceptions import CannotKillTasksError
 from .tasks import run_exp
 from .utils import fetch_running_exp_from_temp_dir
 
@@ -187,6 +183,7 @@ class LocalCeleryQueue(BaseStashQueue):
                 continue
             args, kwargs, _embed = msg.decode()
             entry_dict = kwargs.get("entry_dict", args[0])
+            logger.debug("Found queued task %s", entry_dict["stash_rev"])
             yield _MessageEntry(msg, QueueEntry.from_dict(entry_dict))
 
     def _iter_processed(self) -> Generator[_MessageEntry, None, None]:
@@ -203,6 +200,7 @@ class LocalCeleryQueue(BaseStashQueue):
             task_id = msg.headers["id"]
             result: AsyncResult = AsyncResult(task_id)
             if not result.ready():
+                logger.debug("Found active task %s", entry.stash_rev)
                 yield _TaskEntry(result, entry)
 
     def _iter_done_tasks(self) -> Generator[_TaskEntry, None, None]:
@@ -211,6 +209,7 @@ class LocalCeleryQueue(BaseStashQueue):
             task_id = msg.headers["id"]
             result: AsyncResult = AsyncResult(task_id)
             if result.ready():
+                logger.debug("Found done task %s", entry.stash_rev)
                 yield _TaskEntry(result, entry)
 
     def iter_active(self) -> Generator[QueueEntry, None, None]:
@@ -243,67 +242,115 @@ class LocalCeleryQueue(BaseStashQueue):
     def reproduce(self) -> Mapping[str, Mapping[str, str]]:
         raise NotImplementedError
 
-    def get_result(
+    def _load_info(self, rev: str) -> ExecutorInfo:
+        infofile = self.get_infofile_path(rev)
+        return ExecutorInfo.load_json(infofile)
+
+    def _get_done_result(
         self, entry: QueueEntry, timeout: Optional[float] = None
-    ) -> Optional[ExecutorResult]:
+    ) -> Optional["ExecutorResult"]:
         from celery.exceptions import TimeoutError as _CeleryTimeout
 
-        def _load_info(rev: str) -> ExecutorInfo:
-            infofile = self.get_infofile_path(rev)
-            return ExecutorInfo.load_json(infofile)
-
-        def _load_collected(rev: str) -> Optional[ExecutorResult]:
-            executor_info = _load_info(rev)
-            if executor_info.status > TaskStatus.SUCCESS:
+        for msg, processed_entry in self._iter_processed():
+            if entry.stash_rev == processed_entry.stash_rev:
+                task_id = msg.headers["id"]
+                result: AsyncResult = AsyncResult(task_id)
+                if not result.ready():
+                    logger.debug(
+                        "Waiting for exp task '%s' to complete", result.id
+                    )
+                    try:
+                        result.get(timeout=timeout)
+                    except _CeleryTimeout as exc:
+                        raise DvcException(
+                            "Timed out waiting for exp to finish."
+                        ) from exc
+                executor_info = self._load_info(entry.stash_rev)
                 return executor_info.result
-            raise FileNotFoundError
+        raise FileNotFoundError
+
+    def get_result(
+        self, entry: QueueEntry, timeout: Optional[float] = None
+    ) -> Optional["ExecutorResult"]:
 
         try:
-            return _load_collected(entry.stash_rev)
+            return self._get_done_result(entry, timeout)
         except FileNotFoundError:
-            # Infofile will not be created until execution begins
             pass
 
         for queue_entry in self.iter_queued():
             if entry.stash_rev == queue_entry.stash_rev:
                 raise DvcException("Experiment has not been started.")
-        for result, active_entry in self._iter_active_tasks():
-            if entry.stash_rev == active_entry.stash_rev:
-                logger.debug(
-                    "Waiting for exp task '%s' to complete", result.id
-                )
-                try:
-                    result.get(timeout=timeout)
-                except _CeleryTimeout as exc:
-                    raise DvcException(
-                        "Timed out waiting for exp to finish."
-                    ) from exc
-                executor_info = _load_info(entry.stash_rev)
-                return executor_info.result
 
         # NOTE: It's possible for an exp to complete while iterating through
         # other queued and active tasks, in which case the exp will get moved
         # out of the active task list, and needs to be loaded here.
-        return _load_collected(entry.stash_rev)
+        return self._get_done_result(entry, timeout)
+
+    def _get_running_task_ids(self) -> Set[str]:
+        running_task_ids: Set[str] = set()
+        active_workers = self.worker_status()
+        for _, tasks in active_workers.items():
+            task = first(tasks)
+            if task:
+                running_task_ids.add(task["id"])
+        return running_task_ids
+
+    def _try_to_kill_tasks(
+        self, to_kill: Dict[QueueEntry, str]
+    ) -> Dict[QueueEntry, str]:
+        fail_to_kill_entries: Dict[QueueEntry, str] = {}
+        for queue_entry, rev in to_kill.items():
+            try:
+                self.proc.kill(queue_entry.stash_rev)
+                logger.debug(f"Task {rev} had been killed.")
+            except ProcessLookupError:
+                fail_to_kill_entries[queue_entry] = rev
+        return fail_to_kill_entries
+
+    def _mark_inactive_tasks_failure(self, remained_entries):
+        remained_revs: List[str] = []
+        running_ids = self._get_running_task_ids()
+        logger.debug(f"Current running tasks ids: {running_ids}.")
+        for msg, entry in self._iter_processed():
+            if entry not in remained_entries:
+                continue
+            task_id = msg.headers["id"]
+            if task_id in running_ids:
+                remained_revs.append(remained_entries[entry])
+            else:
+                result: AsyncResult = AsyncResult(task_id)
+                if not result.ready():
+                    logger.debug(
+                        f"Task id {task_id} rev {remained_entries[entry]} "
+                        "marked as failure."
+                    )
+                    self.celery.backend.mark_as_failure(task_id, None)
+
+        if remained_revs:
+            raise CannotKillTasksError(remained_revs)
 
     def kill(self, revs: Collection[str]) -> None:
-        to_kill: Set[QueueEntry] = set()
         name_dict: Dict[
             str, Optional[QueueEntry]
         ] = self.match_queue_entry_by_name(set(revs), self.iter_active())
 
-        missing_rev: List[str] = []
+        to_kill: Dict[QueueEntry, str] = {}
+        missing_revs: List[str] = []
         for rev, queue_entry in name_dict.items():
             if queue_entry is None:
-                missing_rev.append(rev)
+                missing_revs.append(rev)
             else:
-                to_kill.add(queue_entry)
+                to_kill[queue_entry] = rev
+        if missing_revs:
+            raise UnresolvedQueueExpNamesError(missing_revs)
 
-        if missing_rev:
-            raise UnresolvedQueueExpNamesError(missing_rev)
+        fail_to_kill_entries: Dict[QueueEntry, str] = self._try_to_kill_tasks(
+            to_kill
+        )
 
-        for queue_entry in to_kill:
-            self.proc.kill(queue_entry.stash_rev)
+        if fail_to_kill_entries:
+            self._mark_inactive_tasks_failure(fail_to_kill_entries)
 
     def shutdown(self, kill: bool = False):
         self.celery.control.shutdown()
@@ -359,10 +406,11 @@ class LocalCeleryQueue(BaseStashQueue):
         ) as fobj:
             ui.write(fobj.read())
 
-    def worker_status(self) -> Dict:
+    def worker_status(self) -> Dict[str, List[Dict]]:
         """Return the current active celery worker"""
         status = self.celery.control.inspect().active() or {}
         logger.debug(f"Worker status: {status}")
+
         return status
 
     def clear(self, *args, **kwargs):

dvc/repo/experiments/queue/exceptions.py

@@ -0,0 +1,12 @@
+from typing import Collection
+
+from dvc.exceptions import DvcException
+
+
+class CannotKillTasksError(DvcException):
+    def __init__(self, revs: Collection[str]):
+        rev_str = ",".join(revs)
+        super().__init__(
+            f"Task '{rev_str}' is initializing, please wait a few seconds "
+            "until the experiments start running to retry the kill operation."
+        )

dvc/repo/experiments/queue/tempdir.py

@@ -77,9 +77,8 @@ class TempDirQueue(WorkspaceQueue):
         for stash_rev in self.proc:
             infofile = self.get_infofile_path(stash_rev)
             executor_info = ExecutorInfo.load_json(infofile)
-            if (
-                not executor_info.status <= TaskStatus.SUCCESS
-                and os.path.exists(executor_info.root_dir)
+            if executor_info.status <= TaskStatus.SUCCESS and os.path.exists(
+                executor_info.root_dir
             ):
                 yield QueueEntry(
                     self.repo.root_dir,

dvc/repo/experiments/queue/utils.py

@@ -1,6 +1,8 @@
 import logging
 from typing import TYPE_CHECKING, Dict
 
+from scmrepo.exceptions import SCMError
+
 from ..executor.base import ExecutorInfo, TaskStatus
 
 logger = logging.getLogger(__name__)
@@ -39,7 +41,7 @@ def fetch_running_exp_from_temp_dir(
         if info.git_url and fetch_refs and info.status > TaskStatus.PREPARING:
 
             def on_diverged(_ref: str, _checkpoint: bool):
-                return False
+                return True
 
             executor = TempDirExecutor.from_info(info)
             try:
@@ -52,7 +54,7 @@ def fetch_running_exp_from_temp_dir(
                     result[rev]["last"] = last_rev
                     if last_rev:
                         result[last_rev] = info.asdict()
-            except InvalidRemoteSCMRepo:
+            except (InvalidRemoteSCMRepo, SCMError):
                 # ignore stale info files
                 del result[rev]
     return result

dvc/repo/experiments/run.py

@@ -1,9 +1,8 @@
 import logging
-import sys
 from typing import Dict, Iterable, Optional
 
 from dvc.dependency.param import ParamsDependency
-from dvc.exceptions import DvcException, InvalidArgumentError
+from dvc.exceptions import InvalidArgumentError
 from dvc.repo import locked
 from dvc.ui import ui
 from dvc.utils.cli_parse import to_path_overrides
@@ -29,19 +28,24 @@ def run(
     Returns a dict mapping new experiment SHAs to the results
     of `repro` for that experiment.
     """
-    try:
-        from dvc.utils.hydra import to_hydra_overrides
-    except ValueError:
-        if sys.version_info >= (3, 11):
-            raise DvcException("exp run is not supported in Python >= 3.11")
-        raise
-
     if run_all:
-        entries = list(repo.experiments.celery_queue.iter_queued())
-        return repo.experiments.reproduce_celery(entries, jobs=jobs)
+        return repo.experiments.reproduce_celery(jobs=jobs)
 
+    hydra_sweep = None
     if params:
+        from dvc.utils.hydra import to_hydra_overrides
+
         path_overrides = to_path_overrides(params)
+        hydra_sweep = any(
+            x.is_sweep_override()
+            for param_file in path_overrides
+            for x in to_hydra_overrides(path_overrides[param_file])
+        )
+
+        if hydra_sweep and not queue:
+            raise InvalidArgumentError(
+                "Sweep overrides can't be used without `--queue`"
+            )
     else:
         path_overrides = {}
 
@@ -51,23 +55,16 @@ def run(
         # Force `_update_params` even if `--set-param` was not used
         path_overrides[hydra_output_file] = []
 
-    hydra_sweep = any(
-        x.is_sweep_override()
-        for param_file in path_overrides
-        for x in to_hydra_overrides(path_overrides[param_file])
-    )
-
-    if hydra_sweep and not queue:
-        raise InvalidArgumentError(
-            "Sweep overrides can't be used without `--queue`"
-        )
-
     if not queue:
         return repo.experiments.reproduce_one(
             targets=targets, params=path_overrides, tmp_dir=tmp_dir, **kwargs
         )
 
     if hydra_sweep:
+        if kwargs.get("name"):
+            raise InvalidArgumentError(
+                "Sweep overrides can't be used alongside `--name`"
+            )
         from dvc.utils.hydra import get_hydra_sweeps
 
         sweeps = get_hydra_sweeps(path_overrides)

dvc/repo/experiments/show.py

@@ -3,16 +3,32 @@ from collections import OrderedDict, defaultdict
 from datetime import datetime
 from enum import Enum
 from itertools import chain
-from typing import TYPE_CHECKING, Any, Callable, Dict, List, Optional, Union
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Callable,
+    Dict,
+    Iterable,
+    List,
+    Optional,
+    Set,
+    Tuple,
+    Union,
+)
+
+from scmrepo.exceptions import SCMError as InnerScmError
 
 from dvc.repo.metrics.show import _gather_metrics
 from dvc.repo.params.show import _gather_params
-from dvc.scm import iter_revs
+from dvc.scm import SCMError, iter_revs, resolve_rev
 from dvc.utils import error_handler, onerror_collect, relpath
 
 from .refs import ExpRefInfo
 
 if TYPE_CHECKING:
+    from scmrepo.git import Git
+    from scmrepo.git.objects import GitCommit
+
     from dvc.repo import Repo
 
 logger = logging.getLogger(__name__)
@@ -25,34 +41,49 @@ class ExpStatus(Enum):
     Failed = 3
 
 
+def _is_scm_error(collected_exp: Dict[str, Any]) -> bool:
+    if "error" in collected_exp and (
+        isinstance(collected_exp["error"], SCMError)
+        or isinstance(collected_exp["error"], InnerScmError)
+    ):
+        return True
+    return False
+
+
+def _show_onerror_collect(result: Dict, exception: Exception, *args, **kwargs):
+    onerror_collect(result, exception, *args, **kwargs)
+    result["data"] = {}
+
+
 @error_handler
-def _collect_experiment_commit(
+def collect_experiment_commit(
     repo: "Repo",
     exp_rev: str,
     status: ExpStatus = ExpStatus.Success,
     param_deps=False,
-    running=None,
+    running: Optional[Dict[str, Any]] = None,
     onerror: Optional[Callable] = None,
-):
+) -> Dict[str, Any]:
     from dvc.dependency import ParamsDependency, RepoDependency
 
-    res: Dict[str, Optional[Any]] = defaultdict(dict)
+    result: Dict[str, Any] = defaultdict(dict)
+    running = running or {}
     for rev in repo.brancher(revs=[exp_rev]):
         if rev == "workspace":
             if exp_rev != "workspace":
                 continue
-            res["timestamp"] = None
+            result["timestamp"] = None
         else:
             commit = repo.scm.resolve_commit(rev)
-            res["timestamp"] = datetime.fromtimestamp(commit.commit_time)
+            result["timestamp"] = datetime.fromtimestamp(commit.commit_time)
 
         params = _gather_params(
             repo, rev=rev, targets=None, deps=param_deps, onerror=onerror
         )
         if params:
-            res["params"] = params
+            result["params"] = params
 
-        res["deps"] = {
+        result["deps"] = {
             relpath(dep.fs_path, repo.root_dir): {
                 "hash": dep.hash_info.value,
                 "size": dep.meta.size,
@@ -61,7 +92,7 @@ def _collect_experiment_commit(
             for dep in repo.index.deps
             if not isinstance(dep, (ParamsDependency, RepoDependency))
         }
-        res["outs"] = {
+        result["outs"] = {
             relpath(out.fs_path, repo.root_dir): {
                 "hash": out.hash_info.value,
                 "size": out.meta.size,
@@ -73,14 +104,14 @@ def _collect_experiment_commit(
             if not (out.is_metric or out.is_plot)
         }
 
-        res["status"] = status.name
+        result["status"] = status.name
         if status == ExpStatus.Running:
-            res["executor"] = running.get(exp_rev, {}).get("location", None)
+            result["executor"] = running.get(exp_rev, {}).get("location", None)
         else:
-            res["executor"] = None
+            result["executor"] = None
 
         if status == ExpStatus.Failed:
-            res["error"] = {
+            result["error"] = {
                 "msg": "Experiment run failed.",
                 "type": "",
             }
@@ -89,96 +120,157 @@ def _collect_experiment_commit(
             vals = _gather_metrics(
                 repo, targets=None, rev=rev, recursive=False, onerror=onerror
             )
-            res["metrics"] = vals
+            result["metrics"] = vals
 
-    return res
+    return result
 
 
-def _collect_experiment_branch(
-    res,
-    repo,
-    branch,
-    baseline,
-    onerror: Optional[Callable] = None,
-    running=None,
+def _collect_complete_experiment(
+    repo: "Repo",
+    baseline: str,
+    exp_rev: str,
+    running: Dict[str, Any],
+    revs: List[str],
     **kwargs,
-):
-    from dvc.scm import resolve_rev
+) -> Dict[str, Dict[str, Any]]:
+    results: "OrderedDict[str, Dict[str, Any]]" = OrderedDict()
+
+    checkpoint: bool = True if len(revs) > 1 else False
+    prev = ""
 
-    exp_rev = resolve_rev(repo.scm, branch)
-    prev = None
-    revs = list(repo.scm.branch_revs(exp_rev, baseline))
     for rev in revs:
         status = ExpStatus.Running if rev in running else ExpStatus.Success
-        collected_exp = _collect_experiment_commit(
+        collected_exp = collect_experiment_commit(
             repo,
             rev,
-            onerror=onerror,
             status=status,
             running=running,
             **kwargs,
         )
-        if len(revs) > 1:
+        if _is_scm_error(collected_exp):
+            return {}
+        if checkpoint:
             exp = {"checkpoint_tip": exp_rev}
             if prev:
-                res[prev]["data"][  # type: ignore[unreachable]
+                results[prev]["data"][  # type: ignore[unreachable]
                     "checkpoint_parent"
                 ] = rev
-            if rev in res:
-                res[rev]["data"].update(exp)
-                res.move_to_end(rev)
+            if rev in results:
+                results[rev]["data"].update(exp)
+                results.move_to_end(rev)
             else:
                 exp.update(collected_exp["data"])
         else:
             exp = collected_exp["data"]
-        if rev not in res:
-            res[rev] = {"data": exp}
+        if rev not in results:
+            results[rev] = {"data": exp}
         prev = rev
-    if len(revs) > 1:
-        res[prev]["data"]["checkpoint_parent"] = baseline
-    return res
+    if checkpoint and prev:
+        results[prev]["data"]["checkpoint_parent"] = baseline
+    return results
 
 
-def get_names(repo: "Repo", result: Dict[str, Dict[str, Any]]):
+def _collect_branch(
+    repo: "Repo",
+    baseline: str,
+    running: Dict[str, Any],
+    **kwargs,
+) -> Dict[str, Dict[str, Any]]:
+    results: Dict[str, Dict[str, Any]] = OrderedDict()
+    status = ExpStatus.Running if baseline in running else ExpStatus.Success
+    results["baseline"] = collect_experiment_commit(
+        repo,
+        baseline,
+        status=status,
+        running=running,
+        **kwargs,
+    )
+    if baseline == "workspace" or _is_scm_error(results["baseline"]):
+        return results
+
+    ref_info = ExpRefInfo(baseline_sha=baseline)
+    commits: List[Tuple[str, "GitCommit", str, List[str]]] = []
+
+    for ref in repo.scm.iter_refs(base=str(ref_info)):
+        try:
+            commit = repo.scm.resolve_commit(ref)
+            exp_rev = resolve_rev(repo.scm, ref)
+            revs = list(repo.scm.branch_revs(exp_rev, baseline))
+        except (SCMError, InnerScmError):
+            continue
+        commits.append((ref, commit, exp_rev, revs))
+
+    for exp_ref, _, exp_rev, revs in sorted(
+        commits, key=lambda x: x[1].commit_time, reverse=True
+    ):
+        ref_info = ExpRefInfo.from_ref(exp_ref)
+        assert ref_info.baseline_sha == baseline
+        collected_exp = _collect_complete_experiment(
+            repo,
+            baseline=baseline,
+            exp_rev=exp_rev,
+            running=running,
+            revs=revs,
+            **kwargs,
+        )
+        if _is_scm_error(collected_exp):
+            continue
+        results.update(collected_exp)
+    return results
+
+
+def get_branch_names(
+    scm: "Git", baseline_set: Iterable[str]
+) -> Dict[str, Optional[str]]:
+    names: Dict[str, Optional[str]] = {}
+    for base in [
+        f"refs/exps/{baseline[:2]}/{baseline[2:]}/"
+        for baseline in baseline_set
+    ] + ["refs/heads/", "refs/tags/"]:
+        for ref in scm.iter_refs(base=base):
+            if ref:
+                try:
+                    rev = scm.get_ref(ref)
+                    names[rev] = ref[len(base) :]
+                except KeyError:
+                    logger.debug("unreosolved ref %s", ref)
+    logger.debug("found refs for revs: %s", names)
+    return names
+
+
+def update_names(
+    repo: "Repo",
+    branch_names: Dict[str, Optional[str]],
+    result: Dict[str, Dict[str, Any]],
+):
 
     rev_set = set()
-    baseline_set = set()
     for baseline in result:
         for rev in result[baseline]:
             if rev == "baseline":
                 rev = baseline
-                baseline_set.add(rev)
             if rev != "workspace":
                 rev_set.add(rev)
 
-    names: Dict[str, Optional[str]] = {}
-    for base in ("refs/tags/", "refs/heads/"):
-        if rev_set:
-            names.update(
-                (rev, ref[len(base) :])
-                for rev, ref in repo.scm.describe(
-                    baseline_set, base=base
-                ).items()
-                if ref is not None
-            )
-            rev_set.difference_update(names.keys())
+    if rev_set:
+        rev_set.difference_update(branch_names.keys())
 
     exact_name = repo.experiments.get_exact_name(rev_set)
 
     for baseline, baseline_results in result.items():
+        name_set: Set[str] = set()
         for rev, rev_result in baseline_results.items():
             name: Optional[str] = None
             if rev == "baseline":
                 rev = baseline
                 if rev == "workspace":
                     continue
-                name = names.get(rev, None)
-            name = name or exact_name[rev]
-            if name:
+            name = branch_names.get(rev, None) or exact_name[rev]
+            if name and name not in name_set:
+                name_set.add(name)
                 rev_result["data"]["name"] = name
 
 
-# flake8: noqa: C901
 def _collect_active_experiment(
     repo: "Repo",
     found_revs: Dict[str, List[str]],
@@ -194,13 +286,16 @@ def _collect_active_experiment(
         if entry.baseline_rev in found_revs and (
             stash_rev not in running or not running[stash_rev].get("last")
         ):
-            result[entry.baseline_rev][stash_rev] = _collect_experiment_commit(
+            collected_exp = collect_experiment_commit(
                 repo,
                 stash_rev,
                 status=ExpStatus.Running,
                 running=running,
                 **kwargs,
             )
+            if _is_scm_error(collected_exp):
+                continue
+            result[entry.baseline_rev][stash_rev] = collected_exp
     return result
 
 
@@ -214,13 +309,16 @@ def _collect_queued_experiment(
     for entry in repo.experiments.celery_queue.iter_queued():
         stash_rev = entry.stash_rev
         if entry.baseline_rev in found_revs:
-            result[entry.baseline_rev][stash_rev] = _collect_experiment_commit(
+            collected_exp = collect_experiment_commit(
                 repo,
                 stash_rev,
                 status=ExpStatus.Queued,
                 running=running,
                 **kwargs,
             )
+            if _is_scm_error(collected_exp):
+                continue
+            result[entry.baseline_rev][stash_rev] = collected_exp
     return result
 
 
@@ -235,14 +333,16 @@ def _collect_failed_experiment(
         entry = queue_done_result.entry
         stash_rev = entry.stash_rev
         if entry.baseline_rev in found_revs:
-            experiment = _collect_experiment_commit(
+            collected_exp = collect_experiment_commit(
                 repo,
                 stash_rev,
                 status=ExpStatus.Failed,
                 running=running,
                 **kwargs,
             )
-            result[entry.baseline_rev][stash_rev] = experiment
+            if _is_scm_error(collected_exp):
+                continue
+            result[entry.baseline_rev][stash_rev] = collected_exp
     return result
 
 
@@ -254,6 +354,40 @@ def update_new(
             to_dict[baseline][rev] = to_dict[baseline].get(rev, experiment)
 
 
+def move_properties_to_head(result: Dict[str, Dict[str, Dict[str, Any]]]):
+    for _, baseline_results in result.items():
+        checkpoint: bool = False
+        head: Dict[str, Any] = {}
+        for rev, rev_data in baseline_results.items():
+            if (
+                "data" not in rev_data
+                or rev_data["data"].get("checkpoint_tip", None) is None
+            ):
+                checkpoint = False
+                head = {}
+                continue
+
+            rev_result: Dict[str, Any] = rev_data["data"]
+            if (
+                checkpoint is True
+                and rev_result["checkpoint_tip"] == head["checkpoint_tip"]
+            ):
+                if "name" in rev_result and "name" not in head:
+                    head["name"] = rev_result["name"]
+                    del rev_result["name"]
+                if rev_result["executor"]:
+                    if not head["executor"]:
+                        head["executor"] = rev_result["executor"]
+                    rev_result["executor"] = None
+                if rev_result["status"] == ExpStatus.Running.name:
+                    head["status"] = ExpStatus.Running.name
+                    rev_result["status"] = ExpStatus.Success.name
+            else:
+                if rev_result["checkpoint_tip"] == rev:
+                    head = rev_result
+                    checkpoint = True
+
+
 def show(
     repo: "Repo",
     all_branches=False,
@@ -272,8 +406,7 @@ def show(
     if repo.scm.no_commits:
         return {}
 
-    if onerror is None:
-        onerror = onerror_collect
+    onerror = onerror or _show_onerror_collect
 
     res: Dict[str, Dict] = defaultdict(OrderedDict)
 
@@ -286,6 +419,7 @@ def show(
     found_revs.update(
         iter_revs(repo.scm, revs, num, all_branches, all_tags, all_commits)
     )
+    branch_names = get_branch_names(repo.scm, found_revs)
 
     running: Dict[str, Dict] = repo.experiments.get_running_exps(
         fetch_refs=fetch_running
@@ -316,7 +450,6 @@ def show(
             repo,
             found_revs,
             running,
-            sha_only=sha_only,
             param_deps=param_deps,
             onerror=onerror,
         )
@@ -324,49 +457,24 @@ def show(
         else {}
     )
 
-    for rev in found_revs:
-        status = ExpStatus.Running if rev in running else ExpStatus.Success
-        res[rev]["baseline"] = _collect_experiment_commit(
+    for baseline in found_revs:
+        res[baseline] = _collect_branch(
             repo,
-            rev,
-            status=status,
-            param_deps=param_deps,
+            baseline,
             running=running,
+            param_deps=param_deps,
             onerror=onerror,
         )
 
-        if rev == "workspace":
-            continue
-
-        ref_info = ExpRefInfo(baseline_sha=rev)
-        commits = [
-            (ref, repo.scm.resolve_commit(ref))
-            for ref in repo.scm.iter_refs(base=str(ref_info))
-        ]
-        for exp_ref, _ in sorted(
-            commits, key=lambda x: x[1].commit_time, reverse=True
-        ):
-            ref_info = ExpRefInfo.from_ref(exp_ref)
-            assert ref_info.baseline_sha == rev
-            _collect_experiment_branch(
-                res[rev],
-                repo,
-                exp_ref,
-                rev,
-                param_deps=param_deps,
-                running=running,
-                onerror=onerror,
-            )
-
-    if not hide_failed:
-        update_new(res, failed_experiments)
+    update_new(res, failed_experiments)
 
     update_new(res, active_experiment)
 
-    if not hide_queued:
-        update_new(res, queued_experiment)
+    update_new(res, queued_experiment)
 
     if not sha_only:
-        get_names(repo, res)
+        update_names(repo, branch_names, res)
+
+    move_properties_to_head(res)
 
     return res

dvc/repo/fetch.py

@@ -17,20 +17,6 @@ if TYPE_CHECKING:
 logger = logging.getLogger(__name__)
 
 
-def _fetch_worktree(repo, remote):
-    from dvc_data.index import save
-
-    index = repo.index.data["repo"]
-    for key, entry in index.iteritems():
-        entry.fs = remote.fs
-        entry.path = remote.fs.path.join(
-            remote.path,
-            *key,
-        )
-    save(index)
-    return len(index)
-
-
 @locked
 def fetch(
     self,
@@ -59,6 +45,7 @@ def fetch(
             remote is configured
     """
     from dvc.repo.imports import save_imports
+    from dvc.repo.worktree import fetch_worktree
     from dvc_data.hashfile.transfer import TransferResult
 
     if isinstance(targets, str):
@@ -67,7 +54,7 @@ def fetch(
     with suppress(NoRemoteError):
         _remote = self.cloud.get_remote(name=remote)
         if _remote.worktree:
-            return _fetch_worktree(self, _remote)
+            return fetch_worktree(self, _remote)
 
     failed_count = 0
 

dvc/repo/imp_url.py

@@ -97,6 +97,9 @@ def imp_url(
     else:
         stage.run(jobs=jobs, no_download=no_download)
 
+    if not no_exec and stage.deps[0].fs.version_aware:
+        stage.outs[0].can_push = False
+
     stage.frozen = frozen
 
     dvcfile.dump(stage)

dvc/repo/imports.py

@@ -44,7 +44,7 @@ def unfetched_view(
 
         return True
 
-    unfetched = index.targets_view(targets, filter_fn=need_fetch, **kwargs)
+    unfetched = index.targets_view(targets, stage_filter=need_fetch, **kwargs)
     return unfetched, changed_deps
 
 
@@ -53,7 +53,7 @@ def partial_view(
 ) -> "IndexView":
     return index.targets_view(
         targets,
-        filter_fn=lambda s: s.is_partial_import,
+        stage_filter=lambda s: s.is_partial_import,
         **kwargs,
     )
 

dvc/repo/index.py

@@ -7,8 +7,10 @@ from typing import (
     Iterable,
     Iterator,
     List,
+    NamedTuple,
     Optional,
     Set,
+    Tuple,
 )
 
 from funcy import cached_property, nullcontext
@@ -150,25 +152,35 @@ class Index:
 
     def targets_view(
         self,
-        targets: "TargetType",
-        filter_fn: Optional[Callable[["Stage"], bool]] = None,
+        targets: Optional["TargetType"],
+        stage_filter: Optional[Callable[["Stage"], bool]] = None,
+        outs_filter: Optional[Callable[["Output"], bool]] = None,
         **kwargs: Any,
     ) -> "IndexView":
         """Return read-only view of index for the specified targets.
 
         Args:
             targets: Targets to collect
-            filter_fn: Optional stage filter to be applied after collecting
+            stage_filter: Optional stage filter to be applied after collecting
+                targets.
+            outs_filter: Optional output filter to be applied after collecting
                 targets.
 
         Additional kwargs will be passed into the stage collector.
+
+        Note:
+            If both stage_filter and outs_filter are provided, stage_filter
+            will be applied first, and the resulting view will only contain
+            outputs from stages that matched stage_filter. Outputs from stages
+            that did not match will be excluded from the view (whether or not
+            the output would have matched outs_filter).
         """
         stage_infos = [
             stage_info
             for stage_info in self._collect_targets(targets, **kwargs)
-            if not filter_fn or filter_fn(stage_info.stage)
+            if not stage_filter or stage_filter(stage_info.stage)
         ]
-        return IndexView(self, stage_infos)
+        return IndexView(self, stage_infos, outs_filter=outs_filter)
 
     @property
     def outs(self) -> Iterator["Output"]:
@@ -242,15 +254,8 @@ class Index:
             workspace, key = out.index_key
             data_index = by_workspace[workspace]
 
-            if out.files:
-                out.obj = out.get_obj()
-
             entry = out.get_entry()
             entry.key = key
-            if out.stage.is_import and not out.stage.is_repo_import:
-                entry.fs = out.stage.deps[0].fs
-                entry.path = out.stage.deps[0].fs_path
-                entry.meta = out.stage.deps[0].meta
             data_index.add(entry)
 
         return dict(by_workspace)
@@ -263,6 +268,7 @@ class Index:
         force: bool = False,
         recursive: bool = False,
         jobs: int = None,
+        push: bool = False,
     ) -> "ObjectContainer":
         from collections import defaultdict
 
@@ -276,6 +282,7 @@ class Index:
                 force=force,
                 jobs=jobs,
                 filter_info=filter_info,
+                push=push,
             ).items():
                 used[odb].update(objs)
         return used
@@ -345,17 +352,26 @@ class Index:
         return dict_md5(self.dumpd())
 
 
+class _DataPrefixes(NamedTuple):
+    explicit: Set["DataIndexKey"]
+    recursive: Set["DataIndexKey"]
+
+
 class IndexView:
     """Read-only view of Index.data using filtered stages."""
 
     def __init__(  # pylint: disable=redefined-outer-name
-        self, index: Index, stage_infos: Iterable["StageInfo"]
+        self,
+        index: Index,
+        stage_infos: Iterable["StageInfo"],
+        outs_filter: Optional[Callable[["Output"], bool]],
     ):
         self._index = index
         self._stage_infos = stage_infos
         # NOTE: stage_infos might have the same stage multiple times but with
         # different filter_info
         self._stages = list({stage for stage, _ in stage_infos})
+        self._outs_filter = outs_filter
 
     def __len__(self) -> int:
         return len(self._stages)
@@ -384,30 +400,32 @@ class IndexView:
             yield from stage.deps
 
     @property
-    def outs(self) -> Iterator["Output"]:
-        outs = set()
+    def _filtered_outs(self) -> Iterator[Tuple["Output", Optional[str]]]:
         for stage, filter_info in self._stage_infos:
             for out in stage.filter_outs(filter_info):
-                outs.add(out)
-        yield from outs
+                if not self._outs_filter or self._outs_filter(out):
+                    yield out, filter_info
+
+    @property
+    def outs(self) -> Iterator["Output"]:
+        yield from {out for (out, _) in self._filtered_outs}
 
     @cached_property
-    def _data_prefixes(self) -> Dict[str, Set["DataIndexKey"]]:
+    def _data_prefixes(self) -> Dict[str, "_DataPrefixes"]:
         from collections import defaultdict
 
-        prefixes: Dict[str, Set["DataIndexKey"]] = defaultdict(set)
-        for stage, filter_info in self._stage_infos:
-            for out in stage.filter_outs(filter_info):
-                workspace, key = out.index_key
-                if filter_info and out.fs.path.isin(filter_info, out.fs_path):
-                    key = (
-                        *key,
-                        out.fs.path.relparts(filter_info, out.fs_path),
-                    )
-                prefixes[workspace].add(key)
-                prefixes[workspace].update(
-                    key[:i] for i in range(len(key), 0, -1)
-                )
+        prefixes: Dict[str, "_DataPrefixes"] = defaultdict(
+            lambda: _DataPrefixes(set(), set())
+        )
+        for out, filter_info in self._filtered_outs:
+            workspace, key = out.index_key
+            if filter_info and out.fs.path.isin(filter_info, out.fs_path):
+                key = key + out.fs.path.relparts(filter_info, out.fs_path)
+            if out.meta.isdir:
+                prefixes[workspace].recursive.add(key)
+            prefixes[workspace].explicit.update(
+                key[:i] for i in range(len(key), 0, -1)
+            )
         return prefixes
 
     @cached_property
@@ -418,14 +436,19 @@ class IndexView:
 
         def key_filter(workspace: str, key: "DataIndexKey"):
             try:
-                return key in self._data_prefixes[workspace]
+                prefixes = self._data_prefixes[workspace]
+                return key in prefixes.explicit or any(
+                    key[: len(prefix)] == prefix
+                    for prefix in prefixes.recursive
+                )
             except KeyError:
                 return False
 
-        return {
-            workspace: view(index, partial(key_filter, workspace))
-            for workspace, index in self._index.data.items()
-        }
+        data = {}
+        for workspace, data_index in self._index.data.items():
+            data_index.load()
+            data[workspace] = view(data_index, partial(key_filter, workspace))
+        return data
 
 
 if __name__ == "__main__":

dvc/repo/live.py

@@ -1,19 +0,0 @@
-import logging
-from typing import TYPE_CHECKING, Optional
-
-logger = logging.getLogger(__name__)
-
-if TYPE_CHECKING:
-    from dvc.output import Output
-
-
-def summary_fs_path(out: "Output") -> Optional[str]:
-    from dvc.output import Output
-
-    assert out.live
-    has_summary = True
-    if isinstance(out.live, dict):
-        has_summary = out.live.get(Output.PARAM_LIVE_SUMMARY, True)
-    if has_summary:
-        return out.fs.path.with_suffix(out.fs_path, ".json")
-    return None

dvc/repo/metrics/show.py

@@ -8,7 +8,6 @@ from dvc.fs.dvc import DVCFileSystem
 from dvc.output import Output
 from dvc.repo import locked
 from dvc.repo.collect import StrPaths, collect
-from dvc.repo.live import summary_fs_path
 from dvc.scm import NoSCMError
 from dvc.utils import error_handler, errored_revisions, onerror_collect
 from dvc.utils.collections import ensure_list
@@ -18,7 +17,7 @@ logger = logging.getLogger(__name__)
 
 
 def _is_metric(out: Output) -> bool:
-    return bool(out.metric) or bool(out.live)
+    return bool(out.metric)
 
 
 def _to_fs_paths(metrics: List[Output]) -> StrPaths:
@@ -26,10 +25,6 @@ def _to_fs_paths(metrics: List[Output]) -> StrPaths:
     for out in metrics:
         if out.metric:
             result.append(out.repo.dvcfs.from_os_path(out.fs_path))
-        elif out.live:
-            fs_path = summary_fs_path(out)
-            if fs_path:
-                result.append(out.repo.dvcfs.from_os_path(fs_path))
     return result
 
 

dvc/repo/plots/__init__.py

@@ -14,11 +14,12 @@ from typing import (
     List,
     Optional,
     Set,
+    Union,
 )
 
 import dpath.options
 import dpath.util
-from funcy import cached_property, first, project
+from funcy import cached_property, distinct, first, project
 
 from dvc.exceptions import DvcException
 from dvc.utils import error_handler, errored_revisions, onerror_collect
@@ -265,7 +266,7 @@ class Plots:
 
 
 def _is_plot(out: "Output") -> bool:
-    return bool(out.plot) or bool(out.live)
+    return bool(out.plot)
 
 
 def _resolve_data_sources(plots_data: Dict):
@@ -313,16 +314,18 @@ def _get_data_targets(definitions: Dict):
 
 
 def infer_data_sources(plot_id, config=None):
-    def _deduplicate(lst: List):
-        return list({elem: None for elem in lst}.keys())
-
     y = config.get("y", None)
+
     if isinstance(y, dict):
         sources = list(y.keys())
     else:
         sources = [plot_id]
 
-    return _deduplicate(source for source in sources)
+    x = config.get("x", None)
+    if isinstance(x, dict):
+        sources.append(first(x.keys()))
+
+    return distinct(source for source in sources)
 
 
 def _matches(targets, config_file, plot_id):
@@ -444,16 +447,22 @@ def _collect_pipeline_files(repo, targets: List[str], props, onerror=None):
         if isinstance(dvcfile, PipelineFile):
             dvcfile_path = _relpath(repo.dvcfs, dvcfile.path)
             dvcfile_defs = dvcfile.load().get("plots", {})
+            dvcfile_defs_dict: Dict[str, Union[Dict, None]] = {}
             if isinstance(dvcfile_defs, list):
-                dvcfile_defs = {
-                    k: v for elem in dvcfile_defs for k, v in elem.items()
-                }
+                for elem in dvcfile_defs:
+                    if isinstance(elem, str):
+                        dvcfile_defs_dict[elem] = None
+                    else:
+                        k, v = list(elem.items())[0]
+                        dvcfile_defs_dict[k] = v
+            else:
+                dvcfile_defs_dict = dvcfile_defs
             resolved = _resolve_definitions(
                 repo.dvcfs,
                 targets,
                 props,
                 dvcfile_path,
-                dvcfile_defs,
+                dvcfile_defs_dict,
                 onerror=onerror,
             )
             dpath.util.merge(
@@ -546,7 +555,7 @@ def parse(fs, path, props=None, **kwargs):
         return _load_sv(path=path, fs=fs, delimiter="\t", header=header)
     if extension in LOADERS or extension in (".yml", ".yaml"):
         return LOADERS[extension](path=path, fs=fs)
-    if extension in (".jpeg", ".jpg", ".gif", ".png"):
+    if extension in (".jpeg", ".jpg", ".gif", ".png", ".svg"):
         with fs.open(path, "rb") as fd:
             return fd.read()
     raise PlotMetricTypeError(path)
@@ -555,7 +564,7 @@ def parse(fs, path, props=None, **kwargs):
 def _plot_props(out: "Output") -> Dict:
     from dvc.schema import PLOT_PROPS
 
-    if not (out.plot or out.live):
+    if not (out.plot):
         raise NotAPlotError(out)
     if isinstance(out.plot, list):
         raise DvcException("Multiple plots per data file not supported.")

dvc/repo/push.py

@@ -9,48 +9,6 @@ if TYPE_CHECKING:
     from dvc_objects.db.base import ObjectDB
 
 
-def _push_worktree(repo, remote):
-    from dvc_data.index import checkout
-    from dvc_data.index.save import build_tree
-
-    index = repo.index.data["repo"]
-    checkout(index, remote.path, remote.fs)
-
-    for stage in repo.index.stages:
-        for out in stage.outs:
-            if not out.use_cache:
-                continue
-
-            if not out.is_in_repo:
-                continue
-
-            workspace, key = out.index_key
-            index = repo.index.data[workspace]
-            entry = index[key]
-            if out.isdir():
-                old_tree = out.get_obj()
-                entry.hash_info = old_tree.hash_info
-                entry.meta = out.meta
-                for subkey, entry in index.iteritems(key):
-                    if entry.meta.isdir:
-                        continue
-                    fs_path = repo.fs.path.join(repo.root_dir, *subkey)
-                    _, hash_info = old_tree.get(
-                        repo.fs.path.relparts(fs_path, out.fs_path)
-                    )
-                    entry.hash_info = hash_info
-                tree_meta, new_tree = build_tree(index, key)
-                out.obj = new_tree
-                out.hash_info = new_tree.hash_info
-                out.meta = tree_meta
-            else:
-                out.hash_info = entry.hash_info
-                out.meta = entry.meta
-        stage.dvcfile.dump(stage, with_files=True, update_pipeline=False)
-
-    return len(index)
-
-
 @locked
 def push(
     self,
@@ -68,9 +26,11 @@ def push(
     odb: Optional["ObjectDB"] = None,
     include_imports=False,
 ):
+    from dvc.repo.worktree import push_worktree
+
     _remote = self.cloud.get_remote(name=remote)
     if _remote.worktree:
-        return _push_worktree(self, _remote)
+        return push_worktree(self, _remote)
 
     used_run_cache = (
         self.stage_cache.push(remote, odb=odb) if run_cache else []
@@ -93,6 +53,7 @@ def push(
         recursive=recursive,
         used_run_cache=used_run_cache,
         revs=revs,
+        push=True,
     )
 
     pushed = len(used_run_cache)

dvc/repo/reproduce.py

@@ -72,12 +72,6 @@ def _get_stage_files(stage: "Stage") -> typing.Iterator[str]:
     for out in stage.outs:
         if not out.use_scm_ignore and out.is_in_repo:
             yield out.fs_path
-        if out.live:
-            from dvc.repo.live import summary_fs_path
-
-            summary = summary_fs_path(out)
-            if summary:
-                yield summary
 
 
 def _track_stage(stage: "Stage") -> None:

dvc/repo/status.py

@@ -89,6 +89,7 @@ def _cloud_status(
         remote=remote,
         jobs=jobs,
         recursive=recursive,
+        push=True,
     )
 
     ret = {}

dvc/repo/worktree.py

@@ -0,0 +1,121 @@
+from typing import TYPE_CHECKING, Optional
+
+from dvc.fs.callbacks import Callback
+
+if TYPE_CHECKING:
+    from dvc.cloud import Remote
+    from dvc.index import Index, IndexView
+    from dvc.output import Output
+    from dvc.repo import Repo
+    from dvc.stage import Stage
+    from dvc.types import TargetType
+
+
+def worktree_view(
+    index: "Index",
+    targets: Optional["TargetType"] = None,
+    push: bool = False,
+    **kwargs,
+) -> "IndexView":
+    """Return view of data that can be stored in worktree remotes.
+
+    Args:
+        targets: Optional targets.
+        push: Whether the view should be restricted to pushable data only.
+
+    Additional kwargs will be passed into target collection.
+    """
+
+    def stage_filter(stage: "Stage") -> bool:
+        if push and stage.is_repo_import:
+            return False
+        return True
+
+    def outs_filter(out: "Output") -> bool:
+        if (
+            not out.is_in_repo
+            or not out.use_cache
+            or (push and not out.can_push)
+        ):
+            return False
+        return True
+
+    return index.targets_view(
+        targets,
+        stage_filter=stage_filter,
+        outs_filter=outs_filter,
+        **kwargs,
+    )
+
+
+def fetch_worktree(repo: "Repo", remote: "Remote") -> int:
+    from dvc_data.index import save
+
+    view = worktree_view(repo.index)
+    index = view.data["repo"]
+    for key, entry in index.iteritems():
+        entry.fs = remote.fs
+        entry.path = remote.fs.path.join(
+            remote.path,
+            *key,
+        )
+    total = len(index)
+    with Callback.as_tqdm_callback(
+        unit="file", desc="Fetch", disable=total == 0
+    ) as cb:
+        cb.set_size(total)
+        return save(index, callback=cb)
+
+
+def push_worktree(repo: "Repo", remote: "Remote") -> int:
+    from dvc_data.index import checkout
+    from dvc_data.index.save import build_tree
+
+    view = worktree_view(repo.index, push=True)
+    index = view.data["repo"]
+    total = len(index)
+    with Callback.as_tqdm_callback(
+        unit="file", desc="Push", disable=total == 0
+    ) as cb:
+        cb.set_size(total)
+        pushed = checkout(
+            index,
+            remote.path,
+            remote.fs,
+            latest_only=False,
+            callback=cb,
+        )
+
+    for stage in view.stages:
+        for out in stage.outs:
+            if not out.use_cache:
+                continue
+
+            if not out.is_in_repo:
+                continue
+
+            workspace, key = out.index_key
+            index = repo.index.data[workspace]
+            entry = index[key]
+            if out.isdir():
+                old_tree = out.get_obj()
+                entry.hash_info = old_tree.hash_info
+                entry.meta = out.meta
+                for subkey, entry in index.iteritems(key):
+                    if entry.meta.isdir:
+                        continue
+                    fs_path = repo.fs.path.join(repo.root_dir, *subkey)
+                    _, hash_info = old_tree.get(
+                        repo.fs.path.relparts(fs_path, out.fs_path)
+                    )
+                    entry.hash_info = hash_info
+                tree_meta, new_tree = build_tree(index, key)
+                out.obj = new_tree
+                out.hash_info = new_tree.hash_info
+                out.meta = tree_meta
+            else:
+                out.hash_info = entry.hash_info
+                out.meta = entry.meta
+        stage.dvcfile.dump(stage, with_files=True, update_pipeline=False)
+
+    return pushed

dvc/schema.py

@@ -51,6 +51,7 @@ OUT_PSTAGE_DETAILED_SCHEMA = {
         Output.PARAM_PERSIST: bool,
         Output.PARAM_CHECKPOINT: bool,
         Output.PARAM_REMOTE: str,
+        Output.PARAM_PUSH: bool,
     }
 }
 
@@ -67,13 +68,6 @@ PLOT_PROPS = {
 PLOT_PROPS_SCHEMA = {**OUT_PSTAGE_DETAILED_SCHEMA[str], **PLOT_PROPS}
 PLOT_PSTAGE_SCHEMA = {str: Any(PLOT_PROPS_SCHEMA, [PLOT_PROPS_SCHEMA])}
 
-LIVE_PROPS = {
-    Output.PARAM_LIVE_SUMMARY: bool,
-    Output.PARAM_LIVE_HTML: bool,
-}
-LIVE_PROPS_SCHEMA = {**PLOT_PROPS_SCHEMA, **LIVE_PROPS}
-LIVE_PSTAGE_SCHEMA = {str: LIVE_PROPS_SCHEMA}
-
 PARAM_PSTAGE_NON_DEFAULT_SCHEMA = {str: [str]}
 
 VARS_SCHEMA = [str, dict]
@@ -93,7 +87,6 @@ STAGE_DEFINITION = {
         Any(str, OUT_PSTAGE_DETAILED_SCHEMA)
     ],
     Optional(StageParams.PARAM_PLOTS): [Any(str, PLOT_PSTAGE_SCHEMA)],
-    Optional(StageParams.PARAM_LIVE): Any(str, LIVE_PSTAGE_SCHEMA),
 }
 
 
@@ -111,7 +104,7 @@ def either_or(primary, fallback, fallback_includes=None):
 
 
 PLOT_DEFINITION = {
-    Output.PARAM_PLOT_X: str,
+    Output.PARAM_PLOT_X: Any(str, {str: str}),
     Output.PARAM_PLOT_Y: Any(str, [str], {str: Any(str, [str])}),
     Output.PARAM_PLOT_X_LABEL: str,
     Output.PARAM_PLOT_Y_LABEL: str,
@@ -127,7 +120,7 @@ SINGLE_PIPELINE_STAGE_SCHEMA = {
     str: either_or(STAGE_DEFINITION, FOREACH_IN, [FOREACH_KWD, DO_KWD])
 }
 MULTI_STAGE_SCHEMA = {
-    PLOTS: Any(SINGLE_PLOT_SCHEMA, [SINGLE_PLOT_SCHEMA]),
+    PLOTS: Any(SINGLE_PLOT_SCHEMA, [Any(str, SINGLE_PLOT_SCHEMA)]),
     STAGES: SINGLE_PIPELINE_STAGE_SCHEMA,
     VARS_KWD: VARS_SCHEMA,
 }

dvc/stage/__init__.py

@@ -113,10 +113,11 @@ def restore_fields(stage):
     stage.meta = old.meta
     stage.desc = old.desc
 
-    old_fields = {out.def_path: (out.annot, out.remote) for out in old.outs}
+    old_outs = {out.def_path: out for out in old.outs}
     for out in stage.outs:
-        if out_fields := old_fields.get(out.def_path, None):
-            out.annot, out.remote = out_fields
+        old_out = old_outs.get(out.def_path, None)
+        if old_out is not None:
+            out.restore_fields(old_out)
 
 
 class Stage(params.StageParams):
@@ -280,22 +281,7 @@ class Stage(params.StageParams):
 
     def _read_env(self, out, checkpoint_func=None) -> Env:
         env: Env = {}
-        if out.live:
-            from dvc.env import DVCLIVE_HTML, DVCLIVE_PATH, DVCLIVE_SUMMARY
-            from dvc.output import Output
-            from dvc.schema import LIVE_PROPS
-
-            env[DVCLIVE_PATH] = relpath(out.fs_path, self.wdir)
-            if isinstance(out.live, dict):
-                config = project(out.live, LIVE_PROPS)
-
-                env[DVCLIVE_SUMMARY] = str(
-                    int(config.get(Output.PARAM_LIVE_SUMMARY, True))
-                )
-                env[DVCLIVE_HTML] = str(
-                    int(config.get(Output.PARAM_LIVE_HTML, True))
-                )
-        elif out.checkpoint and checkpoint_func:
+        if out.checkpoint and checkpoint_func:
             from dvc.env import DVC_CHECKPOINT
 
             env.update({DVC_CHECKPOINT: "1"})
@@ -379,7 +365,7 @@ class Stage(params.StageParams):
     def remove_outs(self, ignore_remove=False, force=False):
         """Used mainly for `dvc remove --outs` and :func:`Stage.reproduce`."""
         for out in self.outs:
-            if (out.persist or out.checkpoint or out.live) and not force:
+            if (out.persist or out.checkpoint) and not force:
                 out.unprotect()
                 continue
 
@@ -477,10 +463,12 @@ class Stage(params.StageParams):
         logger.debug("Computed %s md5: '%s'", self, m)
         return m
 
-    def save(self, allow_missing=False):
+    def save(self, allow_missing: bool = False, merge_versioned: bool = False):
         self.save_deps(allow_missing=allow_missing)
 
-        self.save_outs(allow_missing=allow_missing)
+        self.save_outs(
+            allow_missing=allow_missing, merge_versioned=merge_versioned
+        )
         self.md5 = self.compute_md5()
 
         self.repo.stage_cache.save(self)
@@ -495,15 +483,40 @@ class Stage(params.StageParams):
                 if not allow_missing:
                     raise
 
-    def save_outs(self, allow_missing=False):
+    def save_outs(
+        self, allow_missing: bool = False, merge_versioned: bool = False
+    ):
         from dvc.output import OutputDoesNotExistError
 
+        from .exceptions import StageFileDoesNotExistError, StageNotFound
+
+        if merge_versioned:
+            try:
+                old = self.reload()
+                old_outs = {out.def_path: out for out in old.outs}
+                merge_versioned = any(
+                    (
+                        out.files is not None
+                        or (
+                            out.meta is not None
+                            and out.meta.version_id is not None
+                        )
+                    )
+                    for out in old_outs.values()
+                )
+            except (StageFileDoesNotExistError, StageNotFound):
+                merge_versioned = False
+
         for out in self.outs:
             try:
                 out.save()
             except OutputDoesNotExistError:
                 if not (allow_missing or out.checkpoint):
                     raise
+            if merge_versioned:
+                old_out = old_outs.get(out.def_path)
+                if old_out is not None:
+                    out.merge_version_meta(old_out)
 
     def ignore_outs(self):
         for out in self.outs:

dvc/stage/cache.py

@@ -180,7 +180,7 @@ class StageCache:
         dump_yaml(tmp, cache)
         self.repo.odb.local.move(tmp, path)
 
-    def restore(self, stage, run_cache=True, pull=False):
+    def restore(self, stage, run_cache=True, pull=False, dry=False):
         from .serialize import to_single_stage_lockfile
 
         if not _can_hash(stage):
@@ -195,14 +195,15 @@ class StageCache:
         else:
             if not run_cache:  # backward compatibility
                 raise RunCacheNotFoundError(stage)
-            stage.save_deps()
+            if not dry:
+                stage.save_deps()
             cache = self._load(stage)
             if not cache:
                 raise RunCacheNotFoundError(stage)
 
         cached_stage = self._create_stage(cache, wdir=stage.wdir)
 
-        if pull:
+        if pull and not dry:
             for objs in cached_stage.get_used_objs().values():
                 self.repo.cloud.pull(objs)
 
@@ -213,7 +214,8 @@ class StageCache:
             "Stage '%s' is cached - skipping run, checking out outputs",
             stage.addressing,
         )
-        cached_stage.checkout()
+        if not dry:
+            cached_stage.checkout()
 
     def transfer(self, from_odb, to_odb):
         from dvc.fs import HTTPFileSystem, LocalFileSystem

dvc/stage/loader.py

@@ -97,7 +97,6 @@ class StageLoader(Mapping):
                 stage.PARAM_OUTS,
                 stage.PARAM_METRICS,
                 stage.PARAM_PLOTS,
-                stage.PARAM_LIVE,
             ],
         )
         stage.outs = lcat(

dvc/stage/monitor.py

@@ -20,10 +20,6 @@ class CheckpointKilledError(StageCmdFailedError):
     pass
 
 
-class LiveKilledError(StageCmdFailedError):
-    pass
-
-
 @dataclass
 class MonitorTask:
     stage: "Stage"

dvc/stage/params.py

@@ -12,4 +12,3 @@ class StageParams:
     PARAM_METRICS = "metrics"
     PARAM_PLOTS = "plots"
     PARAM_DESC = "desc"
-    PARAM_LIVE = "live"

dvc/stage/run.py

@@ -139,14 +139,16 @@ def cmd_run(stage, dry=False, checkpoint_func=None, run_env=None):
 def run_stage(
     stage, dry=False, force=False, checkpoint_func=None, run_env=None, **kwargs
 ):
-    if not (dry or force or checkpoint_func):
+    if not (force or checkpoint_func):
         from .cache import RunCacheNotFoundError
 
         try:
-            stage.repo.stage_cache.restore(stage, **kwargs)
-            return
+            stage.repo.stage_cache.restore(stage, dry=dry, **kwargs)
+            if not dry:
+                return
         except RunCacheNotFoundError:
-            stage.save_deps()
+            if not dry:
+                stage.save_deps()
 
     run = cmd_run if dry else unlocked_repo(cmd_run)
     run(stage, dry=dry, checkpoint_func=checkpoint_func, run_env=run_env)

dvc/stage/serialize.py

@@ -29,6 +29,7 @@ PARAM_PERSIST = Output.PARAM_PERSIST
 PARAM_CHECKPOINT = Output.PARAM_CHECKPOINT
 PARAM_DESC = Annotation.PARAM_DESC
 PARAM_REMOTE = Output.PARAM_REMOTE
+PARAM_PUSH = Output.PARAM_PUSH
 
 DEFAULT_PARAMS_FILE = ParamsDependency.DEFAULT_PARAMS_FILE
 
@@ -52,10 +53,10 @@ def _get_flags(out):
         # `out.plot` is in the same order as is in the file when read
         # and, should be dumped as-is without any sorting
         yield from out.plot.items()
-    if out.live and isinstance(out.live, dict):
-        yield from out.live.items()
     if out.remote:
         yield PARAM_REMOTE, out.remote
+    if not out.can_push:
+        yield PARAM_PUSH, False
 
 
 def _serialize_out(out):
@@ -65,19 +66,15 @@ def _serialize_out(out):
 
 @no_type_check
 def _serialize_outs(outputs: List[Output]):
-    outs, metrics, plots, live = [], [], [], None
+    outs, metrics, plots = [], [], []
     for out in sort_by_path(outputs):
         bucket = outs
         if out.plot:
             bucket = plots
         elif out.metric:
             bucket = metrics
-        elif out.live:
-            assert live is None
-            live = _serialize_out(out)
-            continue
         bucket.append(_serialize_out(out))
-    return outs, metrics, plots, live
+    return outs, metrics, plots
 
 
 def _serialize_params_keys(params):
@@ -126,7 +123,7 @@ def to_pipeline_file(stage: "PipelineStage"):
     deps = sorted(d.def_path for d in deps)
     params = _serialize_params_keys(params)
 
-    outs, metrics, plots, live = _serialize_outs(stage.outs)
+    outs, metrics, plots = _serialize_outs(stage.outs)
 
     cmd = stage.cmd
     assert cmd, (
@@ -142,7 +139,6 @@ def to_pipeline_file(stage: "PipelineStage"):
         (stage.PARAM_OUTS, outs),
         (stage.PARAM_METRICS, metrics),
         (stage.PARAM_PLOTS, plots),
-        (stage.PARAM_LIVE, live),
         (stage.PARAM_FROZEN, stage.frozen),
         (stage.PARAM_ALWAYS_CHANGED, stage.always_changed),
         (stage.PARAM_META, stage.meta),

dvc/stage/utils.py

@@ -2,7 +2,7 @@ import os
 import pathlib
 from typing import TYPE_CHECKING, Union
 
-from funcy import concat, first, lsplit, rpartial, without
+from funcy import concat, first, lsplit, rpartial
 
 from dvc.annotations import ANNOTATION_FIELDS
 from dvc.exceptions import InvalidArgumentError
@@ -66,8 +66,6 @@ def fill_stage_outputs(stage, **kwargs):
 
     stage.outs = []
 
-    stage.outs += _load_live_output(stage, **kwargs)
-
     for key in keys:
         stage.outs += loads_from(
             stage,
@@ -80,34 +78,6 @@ def fill_stage_outputs(stage, **kwargs):
         )
 
 
-def _load_live_output(
-    stage,
-    live=None,
-    live_no_cache=None,
-    live_summary=False,
-    live_html=False,
-    **kwargs,
-):
-    from dvc.output import Output, loads_from
-
-    outs = []
-    if live or live_no_cache:
-        assert bool(live) != bool(live_no_cache)
-
-        path = live or live_no_cache
-        outs += loads_from(
-            stage,
-            [path],
-            use_cache=not bool(live_no_cache),
-            live={
-                Output.PARAM_LIVE_SUMMARY: live_summary,
-                Output.PARAM_LIVE_HTML: live_html,
-            },
-        )
-
-    return outs
-
-
 def fill_stage_dependencies(
     stage, deps=None, erepo=None, params=None, fs_config=None
 ):
@@ -274,7 +244,6 @@ def prepare_file_path(kwargs):
             kwargs.get("outs_persist", []),
             kwargs.get("outs_persist_no_cache", []),
             kwargs.get("checkpoints", []),
-            without([kwargs.get("live", None)], None),
         )
     )
 
@@ -332,15 +301,4 @@ def validate_kwargs(single_stage: bool = False, fname: str = None, **kwargs):
     if single_stage:
         kwargs.pop("name", None)
 
-    if kwargs.get("live") and kwargs.get("live_no_cache"):
-        raise InvalidArgumentError(
-            "cannot specify both `--live` and `--live-no-cache`"
-        )
-
-    kwargs.update(
-        {
-            "live_summary": not kwargs.pop("live_no_summary", False),
-            "live_html": not kwargs.pop("live_no_html", False),
-        }
-    )
     return kwargs

dvc/testing/api_tests.py

@@ -13,14 +13,22 @@ class TestAPI:
         assert api.get_url("foo") == expected_url
 
     def test_open(self, tmp_dir, dvc, remote):
-        tmp_dir.dvc_gen("foo", "foo-text")
+        tmp_dir.dvc_gen(
+            {
+                "foo": "foo-text",
+                "dir": {"bar": "bar-text"},
+            }
+        )
         dvc.push()
 
         # Remove cache to force download
         remove(dvc.odb.local.path)
 
-        with api.open("foo") as fd:
-            assert fd.read() == "foo-text"
+        with api.open("foo") as fobj:
+            assert fobj.read() == "foo-text"
+
+        with api.open("dir/bar") as fobj:
+            assert fobj.read() == "bar-text"
 
     @pytest.mark.parametrize(
         "clear_cache", [True, False], ids=["cache", "no_cache"]

dvc/ui/__init__.py

@@ -270,7 +270,9 @@ class Console:
 
         path = Path(file).resolve()
         url = (
-            relpath(path) if "Microsoft" in uname().release else path.as_uri()
+            relpath(path)
+            if "microsoft" in uname().release.lower()
+            else path.as_uri()
         )
 
         opened = webbrowser.open(url)

dvc/utils/hydra.py

@@ -1,15 +1,24 @@
+import sys
 from pathlib import Path
 from typing import TYPE_CHECKING, List
 
-from hydra import compose, initialize_config_dir
-from hydra._internal.config_loader_impl import ConfigLoaderImpl
-from hydra._internal.core_plugins.basic_sweeper import BasicSweeper
-from hydra.core.override_parser.overrides_parser import OverridesParser
-from hydra.core.override_parser.types import ValueType
-from hydra.errors import ConfigCompositionException, OverrideParseException
-from omegaconf import OmegaConf
+try:
+    from hydra import compose, initialize_config_dir
+    from hydra._internal.config_loader_impl import ConfigLoaderImpl
+    from hydra._internal.core_plugins.basic_sweeper import BasicSweeper
+    from hydra.core.override_parser.overrides_parser import OverridesParser
+    from hydra.core.override_parser.types import ValueType
+    from hydra.errors import ConfigCompositionException, OverrideParseException
+    from omegaconf import OmegaConf
 
-from dvc.exceptions import InvalidArgumentError
+    hydra_compatible = True
+except ValueError:
+    if sys.version_info >= (3, 11):
+        hydra_compatible = False
+    else:
+        raise
+
+from dvc.exceptions import DvcException, InvalidArgumentError
 
 from .collections import merge_dicts, remove_missing_keys, to_omegaconf
 from .serialize import DUMPERS, MODIFIERS
@@ -37,11 +46,20 @@ def compose_and_dump(
     .. _Hydra Override:
         https://hydra.cc/docs/advanced/override_grammar/basic/
     """
+    if not hydra_compatible:
+        raise DvcException(
+            "hydra functionality is not supported in Python >= 3.11"
+        )
+
     with initialize_config_dir(config_dir, version_base=None):
         cfg = compose(config_name=config_name, overrides=overrides)
 
-    dumper = DUMPERS[Path(output_file).suffix.lower()]
-    dumper(output_file, OmegaConf.to_object(cfg))
+    suffix = Path(output_file).suffix.lower()
+    if suffix not in [".yml", ".yaml"]:
+        dumper = DUMPERS[suffix]
+        dumper(output_file, OmegaConf.to_object(cfg))
+    else:
+        Path(output_file).write_text(OmegaConf.to_yaml(cfg), encoding="utf-8")
 
 
 def apply_overrides(path: "StrPath", overrides: List[str]) -> None:
@@ -53,6 +71,11 @@ def apply_overrides(path: "StrPath", overrides: List[str]) -> None:
     .. _Hydra Override:
         https://hydra.cc/docs/next/advanced/override_grammar/basic/
     """
+    if not hydra_compatible:
+        raise DvcException(
+            "hydra functionality is not supported in Python >= 3.11"
+        )
+
     suffix = Path(path).suffix.lower()
 
     hydra_errors = (ConfigCompositionException, OverrideParseException)
@@ -78,6 +101,11 @@ def apply_overrides(path: "StrPath", overrides: List[str]) -> None:
 
 
 def to_hydra_overrides(path_overrides):
+    if not hydra_compatible:
+        raise DvcException(
+            "hydra functionality is not supported in Python >= 3.11"
+        )
+
     parser = OverridesParser.create()
     return parser.parse_overrides(overrides=path_overrides)
 
@@ -89,6 +117,11 @@ def dict_product(dicts):
 
 
 def get_hydra_sweeps(path_overrides):
+    if not hydra_compatible:
+        raise DvcException(
+            "hydra functionality is not supported in Python >= 3.11"
+        )
+
     path_sweeps = {}
     for path, overrides in path_overrides.items():
         overrides = to_hydra_overrides(overrides)

dvc/utils/plots.py

@@ -1,2 +1,6 @@
-def get_plot_id(plot_id: str, config_file_path: str = ""):
-    return f"{config_file_path}::{plot_id}" if config_file_path else plot_id
+def get_plot_id(config_plot_id: str, config_file_path: str = ""):
+    return (
+        f"{config_file_path}::{config_plot_id}"
+        if config_file_path
+        else config_plot_id
+    )

pyproject.toml

@@ -51,13 +51,13 @@ dependencies = [
     "pyparsing>=2.4.7",
     "typing-extensions>=3.7.4",
     "scmrepo==0.1.3",
-    "dvc-render==0.0.12",
-    "dvc-task==0.1.4",
-    "dvclive>=0.10.0",
-    "dvc-data==0.25.2",
+    "dvc-render==0.0.14",
+    "dvc-task==0.1.6",
+    "dvclive>=1.0",
+    "dvc-data==0.28.0",
     "dvc-http==2.27.2",
     "hydra-core>=1.1.0",
-    "iterative-telemetry==0.0.5",
+    "iterative-telemetry==0.0.6",
 ]
 dynamic = ["version"]
 classifiers = [
@@ -70,12 +70,12 @@ classifiers = [
 ]
 
 [project.optional-dependencies]
-azure = ["dvc-azure==2.20.4"]
-gdrive = ["dvc-gdrive==2.19.0"]
-gs = ["dvc-gs==2.19.1"]
+azure = ["dvc-azure==2.20.5"]
+gdrive = ["dvc-gdrive==2.19.1"]
+gs = ["dvc-gs==2.20.0"]
 hdfs = ["dvc-hdfs==2.19.0; python_version < '3.11'"]
 oss = ["dvc-oss==2.19.0"]
-s3 = ["dvc-s3==2.20.1"]
+s3 = ["dvc-s3==2.21.0"]
 ssh = ["dvc-ssh==2.20.0"]
 ssh_gssapi = ["dvc-ssh[gssapi]==2.20.0"]
 webdav = ["dvc-webdav==2.19.0"]
@@ -99,8 +99,8 @@ tests = [
     "pytest-timeout==2.1.0",
     "filelock==3.8.0",
     # optional dependencies
+    "dvclive>=1.0",
     "pywin32>=225; sys_platform == 'win32'",
-    "dvclive[image]>=0.7.3",
     "beautifulsoup4==4.11.1",
     # pylint requirements
     "pylint==2.15.5",
@@ -110,7 +110,7 @@ tests = [
     # and, protected method calls in our tests
     "pylint-plugin-utils==0.7",
     # type-checking
-    "mypy==0.982",
+    "mypy==0.990",
     "types-requests>=2.27.15",
     "types-tabulate>=0.8.6",
     "types-toml>=0.10.4",
@@ -171,6 +171,7 @@ markers = [
 ]
 xfail_strict = true
 testpaths = ["tests"]
+filterwarnings = ["error::pytest_mock.PytestMockWarning"]
 
 [tool.coverage.run]
 branch = true
@@ -200,6 +201,7 @@ show_traceback = true
 pretty = true
 # See https://mypy.readthedocs.io/en/latest/running_mypy.html#missing-imports.
 ignore_missing_imports = true
+implicit_optional = true
 check_untyped_defs = false
 # Warnings
 warn_no_return = true

scripts/fpm/build.py

@@ -44,6 +44,10 @@ if args.pkg == "osxpkg":
         ]
     )
 else:
+    if args.pkg == "rpm":
+        # https://github.com/jordansissel/fpm/issues/1503
+        flags.extend(["--rpm-rpmbuild-define", "_build_id_links none"])
+
     bash_dir = build / "etc" / "bash_completion.d"
     dirs = ["usr", "etc"]
     flags.extend(["--depends", "git >= 1.7.0"])  # needed for gitpython

scripts/pyinstaller/hooks/hook-asyncssh.py

@@ -0,0 +1 @@
+hiddenimports = ["win32timezone"]

scripts/pyinstaller/hooks/hook-pydrive2.py

@@ -3,4 +3,3 @@ from PyInstaller.utils.hooks import (  # pylint:disable=import-error
 )
 
 datas = copy_metadata("pydrive2")
-datas += copy_metadata("google-api-python-client")

tests/basic_env.py

@@ -1,173 +0,0 @@
-import logging
-import os
-import tempfile
-import warnings
-from unittest import TestCase
-
-import pytest
-import shortuuid
-
-from dvc.repo import Repo as DvcRepo
-from dvc.utils.fs import remove
-
-logger = logging.getLogger("dvc")
-
-
-class TestDirFixture:
-    DATA_DIR = "data_dir"
-    DATA_SUB_DIR = os.path.join(DATA_DIR, "data_sub_dir")
-    DATA = os.path.join(DATA_DIR, "data")
-    DATA_SUB = os.path.join(DATA_SUB_DIR, "data_sub")
-    DATA_CONTENTS = DATA
-    DATA_SUB_CONTENTS = DATA_SUB
-    FOO = "foo"
-    FOO_CONTENTS = FOO
-    BAR = "bar"
-    # NOTE: len(FOO_CONTENTS) must be != len(BAR_CONTENTS)
-    #
-    # Our state database relies on file mtime and file size to determine
-    # that a file has changed. Usually, mtime is enough by itself but on
-    # some filesystems like APFS on macOS mtime resolution is so bad,
-    # that our tests can overwrite a file in that time window without dvc
-    # being able to detect that, thus causing tests to fail. Usually,
-    # in tests, we replace foo with bar, so we need to make sure that when we
-    # modify a file in our tests, its content length changes.
-    BAR_CONTENTS = BAR + "r"
-    CODE = "code.py"
-    CODE_CONTENTS = (
-        "import sys\nimport shutil\n"
-        "shutil.copyfile(sys.argv[1], sys.argv[2])"
-    )
-    UNICODE = "тест"
-    UNICODE_CONTENTS = "проверка"
-
-    def __init__(self):
-        root_dir = self.mkdtemp()
-        self._root_dir = os.path.realpath(root_dir)
-        self._saved_dir = None
-
-    @property
-    def root_dir(self):
-        return self._root_dir
-
-    def _pushd(self, d):
-        if not self._saved_dir:
-            self._saved_dir = os.path.realpath(os.curdir)
-        os.chdir(d)
-
-    def _popd(self):
-        os.chdir(self._saved_dir)
-        self._saved_dir = None
-
-    def create(self, name, contents):
-        dname = os.path.dirname(name)
-        if len(dname) > 0 and not os.path.isdir(dname):
-            os.makedirs(dname)
-
-        with open(name, "a", encoding="utf-8") as f:
-            f.write(
-                contents
-                if isinstance(contents, str)
-                else contents.decode("utf-8")
-            )
-
-    @staticmethod
-    def mkdtemp(base_directory=None):
-        prefix = f"dvc-test.{os.getpid()}."
-        suffix = f".{shortuuid.uuid()}"
-        return tempfile.mkdtemp(
-            prefix=prefix, suffix=suffix, dir=base_directory
-        )
-
-    def setUp(self):
-        self._pushd(self._root_dir)
-        self.create(self.FOO, self.FOO_CONTENTS)
-        self.create(self.BAR, self.BAR_CONTENTS)
-        self.create(self.CODE, self.CODE_CONTENTS)
-        os.mkdir(self.DATA_DIR)
-        os.mkdir(self.DATA_SUB_DIR)
-        self.create(self.DATA, self.DATA_CONTENTS)
-        self.create(self.DATA_SUB, self.DATA_SUB_CONTENTS)
-        self.create(self.UNICODE, self.UNICODE_CONTENTS)
-
-    def tearDown(self):
-        self._popd()
-        try:
-            remove(self._root_dir)
-        except OSError as exc:  # pragma: no cover
-            # pylint: disable=no-member
-            # We ignore this under Windows with a warning because it happened
-            # to be really hard to trace all not properly closed files.
-            #
-            # Best guess so far is that gitpython is the culprit:
-            # it opens files and uses __del__ to close them, which can happen
-            # late in current pythons. TestGitFixture and TestDvcFixture try
-            # to close that and it works on most of the tests, but not all.
-            # Repos and thus git repos are created all over the dvc ;)
-            if os.name == "nt" and exc.winerror == 32:
-                warnings.warn("Failed to remove test dir: " + str(exc))
-            else:
-                raise
-
-
-class TestGitFixture(TestDirFixture):
-    N_RETRIES = 5
-
-    def setUp(self):
-        from scmrepo.git import Git
-
-        super().setUp()
-        self.git = Git.init(".")
-        self.git.add_commit(self.CODE, message="add code")
-
-    def tearDown(self):
-        self.git.close()
-        super().tearDown()
-
-
-class TestDvcFixture(TestDirFixture):
-    def setUp(self):
-        super().setUp()
-        self.dvc = DvcRepo.init(self.root_dir, no_scm=True)
-
-    def tearDown(self):
-        self.dvc.close()
-        super().tearDown()
-
-
-class TestDvcGitFixture(TestGitFixture):
-    def setUp(self):
-        super().setUp()
-        self.dvc = DvcRepo.init(self.root_dir)
-        self.dvc.scm.commit("init dvc")
-
-    def tearDown(self):
-        self.dvc.close()
-        super().tearDown()
-
-
-# NOTE: Inheritance order in the classes below is important.
-
-
-class TestDvc(TestDvcFixture, TestCase):
-    def __init__(self, methodName):
-        TestDvcFixture.__init__(self)
-        TestCase.__init__(self, methodName)
-        self._caplog = None
-        self._capsys = None
-
-    @pytest.fixture(autouse=True)
-    def inject_fixtures(self, caplog, capsys):
-        self._caplog = caplog
-        self._capsys = capsys
-
-
-class TestDvcGit(TestDvcGitFixture, TestCase):
-    def __init__(self, methodName):
-        TestDvcGitFixture.__init__(self)
-        TestCase.__init__(self, methodName)
-        self._caplog = None
-
-    @pytest.fixture(autouse=True)
-    def inject_fixtures(self, caplog):
-        self._caplog = caplog

tests/conftest.py

@@ -1,3 +1,4 @@
+import gc
 import json
 import os
 import sys
@@ -9,7 +10,7 @@ from dvc.testing.fixtures import *  # noqa, pylint: disable=wildcard-import
 
 from .dir_helpers import *  # noqa, pylint: disable=wildcard-import
 from .remotes import *  # noqa, pylint: disable=wildcard-import
-from .utils.scriptify import scriptify
+from .scripts import *  # noqa, pylint: disable=wildcard-import
 
 # Prevent updater and analytics from running their processes
 os.environ["DVC_TEST"] = "true"
@@ -172,9 +173,6 @@ def custom_template(tmp_dir, dvc):
     return template
 
 
-scriptify_fixture = pytest.fixture(lambda: scriptify, name="scriptify")
-
-
 @pytest.fixture(autouse=True)
 def mocked_webbrowser_open(mocker):
     mocker.patch("webbrowser.open")
@@ -218,7 +216,7 @@ defaultBranch=master
 
 
 @pytest.fixture
-def run_copy_metrics(tmp_dir, run_copy):
+def run_copy_metrics(tmp_dir, copy_script):
     def run(
         file1,
         file2,
@@ -262,3 +260,19 @@ def mock_hydra_conf(mocker):
     # NOTE: using sentinel here so that any imports from `hydra.conf`
     # return a mock.
     sys.modules["hydra.conf"] = mocker.sentinel
+
+
+@pytest.fixture(autouse=True)
+def gc_collect_on_dvc_close_on_win_311(mocker):
+    if sys.version_info < (3, 11) and os.name != "nt":
+        return
+
+    from dvc.repo import Repo
+
+    close = Repo.close
+
+    def wrapped(repo):
+        close(repo)
+        gc.collect()
+
+    mocker.patch("dvc.repo.Repo.close", wrapped)

tests/dir_helpers.py

@@ -47,7 +47,6 @@ from global repo template to creating everything inplace, which:
 
 import os
 import pathlib
-from textwrap import dedent
 
 import pytest
 
@@ -67,17 +66,7 @@ disable_other_loggers()
 
 
 @pytest.fixture
-def run_copy(tmp_dir, dvc):
-    tmp_dir.gen(
-        "copy.py",
-        (
-            "import sys, shutil, os\n"
-            "shutil.copyfile(sys.argv[1], sys.argv[2]) "
-            "if os.path.isfile(sys.argv[1]) "
-            "else shutil.copytree(sys.argv[1], sys.argv[2])"
-        ),
-    )
-
+def run_copy(tmp_dir, copy_script, dvc):
     def run_copy(src, dst, **run_kwargs):
         wdir = pathlib.Path(run_kwargs.get("wdir", "."))
         wdir = pathlib.Path("../" * len(wdir.parts))
@@ -94,23 +83,7 @@ def run_copy(tmp_dir, dvc):
 
 
 @pytest.fixture
-def run_head(tmp_dir, dvc):
-    """Output first line of each file to different file with '-1' appended.
-    Useful for tracking multiple outputs/dependencies which are not a copy
-    of each others.
-    """
-    tmp_dir.gen(
-        {
-            "head.py": dedent(
-                """
-        import sys
-        for file in sys.argv[1:]:
-            with open(file) as f, open(file +"-1","w+") as w:
-                w.write(f.readline())
-        """
-            )
-        }
-    )
+def run_head(tmp_dir, head_script, dvc):
     script = os.path.abspath(tmp_dir / "head.py")
 
     def run(*args, **run_kwargs):

tests/func/experiments/test_experiments.py

@@ -13,7 +13,7 @@ from dvc.repo.experiments.utils import exp_refs_by_rev
 from dvc.scm import resolve_rev
 from dvc.stage.exceptions import StageFileDoesNotExistError
 from dvc.utils.serialize import PythonFileCorruptedError
-from tests.func.test_repro_multistage import COPY_SCRIPT
+from tests.scripts import COPY_SCRIPT
 
 
 @pytest.mark.parametrize("name", [None, "foo"])
@@ -209,8 +209,7 @@ def test_get_baseline(tmp_dir, scm, dvc, exp_stage):
     assert dvc.experiments.get_baseline(f"{CELERY_STASH}@{{1}}") == init_rev
 
 
-def test_update_py_params(tmp_dir, scm, dvc, test_queue):
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
+def test_update_py_params(tmp_dir, scm, dvc, test_queue, copy_script):
     tmp_dir.gen("params.py", "INT = 1\n")
     stage = dvc.run(
         cmd="python copy.py params.py metrics.py",
@@ -371,8 +370,7 @@ def test_no_scm(tmp_dir):
             getattr(dvc.experiments, cmd)()
 
 
-def test_untracked(tmp_dir, scm, dvc, caplog, workspace):
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
+def test_untracked(tmp_dir, scm, dvc, caplog, workspace, copy_script):
     tmp_dir.scm_gen("params.yaml", "foo: 1", commit="track params")
     stage = dvc.run(
         cmd="python copy.py params.yaml metrics.yaml",
@@ -419,7 +417,7 @@ def test_packed_args_exists(tmp_dir, scm, dvc, exp_stage, caplog):
         assert "Temporary DVC file" in caplog.text
 
 
-def test_list(tmp_dir, scm, dvc, exp_stage):
+def _prepare_experiments(tmp_dir, scm, dvc, exp_stage):
     baseline_a = scm.get_rev()
     results = dvc.experiments.run(exp_stage.addressing, params=["foo=2"])
     exp_a = first(results)
@@ -435,6 +433,18 @@ def test_list(tmp_dir, scm, dvc, exp_stage):
     exp_c = first(results)
     ref_info_c = first(exp_refs_by_rev(scm, exp_c))
 
+    return baseline_a, baseline_c, ref_info_a, ref_info_b, ref_info_c
+
+
+def test_list(tmp_dir, scm, dvc, exp_stage):
+    (
+        baseline_a,
+        baseline_c,
+        ref_info_a,
+        ref_info_b,
+        ref_info_c,
+    ) = _prepare_experiments(tmp_dir, scm, dvc, exp_stage)
+
     assert dvc.experiments.ls() == {baseline_c: [ref_info_c.name]}
 
     exp_list = dvc.experiments.ls(rev=ref_info_a.baseline_sha)
@@ -449,6 +459,25 @@ def test_list(tmp_dir, scm, dvc, exp_stage):
     }
 
 
+def test_list_cli(tmp_dir, scm, dvc, capsys, exp_stage):
+    from dvc.cli import main
+
+    baseline_a, _, ref_info_a, ref_info_b, ref_info_c = _prepare_experiments(
+        tmp_dir, scm, dvc, exp_stage
+    )
+
+    # Make sure that we prioritize the current branch name
+    scm.checkout("branch", True)
+
+    capsys.readouterr()
+    assert main(["exp", "list", "-A"]) == 0
+    cap = capsys.readouterr()
+    assert set(cap.out.split()) == set(
+        ["branch:", baseline_a[:7] + ":"]
+        + [ref_info_a.name, ref_info_b.name, ref_info_c.name]
+    )
+
+
 def test_subdir(tmp_dir, scm, dvc, workspace):
     subdir = tmp_dir / "dir"
     subdir.gen("copy.py", COPY_SCRIPT)
@@ -538,7 +567,7 @@ def test_run_celery(tmp_dir, scm, dvc, exp_stage, mocker):
     repro_spy = mocker.spy(dvc.experiments, "reproduce_celery")
     results = dvc.experiments.run(run_all=True)
     assert len(results) == 2
-    repro_spy.assert_called_once_with(entries=mocker.ANY, jobs=1)
+    repro_spy.assert_called_once_with(jobs=1)
 
     expected = {"foo: 2", "foo: 3"}
     metrics = set()
@@ -600,9 +629,10 @@ def test_fix_exp_head(tmp_dir, scm, tail):
     "params, target",
     itertools.product(("foo: 1", "foo: 2"), (True, False)),
 )
-def test_modified_data_dep(tmp_dir, scm, dvc, workspace, params, target):
+def test_modified_data_dep(
+    tmp_dir, scm, dvc, workspace, params, target, copy_script
+):
     tmp_dir.dvc_gen("data", "data")
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
     tmp_dir.gen("params.yaml", "foo: 1")
     exp_stage = dvc.run(
         cmd="python copy.py params.yaml metrics.yaml",

tests/func/experiments/test_gc.py

@@ -1,12 +1,9 @@
 import pytest
 from funcy import first
 
-from tests.func.test_repro_multistage import COPY_SCRIPT
-
 
 @pytest.mark.parametrize("queued, expected", [(True, 0), (False, 1)])
-def test_workspace(tmp_dir, scm, dvc, queued, expected):
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
+def test_workspace(tmp_dir, scm, dvc, queued, expected, copy_script):
     tmp_dir.gen("params.yaml", "foo: 1")
 
     stage = dvc.run(
@@ -26,8 +23,7 @@ def test_workspace(tmp_dir, scm, dvc, queued, expected):
 
 
 @pytest.mark.parametrize("queued, expected", [(True, 0), (False, 2)])
-def test_all_commits(tmp_dir, scm, dvc, queued, expected):
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
+def test_all_commits(tmp_dir, scm, dvc, queued, expected, copy_script):
     tmp_dir.gen("params.yaml", "foo: 1")
 
     stage = dvc.run(
@@ -55,8 +51,7 @@ def test_all_commits(tmp_dir, scm, dvc, queued, expected):
 
 
 @pytest.mark.parametrize("queued, expected", [(True, 2), (False, 3)])
-def test_all_branches(tmp_dir, scm, dvc, queued, expected):
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
+def test_all_branches(tmp_dir, scm, dvc, queued, expected, copy_script):
     tmp_dir.gen("params.yaml", "foo: 1")
 
     stage = dvc.run(
@@ -91,8 +86,7 @@ def test_all_branches(tmp_dir, scm, dvc, queued, expected):
 
 
 @pytest.mark.parametrize("queued, expected", [(True, 2), (False, 3)])
-def test_all_tags(tmp_dir, scm, dvc, queued, expected):
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
+def test_all_tags(tmp_dir, scm, dvc, queued, expected, copy_script):
     tmp_dir.gen("params.yaml", "foo: 1")
 
     stage = dvc.run(

tests/func/experiments/test_init.py

@@ -345,11 +345,13 @@ def test_init_interactive_live(
             "train": {
                 "cmd": "python script.py",
                 "deps": ["data", "script.py"],
-                "metrics": [{"dvclive.json": {"cache": False}}],
+                "metrics": [
+                    {os.path.join("dvclive", "metrics.json"): {"cache": False}}
+                ],
                 "outs": ["models"],
                 "params": [{"params.yaml": None}],
                 "plots": [
-                    {os.path.join("dvclive", "scalars"): {"cache": False}}
+                    {os.path.join("dvclive", "plots"): {"cache": False}}
                 ],
             }
         }
@@ -434,12 +436,12 @@ def test_init_with_type_default_and_live_provided(
                 "cmd": "cmd",
                 "deps": ["data", "src"],
                 "metrics": [
-                    {"live.json": {"cache": False}},
+                    {os.path.join("live", "metrics.json"): {"cache": False}},
                 ],
                 "outs": ["models"],
                 "params": [{"params.yaml": None}],
                 "plots": [
-                    {os.path.join("live", "scalars"): {"cache": False}},
+                    {os.path.join("live", "plots"): {"cache": False}},
                 ],
             }
         }
@@ -477,13 +479,13 @@ def test_init_with_live_and_metrics_plots_provided(
                 "cmd": "cmd",
                 "deps": ["data", "src"],
                 "metrics": [
-                    {"live.json": {"cache": False}},
+                    {os.path.join("live", "metrics.json"): {"cache": False}},
                     {"metrics.json": {"cache": False}},
                 ],
                 "outs": ["models"],
                 "params": [{"params.yaml": None}],
                 "plots": [
-                    {os.path.join("live", "scalars"): {"cache": False}},
+                    {os.path.join("live", "plots"): {"cache": False}},
                     {"plots": {"cache": False}},
                 ],
             }

tests/func/experiments/test_queue.py

@@ -11,64 +11,54 @@ def to_dict(tasks):
     return status_dict
 
 
-@pytest.fixture
-def success_tasks(tmp_dir, dvc, scm, test_queue, exp_stage):
-    queue_length = 3
-    name_list = []
-    for i in range(queue_length):
-        name = f"success{i}"
-        name_list.append(name)
-        dvc.experiments.run(
-            exp_stage.addressing, params=[f"foo={i}"], queue=True, name=name
-        )
-    dvc.experiments.run(run_all=True)
-    return name_list
-
-
-@pytest.fixture
-def failed_tasks(tmp_dir, dvc, scm, test_queue, failed_exp_stage):
-    queue_length = 3
-    name_list = []
-    for i in range(queue_length):
-        name = f"failed{i}"
-        name_list.append(name)
-        dvc.experiments.run(
-            failed_exp_stage.addressing,
-            params=[f"foo={i+queue_length}"],
-            queue=True,
-            name=name,
-        )
-    dvc.experiments.run(run_all=True)
-    return name_list
-
-
-@pytest.mark.xfail(strict=False, reason="pytest-celery flaky")
 @pytest.mark.parametrize("follow", [True, False])
 def test_celery_logs(
     tmp_dir,
     scm,
     dvc,
     failed_exp_stage,
-    test_queue,
     follow,
     capsys,
 ):
+    celery_queue = dvc.experiments.celery_queue
     dvc.experiments.run(failed_exp_stage.addressing, queue=True)
     dvc.experiments.run(run_all=True)
 
-    queue = dvc.experiments.celery_queue
-    done_result = first(queue.iter_done())
+    done_result = first(celery_queue.iter_done())
+
     name = done_result.entry.stash_rev
     captured = capsys.readouterr()
-    queue.logs(name, follow=follow)
+    celery_queue.logs(name, follow=follow)
     captured = capsys.readouterr()
     assert "failed to reproduce 'failed-copy-file'" in captured.out
 
 
-@pytest.mark.xfail(strict=False, reason="pytest-celery flaky")
-def test_queue_remove_done(dvc, failed_tasks, success_tasks):
-    assert len(dvc.experiments.celery_queue.failed_stash) == 3
-    status = to_dict(dvc.experiments.celery_queue.status())
+def test_queue_remove_done(
+    dvc,
+    exp_stage,
+    failed_exp_stage,
+):
+    queue_length = 3
+    success_tasks = []
+    failed_tasks = []
+    celery_queue = dvc.experiments.celery_queue
+    for i in range(queue_length):
+        name = f"success{i}"
+        success_tasks.append(name)
+        dvc.experiments.run(
+            exp_stage.addressing, params=[f"foo={i}"], queue=True, name=name
+        )
+        name_fail = f"failed{i}"
+        failed_tasks.append(name_fail)
+        dvc.experiments.run(
+            failed_exp_stage.addressing,
+            params=[f"foo={i+queue_length}"],
+            queue=True,
+            name=name_fail,
+        )
+    dvc.experiments.run(run_all=True)
+    assert len(celery_queue.failed_stash) == 3
+    status = to_dict(celery_queue.status())
     assert len(status) == 6
     for name in failed_tasks:
         assert status[name] == "Failed"
@@ -76,27 +66,21 @@ def test_queue_remove_done(dvc, failed_tasks, success_tasks):
         assert status[name] == "Success"
 
     with pytest.raises(InvalidArgumentError):
-        dvc.experiments.celery_queue.remove(failed_tasks[:2] + ["non-exist"])
-    assert len(dvc.experiments.celery_queue.status()) == 6
+        celery_queue.remove(failed_tasks[:2] + ["non-exist"])
+    assert len(celery_queue.status()) == 6
 
     to_remove = [failed_tasks[0], success_tasks[2]]
-    assert set(dvc.experiments.celery_queue.remove(to_remove)) == set(
-        to_remove
-    )
+    assert set(celery_queue.remove(to_remove)) == set(to_remove)
 
-    assert len(dvc.experiments.celery_queue.failed_stash) == 2
-    status = to_dict(dvc.experiments.celery_queue.status())
+    assert len(celery_queue.failed_stash) == 2
+    status = to_dict(celery_queue.status())
     assert set(status) == set(failed_tasks[1:] + success_tasks[:2])
 
-    assert dvc.experiments.celery_queue.clear(failed=True) == failed_tasks[1:]
+    assert set(celery_queue.clear(failed=True)) == set(failed_tasks[1:])
 
-    assert len(dvc.experiments.celery_queue.failed_stash) == 0
-    assert set(to_dict(dvc.experiments.celery_queue.status())) == set(
-        success_tasks[:2]
-    )
+    assert len(celery_queue.failed_stash) == 0
+    assert set(to_dict(celery_queue.status())) == set(success_tasks[:2])
 
-    assert (
-        dvc.experiments.celery_queue.clear(success=True) == success_tasks[:2]
-    )
+    assert set(celery_queue.clear(success=True)) == set(success_tasks[:2])
 
-    assert dvc.experiments.celery_queue.status() == []
+    assert celery_queue.status() == []

tests/func/experiments/test_set_params.py

@@ -110,6 +110,11 @@ def test_hydra_compose_and_dump(
             ["foo=bar,baz"],
             [{"params.yaml": ["foo=bar"]}, {"params.yaml": ["foo=baz"]}],
         ),
+        (
+            False,
+            [],
+            [{}],
+        ),
     ],
 )
 def test_hydra_sweep(
@@ -139,5 +144,18 @@ def test_hydra_sweep(
 
 
 def test_hydra_sweep_requires_queue(params_repo, dvc):
-    with pytest.raises(InvalidArgumentError):
+    with pytest.raises(
+        InvalidArgumentError,
+        match="Sweep overrides can't be used without `--queue`",
+    ):
         dvc.experiments.run(params=["db=mysql,postgresql"])
+
+
+def test_hydra_sweep_cant_use_name(tmp_dir, params_repo, dvc):
+    with pytest.raises(
+        InvalidArgumentError,
+        match="Sweep overrides can't be used alongside `--name`",
+    ):
+        dvc.experiments.run(
+            params=["db=mysql,postgresql"], queue=True, name="foo"
+        )

tests/func/experiments/test_show.py

@@ -1,10 +1,12 @@
 import logging
 import os
+import random
 from datetime import datetime
 from unittest.mock import ANY
 
 import pytest
 from funcy import first, get_in
+from scmrepo.exceptions import SCMError
 
 from dvc.cli import main
 from dvc.repo.experiments.executor.base import (
@@ -20,7 +22,6 @@ from dvc.repo.experiments.utils import exp_refs_by_rev
 from dvc.utils import relpath
 from dvc.utils.fs import makedirs
 from dvc.utils.serialize import YAMLFileCorruptedError
-from tests.func.test_repro_multistage import COPY_SCRIPT
 
 LOCK_CONTENTS = {
     "read": {
@@ -173,7 +174,6 @@ def test_show_queued(tmp_dir, scm, dvc, exp_stage):
 
 
 @pytest.mark.vscode
-@pytest.mark.xfail(strict=False, reason="pytest-celery flaky")
 def test_show_failed_experiment(tmp_dir, scm, dvc, failed_exp_stage):
     baseline_rev = scm.get_rev()
     timestamp = datetime.fromtimestamp(
@@ -313,10 +313,10 @@ def test_show_filter(
     scm,
     dvc,
     capsys,
+    copy_script,
 ):
     capsys.readouterr()
 
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
     params_file = tmp_dir / "params.yaml"
     params_data = {
         "foo": 1,
@@ -646,6 +646,9 @@ def test_show_csv(tmp_dir, scm, dvc, exp_stage, capsys):
     result1 = dvc.experiments.run(exp_stage.addressing, params=["foo=2"])
     rev1 = first(result1)
     ref_info1 = first(exp_refs_by_rev(scm, rev1))
+
+    # at least 1 second gap between these experiments to make sure
+    # the previous experiment to be regarded as branch_base
     time.sleep(1)
     result2 = dvc.experiments.run(exp_stage.addressing, params=["foo=3"])
     rev2 = first(result2)
@@ -679,8 +682,7 @@ def test_show_csv(tmp_dir, scm, dvc, exp_stage, capsys):
     )
 
 
-def test_show_only_changed(tmp_dir, dvc, scm, capsys):
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
+def test_show_only_changed(tmp_dir, dvc, scm, capsys, copy_script):
     params_file = tmp_dir / "params.yaml"
     params_data = {
         "foo": 1,
@@ -726,13 +728,14 @@ def test_show_only_changed(tmp_dir, dvc, scm, capsys):
     assert "metrics.yaml:bar" in cap.out
 
 
-def test_show_parallel_coordinates(tmp_dir, dvc, scm, mocker, capsys):
+def test_show_parallel_coordinates(
+    tmp_dir, dvc, scm, mocker, capsys, copy_script
+):
     from dvc.commands.experiments import show
 
     webbroser_open = mocker.patch("webbrowser.open")
     show_experiments = mocker.spy(show, "show_experiments")
 
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
     params_file = tmp_dir / "params.yaml"
     params_data = {
         "foo": 1,
@@ -807,8 +810,7 @@ def test_show_parallel_coordinates(tmp_dir, dvc, scm, mocker, capsys):
 
 
 @pytest.mark.vscode
-def test_show_outs(tmp_dir, dvc, scm, erepo_dir):
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
+def test_show_outs(tmp_dir, dvc, scm, erepo_dir, copy_script):
     params_file = tmp_dir / "params.yaml"
     params_data = {
         "foo": 1,
@@ -889,8 +891,7 @@ def test_show_outs(tmp_dir, dvc, scm, erepo_dir):
     }
 
 
-def test_metrics_renaming(tmp_dir, dvc, scm, capsys):
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
+def test_metrics_renaming(tmp_dir, dvc, scm, capsys, copy_script):
     params_file = tmp_dir / "params.yaml"
     params_data = {
         "foo": 1,
@@ -975,3 +976,122 @@ def test_show_sorted_deps(tmp_dir, dvc, scm, capsys):
     assert main(["exp", "show", "--csv"]) == 0
     cap = capsys.readouterr()
     assert "a,b,c,z" in cap.out
+
+
+@pytest.mark.vscode
+def test_show_queued_error(tmp_dir, scm, dvc, exp_stage, mocker):
+    baseline_rev = scm.get_rev()
+
+    dvc.experiments.run(
+        exp_stage.addressing, params=["foo=2"], queue=True, name="test_name"
+    )
+    exp_rev_2 = dvc.experiments.scm.resolve_rev(f"{CELERY_STASH}@{{0}}")
+    commit_2 = scm.resolve_commit(exp_rev_2)
+
+    dvc.experiments.run(exp_stage.addressing, params=["foo=3"], queue=True)
+    exp_rev_3 = dvc.experiments.scm.resolve_rev(f"{CELERY_STASH}@{{0}}")
+
+    def resolve_commit(rev):
+        if rev == exp_rev_3:
+            raise SCMError
+        else:
+            return commit_2
+
+    mocker.patch.object(
+        scm,
+        "resolve_commit",
+        side_effect=mocker.MagicMock(side_effect=resolve_commit),
+    )
+
+    results = dvc.experiments.show()[baseline_rev]
+    assert len(results) == 2
+    exp_2 = results[exp_rev_2]["data"]
+    assert exp_2["status"] == "Queued"
+    assert exp_2["params"]["params.yaml"] == {"data": {"foo": 2}}
+
+
+@pytest.mark.vscode
+def test_show_completed_error(tmp_dir, scm, dvc, exp_stage, mocker):
+    baseline_rev = scm.get_rev()
+
+    result_2 = dvc.experiments.run(exp_stage.addressing, params=["foo=2"])
+    exp_rev_2 = first(result_2)
+    commit_2 = scm.resolve_commit(exp_rev_2)
+    result_3 = dvc.experiments.run(exp_stage.addressing, params=["foo=3"])
+    exp_rev_3 = first(result_3)
+
+    def resolve_commit(rev):
+        if rev == exp_rev_3:
+            raise SCMError
+        else:
+            return commit_2
+
+    mocker.patch.object(
+        scm,
+        "resolve_commit",
+        side_effect=mocker.MagicMock(side_effect=resolve_commit),
+    )
+    experiments = dvc.experiments.show()[baseline_rev]
+    assert len(experiments) == 2
+    assert exp_rev_2 in experiments
+
+
+@pytest.mark.vscode
+def test_show_checkpoint_error(tmp_dir, scm, dvc, checkpoint_stage, mocker):
+    baseline_rev = scm.get_rev()
+    results = dvc.experiments.run(
+        checkpoint_stage.addressing, params=["foo=2"]
+    )
+    exp_rev = first(results)
+    exp_ref = str(first(exp_refs_by_rev(scm, exp_rev)))
+
+    results = dvc.experiments.show()[baseline_rev]
+    assert len(results) == checkpoint_stage.iterations + 1
+
+    checkpoints = {}
+    for rev in results:
+        if rev != "baseline":
+            checkpoints[rev] = scm.resolve_commit(rev)
+    checkpoints[exp_ref] = scm.resolve_commit(exp_ref)
+    checkpoints[baseline_rev] = scm.resolve_commit(baseline_rev)
+
+    failed_rev = random.choice(list(checkpoints.keys()))
+
+    def resolve_commit(rev):
+        if rev == failed_rev:
+            raise SCMError
+        return checkpoints[rev]
+
+    mocker.patch.object(
+        scm,
+        "resolve_commit",
+        side_effect=mocker.MagicMock(side_effect=resolve_commit),
+    )
+    results = dvc.experiments.show()[baseline_rev]
+    assert len(results) == 1
+
+
+@pytest.mark.vscode
+def test_show_baseline_error(tmp_dir, scm, dvc, exp_stage, mocker):
+    baseline_rev = scm.get_rev()
+    branch = scm.active_branch()
+
+    result_2 = dvc.experiments.run(exp_stage.addressing, params=["foo=2"])
+    exp_rev_2 = first(result_2)
+    commit_2 = scm.resolve_commit(exp_rev_2)
+
+    def resolve_commit(rev):
+        if rev == baseline_rev:
+            raise SCMError
+        else:
+            return commit_2
+
+    mocker.patch.object(
+        scm,
+        "resolve_commit",
+        side_effect=mocker.MagicMock(side_effect=resolve_commit),
+    )
+    experiments = dvc.experiments.show()[baseline_rev]
+    assert len(experiments) == 1
+    assert experiments["baseline"]["data"] == {"name": branch}
+    assert isinstance(experiments["baseline"]["error"], SCMError)

tests/func/parsing/test_interpolated_entry.py

@@ -6,6 +6,7 @@ import pytest
 from dvc.dependency import _merge_params
 from dvc.parsing import DEFAULT_PARAMS_FILE, DataResolver
 from dvc.parsing.context import recurse_not_a_node
+from dvc.parsing.interpolate import escape_str
 
 from . import (
     CONTEXT_DATA,
@@ -272,14 +273,17 @@ def test_cmd_dict(tmp_dir, dvc, bool_config, list_config):
         if list_config:
             conf["parsing"]["list"] = list_config
 
+    string = "spaced string"
+    mixed_quote_string = "quote\"'d"
     data = {
         "dict": {
             "foo": "foo",
             "bar": 2,
-            "string": "spaced string",
+            "string": string,
+            "mixed_quote_string": mixed_quote_string,
             "bool": True,
             "bool-false": False,
-            "list": [1, 2, "foo"],
+            "list": [1, 2, "foo", mixed_quote_string],
             "nested": {"foo": "foo"},
         }
     }
@@ -296,9 +300,10 @@ def test_cmd_dict(tmp_dir, dvc, bool_config, list_config):
         bool_resolved = " --bool --no-bool-false"
 
     if list_config is None or list_config == "nargs":
-        list_resolved = " --list 1 2 'foo'"
+        list_resolved = f" --list 1 2 foo {escape_str(mixed_quote_string)}"
     else:
-        list_resolved = " --list 1 --list 2 --list 'foo'"
+        list_resolved = " --list 1 --list 2 --list foo"
+        list_resolved += f" --list {escape_str(mixed_quote_string)}"
 
     assert_stage_equal(
         resolver.resolve(),
@@ -306,11 +311,12 @@ def test_cmd_dict(tmp_dir, dvc, bool_config, list_config):
             "stages": {
                 "stage1": {
                     "cmd": "python script.py"
-                    " --foo 'foo' --bar 2"
-                    " --string 'spaced string'"
+                    " --foo foo --bar 2"
+                    f" --string {escape_str(string)}"
+                    f" --mixed_quote_string {escape_str(mixed_quote_string)}"
                     f"{bool_resolved}"
                     f"{list_resolved}"
-                    " --nested.foo 'foo'"
+                    " --nested.foo foo"
                 }
             }
         },

tests/func/plots/test_show.py

@@ -257,16 +257,21 @@ def test_log_errors(
     )
 
 
-def test_plots_binary(tmp_dir, scm, dvc, run_copy_metrics, custom_template):
-    with open("image.jpg", "wb") as fd:
+@pytest.mark.parametrize("ext", ["jpg", "svg"])
+def test_plots_binary(
+    tmp_dir, scm, dvc, run_copy_metrics, custom_template, ext
+):
+    file1 = f"image.{ext}"
+    file2 = f"plot.{ext}"
+    with open(file1, "wb") as fd:
         fd.write(b"content")
 
-    dvc.add(["image.jpg"])
+    dvc.add([file1])
     run_copy_metrics(
-        "image.jpg",
-        "plot.jpg",
+        file1,
+        file2,
         commit="run training",
-        plots=["plot.jpg"],
+        plots=[file2],
         name="s2",
         single_stage=False,
     )
@@ -276,12 +281,12 @@ def test_plots_binary(tmp_dir, scm, dvc, run_copy_metrics, custom_template):
 
     scm.tag("v1")
 
-    with open("plot.jpg", "wb") as fd:
+    with open(file2, "wb") as fd:
         fd.write(b"content2")
 
     result = dvc.plots.show(revs=["v1", "workspace"])
-    assert get_plot(result, "v1", file="plot.jpg") == b"content"
-    assert get_plot(result, "workspace", file="plot.jpg") == b"content2"
+    assert get_plot(result, "v1", file=file2) == b"content"
+    assert get_plot(result, "workspace", file=file2) == b"content2"
 
 
 def test_collect_non_existing_dir(tmp_dir, dvc, run_copy_metrics):
@@ -331,16 +336,15 @@ def test_collect_non_existing_dir(tmp_dir, dvc, run_copy_metrics):
 @pytest.mark.parametrize(
     "plot_config,expected_datafiles",
     [
-        # TODO - enable providing data files for x
-        # (
-        #     {
-        #         "comparison": {
-        #             "x": {"data1.json": "a"},
-        #             "y": {"sub/dir/data2.json": "b"},
-        #         }
-        #     },
-        #     ["data1.json", os.path.join("sub", "dir", "data2.json")],
-        # ),
+        (
+            {
+                "comparison": {
+                    "x": {"data1.json": "a"},
+                    "y": {"sub/dir/data2.json": "b"},
+                }
+            },
+            ["data1.json", os.path.join("sub", "dir", "data2.json")],
+        ),
         (
             {"data1.json": {"x": "c", "y": "a", "title": "File as key test"}},
             ["data1.json"],

tests/func/test_add.py

@@ -4,8 +4,7 @@ import os
 import shutil
 import stat
 import textwrap
-import time
-from unittest.mock import call, patch
+from unittest.mock import call
 
 import colorama
 import pytest
@@ -35,12 +34,11 @@ from dvc.stage.exceptions import (
     StagePathNotFoundError,
 )
 from dvc.testing.workspace_tests import TestAdd
-from dvc.utils import LARGE_DIR_SIZE, relpath
+from dvc.utils import LARGE_DIR_SIZE
 from dvc.utils.fs import path_isin
-from dvc.utils.serialize import YAMLFileCorruptedError, load_yaml
+from dvc.utils.serialize import YAMLFileCorruptedError
 from dvc_data.hashfile.hash import file_md5
 from dvc_data.hashfile.hash_info import HashInfo
-from tests.basic_env import TestDvc
 from tests.utils import get_gitignore_content
 
 
@@ -120,49 +118,38 @@ def test_add_directory(tmp_dir, dvc):
             assert "\\" not in part
 
 
-class TestAddDirectoryRecursive(TestDvc):
-    def test(self):
-        stages = self.dvc.add(self.DATA_DIR, recursive=True)
-        self.assertEqual(len(stages), 2)
+def test_add_directory_recursive(tmp_dir, dvc):
+    tmp_dir.gen("data", {"file1": "file1", "sub": {"file2": "file2"}})
+    stages = dvc.add("data", recursive=True)
+    assert len(stages) == 2
 
 
-class TestAddCmdDirectoryRecursive(TestDvc):
-    def test(self):
-        ret = main(["add", "--recursive", self.DATA_DIR])
-        self.assertEqual(ret, 0)
-
-    def test_warn_about_large_directories(self):
-        warning = (
-            "You are adding a large directory 'large-dir' recursively."
-            "\nConsider tracking it as a whole instead with "
-            "`{cyan}dvc add large-dir{nc}`"
-        ).format(
-            cyan=colorama.Fore.CYAN,
-            nc=colorama.Style.RESET_ALL,
-        )
-
-        os.mkdir("large-dir")
-
-        # Create a lot of files
-        for iteration in range(LARGE_DIR_SIZE + 1):
-            path = os.path.join("large-dir", str(iteration))
-            with open(path, "w", encoding="utf-8") as fobj:
-                fobj.write(path)
-
-        assert main(["add", "--recursive", "large-dir"]) == 0
-        assert warning in self._capsys.readouterr()[1]
+def test_add_cmd_directory_recursive(tmp_dir, dvc):
+    tmp_dir.gen("data", {"file1": "file1", "sub": {"file2": "file2"}})
+    assert main(["add", "--recursive", "data"]) == 0
 
 
-class TestAddDirectoryWithForwardSlash(TestDvc):
-    def test(self):
-        dname = "directory/"
-        os.mkdir(dname)
-        self.create(os.path.join(dname, "file"), "file")
-        stages = self.dvc.add(dname)
-        self.assertEqual(len(stages), 1)
-        stage = stages[0]
-        self.assertTrue(stage is not None)
-        self.assertEqual(os.path.abspath("directory.dvc"), stage.path)
+def test_warn_about_large_directories_recursive_add(tmp_dir, dvc, capsys):
+    warning = (
+        "You are adding a large directory 'large-dir' recursively."
+        "\nConsider tracking it as a whole instead with "
+        "`{cyan}dvc add large-dir{nc}`"
+    ).format(
+        cyan=colorama.Fore.CYAN,
+        nc=colorama.Style.RESET_ALL,
+    )
+
+    tmp_dir.gen(
+        "large-dir", {f"{i}": f"{i}" for i in range(LARGE_DIR_SIZE + 1)}
+    )
+    assert main(["add", "--recursive", "large-dir"]) == 0
+    assert warning in capsys.readouterr()[1]
+
+
+def test_add_directory_with_forward_slash(tmp_dir, dvc):
+    tmp_dir.gen("directory", {"file": "file"})
+    (stage,) = dvc.add("directory/")
+    assert stage.relpath == "directory.dvc"
 
 
 def test_add_tracked_file(tmp_dir, scm, dvc):
@@ -178,33 +165,23 @@ def test_add_tracked_file(tmp_dir, scm, dvc):
         dvc.add(path)
 
 
-class TestAddDirWithExistingCache(TestDvc):
-    def test(self):
-        dname = "a"
-        fname = os.path.join(dname, "b")
-        os.mkdir(dname)
-        shutil.copyfile(self.FOO, fname)
+def test_add_dir_with_existing_cache(tmp_dir, dvc):
+    tmp_dir.gen({"foo": "foo", "dir": {"file": "foo"}})
 
-        stages = self.dvc.add(self.FOO)
-        self.assertEqual(len(stages), 1)
-        self.assertTrue(stages[0] is not None)
-        stages = self.dvc.add(dname)
-        self.assertEqual(len(stages), 1)
-        self.assertTrue(stages[0] is not None)
+    (stage,) = dvc.add("foo")
+    assert stage is not None
+    (stage,) = dvc.add("dir")
+    assert stage is not None
 
 
-class TestAddModifiedDir(TestDvc):
-    def test(self):
-        stages = self.dvc.add(self.DATA_DIR)
-        self.assertEqual(len(stages), 1)
-        self.assertTrue(stages[0] is not None)
-        os.unlink(self.DATA)
+def test_add_modified_dir(tmp_dir, dvc):
+    tmp_dir.gen("data", {"foo": "foo", "sub": {"bar": "bar"}})
+    (stage,) = dvc.add("data")
+    assert stage is not None
 
-        time.sleep(2)
-
-        stages = self.dvc.add(self.DATA_DIR)
-        self.assertEqual(len(stages), 1)
-        self.assertTrue(stages[0] is not None)
+    (tmp_dir / "data" / "foo").unlink()
+    (stage,) = dvc.add("data")
+    assert stage is not None
 
 
 def test_add_file_in_dir(tmp_dir, dvc):
@@ -326,57 +303,47 @@ def test_add_external_relpath(tmp_dir, dvc, local_cloud):
     assert dvc.status() == {}
 
 
-class TestAddLocalRemoteFile(TestDvc):
-    def test(self):
-        """
-        Making sure that 'remote' syntax is handled properly for local outs.
-        """
-        cwd = os.getcwd()
-        remote = "myremote"
+def test_add_local_remote_file(tmp_dir, dvc):
+    """
+    Making sure that 'remote' syntax is handled properly for local outs.
+    """
+    tmp_dir.gen({"foo": "foo", "bar": "bar"})
+    tmp_dir.add_remote(url=tmp_dir.fs_path, name="myremote")
 
-        ret = main(["remote", "add", remote, cwd])
-        self.assertEqual(ret, 0)
+    assert main(["add", "remote://myremote/foo"]) == 0
+    d = (tmp_dir / "foo.dvc").load_yaml()
+    assert d["outs"][0]["path"] == "remote://myremote/foo"
 
-        self.dvc.config.load()
-
-        foo = f"remote://{remote}/{self.FOO}"
-        ret = main(["add", foo])
-        self.assertEqual(ret, 0)
-
-        d = load_yaml("foo.dvc")
-        self.assertEqual(d["outs"][0]["path"], foo)
-
-        bar = os.path.join(cwd, self.BAR)
-        ret = main(["add", bar])
-        self.assertEqual(ret, 0)
-
-        d = load_yaml("bar.dvc")
-        self.assertEqual(d["outs"][0]["path"], self.BAR)
+    assert main(["add", (tmp_dir / "bar").fs_path]) == 0
+    d = (tmp_dir / "bar.dvc").load_yaml()
+    assert d["outs"][0]["path"] == "bar"
 
 
-class TestCmdAdd(TestDvc):
-    def test(self):
-        ret = main(["add", self.FOO])
-        self.assertEqual(ret, 0)
+def test_cmd_add(tmp_dir, dvc):
+    tmp_dir.gen("foo", "foo")
+    ret = main(["add", "foo"])
+    assert ret == 0
 
-        ret = main(["add", "non-existing-file"])
-        self.assertNotEqual(ret, 0)
+    ret = main(["add", "non-existing-file"])
+    assert ret != 0
 
 
-class TestDoubleAddUnchanged(TestDvc):
-    def test_file(self):
-        ret = main(["add", self.FOO])
-        self.assertEqual(ret, 0)
+def test_double_add_unchanged_file(tmp_dir, dvc):
+    tmp_dir.gen("foo", "foo")
+    ret = main(["add", "foo"])
+    assert ret == 0
 
-        ret = main(["add", self.FOO])
-        self.assertEqual(ret, 0)
+    ret = main(["add", "foo"])
+    assert ret == 0
 
-    def test_dir(self):
-        ret = main(["add", self.DATA_DIR])
-        self.assertEqual(ret, 0)
 
-        ret = main(["add", self.DATA_DIR])
-        self.assertEqual(ret, 0)
+def test_double_add_unchanged_dir(tmp_dir, dvc):
+    tmp_dir.gen("data", {"foo": "foo"})
+    ret = main(["add", "data"])
+    assert ret == 0
+
+    ret = main(["add", "data"])
+    assert ret == 0
 
 
 def test_should_update_state_entry_for_file_after_add(mocker, dvc, tmp_dir):
@@ -443,19 +410,17 @@ def test_should_update_state_entry_for_directory_after_add(
     assert file_md5_counter.mock.call_count == 10
 
 
-class TestAddCommit(TestDvc):
-    def test(self):
-        ret = main(["add", self.FOO, "--no-commit"])
-        self.assertEqual(ret, 0)
-        self.assertTrue(os.path.isfile(self.FOO))
-        self.assertFalse(os.path.exists(self.dvc.odb.local.path))
+def test_add_commit(tmp_dir, dvc):
+    tmp_dir.gen("foo", "foo")
+    ret = main(["add", "foo", "--no-commit"])
+    assert ret == 0
+    assert os.path.isfile("foo")
+    assert not os.path.exists(dvc.odb.local.path)
 
-        ret = main(["commit", self.FOO + ".dvc"])
-        self.assertEqual(ret, 0)
-        self.assertTrue(os.path.isfile(self.FOO))
-        self.assertTrue(
-            self.dvc.odb.local.exists("acbd18db4cc2f85cedef654fccc4a4d8")
-        )
+    ret = main(["commit", "foo" + ".dvc"])
+    assert ret == 0
+    assert os.path.isfile("foo")
+    assert dvc.odb.local.exists("acbd18db4cc2f85cedef654fccc4a4d8")
 
 
 def test_should_collect_dir_cache_only_once(mocker, tmp_dir, dvc):
@@ -474,80 +439,66 @@ def test_should_collect_dir_cache_only_once(mocker, tmp_dir, dvc):
     assert counter.mock.call_count == 5
 
 
-class TestShouldPlaceStageInDataDirIfRepositoryBelowSymlink(TestDvc):
-    def test(self):
-        def is_symlink_true_below_dvc_root(path):
-            if path == os.path.dirname(self.dvc.root_dir):
-                return True
-            return False
+def test_should_place_stage_in_data_dir_if_repository_below_symlink(
+    mocker, tmp_dir, dvc
+):
+    def is_symlink_true_below_dvc_root(path):
+        return path == os.path.dirname(dvc.root_dir)
 
-        with patch.object(
-            system, "is_symlink", side_effect=is_symlink_true_below_dvc_root
-        ):
+    tmp_dir.gen({"data": {"foo": "foo"}})
+    mocker.patch.object(
+        system, "is_symlink", side_effect=is_symlink_true_below_dvc_root
+    )
+    ret = main(["add", os.path.join("data", "foo")])
+    assert ret == 0
 
-            ret = main(["add", self.DATA])
-            self.assertEqual(0, ret)
-
-            stage_file_path_on_data_below_symlink = (
-                os.path.basename(self.DATA) + DVC_FILE_SUFFIX
-            )
-            self.assertFalse(
-                os.path.exists(stage_file_path_on_data_below_symlink)
-            )
-
-            stage_file_path = self.DATA + DVC_FILE_SUFFIX
-            self.assertTrue(os.path.exists(stage_file_path))
+    assert not (tmp_dir / "foo.dvc").exists()
+    assert (tmp_dir / "data" / "foo.dvc").exists()
 
 
-class TestShouldThrowProperExceptionOnCorruptedStageFile(TestDvc):
-    def test(self):
-        ret = main(["add", self.FOO])
-        assert 0 == ret
+def test_should_throw_proper_exception_on_corrupted_stage_file(
+    caplog, tmp_dir, dvc
+):
+    tmp_dir.gen({"foo": "foo", "bar": " bar"})
+    assert main(["add", "foo"]) == 0
 
-        foo_stage = relpath(self.FOO + DVC_FILE_SUFFIX)
+    with (tmp_dir / "foo.dvc").open("a+") as f:
+        f.write("this will break yaml file structure")
 
-        # corrupt stage file
-        with open(foo_stage, "a+", encoding="utf-8") as file:
-            file.write("this will break yaml file structure")
-
-        self._caplog.clear()
-
-        ret = main(["add", self.BAR])
-        assert 1 == ret
-
-        expected_error = (
-            f"unable to read: '{foo_stage}', YAML file structure is corrupted"
-        )
-
-        assert expected_error in self._caplog.text
+    caplog.clear()
+    assert main(["add", "bar"]) == 1
+    expected_error = (
+        "unable to read: 'foo.dvc', YAML file structure is corrupted"
+    )
+    assert expected_error in caplog.text
 
 
-class TestAddFilename(TestDvc):
-    def test(self):
-        ret = main(["add", self.FOO, self.BAR, "--file", "error.dvc"])
-        self.assertNotEqual(0, ret)
+def test_add_filename(tmp_dir, dvc):
+    tmp_dir.gen({"foo": "foo", "bar": "bar", "data": {"file": "file"}})
+    ret = main(["add", "foo", "bar", "--file", "error.dvc"])
+    assert ret != 0
 
-        ret = main(["add", "-R", self.DATA_DIR, "--file", "error.dvc"])
-        self.assertNotEqual(0, ret)
+    ret = main(["add", "-R", "data", "--file", "error.dvc"])
+    assert ret != 0
 
-        with self.assertRaises(RecursiveAddingWhileUsingFilename):
-            self.dvc.add(self.DATA_DIR, recursive=True, fname="error.dvc")
+    with pytest.raises(RecursiveAddingWhileUsingFilename):
+        dvc.add("data", recursive=True, fname="error.dvc")
 
-        ret = main(["add", self.DATA_DIR, "--file", "data_directory.dvc"])
-        self.assertEqual(0, ret)
-        self.assertTrue(os.path.exists("data_directory.dvc"))
+    ret = main(["add", "data", "--file", "data_directory.dvc"])
+    assert ret == 0
+    assert (tmp_dir / "data_directory.dvc").exists()
 
-        ret = main(["add", self.FOO, "--file", "bar.dvc"])
-        self.assertEqual(0, ret)
-        self.assertTrue(os.path.exists("bar.dvc"))
-        self.assertFalse(os.path.exists("foo.dvc"))
+    ret = main(["add", "foo", "--file", "bar.dvc"])
+    assert ret == 0
+    assert (tmp_dir / "bar.dvc").exists()
+    assert not (tmp_dir / "foo.dvc").exists()
 
-        os.remove("bar.dvc")
+    (tmp_dir / "bar.dvc").unlink()
 
-        ret = main(["add", self.FOO, "--file", "bar.dvc"])
-        self.assertEqual(0, ret)
-        self.assertTrue(os.path.exists("bar.dvc"))
-        self.assertFalse(os.path.exists("foo.dvc"))
+    ret = main(["add", "foo", "--file", "bar.dvc"])
+    assert ret == 0
+    assert (tmp_dir / "bar.dvc").exists()
+    assert not (tmp_dir / "foo.dvc").exists()
 
 
 def test_failed_add_cleanup(tmp_dir, scm, dvc):
@@ -577,25 +528,25 @@ def test_should_not_track_git_internal_files(mocker, dvc, tmp_dir):
         assert ".git" not in fname
 
 
-class TestAddUnprotected(TestDvc):
-    def test(self):
-        ret = main(["config", "cache.type", "hardlink"])
-        self.assertEqual(ret, 0)
+def test_add_unprotected(tmp_dir, dvc):
+    tmp_dir.gen("foo", "foo")
+    ret = main(["config", "cache.type", "hardlink"])
+    assert ret == 0
 
-        ret = main(["add", self.FOO])
-        self.assertEqual(ret, 0)
+    ret = main(["add", "foo"])
+    assert ret == 0
 
-        self.assertFalse(os.access(self.FOO, os.W_OK))
-        self.assertTrue(system.is_hardlink(self.FOO))
+    assert not os.access("foo", os.W_OK)
+    assert system.is_hardlink("foo")
 
-        ret = main(["unprotect", self.FOO])
-        self.assertEqual(ret, 0)
+    ret = main(["unprotect", "foo"])
+    assert ret == 0
 
-        ret = main(["add", self.FOO])
-        self.assertEqual(ret, 0)
+    ret = main(["add", "foo"])
+    assert ret == 0
 
-        self.assertFalse(os.access(self.FOO, os.W_OK))
-        self.assertTrue(system.is_hardlink(self.FOO))
+    assert not os.access("foo", os.W_OK)
+    assert system.is_hardlink("foo")
 
 
 @pytest.fixture

tests/func/test_analytics.py

@@ -12,7 +12,7 @@ from tests.utils import ANY
 def test_daemon_analytics(mocker, tmp_path):
     mock_send = mocker.patch("dvc.analytics.send")
     report = os.fspath(tmp_path)
-    assert 0 == main(["daemon", "analytics", report])
+    assert main(["daemon", "analytics", report]) == 0
 
     mock_send.assert_called_with(report)
 
@@ -21,7 +21,7 @@ def test_main_analytics(mocker, tmp_dir, dvc):
     mock_is_enabled = mocker.patch("dvc.analytics.collect_and_send_report")
     mock_report = mocker.patch("dvc.analytics.is_enabled", return_value=True)
     tmp_dir.gen("foo", "text")
-    assert 0 == main(["add", "foo"])
+    assert main(["add", "foo"]) == 0
     assert mock_is_enabled.called
     assert mock_report.called
 

tests/func/test_checkout.py

@@ -1,16 +1,13 @@
-import collections
-import filecmp
 import logging
 import os
 import shutil
 import stat
 import textwrap
-from unittest.mock import patch
 
 import pytest
 
 from dvc.cli import main
-from dvc.dvcfile import DVC_FILE_SUFFIX, PIPELINE_FILE, Dvcfile
+from dvc.dvcfile import PIPELINE_FILE, Dvcfile
 from dvc.exceptions import (
     CheckoutError,
     CheckoutErrorSuggestGit,
@@ -24,8 +21,7 @@ from dvc.stage.exceptions import StageFileDoesNotExistError
 from dvc.utils import relpath
 from dvc.utils.fs import remove
 from dvc.utils.serialize import dump_yaml, load_yaml
-from tests.basic_env import TestDvc, TestDvcGit
-from tests.func.test_repro import TestRepro
+from tests.utils import get_gitignore_content
 
 logger = logging.getLogger("dvc")
 
@@ -36,465 +32,365 @@ def walk_files(directory):
             yield os.path.join(root, f)
 
 
-class TestCheckout(TestRepro):
-    def setUp(self):
-        super().setUp()
+def test_checkout(tmp_dir, dvc, copy_script):
+    tmp_dir.dvc_gen({"foo": "foo", "data": {"file": "file"}})
+    dvc.run(
+        fname="file1.dvc",
+        outs=["file1"],
+        deps=["foo", "copy.py"],
+        cmd="python copy.py foo file1",
+        single_stage=True,
+    )
+    remove(tmp_dir / "foo")
+    remove("data")
 
-        stages = self.dvc.add(self.DATA_DIR)
-        self.assertEqual(len(stages), 1)
-        self.data_dir_stage = stages[0]
-        self.assertTrue(self.data_dir_stage is not None)
-
-        self.orig = "orig"
-        shutil.copy(self.FOO, self.orig)
-        os.unlink(self.FOO)
-
-        self.orig_dir = "orig_dir"
-        shutil.copytree(self.DATA_DIR, self.orig_dir)
-        shutil.rmtree(self.DATA_DIR)
-
-    def test(self):
-        self.dvc.checkout(force=True)
-        self._test_checkout()
-
-    def _test_checkout(self):
-        self.assertTrue(os.path.isfile(self.FOO))
-        self.assertTrue(filecmp.cmp(self.FOO, self.orig, shallow=False))
+    dvc.checkout(force=True)
+    assert (tmp_dir / "foo").read_text() == "foo"
+    assert (tmp_dir / "data").read_text() == {"file": "file"}
 
 
-class TestCheckoutSingleStage(TestCheckout):
-    def test(self):
-        ret = main(["checkout", "--force", self.foo_stage.path])
-        self.assertEqual(ret, 0)
+def test_checkout_cli(tmp_dir, dvc, copy_script):
+    tmp_dir.dvc_gen({"foo": "foo", "data": {"file": "file"}})
+    dvc.run(
+        fname="file1.dvc",
+        outs=["file1"],
+        deps=["foo", "copy.py"],
+        cmd="python copy.py foo file1",
+        single_stage=True,
+    )
+    remove(tmp_dir / "foo")
+    remove("data")
 
-        ret = main(["checkout", "--force", self.data_dir_stage.path])
-        self.assertEqual(ret, 0)
+    assert main(["checkout", "--force"]) == 0
+    assert (tmp_dir / "foo").read_text() == "foo"
+    assert (tmp_dir / "data").read_text() == {"file": "file"}
 
-        self._test_checkout()
+    remove(tmp_dir / "foo")
+    remove("data")
+
+    assert main(["checkout", "--force", "foo.dvc"]) == 0
+    assert main(["checkout", "--force", "data.dvc"]) == 0
+    assert (tmp_dir / "foo").read_text() == "foo"
+    assert (tmp_dir / "data").read_text() == {"file": "file"}
 
 
-class TestCheckoutCorruptedCacheFile(TestRepro):
-    def test(self):
-        cache = self.foo_stage.outs[0].cache_path
+def test_checkout_corrupted_cache_file(tmp_dir, dvc):
+    (foo_stage,) = tmp_dir.dvc_gen("foo", "foo")
+    cache = foo_stage.outs[0].cache_path
 
-        os.chmod(cache, 0o644)
-        with open(cache, "a", encoding="utf-8") as fd:
-            fd.write("1")
+    os.chmod(cache, 0o644)
+    with open(cache, "a", encoding="utf-8") as fd:
+        fd.write("1")
 
-        with pytest.raises(CheckoutError):
-            self.dvc.checkout(force=True)
+    with pytest.raises(CheckoutError):
+        dvc.checkout(force=True)
 
-        self.assertFalse(os.path.isfile(self.FOO))
-        self.assertFalse(os.path.isfile(cache))
+    assert not os.path.isfile("foo")
+    assert not os.path.isfile(cache)
 
 
-class TestCheckoutCorruptedCacheDir(TestDvc):
-    def test(self):
-        from dvc_data.hashfile import load
+def test_checkout_corrupted_cache_dir(tmp_dir, dvc):
+    from dvc_data.hashfile import load
 
-        # NOTE: using 'copy' so that cache and link don't have same inode
-        ret = main(["config", "cache.type", "copy"])
-        self.assertEqual(ret, 0)
+    tmp_dir.gen("data", {"foo": "foo", "bar": "bar"})
+    # NOTE: using 'copy' so that cache and link don't have same inode
+    ret = main(["config", "cache.type", "copy"])
+    assert ret == 0
 
-        self.dvc.config.load()
+    dvc.config.load()
 
-        stages = self.dvc.add(self.DATA_DIR)
-        self.assertEqual(len(stages), 1)
-        self.assertEqual(len(stages[0].outs), 1)
-        out = stages[0].outs[0]
+    stages = dvc.add("data")
+    assert len(stages) == 1
+    assert len(stages[0].outs) == 1
+    out = stages[0].outs[0]
 
-        # NOTE: modifying cache file for one of the files inside the directory
-        # to check if dvc will detect that the cache is corrupted.
-        obj = load(self.dvc.odb.local, out.hash_info)
-        _, _, entry_oid = list(obj)[0]
-        cache = self.dvc.odb.local.oid_to_path(entry_oid.value)
+    # NOTE: modifying cache file for one of the files inside the directory
+    # to check if dvc will detect that the cache is corrupted.
+    obj = load(dvc.odb.local, out.hash_info)
+    _, _, entry_oid = list(obj)[0]
+    cache = dvc.odb.local.oid_to_path(entry_oid.value)
 
-        os.chmod(cache, 0o644)
-        with open(cache, "w+", encoding="utf-8") as fobj:
-            fobj.write("1")
+    os.chmod(cache, 0o644)
+    with open(cache, "w+", encoding="utf-8") as fobj:
+        fobj.write("1")
 
-        with pytest.raises(CheckoutError):
-            self.dvc.checkout(force=True)
+    with pytest.raises(CheckoutError):
+        dvc.checkout(force=True)
 
-        self.assertFalse(os.path.exists(cache))
+    assert not os.path.exists(cache)
 
 
-class TestCmdCheckout(TestCheckout):
-    def test(self):
-        ret = main(["checkout", "--force"])
-        self.assertEqual(ret, 0)
-        self._test_checkout()
+def test_remove_files_when_checkout(tmp_dir, dvc, scm):
+    # add the file into a separate branch
+    scm.checkout("branch", True)
+    ret = main(["checkout", "--force"])
+    assert ret == 0
+    tmp_dir.dvc_gen("file_in_a_branch", "random text", commit="add file")
+
+    # Checkout back in master
+    scm.checkout("master")
+    assert os.path.exists("file_in_a_branch")
+
+    # Make sure `dvc checkout` removes the file
+    # self.dvc.checkout()
+    ret = main(["checkout", "--force"])
+    assert ret == 0
+    assert not os.path.exists("file_in_a_branch")
 
 
-class CheckoutBase(TestDvcGit):
-    GIT_IGNORE = ".gitignore"
-
-    def commit_data_file(self, fname, content="random text"):
-        with open(fname, "w", encoding="utf-8") as fd:
-            fd.write(content)
-        stages = self.dvc.add(fname)
-        self.assertEqual(len(stages), 1)
-        self.assertTrue(stages[0] is not None)
-        self.dvc.scm.add([fname + ".dvc", ".gitignore"])
-        self.dvc.scm.commit("adding " + fname)
-
-    def read_ignored(self):
-        with open(self.GIT_IGNORE, encoding="utf-8") as f:
-            return [s.strip("\n") for s in f.readlines()]
-
-    def outs_info(self, stage):
-        FileInfo = collections.namedtuple("FileInfo", "path inode")
-
-        paths = [
-            path
-            for output in stage["outs"]
-            for path in self.dvc.fs.find(output["path"])
-        ]
-
-        return [
-            FileInfo(path=path, inode=system.inode(path)) for path in paths
-        ]
-
-
-class TestRemoveFilesWhenCheckout(CheckoutBase):
-    def test(self):
-        fname = "file_in_a_branch"
-        branch_master = "master"
-        branch_1 = "b1"
-
-        self.dvc.scm.add(self.dvc.scm.untracked_files())
-        self.dvc.scm.commit("add all files")
-
-        # add the file into a separate branch
-        self.dvc.scm.checkout(branch_1, True)
-        ret = main(["checkout", "--force"])
-        self.assertEqual(ret, 0)
-        self.commit_data_file(fname)
-
-        # Checkout back in master
-        self.dvc.scm.checkout(branch_master)
-        self.assertTrue(os.path.exists(fname))
-
-        # Make sure `dvc checkout` removes the file
-        # self.dvc.checkout()
-        ret = main(["checkout", "--force"])
-        self.assertEqual(ret, 0)
-        self.assertFalse(os.path.exists(fname))
-
-
-class TestCheckoutCleanWorkingDir(CheckoutBase):
-    @patch("dvc.prompt.confirm", return_value=True)
-    def test(self, mock_prompt):
-        mock_prompt.return_value = True
-
-        stages = self.dvc.add(self.DATA_DIR)
-        stage = stages[0]
-
-        working_dir_change = os.path.join(self.DATA_DIR, "not_cached.txt")
-        with open(working_dir_change, "w", encoding="utf-8") as f:
-            f.write("not_cached")
-
-        ret = main(["checkout", stage.relpath])
-        self.assertEqual(ret, 0)
-        self.assertFalse(os.path.exists(working_dir_change))
-
-    @patch("dvc.prompt.confirm", return_value=False)
-    def test_force(self, mock_prompt):
-        mock_prompt.return_value = False
-
-        stages = self.dvc.add(self.DATA_DIR)
-        self.assertEqual(len(stages), 1)
-        stage = stages[0]
-
-        working_dir_change = os.path.join(self.DATA_DIR, "not_cached.txt")
-        with open(working_dir_change, "w", encoding="utf-8") as f:
-            f.write("not_cached")
-
-        ret = main(["checkout", stage.relpath])
-        self.assertNotEqual(ret, 0)
+class TestCheckoutCleanWorkingDir:
+    def test(self, mocker, tmp_dir, dvc):  # pylint: disable=unused-argument
+        mock_prompt = mocker.patch("dvc.prompt.confirm", return_value=True)
+        (stage,) = tmp_dir.dvc_gen("data", {"foo": "foo"})
 
+        # change working directory
+        (tmp_dir / "data").gen("not_cached.txt", "not_cached")
+        assert main(["checkout", stage.relpath]) == 0
         mock_prompt.assert_called()
-        self.assertNotEqual(ret, 0)
-        self.assertRaises(DvcException)
+        assert not (tmp_dir / "data" / "not_cached.txt").exists()
 
+    def test_force(self, mocker, tmp_dir, dvc):
+        mock_prompt = mocker.patch("dvc.prompt.confirm", return_value=False)
+        (stage,) = tmp_dir.dvc_gen("data", {"foo": "foo"})
+
+        # change working directory
+        (tmp_dir / "data").gen("not_cached.txt", "not_cached")
+        assert main(["checkout", stage.relpath]) != 0
+        mock_prompt.assert_called()
+        assert (tmp_dir / "data" / "not_cached.txt").exists()
+
+
+def test_checkout_selective_remove(tmp_dir, dvc):
+    # Use copy to test for changes in the inodes
+    dvc.odb.local.cache_types = ["copy"]
+    tmp_dir.dvc_gen({"data": {"foo": "foo", "bar": "bar"}})
+
+    foo_inode = system.inode(os.path.join("data", "foo"))
+    bar_inode = system.inode(os.path.join("data", "bar"))
+    # move instead of remove, to lock inode assigned to stage_files[0].path
+    # if we were to use remove, we might end up with same inode assigned to
+    # newly checked out file
+    shutil.move(os.path.join("data", "foo"), "random_name")
+
+    assert main(["checkout", "--force", "data.dvc"]) == 0
+    assert (tmp_dir / "data").read_text() == {"foo": "foo", "bar": "bar"}
+    assert system.inode(os.path.join("data", "foo")) != foo_inode
+    assert system.inode(os.path.join("data", "bar")) == bar_inode
+
+
+def test_gitignore_basic(tmp_dir, dvc, scm):
+    tmp_dir.gen("foo", "foo")
+    assert not os.path.exists(scm.GITIGNORE)
+
+    tmp_dir.dvc_gen("file1", "random text1", commit="add file1")
+    tmp_dir.dvc_gen("file2", "random text2", commit="add file2")
+    dvc.run(
+        single_stage=True,
+        cmd="cp foo file3",
+        deps=["foo"],
+        outs_no_cache=["file3"],
+    )
+    assert get_gitignore_content() == ["/file1", "/file2"]
+
+
+def test_gitignore_when_checkout(tmp_dir, dvc, scm):
+    tmp_dir.dvc_gen("file_in_a_master", "master", commit="master")
 
-class TestCheckoutSelectiveRemove(CheckoutBase):
-    def test(self):
-        # Use copy to test for changes in the inodes
-        ret = main(["config", "cache.type", "copy"])
-        self.assertEqual(ret, 0)
+    scm.checkout("branch", True)
+    ret = main(["checkout", "--force"])
+    assert ret == 0
+    tmp_dir.dvc_gen("file_in_a_branch", "branch", commit="branch")
+
+    scm.checkout("master")
+    ret = main(["checkout", "--force"])
+    assert ret == 0
+
+    ignored = get_gitignore_content()
+
+    assert len(ignored) == 1
+    assert "/file_in_a_master" in ignored
 
-        ret = main(["add", self.DATA_DIR])
-        self.assertEqual(0, ret)
+    scm.checkout("branch")
+    ret = main(["checkout", "--force"])
+    assert ret == 0
+    ignored = get_gitignore_content()
+    assert "/file_in_a_branch" in ignored
+
+
+def test_checkout_missing_md5_in_stage_file(tmp_dir, dvc, copy_script):
+    tmp_dir.dvc_gen({"foo": "foo", "data": {"file": "file"}})
+    stage = dvc.run(
+        fname="file1.dvc",
+        outs=["file1"],
+        deps=["foo", "copy.py"],
+        cmd="python copy.py foo file1",
+        single_stage=True,
+    )
+    d = load_yaml(stage.relpath)
+    del d[Stage.PARAM_OUTS][0][LocalFileSystem.PARAM_CHECKSUM]
+    del d[Stage.PARAM_DEPS][0][LocalFileSystem.PARAM_CHECKSUM]
+    dump_yaml(stage.relpath, d)
+
+    with pytest.raises(CheckoutError):
+        dvc.checkout(force=True)
+
+
+def test_checkout_empty_dir(tmp_dir, dvc):
+    empty_dir = tmp_dir / "empty_dir"
+    empty_dir.mkdir()
+    (stage,) = dvc.add("empty_dir")
+
+    stage.outs[0].remove()
+    assert not empty_dir.exists()
+
+    stats = dvc.checkout(force=True)
+    assert stats["added"] == [os.path.join("empty_dir", "")]
+    assert empty_dir.is_dir()
+    assert not list(empty_dir.iterdir())
+
+
+def test_checkout_not_cached_file(tmp_dir, dvc):
+    tmp_dir.dvc_gen("foo", "foo")
+    dvc.run(
+        cmd="cp foo bar",
+        deps=["foo"],
+        outs_no_cache=["bar"],
+        single_stage=True,
+    )
+    stats = dvc.checkout(force=True)
+    assert not any(stats.values())
+
+
+def test_checkout_with_deps_cli(tmp_dir, dvc, copy_script):
+    tmp_dir.dvc_gen({"foo": "foo", "data": {"file": "file"}})
+    dvc.run(
+        fname="file1.dvc",
+        outs=["file1"],
+        deps=["foo", "copy.py"],
+        cmd="python copy.py foo file1",
+        single_stage=True,
+    )
+    remove("foo")
+    remove("file1")
+
+    assert not os.path.exists("foo")
+    assert not os.path.exists("file1")
 
-        stage_path = self.DATA_DIR + DVC_FILE_SUFFIX
-        stage = load_yaml(stage_path)
-        staged_files = self.outs_info(stage)
+    ret = main(["checkout", "--force", "file1.dvc", "--with-deps"])
+    assert ret == 0
+
+    assert os.path.exists("foo")
+    assert os.path.exists("file1")
 
-        # move instead of remove, to lock inode assigned to stage_files[0].path
-        # if we were to use remove, we might end up with same inode assigned to
-        # newly checked out file
-        shutil.move(staged_files[0].path, "random_name")
 
-        ret = main(["checkout", "--force", stage_path])
-        self.assertEqual(ret, 0)
+def test_checkout_directory(tmp_dir, dvc):
+    (stage,) = tmp_dir.dvc_gen({"data": {"foo": "foo", "bar": "bar"}})
+
+    remove("data")
+    assert not os.path.exists("data")
 
-        checkedout_files = self.outs_info(stage)
+    ret = main(["checkout", stage.path])
+    assert ret == 0
 
-        self.assertEqual(len(staged_files), len(checkedout_files))
-        self.assertEqual(staged_files[0].path, checkedout_files[0].path)
-        self.assertNotEqual(staged_files[0].inode, checkedout_files[0].inode)
-        self.assertEqual(staged_files[1].inode, checkedout_files[1].inode)
+    assert os.path.exists("data")
 
 
-class TestGitIgnoreBasic(CheckoutBase):
-    def test(self):
-        fname1 = "file_1"
-        fname2 = "file_2"
-        fname3 = "file_3"
+def test_checkout_hook(mocker, tmp_dir, dvc):
+    """Test that dvc checkout handles EOFError gracefully, which is what
+    it will experience when running in a git hook.
+    """
+    tmp_dir.dvc_gen({"data": {"foo": "foo"}})
+    mocker.patch("sys.stdout.isatty", return_value=True)
+    mocker.patch("dvc.prompt.input", side_effect=EOFError)
 
-        self.dvc.scm.add(self.dvc.scm.untracked_files())
-        self.dvc.scm.commit("add all files")
+    (tmp_dir / "data").gen("test", "test")
+    with pytest.raises(ConfirmRemoveError):
+        dvc.checkout()
 
-        self.assertFalse(os.path.exists(self.GIT_IGNORE))
 
-        self.commit_data_file(fname1)
-        self.commit_data_file(fname2)
-        self.dvc.run(
-            single_stage=True,
-            cmd=f"python {self.CODE} {self.FOO} {fname3}",
-            deps=[self.CODE, self.FOO],
-            outs_no_cache=[fname3],
-        )
+def test_checkout_suggest_git(tmp_dir, dvc, scm):
+    # pylint: disable=no-member
+    tmp_dir.dvc_gen("foo", "foo")
+    try:
+        dvc.checkout(targets="gitbranch")
+    except DvcException as exc:
+        assert isinstance(exc, CheckoutErrorSuggestGit)
+        assert isinstance(exc.__cause__, NoOutputOrStageError)
+        assert isinstance(exc.__cause__.__cause__, StageFileDoesNotExistError)
+
+    try:
+        dvc.checkout(targets="foo")
+    except DvcException as exc:
+        assert isinstance(exc, CheckoutErrorSuggestGit)
+        assert isinstance(exc.__cause__, NoOutputOrStageError)
+        assert exc.__cause__.__cause__ is None
+
+    try:
+        dvc.checkout(targets="looks-like-dvcfile.dvc")
+    except DvcException as exc:
+        assert isinstance(exc, CheckoutErrorSuggestGit)
+        assert isinstance(exc.__cause__, StageFileDoesNotExistError)
+        assert exc.__cause__.__cause__ is None
 
-        self.assertTrue(os.path.exists(self.GIT_IGNORE))
 
-        ignored = self.read_ignored()
+def test_checkout_target_recursive_should_not_remove_other_used_files(
+    tmp_dir, dvc
+):
+    tmp_dir.dvc_gen({"foo": "foo", "bar": "bar", "data": {"file": "file"}})
+    assert main(["checkout", "-R", "data"]) == 0
+    assert (tmp_dir / "foo").exists()
+    assert (tmp_dir / "bar").exists()
 
-        self.assertEqual(len(ignored), 2)
 
-        self.assertIn("/" + fname1, ignored)
-        self.assertIn("/" + fname2, ignored)
+def test_checkout_recursive_not_directory(tmp_dir, dvc):
+    tmp_dir.gen("foo", "foo")
+    ret = main(["add", "foo"])
+    assert ret == 0
 
+    stats = dvc.checkout(targets=["foo" + ".dvc"], recursive=True)
+    assert stats == {"added": [], "modified": [], "deleted": []}
 
-class TestGitIgnoreWhenCheckout(CheckoutBase):
-    def test(self):
-        fname_master = "file_in_a_master"
-        branch_master = "master"
-        fname_branch = "file_in_a_branch"
-        branch_1 = "b1"
 
-        self.dvc.scm.add(self.dvc.scm.untracked_files())
-        self.dvc.scm.commit("add all files")
-        self.commit_data_file(fname_master)
+def test_checkout_moved_cache_dir_with_symlinks(tmp_dir, dvc):
+    tmp_dir.gen({"foo": "foo", "data": {"file": "file"}})
+    ret = main(["config", "cache.type", "symlink"])
+    assert ret == 0
 
-        self.dvc.scm.checkout(branch_1, True)
-        ret = main(["checkout", "--force"])
-        self.assertEqual(ret, 0)
-        self.commit_data_file(fname_branch)
+    ret = main(["add", "foo"])
+    assert ret == 0
 
-        self.dvc.scm.checkout(branch_master)
-        ret = main(["checkout", "--force"])
-        self.assertEqual(ret, 0)
+    ret = main(["add", "data"])
+    assert ret == 0
 
-        ignored = self.read_ignored()
+    assert system.is_symlink("foo")
+    old_foo_link = os.path.realpath("foo")
 
-        self.assertEqual(len(ignored), 1)
-        self.assertIn("/" + fname_master, ignored)
+    assert system.is_symlink(os.path.join("data", "file"))
+    old_data_link = os.path.realpath(os.path.join("data", "file"))
 
-        self.dvc.scm.checkout(branch_1)
-        ret = main(["checkout", "--force"])
-        self.assertEqual(ret, 0)
-        ignored = self.read_ignored()
-        self.assertIn("/" + fname_branch, ignored)
+    old_cache_dir = dvc.odb.local.path
+    new_cache_dir = old_cache_dir + "_new"
+    os.rename(old_cache_dir, new_cache_dir)
 
+    ret = main(["cache", "dir", new_cache_dir])
+    assert ret == 0
 
-class TestCheckoutMissingMd5InStageFile(TestRepro):
-    def test(self):
-        d = load_yaml(self.file1_stage)
-        del d[Stage.PARAM_OUTS][0][LocalFileSystem.PARAM_CHECKSUM]
-        del d[Stage.PARAM_DEPS][0][LocalFileSystem.PARAM_CHECKSUM]
-        dump_yaml(self.file1_stage, d)
+    ret = main(["checkout", "-f"])
+    assert ret == 0
 
-        with pytest.raises(CheckoutError):
-            self.dvc.checkout(force=True)
+    assert system.is_symlink("foo")
+    new_foo_link = os.path.realpath("foo")
 
+    assert system.is_symlink(os.path.join("data", "file"))
+    new_data_link = os.path.realpath(os.path.join("data", "file"))
 
-class TestCheckoutEmptyDir(TestDvc):
-    def test(self):
-        dname = "empty_dir"
-        os.mkdir(dname)
+    assert relpath(old_foo_link, old_cache_dir) == relpath(
+        new_foo_link, new_cache_dir
+    )
 
-        stages = self.dvc.add(dname)
-        self.assertEqual(len(stages), 1)
-        stage = stages[0]
-        self.assertTrue(stage is not None)
-        self.assertEqual(len(stage.outs), 1)
-
-        stage.outs[0].remove()
-        self.assertFalse(os.path.exists(dname))
-
-        stats = self.dvc.checkout(force=True)
-        assert stats["added"] == [dname + os.sep]
-
-        self.assertTrue(os.path.isdir(dname))
-        self.assertEqual(len(os.listdir(dname)), 0)
-
-
-class TestCheckoutNotCachedFile(TestDvc):
-    def test(self):
-        cmd = "python {} {} {}".format(self.CODE, self.FOO, "out")
-
-        self.dvc.add(self.FOO)
-        stage = self.dvc.run(
-            cmd=cmd,
-            deps=[self.FOO, self.CODE],
-            outs_no_cache=["out"],
-            single_stage=True,
-        )
-        self.assertTrue(stage is not None)
-
-        stats = self.dvc.checkout(force=True)
-        assert not any(stats.values())
-
-
-class TestCheckoutWithDeps(TestRepro):
-    def test(self):
-        os.unlink(self.FOO)
-        os.unlink(self.file1)
-
-        self.assertFalse(os.path.exists(self.FOO))
-        self.assertFalse(os.path.exists(self.file1))
-
-        ret = main(["checkout", "--force", self.file1_stage, "--with-deps"])
-        self.assertEqual(ret, 0)
-
-        self.assertTrue(os.path.exists(self.FOO))
-        self.assertTrue(os.path.exists(self.file1))
-
-
-class TestCheckoutDirectory(TestRepro):
-    def test(self):
-        stage = self.dvc.add(self.DATA_DIR)[0]
-
-        shutil.rmtree(self.DATA_DIR)
-        self.assertFalse(os.path.exists(self.DATA_DIR))
-
-        ret = main(["checkout", stage.path])
-        self.assertEqual(ret, 0)
-
-        self.assertTrue(os.path.exists(self.DATA_DIR))
-
-
-class TestCheckoutHook(TestDvc):
-    @patch("sys.stdout.isatty", return_value=True)
-    @patch("dvc.prompt.input", side_effect=EOFError)
-    def test(self, _mock_input, _mock_isatty):
-        """Test that dvc checkout handles EOFError gracefully, which is what
-        it will experience when running in a git hook.
-        """
-        stages = self.dvc.add(self.DATA_DIR)
-        self.assertEqual(len(stages), 1)
-        stage = stages[0]
-        self.assertNotEqual(stage, None)
-
-        self.create(os.path.join(self.DATA_DIR, "test"), "test")
-
-        with self.assertRaises(ConfirmRemoveError):
-            self.dvc.checkout()
-
-
-class TestCheckoutSuggestGit(TestRepro):
-    def test(self):
-        # pylint: disable=no-member
-
-        try:
-            self.dvc.checkout(targets="gitbranch")
-        except DvcException as exc:
-            self.assertIsInstance(exc, CheckoutErrorSuggestGit)
-            self.assertIsInstance(exc.__cause__, NoOutputOrStageError)
-            self.assertIsInstance(
-                exc.__cause__.__cause__, StageFileDoesNotExistError
-            )
-
-        try:
-            self.dvc.checkout(targets=self.FOO)
-        except DvcException as exc:
-            self.assertIsInstance(exc, CheckoutErrorSuggestGit)
-            self.assertIsInstance(exc.__cause__, NoOutputOrStageError)
-            self.assertIsNone(exc.__cause__.__cause__)
-
-        try:
-            self.dvc.checkout(targets="looks-like-dvcfile.dvc")
-        except DvcException as exc:
-            self.assertIsInstance(exc, CheckoutErrorSuggestGit)
-            self.assertIsInstance(exc.__cause__, StageFileDoesNotExistError)
-            self.assertIsNone(exc.__cause__.__cause__)
-
-
-class TestCheckoutTargetRecursiveShouldNotRemoveOtherUsedFiles(TestDvc):
-    def test(self):
-        ret = main(["add", self.DATA_DIR, self.FOO, self.BAR])
-        self.assertEqual(0, ret)
-
-        ret = main(["checkout", "-R", self.DATA_DIR])
-        self.assertEqual(0, ret)
-
-        self.assertTrue(os.path.exists(self.FOO))
-        self.assertTrue(os.path.exists(self.BAR))
-
-
-class TestCheckoutRecursiveNotDirectory(TestDvc):
-    def test(self):
-        ret = main(["add", self.FOO])
-        self.assertEqual(0, ret)
-
-        stats = self.dvc.checkout(targets=[self.FOO + ".dvc"], recursive=True)
-        assert stats == {"added": [], "modified": [], "deleted": []}
-
-
-class TestCheckoutMovedCacheDirWithSymlinks(TestDvc):
-    def test(self):
-        ret = main(["config", "cache.type", "symlink"])
-        self.assertEqual(ret, 0)
-
-        ret = main(["add", self.FOO])
-        self.assertEqual(ret, 0)
-
-        ret = main(["add", self.DATA_DIR])
-        self.assertEqual(ret, 0)
-
-        self.assertTrue(system.is_symlink(self.FOO))
-        old_foo_link = os.path.realpath(self.FOO)
-
-        self.assertTrue(system.is_symlink(self.DATA))
-        old_data_link = os.path.realpath(self.DATA)
-
-        old_cache_dir = self.dvc.odb.local.path
-        new_cache_dir = old_cache_dir + "_new"
-        os.rename(old_cache_dir, new_cache_dir)
-
-        ret = main(["cache", "dir", new_cache_dir])
-        self.assertEqual(ret, 0)
-
-        ret = main(["checkout", "-f"])
-        self.assertEqual(ret, 0)
-
-        self.assertTrue(system.is_symlink(self.FOO))
-        new_foo_link = os.path.realpath(self.FOO)
-
-        self.assertTrue(system.is_symlink(self.DATA))
-        new_data_link = os.path.realpath(self.DATA)
-
-        self.assertEqual(
-            relpath(old_foo_link, old_cache_dir),
-            relpath(new_foo_link, new_cache_dir),
-        )
-
-        self.assertEqual(
-            relpath(old_data_link, old_cache_dir),
-            relpath(new_data_link, new_cache_dir),
-        )
+    assert relpath(old_data_link, old_cache_dir) == relpath(
+        new_data_link, new_cache_dir
+    )
 
 
 def test_checkout_no_checksum(tmp_dir, dvc):

tests/func/test_cli.py

@@ -1,5 +1,7 @@
 import os
 
+import pytest
+
 from dvc.cli import DvcParserError, parse_args
 from dvc.cli.command import CmdBase
 from dvc.commands.add import CmdAdd
@@ -12,200 +14,188 @@ from dvc.commands.repro import CmdRepro
 from dvc.commands.run import CmdRun
 from dvc.commands.status import CmdDataStatus
 from dvc.exceptions import DvcException
-from tests.basic_env import TestDvc
 
 
-class TestArgParse(TestDvc):
-    def test(self):
-        args = parse_args(["init"])
-        self.assertIsInstance(args.func(args), CmdInit)
+def test_argparse(dvc):
+    args = parse_args(["init"])
+    assert isinstance(args.func(args), CmdInit)
 
 
-class TestRun(TestDvc):
-    def test(self):
-        dep1 = "dep1"
-        dep2 = "dep2"
+def test_run(dvc):
+    dep1 = "dep1"
+    dep2 = "dep2"
 
-        out1 = "out1"
-        out2 = "out2"
+    out1 = "out1"
+    out2 = "out2"
 
-        out_no_cache1 = "out_no_cache1"
-        out_no_cache2 = "out_no_cache2"
+    out_no_cache1 = "out_no_cache1"
+    out_no_cache2 = "out_no_cache2"
 
-        fname = "dvc.dvc"
-        cmd = "cmd"
-        arg1 = "arg1"
-        arg2 = "arg2"
+    fname = "dvc.dvc"
+    cmd = "cmd"
+    arg1 = "arg1"
+    arg2 = "arg2"
 
-        args = parse_args(
-            [
-                "run",
-                "-d",
-                dep1,
-                "--deps",
-                dep2,
-                "-o",
-                out1,
-                "--outs",
-                out2,
-                "-O",
-                out_no_cache1,
-                "--outs-no-cache",
-                out_no_cache2,
-                "--file",
-                fname,
-                cmd,
-                arg1,
-                arg2,
-            ]
-        )
-        cmd_cls = args.func(args)
-        self.assertIsInstance(cmd_cls, CmdRun)
-        self.assertEqual(args.deps, [dep1, dep2])
-        self.assertEqual(args.outs, [out1, out2])
-        self.assertEqual(args.outs_no_cache, [out_no_cache1, out_no_cache2])
-        self.assertEqual(args.file, fname)
-        self.assertEqual(args.command, [cmd, arg1, arg2])
+    args = parse_args(
+        [
+            "run",
+            "-d",
+            dep1,
+            "--deps",
+            dep2,
+            "-o",
+            out1,
+            "--outs",
+            out2,
+            "-O",
+            out_no_cache1,
+            "--outs-no-cache",
+            out_no_cache2,
+            "--file",
+            fname,
+            cmd,
+            arg1,
+            arg2,
+        ]
+    )
+    cmd_cls = args.func(args)
+    assert isinstance(cmd_cls, CmdRun)
+    assert args.deps == [dep1, dep2]
+    assert args.outs == [out1, out2]
+    assert args.outs_no_cache == [out_no_cache1, out_no_cache2]
+    assert args.file == fname
+    assert args.command == [cmd, arg1, arg2]
 
-        cmd_cls.repo.close()
+    cmd_cls.repo.close()
 
 
-class TestPull(TestDvc):
-    def test(self):
-        args = parse_args(["pull"])
-        cmd = args.func(args)
-        self.assertIsInstance(cmd, CmdDataPull)
+def test_pull(dvc):
+    args = parse_args(["pull"])
+    cmd = args.func(args)
+    assert isinstance(cmd, CmdDataPull)
 
-        cmd.repo.close()
+    cmd.repo.close()
 
 
-class TestPush(TestDvc):
-    def test(self):
-        args = parse_args(["push"])
-        cmd = args.func(args)
-        self.assertIsInstance(cmd, CmdDataPush)
+def test_push(dvc):
+    args = parse_args(["push"])
+    cmd = args.func(args)
+    assert isinstance(cmd, CmdDataPush)
 
-        cmd.repo.close()
+    cmd.repo.close()
 
 
-class TestStatus(TestDvc):
-    def test(self):
-        args = parse_args(["status"])
-        cmd = args.func(args)
-        self.assertIsInstance(cmd, CmdDataStatus)
+def test_status(dvc):
+    args = parse_args(["status"])
+    cmd = args.func(args)
+    assert isinstance(cmd, CmdDataStatus)
 
-        cmd.repo.close()
+    cmd.repo.close()
 
 
-class TestRepro(TestDvc):
-    def test(self):
-        target1 = "1"
-        target2 = "2"
+def test_repro(dvc):
+    target1 = "1"
+    target2 = "2"
 
-        args = parse_args(
-            ["repro", target1, target2, "-f", "--force", "-s", "--single-item"]
-        )
+    args = parse_args(
+        ["repro", target1, target2, "-f", "--force", "-s", "--single-item"]
+    )
 
-        cmd = args.func(args)
-        self.assertIsInstance(cmd, CmdRepro)
-        self.assertEqual(args.targets, [target1, target2])
-        self.assertEqual(args.force, True)
-        self.assertEqual(args.single_item, True)
+    cmd = args.func(args)
+    assert isinstance(cmd, CmdRepro)
+    assert args.targets == [target1, target2]
+    assert args.force
+    assert args.single_item
 
-        cmd.repo.close()
+    cmd.repo.close()
 
 
-class TestRemove(TestDvc):
-    def test(self):
-        target1 = "1"
-        target2 = "2"
+def test_remove(dvc):
+    target1 = "1"
+    target2 = "2"
 
-        args = parse_args(["remove", target1, target2])
+    args = parse_args(["remove", target1, target2])
 
-        cmd = args.func(args)
-        self.assertIsInstance(cmd, CmdRemove)
-        self.assertEqual(args.targets, [target1, target2])
+    cmd = args.func(args)
+    assert isinstance(cmd, CmdRemove)
+    assert args.targets == [target1, target2]
 
-        cmd.repo.close()
+    cmd.repo.close()
 
 
-class TestAdd(TestDvc):
-    def test(self):
-        target1 = "1"
-        target2 = "2"
+def test_add(dvc):
+    target1 = "1"
+    target2 = "2"
 
-        args = parse_args(["add", target1, target2])
+    args = parse_args(["add", target1, target2])
 
-        cmd = args.func(args)
-        self.assertIsInstance(cmd, CmdAdd)
-        self.assertEqual(args.targets, [target1, target2])
+    cmd = args.func(args)
+    assert isinstance(cmd, CmdAdd)
+    assert args.targets == [target1, target2]
 
-        cmd.repo.close()
+    cmd.repo.close()
 
 
-class TestConfig(TestDvc):
-    def test(self):
-        name = "section.option"
-        value = "1"
+def test_config_unset(dvc):
+    name = "section.option"
+    value = "1"
 
-        args = parse_args(["config", "-u", "--unset", name, value])
+    args = parse_args(["config", "-u", "--unset", name, value])
 
-        cmd = args.func(args)
-        self.assertIsInstance(cmd, CmdConfig)
-        self.assertEqual(args.unset, True)
-        self.assertEqual(args.name, (False, "section", "option"))
-        self.assertEqual(args.value, value)
-
-    def test_config_list(self):
-        args = parse_args(["config", "--list"])
-
-        self.assertTrue(args.list)
-        self.assertIsNone(args.name)
-        self.assertIsNone(args.value)
+    cmd = args.func(args)
+    assert isinstance(cmd, CmdConfig)
+    assert args.unset
+    assert args.name == (False, "section", "option")
+    assert args.value == value
 
 
-class TestCheckout(TestDvc):
-    def test(self):
-        args = parse_args(["checkout"])
-        cmd = args.func(args)
-        self.assertIsInstance(cmd, CmdCheckout)
+def test_config_list():
+    args = parse_args(["config", "--list"])
 
-        cmd.repo.close()
+    assert args.list
+    assert args.name is None
+    assert args.value is None
 
 
-class TestFindRoot(TestDvc):
-    def test(self):
-        class Cmd(CmdBase):
-            def run(self):
-                pass
+def test_checkout(dvc):
+    args = parse_args(["checkout"])
+    cmd = args.func(args)
+    assert isinstance(cmd, CmdCheckout)
 
-        class A:
-            quiet = False
-            verbose = True
-            cd = os.path.pardir
-
-        args = A()
-        with self.assertRaises(DvcException):
-            Cmd(args)
+    cmd.repo.close()
 
 
-class TestCd(TestDvc):
-    def test(self):
-        class Cmd(CmdBase):
-            def run(self):
-                pass
+def test_find_root(dvc):
+    class Cmd(CmdBase):
+        def run(self):
+            pass
 
-        class A:
-            quiet = False
-            verbose = True
-            cd = os.path.pardir
+    class A:
+        quiet = False
+        verbose = True
+        cd = os.path.pardir
 
-        parent_dir = os.path.realpath(os.path.pardir)
-        args = A()
-        with self.assertRaises(DvcException):
-            Cmd(args)
-        current_dir = os.path.realpath(os.path.curdir)
-        self.assertEqual(parent_dir, current_dir)
+    args = A()
+    with pytest.raises(DvcException):
+        Cmd(args)
+
+
+def test_cd(dvc):
+    class Cmd(CmdBase):
+        def run(self):
+            pass
+
+    class A:
+        quiet = False
+        verbose = True
+        cd = os.path.pardir
+
+    parent_dir = os.path.realpath(os.path.pardir)
+    args = A()
+    with pytest.raises(DvcException):
+        Cmd(args)
+    current_dir = os.path.realpath(os.path.curdir)
+    assert parent_dir == current_dir
 
 
 def test_unknown_command_help(capsys):

tests/func/test_dvcfile.py

@@ -418,6 +418,7 @@ def test_dvcfile_load_dump_stage_with_desc_meta(tmp_dir, dvc):
             "plots": {
                 "path/to/plot": {"x": "value", "y": "value"},
                 "path/to/another/plot": {"x": "value", "y": "value"},
+                "path/to/empty/plot": None,
             },
             "stages": STAGE_EXAMPLE,
         },
@@ -425,6 +426,8 @@ def test_dvcfile_load_dump_stage_with_desc_meta(tmp_dir, dvc):
             "plots": [
                 {"path/to/plot": {"x": "value", "y": "value"}},
                 {"path/to/another/plot": {"x": "value", "y": "value"}},
+                {"path/to/empty/plot": None},
+                "path/to/plot/str",
             ],
             "stages": STAGE_EXAMPLE,
         },

tests/func/test_gc.py

@@ -2,186 +2,92 @@ import logging
 import os
 import shutil
 
-import configobj
 import pytest
-from git import Repo
 
 from dvc.cli import main
 from dvc.exceptions import CollectCacheError
 from dvc.fs import LocalFileSystem
-from dvc.repo import Repo as DvcRepo
 from dvc.utils.fs import remove
 from dvc_data.hashfile.db.local import LocalHashFileDB
-from tests.basic_env import TestDvcGit
 
 
-class TestGC(TestDvcGit):
-    def setUp(self):
-        super().setUp()
+@pytest.fixture
+def good_and_bad_cache(tmp_dir, dvc):
+    tmp_dir.dvc_gen("foo", "foo")
+    (stage,) = tmp_dir.dvc_gen(
+        "data",
+        {"sub": {"data_sub": "data_sub", "data": "data", "тест": "проверка"}},
+    )
+    raw_dir_hash = stage.outs[0].hash_info.as_raw().value
+    odb = dvc.odb.local
 
-        self.dvc.add(self.FOO)
-        stages = self.dvc.add(self.DATA_DIR)
-        raw_dir_hash = stages[0].outs[0].hash_info.as_raw().value
+    bad_cache = {raw_dir_hash}
+    for i in ["123", "234", "345"]:
+        odb.add_bytes(i, i.encode("utf8"))
+        bad_cache.add(i)
 
-        self.good_cache = [
-            self.dvc.odb.local.oid_to_path(md5)
-            for md5 in self.dvc.odb.local.all()
-            if md5 != raw_dir_hash
-        ]
-
-        self.bad_cache = [self.dvc.odb.local.oid_to_path(raw_dir_hash)]
-        for i in ["123", "234", "345"]:
-            path = os.path.join(self.dvc.odb.local.path, i[0:2], i[2:])
-            self.create(path, i)
-            self.bad_cache.append(path)
-
-    def test_api(self):
-        self.dvc.gc(workspace=True)
-        self._test_gc()
-
-    def test_cli(self):
-        ret = main(["gc", "-wf"])
-        self.assertEqual(ret, 0)
-        self._test_gc()
-
-    def _test_gc(self):
-        self.assertTrue(os.path.isdir(self.dvc.odb.local.path))
-        for c in self.bad_cache:
-            self.assertFalse(os.path.exists(c))
-
-        for c in self.good_cache:
-            self.assertTrue(os.path.exists(c))
+    good_cache = {md5 for md5 in odb.all() if md5 not in bad_cache}
+    return good_cache, bad_cache
 
 
-class TestGCBranchesTags(TestDvcGit):
-    def _check_cache(self, num):
-        total = 0
-        for _, _, files in os.walk(os.path.join(".dvc", "cache")):
-            total += len(files)
-        self.assertEqual(total, num)
-
-    def test(self):
-        fname = "file"
-
-        with open(fname, "w+", encoding="utf-8") as fobj:
-            fobj.write("v1.0")
-
-        stages = self.dvc.add(fname)
-        self.assertEqual(len(stages), 1)
-        self.dvc.scm.add([".gitignore", stages[0].relpath])
-        self.dvc.scm.commit("v1.0")
-        self.dvc.scm.tag("v1.0")
-
-        self.dvc.scm.checkout("test", create_new=True)
-        self.dvc.remove(stages[0].relpath)
-        with open(fname, "w+", encoding="utf-8") as fobj:
-            fobj.write("test")
-        stages = self.dvc.add(fname)
-        self.assertEqual(len(stages), 1)
-        self.dvc.scm.add([".gitignore", stages[0].relpath])
-        self.dvc.scm.commit("test")
-
-        self.dvc.scm.checkout("master")
-        self.dvc.remove(stages[0].relpath)
-        with open(fname, "w+", encoding="utf-8") as fobj:
-            fobj.write("trash")
-        stages = self.dvc.add(fname)
-        self.assertEqual(len(stages), 1)
-        self.dvc.scm.add([".gitignore", stages[0].relpath])
-        self.dvc.scm.commit("trash")
-
-        self.dvc.remove(stages[0].relpath)
-        with open(fname, "w+", encoding="utf-8") as fobj:
-            fobj.write("master")
-        stages = self.dvc.add(fname)
-        self.assertEqual(len(stages), 1)
-        self.dvc.scm.add([".gitignore", stages[0].relpath])
-        self.dvc.scm.commit("master")
-
-        self._check_cache(4)
-
-        self.dvc.gc(all_tags=True, all_branches=True)
-
-        self._check_cache(3)
-
-        self.dvc.gc(all_tags=False, all_branches=True)
-
-        self._check_cache(2)
-
-        self.dvc.gc(all_tags=True, all_branches=False)
-
-        self._check_cache(1)
+def test_gc_api(dvc, good_and_bad_cache):
+    dvc.gc(workspace=True)
+    odb = dvc.odb.local
+    good_cache, bad_cache = good_and_bad_cache
+    assert set(odb.oids_exist([*good_cache, *bad_cache])) == good_cache
 
 
-class TestGCMultipleDvcRepos(TestDvcGit):
-    def _check_cache(self, num):
-        total = 0
-        for _, _, files in os.walk(os.path.join(".dvc", "cache")):
-            total += len(files)
-        self.assertEqual(total, num)
+def test_gc_cli(dvc, good_and_bad_cache):
+    assert main(["gc", "-wf"]) == 0
+    odb = dvc.odb.local
+    good_cache, bad_cache = good_and_bad_cache
+    assert set(odb.oids_exist([*good_cache, *bad_cache])) == good_cache
 
-    def setUp(self):
-        super().setUp()
-        self.additional_path = self.mkdtemp()
-        self.additional_git = Repo.init(self.additional_path)
-        self.additional_dvc = DvcRepo.init(self.additional_path)
 
-        cache_path = os.path.join(self._root_dir, ".dvc", "cache")
-        config_path = os.path.join(
-            self.additional_path, ".dvc", "config.local"
-        )
-        cfg = configobj.ConfigObj()
-        cfg.filename = config_path
-        cfg["cache"] = {"dir": cache_path}
-        cfg.write()
+def test_gc_branches_tags(tmp_dir, dvc, scm):
+    tmp_dir.dvc_gen("file", "v1.0", commit="v1.0")
+    scm.tag("v1.0")
 
-        self.additional_dvc = DvcRepo(self.additional_path)
+    with tmp_dir.branch("test", new=True):
+        dvc.remove("file.dvc")
+        tmp_dir.dvc_gen("file", "test", commit="test")
 
-    def test(self):
+    dvc.remove("file.dvc")
+    tmp_dir.dvc_gen("file", "trash", commit="trash")
 
-        # ADD FILE ONLY IN MAIN PROJECT
-        fname = "only_in_first"
-        with open(fname, "w+", encoding="utf-8") as fobj:
-            fobj.write("only in main repo")
+    dvc.remove("file.dvc")
+    tmp_dir.dvc_gen("file", "master", commit="trash")
 
-        stages = self.dvc.add(fname)
-        self.assertEqual(len(stages), 1)
+    odb = dvc.odb.local
+    assert len(list(odb.all())) == 4
 
-        # ADD FILE IN MAIN PROJECT THAT IS ALSO IN SECOND PROJECT
-        fname = "in_both"
-        with open(fname, "w+", encoding="utf-8") as fobj:
-            fobj.write("in both repos")
+    dvc.gc(all_tags=True, all_branches=True)
+    assert len(list(odb.all())) == 3
 
-        stages = self.dvc.add(fname)
-        self.assertEqual(len(stages), 1)
+    dvc.gc(all_tags=False, all_branches=True)
+    assert len(list(odb.all())) == 2
 
-        cwd = os.getcwd()
-        os.chdir(self.additional_path)
-        # ADD FILE ONLY IN SECOND PROJECT
-        fname = "only_in_second"
-        with open(fname, "w+", encoding="utf-8") as fobj:
-            fobj.write("only in additional repo")
+    dvc.gc(all_tags=True, all_branches=False)
+    assert len(list(odb.all())) == 1
 
-        stages = self.additional_dvc.add(fname)
-        self.assertEqual(len(stages), 1)
 
-        # ADD FILE IN SECOND PROJECT THAT IS ALSO IN MAIN PROJECT
-        fname = "in_both"
-        with open(fname, "w+", encoding="utf-8") as fobj:
-            fobj.write("in both repos")
+def test_gc_multiple_dvc_repos(tmp_dir, scm, dvc, erepo_dir):
+    tmp_dir.dvc_gen("only_in_first", "only in main repo")
+    tmp_dir.dvc_gen("in_both", "in both repos")
 
-        stages = self.additional_dvc.add(fname)
-        self.assertEqual(len(stages), 1)
+    erepo_dir.dvc.odb.local.path = dvc.odb.local.path
+    with erepo_dir.chdir():
+        erepo_dir.dvc_gen("in_both", "in both repos")
+        erepo_dir.dvc_gen("only_in_second", "only in additional repo")
 
-        os.chdir(cwd)
+    odb = dvc.odb.local
+    assert len(list(odb.all())) == 3
 
-        self._check_cache(3)
+    dvc.gc(repos=[erepo_dir], workspace=True)
+    assert len(list(odb.all())) == 3
 
-        self.dvc.gc(repos=[self.additional_path], workspace=True)
-        self._check_cache(3)
-
-        self.dvc.gc(workspace=True)
-        self._check_cache(2)
+    dvc.gc(workspace=True)
+    assert len(list(odb.all())) == 2
 
 
 def test_all_commits(tmp_dir, scm, dvc):

tests/func/test_import.py

@@ -1,6 +1,5 @@
 import filecmp
 import os
-from unittest.mock import patch
 
 import pytest
 from funcy import first
@@ -49,7 +48,7 @@ def test_import_git_file(tmp_dir, scm, dvc, git_dir, src_is_dvc):
     }
 
 
-def test_import_cached_file(erepo_dir, tmp_dir, dvc, scm, monkeypatch):
+def test_import_cached_file(mocker, erepo_dir, tmp_dir, dvc, scm, monkeypatch):
     src = "some_file"
     dst = "some_file_imported"
 
@@ -60,10 +59,10 @@ def test_import_cached_file(erepo_dir, tmp_dir, dvc, scm, monkeypatch):
     (tmp_dir / dst).unlink()
 
     remote_exception = NoRemoteError("dvc import")
-    with patch.object(
+    mocker.patch.object(
         dvc.cloud, "get_remote_odb", side_effect=remote_exception
-    ):
-        tmp_dir.dvc.imp(os.fspath(erepo_dir), src, dst)
+    )
+    tmp_dir.dvc.imp(os.fspath(erepo_dir), src, dst)
 
     assert (tmp_dir / dst).is_file()
     assert filecmp.cmp(erepo_dir / src, tmp_dir / dst, shallow=False)
@@ -305,7 +304,7 @@ def test_pull_imported_directory_stage(tmp_dir, dvc, erepo_dir):
     dvc.imp(os.fspath(erepo_dir), "dir", "dir_imported")
 
     remove("dir_imported")
-    remove(dvc.odb.local.path)
+    dvc.odb.local.clear()
 
     dvc.pull(["dir_imported.dvc"])
 
@@ -321,7 +320,7 @@ def test_pull_wildcard_imported_directory_stage(tmp_dir, dvc, erepo_dir):
     dvc.imp(os.fspath(erepo_dir), "dir123", "dir_imported123")
 
     remove("dir_imported123")
-    remove(dvc.odb.local.path)
+    dvc.odb.local.clear()
 
     dvc.pull(["dir_imported*.dvc"], glob=True)
 
@@ -357,7 +356,9 @@ def test_push_wildcard_from_bare_git_repo(
             dvc_repo.dvc.imp(os.fspath(tmp_dir), "dir123")
 
 
-def test_download_error_pulling_imported_stage(tmp_dir, dvc, erepo_dir):
+def test_download_error_pulling_imported_stage(
+    mocker, tmp_dir, dvc, erepo_dir
+):
     with erepo_dir.chdir():
         erepo_dir.dvc_gen("foo", "foo content", commit="create foo")
     dvc.imp(os.fspath(erepo_dir), "foo", "foo_imported")
@@ -368,9 +369,8 @@ def test_download_error_pulling_imported_stage(tmp_dir, dvc, erepo_dir):
     remove("foo_imported")
     remove(dst_cache)
 
-    with patch(
-        "dvc_objects.fs.generic.transfer", side_effect=Exception
-    ), pytest.raises(DownloadError):
+    mocker.patch("dvc_objects.fs.generic.transfer", side_effect=Exception)
+    with pytest.raises(DownloadError):
         dvc.pull(["foo_imported.dvc"])
 
 
@@ -546,9 +546,8 @@ def test_pull_imported_stage_from_subrepos(
     dvc.imp(os.fspath(erepo_dir), path, out="out")
 
     # clean everything
-    remove(dvc.odb.local.path)
+    dvc.odb.local.clear()
     remove("out")
-    makedirs(dvc.odb.local.path)
 
     stats = dvc.pull(["out.dvc"])
 
@@ -633,7 +632,7 @@ def test_chained_import(tmp_dir, dvc, make_tmp_dir, erepo_dir, local_cloud):
     assert (dst / "foo").read_text() == "foo"
     assert (dst / "bar").read_text() == "bar"
 
-    remove(dvc.odb.local.path)
+    dvc.odb.local.clear()
     remove("dir_imported")
 
     # pulled objects should come from the original upstream repo's remote,

tests/func/test_import_url.py

@@ -13,37 +13,32 @@ from dvc.exceptions import InvalidArgumentError
 from dvc.stage import Stage
 from dvc.testing.workspace_tests import TestImport as _TestImport
 from dvc.utils.fs import makedirs
-from tests.basic_env import TestDvc
 
 
-class TestCmdImport(TestDvc):
-    def test(self):
-        ret = main(["import-url", self.FOO, "import"])
-        self.assertEqual(ret, 0)
-        self.assertTrue(os.path.exists("import.dvc"))
+def test_cmd_import(tmp_dir, dvc):
+    tmp_dir.gen("foo", "foo")
+    ret = main(["import-url", "foo", "import"])
+    assert ret == 0
+    assert os.path.exists("import.dvc")
 
-        ret = main(["import-url", "non-existing-file", "import"])
-        self.assertNotEqual(ret, 0)
-
-    def test_unsupported(self):
-        ret = main(["import-url", "unsupported://path", "import_unsupported"])
-        self.assertNotEqual(ret, 0)
+    ret = main(["import-url", "non-existing-file", "import"])
+    assert ret != 0
 
 
-class TestDefaultOutput(TestDvc):
-    def test(self):
-        tmpdir = self.mkdtemp()
-        filename = str(uuid4())
-        tmpfile = os.path.join(tmpdir, filename)
+def test_cmd_unsupported_scheme(dvc):
+    ret = main(["import-url", "unsupported://path", "import_unsupported"])
+    assert ret != 0
 
-        with open(tmpfile, "w", encoding="utf-8") as fd:
-            fd.write("content")
 
-        ret = main(["import-url", tmpfile])
-        self.assertEqual(ret, 0)
-        self.assertTrue(os.path.exists(filename))
-        with open(filename, encoding="utf-8") as fd:
-            self.assertEqual(fd.read(), "content")
+def test_default_output(tmp_dir, dvc, cloud):
+    filename = str(uuid4())
+    tmpfile = cloud / filename
+    tmpfile.write_bytes(b"content")
+    cloud.gen(filename, "content")
+
+    ret = main(["import-url", tmpfile.fs_path])
+    assert ret == 0
+    assert (tmp_dir / filename).read_bytes() == b"content"
 
 
 def test_should_remove_outs_before_import(tmp_dir, dvc, mocker, erepo_dir):
@@ -56,26 +51,22 @@ def test_should_remove_outs_before_import(tmp_dir, dvc, mocker, erepo_dir):
     assert remove_outs_call_counter.mock.call_count == 1
 
 
-class TestImportFilename(TestDvc):
-    def setUp(self):
-        super().setUp()
-        tmp_dir = self.mkdtemp()
-        self.external_source = os.path.join(tmp_dir, "file")
-        with open(self.external_source, "w", encoding="utf-8") as fobj:
-            fobj.write("content")
+def test_import_filename(tmp_dir, dvc, cloud):
+    external_source = cloud / "file"
+    (cloud / "file").write_text("content", encoding="utf-8")
+    ret = main(["import-url", "--file", "bar.dvc", external_source.fs_path])
+    assert ret == 0
+    assert (tmp_dir / "bar.dvc").exists()
 
-    def test(self):
-        ret = main(["import-url", "--file", "bar.dvc", self.external_source])
-        self.assertEqual(0, ret)
-        self.assertTrue(os.path.exists("bar.dvc"))
+    (tmp_dir / "bar.dvc").unlink()
+    (tmp_dir / "sub").mkdir()
 
-        os.remove("bar.dvc")
-        os.mkdir("sub")
-
-        path = os.path.join("sub", "bar.dvc")
-        ret = main(["import-url", "--file", path, self.external_source, "out"])
-        self.assertEqual(0, ret)
-        self.assertTrue(os.path.exists(path))
+    path = tmp_dir / "sub" / "bar.dvc"
+    ret = main(
+        ["import-url", "--file", path.fs_path, external_source.fs_path, "out"]
+    )
+    assert ret == 0
+    assert path.exists()
 
 
 @pytest.mark.parametrize("dname", [".", "dir", "dir/subdir"])

tests/func/test_init.py

@@ -64,7 +64,7 @@ def test_init_quiet_should_not_display_welcome_screen(tmp_dir, scm, caplog):
     with caplog.at_level(logging.INFO, logger="dvc"):
         ret = main(["init", "--quiet"])
 
-        assert 0 == ret
+        assert ret == 0
         assert "" == caplog.text
 
 

tests/func/test_live.py

@@ -1,228 +0,0 @@
-from copy import deepcopy
-from textwrap import dedent
-
-import pytest
-from funcy import first
-
-from dvc import stage as stage_module
-
-pytest.importorskip("dvclive", reason="no dvclive")
-
-
-LIVE_SCRIPT = dedent(
-    """
-        from dvclive import Live
-        from PIL import Image
-
-        import sys
-        r = 2
-        metrics_logger = Live()
-        for i in range(r):
-           metrics_logger.log("loss", 1-i/r)
-           metrics_logger.log("accuracy", i/r)
-           image = Image.new("RGB", (10,10), (i,i,i))
-           metrics_logger.log_image("image.jpg", image)
-           metrics_logger.next_step()"""
-)
-
-LIVE_CHECKPOINT_SCRIPT = dedent(
-    """
-            import os
-            from dvclive import Live
-
-            def read(path):
-                value=0
-                if os.path.exists(path):
-                    with open(path, 'r') as fobj:
-                        try:
-                            value = int(fobj.read())
-                        except ValueError:
-                            pass
-                return value
-
-            def dump(value, path):
-                with open(path, "w") as fobj:
-                    fobj.write(str(value))
-
-            r = 3
-            checkpoint_file = "checkpoint"
-            metrics_logger = Live()
-
-            value = read(checkpoint_file)
-            for i in range(1,r):
-                m = i + value
-                dump(m, checkpoint_file)
-
-                metrics_logger.log("metric1", m)
-                metrics_logger.log("metric2", m * 2)
-                metrics_logger.next_step()"""
-)
-
-
-@pytest.fixture
-def live_stage(tmp_dir, scm, dvc, mocker):
-    mocker.patch("dvc.stage.run.Monitor.AWAIT", 0.01)
-
-    def make(
-        html=True,
-        live=None,
-        live_no_cache=None,
-        code=LIVE_SCRIPT,
-    ):
-        assert bool(live) != bool(live_no_cache)
-        tmp_dir.gen("train.py", code)
-        tmp_dir.gen("params.yaml", "foo: 1")
-        stage = dvc.run(
-            cmd="python train.py",
-            params=["foo"],
-            deps=["train.py"],
-            name="live_stage",
-            live=live,
-            live_no_cache=live_no_cache,
-            live_no_html=not html,
-        )
-
-        scm.add(["dvc.yaml", "dvc.lock", "train.py", "params.yaml"])
-        scm.commit("initial: live_stage")
-        return stage
-
-    yield make
-
-
-@pytest.mark.parametrize("html", (True, False))
-def test_export_config(tmp_dir, dvc, mocker, live_stage, html):
-    run_spy = mocker.spy(stage_module.run, "_run")
-    live_stage(html=html, live="logs")
-
-    assert run_spy.call_count == 1
-    _, kwargs = run_spy.call_args
-
-    assert "DVCLIVE_PATH" in kwargs["env"]
-    assert kwargs["env"]["DVCLIVE_PATH"] == "logs"
-
-    assert "DVCLIVE_HTML" in kwargs["env"]
-    assert kwargs["env"]["DVCLIVE_HTML"] == str(int(html))
-
-
-def test_live_provides_metrics(tmp_dir, dvc, live_stage):
-    live_stage(live="logs")
-
-    assert (tmp_dir / "logs.json").is_file()
-    assert dvc.metrics.show() == {
-        "": {
-            "data": {
-                "logs.json": {
-                    "data": {"accuracy": 0.5, "loss": 0.5, "step": 1}
-                }
-            }
-        }
-    }
-
-    assert (tmp_dir / "logs").is_dir()
-    plots_data = dvc.plots.show()
-    files = list(plots_data["workspace"]["sources"]["data"])
-    assert "logs/scalars/accuracy.tsv" in files
-    assert "logs/scalars/loss.tsv" in files
-    assert "logs/images/0/image.jpg" in files
-    assert "logs/images/1/image.jpg" in files
-
-
-@pytest.mark.parametrize("typ", ("live", "live_no_cache"))
-def test_experiments_track_summary(tmp_dir, scm, dvc, live_stage, typ):
-    live_stage(**{typ: "logs"})
-    baseline_rev = scm.get_rev()
-
-    experiments = dvc.experiments.run(targets=["live_stage"], params=["foo=2"])
-    assert len(experiments) == 1
-    ((exp_rev, _),) = experiments.items()
-
-    res = dvc.experiments.show()
-    assert "logs.json" in res[baseline_rev][exp_rev]["data"]["metrics"].keys()
-
-
-@pytest.mark.parametrize("html", [True, False])
-def test_live_html(tmp_dir, dvc, live_stage, html):
-    live_stage(live="logs", html=html)
-
-    assert (tmp_dir / "logs_dvc_plots" / "index.html").is_file() == html
-    if html:
-        html_text = (tmp_dir / "logs_dvc_plots" / "index.html").read_text()
-        assert 'http-equiv="refresh"' in html_text
-
-
-@pytest.fixture
-def live_checkpoint_stage(tmp_dir, scm, dvc, mocker):
-    mocker.patch("dvc.stage.run.Monitor.AWAIT", 0.01)
-
-    def make(live=None, live_no_cache=None):
-        assert bool(live) != bool(live_no_cache)
-
-        tmp_dir.gen("train.py", LIVE_CHECKPOINT_SCRIPT)
-        tmp_dir.gen("params.yaml", "foo: 1")
-        stage = dvc.run(
-            cmd="python train.py",
-            params=["foo"],
-            deps=["train.py"],
-            name="live_stage",
-            live=live,
-            live_no_cache=live_no_cache,
-            checkpoints=["checkpoint"],
-            no_exec=True,
-        )
-
-        scm.add(["dvc.yaml", "train.py", "params.yaml", ".gitignore"])
-        scm.commit("initial: live_stage")
-        return stage
-
-    yield make
-
-
-def checkpoints_metric(show_results, metric_file, metric_name):
-    tmp = deepcopy(show_results)
-    tmp.pop("workspace")
-    tmp = first(tmp.values())
-    tmp.pop("baseline")
-    return [
-        exp["data"]["metrics"][metric_file]["data"][metric_name]
-        for exp in tmp.values()
-    ]
-
-
-@pytest.mark.parametrize("typ", ("live", "live_no_cache"))
-def test_live_checkpoints_resume(
-    tmp_dir, scm, dvc, live_checkpoint_stage, typ
-):
-    stage = live_checkpoint_stage(**{typ: "logs"})
-    results = dvc.experiments.run(
-        stage.addressing, params=["foo=2"], tmp_dir=False
-    )
-
-    checkpoint_resume = first(results)
-
-    dvc.experiments.run(
-        stage.addressing, checkpoint_resume=checkpoint_resume, tmp_dir=False
-    )
-
-    results = dvc.experiments.show()
-    assert checkpoints_metric(results, "logs.json", "step") == [3, 2, 1, 0]
-    assert checkpoints_metric(results, "logs.json", "metric1") == [4, 3, 2, 1]
-    assert checkpoints_metric(results, "logs.json", "metric2") == [8, 6, 4, 2]
-
-
-def test_dvclive_stage_with_different_wdir(tmp_dir, scm, dvc):
-    (tmp_dir / "subdir").gen("train.py", LIVE_SCRIPT)
-    (tmp_dir / "subdir" / "params.yaml").dump({"foo": 1})
-    dvc.stage.add(
-        cmd="python train.py",
-        params=["foo"],
-        deps=["train.py"],
-        name="live_stage",
-        live="dvclive",
-        live_no_html=True,
-        wdir="subdir",
-    )
-
-    dvc.reproduce()
-
-    assert (tmp_dir / "subdir" / "dvclive").is_dir()
-    assert (tmp_dir / "subdir" / "dvclive.json").is_file()

tests/func/test_move.py

@@ -4,198 +4,129 @@ import textwrap
 import pytest
 
 from dvc.cli import main
-from dvc.dvcfile import DVC_FILE_SUFFIX
 from dvc.exceptions import DvcException, MoveNotDataSourceError
-from dvc.utils.serialize import load_yaml
-from tests.basic_env import TestDvc, TestDvcGit
-from tests.func.test_repro import TestRepro
-from tests.utils import cd
 
 
-class TestMove(TestDvc):
-    def test(self):
-        dst = self.FOO + "1"
-        self.dvc.add(self.FOO)
-        self.dvc.move(self.FOO, dst)
+def test_move(tmp_dir, dvc):
+    tmp_dir.dvc_gen("foo", "foo")
+    dvc.move("foo", "foo1")
 
-        self.assertFalse(os.path.isfile(self.FOO))
-        self.assertTrue(os.path.isfile(dst))
+    assert not (tmp_dir / "foo").is_file()
+    assert (tmp_dir / "foo1").is_file()
 
 
-class TestMoveNonExistentFile(TestDvc):
-    def test(self):
-        with self.assertRaises(DvcException):
-            self.dvc.move("non_existent_file", "dst")
+def test_move_non_existent_file(dvc):
+    with pytest.raises(DvcException):
+        dvc.move("non_existent_file", "dst")
 
 
-class TestMoveDirectory(TestDvc):
-    def test(self):
-        dst = "dst"
-        stages = self.dvc.add(self.DATA_DIR)
-        self.assertEqual(len(stages), 1)
-        self.assertTrue(stages[0] is not None)
-        self.dvc.move(self.DATA_DIR, dst)
-        self.assertFalse(os.path.exists(self.DATA_DIR))
-        self.assertTrue(os.path.exists(dst))
+def test_move_directory(tmp_dir, dvc):
+    tmp_dir.dvc_gen("data", {"foo": "foo", "bar": "bar"})
+    dvc.move("data", "dst")
+    assert not (tmp_dir / "data").is_dir()
+    assert (tmp_dir / "dst").is_dir()
 
 
-class TestCmdMove(TestDvc):
-    def test(self):
-        stages = self.dvc.add(self.FOO)
-        self.assertEqual(len(stages), 1)
-        self.assertTrue(stages[0] is not None)
-
-        ret = main(["move", self.FOO, self.FOO + "1"])
-        self.assertEqual(ret, 0)
-
-        ret = main(["move", "non-existing-file", "dst"])
-        self.assertNotEqual(ret, 0)
+def test_cmd_move(tmp_dir, dvc):
+    tmp_dir.dvc_gen("foo", "foo")
+    assert main(["move", "foo", "foo" + "1"]) == 0
+    assert main(["move", "non-existing-file", "dst"]) != 0
 
 
-class TestMoveNotDataSource(TestRepro):
-    def test(self):
-        from dvc.repo import Repo as DvcRepo
+def test_move_not_data_source(tmp_dir, dvc):
+    tmp_dir.dvc_gen("foo", "foo")
+    dvc.run(
+        cmd="cp foo file1",
+        outs=["file1"],
+        deps=["foo"],
+        single_stage=True,
+    )
 
-        self.dvc = DvcRepo(self._root_dir)
-        with self.assertRaises(MoveNotDataSourceError):
-            self.dvc.move(self.file1, "dst")
+    with pytest.raises(MoveNotDataSourceError):
+        dvc.move("file1", "dst")
 
-        ret = main(["move", self.file1, "dst"])
-        self.assertNotEqual(ret, 0)
+    assert main(["move", "file1", "dst"]) != 0
+    assert (tmp_dir / "file1").exists()
 
 
-class TestMoveFileWithExtension(TestDvc):
-    def test(self):
-        with open(
-            os.path.join(self.dvc.root_dir, "file.csv"), "w", encoding="utf-8"
-        ) as fd:
-            fd.write("1,2,3\n")
+def test_move_file_with_extension(tmp_dir, dvc):
+    tmp_dir.dvc_gen("file.csv", "1,2,3\n")
 
-        self.dvc.add("file.csv")
-
-        self.assertTrue(os.path.exists("file.csv"))
-        self.assertTrue(os.path.exists("file.csv.dvc"))
-
-        ret = main(["move", "file.csv", "other_name.csv"])
-        self.assertEqual(ret, 0)
-
-        self.assertFalse(os.path.exists("file.csv"))
-        self.assertFalse(os.path.exists("file.csv.dvc"))
-        self.assertTrue(os.path.exists("other_name.csv"))
-        self.assertTrue(os.path.exists("other_name.csv.dvc"))
+    assert main(["move", "file.csv", "other_name.csv"]) == 0
+    assert not (tmp_dir / "file.csv").exists()
+    assert not (tmp_dir / "file.csv.dvc").exists()
+    assert (tmp_dir / "other_name.csv").exists()
+    assert (tmp_dir / "other_name.csv.dvc").exists()
 
 
-class TestMoveFileToDirectory(TestDvc):
-    def test(self):
-        foo_dvc_file = self.FOO + DVC_FILE_SUFFIX
-        ret = main(["add", self.FOO])
-        self.assertEqual(ret, 0)
-        self.assertTrue(os.path.exists(foo_dvc_file))
+def test_move_file_to_directory(tmp_dir, dvc):
+    tmp_dir.dvc_gen("foo", "foo")
+    tmp_dir.gen({"data": {"bar": "bar"}})
 
-        new_foo_path = os.path.join(self.DATA_DIR, self.FOO)
-        new_foo_dvc_path = new_foo_path + DVC_FILE_SUFFIX
-        ret = main(["move", self.FOO, new_foo_path])
-        self.assertEqual(ret, 0)
-
-        self.assertFalse(os.path.exists(self.FOO))
-        self.assertFalse(os.path.exists(foo_dvc_file))
-        self.assertTrue(os.path.exists(new_foo_path))
-        self.assertTrue(os.path.exists(new_foo_dvc_path))
+    assert main(["move", "foo", os.path.join("data", "foo")]) == 0
+    assert not (tmp_dir / "foo").exists()
+    assert not (tmp_dir / "foo.dvc").exists()
+    assert (tmp_dir / "data" / "foo").exists()
+    assert (tmp_dir / "data" / "foo.dvc").exists()
 
 
-class TestMoveFileToDirectoryWithoutSpecifiedTargetName(TestDvc):
-    def test(self):
-        foo_stage_file_path = self.FOO + DVC_FILE_SUFFIX
-        ret = main(["add", self.FOO])
-        self.assertEqual(ret, 0)
-        self.assertTrue(os.path.exists(foo_stage_file_path))
+def test_move_file_to_directory_without_specified_target_name(tmp_dir, dvc):
+    tmp_dir.dvc_gen("foo", "foo")
+    tmp_dir.gen({"data": {"bar": "bar"}})
 
-        target_foo_path = os.path.join(self.DATA_DIR, self.FOO)
-        target_foo_stage_file_path = target_foo_path + DVC_FILE_SUFFIX
+    assert main(["move", "foo", "data"]) == 0
+    assert not (tmp_dir / "foo").exists()
+    assert not (tmp_dir / "foo.dvc").exists()
+    assert (tmp_dir / "data" / "foo").exists()
+    assert (tmp_dir / "data" / "foo.dvc").exists()
 
-        ret = main(["move", self.FOO, self.DATA_DIR])
-        self.assertEqual(ret, 0)
-
-        self.assertFalse(os.path.exists(self.FOO))
-        self.assertFalse(os.path.exists(foo_stage_file_path))
-
-        self.assertTrue(os.path.exists(target_foo_path))
-        self.assertTrue(os.path.exists(target_foo_stage_file_path))
-
-        new_stage = load_yaml(target_foo_stage_file_path)
-        self.assertEqual(self.FOO, new_stage["outs"][0]["path"])
+    new_stage = (tmp_dir / "data" / "foo.dvc").load_yaml()
+    assert new_stage["outs"][0]["path"] == "foo"
 
 
-class TestMoveDirectoryShouldNotOverwriteExisting(TestDvcGit):
-    def test(self):
-        dir_name = "dir"
-        orig_listdir = set(os.listdir(self.DATA_DIR))
+def test_move_directory_should_not_overwrite_existing(tmp_dir, dvc, scm):
+    tmp_dir.dvc_gen({"data": {"foo": "foo"}})
+    new_dir = tmp_dir / "dir"
+    new_dir.mkdir()
 
-        self.dvc.add(self.DATA_DIR)
-
-        os.mkdir(dir_name)
-        new_dir_name = os.path.join(dir_name, self.DATA_DIR)
-
-        self.dvc.move(self.DATA_DIR, dir_name)
-
-        data_dir_stage = self.DATA_DIR + DVC_FILE_SUFFIX
-        self.assertFalse(os.path.exists(self.DATA_DIR))
-        self.assertFalse(os.path.exists(data_dir_stage))
-
-        self.assertTrue(os.path.exists(dir_name))
-        self.assertEqual(
-            set(os.listdir(dir_name)),
-            {".gitignore", data_dir_stage, self.DATA_DIR},
-        )
-
-        self.assertTrue(os.path.exists(new_dir_name))
-        self.assertTrue(os.path.isfile(new_dir_name + DVC_FILE_SUFFIX))
-        self.assertEqual(set(os.listdir(new_dir_name)), orig_listdir)
+    dvc.move("data", "dir")
+    assert not (tmp_dir / "data").exists()
+    assert not (tmp_dir / "data.dvc").exists()
+    assert set(new_dir.iterdir()) == {
+        new_dir / ".gitignore",
+        new_dir / "data.dvc",
+        new_dir / "data",
+    }
+    assert set((new_dir / "data").iterdir()) == {new_dir / "data" / "foo"}
 
 
-class TestMoveFileBetweenDirectories(TestDvc):
-    def test(self):
-        data_stage_file = self.DATA + DVC_FILE_SUFFIX
-        ret = main(["add", self.DATA])
-        self.assertEqual(ret, 0)
-        self.assertTrue(os.path.exists(data_stage_file))
+def test_move_file_between_directories(tmp_dir, dvc):
+    tmp_dir.gen({"data": {"foo": "foo"}})
+    dvc.add(os.path.join("data", "foo"))
 
-        new_data_dir = "data_dir2"
-        os.makedirs(new_data_dir)
+    (tmp_dir / "data2").mkdir()
 
-        ret = main(["move", self.DATA, new_data_dir])
-        self.assertEqual(ret, 0)
+    assert main(["move", os.path.join("data", "foo"), "data2"]) == 0
+    assert not (tmp_dir / "data" / "foo").exists()
+    assert not (tmp_dir / "data" / "foo.dvc").exists()
+    assert (tmp_dir / "data2" / "foo").exists()
+    assert (tmp_dir / "data2" / "foo.dvc").exists()
 
-        new_data_path = os.path.join(new_data_dir, os.path.basename(self.DATA))
-        new_data_stage_file = new_data_path + DVC_FILE_SUFFIX
-
-        self.assertFalse(os.path.exists(self.DATA))
-        self.assertFalse(os.path.exists(data_stage_file))
-
-        self.assertTrue(os.path.exists(new_data_path))
-        self.assertTrue(os.path.exists(new_data_stage_file))
-
-        new_stage_file = load_yaml(new_data_stage_file)
-        self.assertEqual(
-            os.path.basename(self.DATA), new_stage_file["outs"][0]["path"]
-        )
+    d = (tmp_dir / "data2" / "foo.dvc").load_yaml()
+    assert d["outs"][0]["path"] == "foo"
 
 
-class TestMoveFileInsideDirectory(TestDvc):
-    def test(self):
-        ret = main(["add", self.DATA])
-        self.assertEqual(ret, 0)
+def test_move_file_inside_directory(tmp_dir, dvc):
+    tmp_dir.gen({"data": {"foo": "foo"}})
+    file = tmp_dir / "data" / "foo"
+    dvc.add(file.fs_path)
 
-        with cd(self.DATA_DIR):
-            ret = main(["move", os.path.basename(self.DATA), "data.txt"])
-            self.assertEqual(ret, 0)
+    with (tmp_dir / "data").chdir():
+        assert main(["move", "foo", "data.txt"]) == 0
 
-        self.assertFalse(os.path.exists(self.DATA))
-
-        data_fullpath = os.path.join(self.DATA_DIR, "data.txt")
-        dvc_fullpath = os.path.join(self.DATA_DIR, "data.txt.dvc")
-        self.assertTrue(os.path.exists(data_fullpath))
-        self.assertTrue(os.path.exists(dvc_fullpath))
+    assert not file.exists()
+    assert (tmp_dir / "data" / "data.txt").exists()
+    assert (tmp_dir / "data" / "data.txt.dvc").exists()
 
 
 def test_move_should_save_stage_info(tmp_dir, dvc):

tests/func/test_remote.py

@@ -10,58 +10,51 @@ from dvc.cli import main
 from dvc.config import Config
 from dvc.exceptions import DownloadError, RemoteCacheRequiredError, UploadError
 from dvc.utils.fs import remove
-from tests.basic_env import TestDvc
 
 
-class TestRemote(TestDvc):
-    def test(self):
-        remotes = ["a", "b", "c"]
+def test_remote(dvc):
+    remotes = ["a", "b", "c"]
 
-        self.assertEqual(main(["remote", "list"]), 0)
-        self.assertNotEqual(main(["remote", "remove", remotes[0]]), 0)
+    assert main(["remote", "list"]) == 0
+    assert main(["remote", "remove", remotes[0]]) != 0
 
-        for r in remotes:
-            self.assertEqual(
-                main(["remote", "add", "--default", r, "s3://bucket/name"]), 0
-            )
+    for r in remotes:
+        assert main(["remote", "add", "--default", r, "s3://bucket/name"]) == 0
 
-        self.assertEqual(main(["remote", "list"]), 0)
+    assert main(["remote", "list"]) == 0
 
-        self.assertEqual(
-            main(["remote", "modify", remotes[0], "checksum_jobs", "1"]), 0
-        )
-        self.assertEqual(main(["remote", "remove", remotes[0]]), 0)
+    assert main(["remote", "modify", remotes[0], "checksum_jobs", "1"]) == 0
+    assert main(["remote", "remove", remotes[0]]) == 0
 
-        self.assertEqual(main(["remote", "list"]), 0)
+    assert main(["remote", "list"]) == 0
 
-    def test_relative_path(self):
-        dname = os.path.join("..", "path", "to", "dir")
-        ret = main(["remote", "add", "mylocal", dname])
-        self.assertEqual(ret, 0)
 
-        # NOTE: we are in the repo's root and config is in .dvc/, so
-        # dir path written to config should be just one level above.
-        rel = os.path.join("..", dname)
-        config = configobj.ConfigObj(self.dvc.config.files["repo"])
-        self.assertEqual(
-            config['remote "mylocal"']["url"], rel.replace("\\", "/")
-        )
+def test_remote_add_relative_path(dvc):
+    dname = os.path.join("..", "path", "to", "dir")
+    ret = main(["remote", "add", "mylocal", dname])
+    assert ret == 0
 
-    def test_overwrite(self):
-        remote_name = "a"
-        remote_url = "s3://bucket/name"
-        self.assertEqual(main(["remote", "add", remote_name, remote_url]), 0)
-        self.assertEqual(main(["remote", "add", remote_name, remote_url]), 251)
-        self.assertEqual(
-            main(["remote", "add", "-f", remote_name, remote_url]), 0
-        )
+    # NOTE: we are in the repo's root and config is in .dvc/, so
+    # dir path written to config should be just one level above.
+    rel = os.path.join("..", dname)
+    config = configobj.ConfigObj(dvc.config.files["repo"])
+    assert config['remote "mylocal"']["url"] == rel.replace("\\", "/")
 
-    def test_referencing_other_remotes(self):
-        assert main(["remote", "add", "foo", "ssh://localhost/"]) == 0
-        assert main(["remote", "add", "bar", "remote://foo/dvc-storage"]) == 0
 
-        config = configobj.ConfigObj(self.dvc.config.files["repo"])
-        assert config['remote "bar"']["url"] == "remote://foo/dvc-storage"
+def test_remote_overwrite(dvc):
+    remote_name = "a"
+    remote_url = "s3://bucket/name"
+    assert main(["remote", "add", remote_name, remote_url]) == 0
+    assert main(["remote", "add", remote_name, remote_url]) == 251
+    assert main(["remote", "add", "-f", remote_name, remote_url]) == 0
+
+
+def test_referencing_other_remotes(dvc):
+    assert main(["remote", "add", "foo", "ssh://localhost/"]) == 0
+    assert main(["remote", "add", "bar", "remote://foo/dvc-storage"]) == 0
+
+    config = configobj.ConfigObj(dvc.config.files["repo"])
+    assert config['remote "bar"']["url"] == "remote://foo/dvc-storage"
 
 
 def test_remove_default(tmp_dir, dvc):
@@ -85,37 +78,35 @@ def test_remove_default(tmp_dir, dvc):
     assert local_config.get("core", {}).get("remote") is None
 
 
-class TestRemoteRemove(TestDvc):
-    def test(self):
-        ret = main(["config", "core.checksum_jobs", "1"])
-        self.assertEqual(ret, 0)
+def test_remote_remove(dvc):
+    ret = main(["config", "core.checksum_jobs", "1"])
+    assert ret == 0
 
-        remote = "mys3"
-        ret = main(["remote", "add", remote, "s3://bucket/name"])
-        self.assertEqual(ret, 0)
+    remote = "mys3"
+    ret = main(["remote", "add", remote, "s3://bucket/name"])
+    assert ret == 0
 
-        ret = main(["remote", "remove", remote])
-        self.assertEqual(ret, 0)
+    ret = main(["remote", "remove", remote])
+    assert ret == 0
 
 
-class TestRemoteDefault(TestDvc):
-    def test(self):
-        remote = "mys3"
-        ret = main(["remote", "add", "mys3", "s3://bucket/path"])
-        self.assertEqual(ret, 0)
+def test_remote_default_cmd(dvc):
+    remote = "mys3"
+    ret = main(["remote", "add", "mys3", "s3://bucket/path"])
+    assert ret == 0
 
-        ret = main(["remote", "default", "mys3"])
-        self.assertEqual(ret, 0)
-        config_file = os.path.join(self.dvc.dvc_dir, Config.CONFIG)
-        config = configobj.ConfigObj(config_file)
-        default = config["core"]["remote"]
-        self.assertEqual(default, remote)
+    ret = main(["remote", "default", "mys3"])
+    assert ret == 0
+    config_file = os.path.join(dvc.dvc_dir, Config.CONFIG)
+    config = configobj.ConfigObj(config_file)
+    default = config["core"]["remote"]
+    assert default == remote
 
-        ret = main(["remote", "default", "--unset"])
-        self.assertEqual(ret, 0)
-        config = configobj.ConfigObj(config_file)
-        default = config.get("core", {}).get("remote")
-        self.assertEqual(default, None)
+    ret = main(["remote", "default", "--unset"])
+    assert ret == 0
+    config = configobj.ConfigObj(config_file)
+    default = config.get("core", {}).get("remote")
+    assert default is None
 
 
 def test_show_default(dvc, capsys):

tests/func/test_repo_index.py

@@ -220,8 +220,8 @@ def test_unique_identifier(tmp_dir, dvc, scm, run_copy):
     # we get "workspace" as well from the brancher by default
     assert len(revs) + 1 == len(ids)
     possible_ids = {
-        True: "2ba7c7c5b395d4211348d6274b869fc7",
-        False: "8406970ad2fcafaa84d9310330a67576",
+        True: "dd9cf3a3dc2caac5835e64f258ac2d7b",
+        False: "b446f3cdc35539884dcc474d90ac6286",
     }
     assert set(ids) == {possible_ids[os.name == "posix"]}
 
@@ -303,3 +303,85 @@ def test_getitem(tmp_dir, dvc, run_copy):
 
     with pytest.raises(KeyError):
         _ = index["no-valid-stage-name"]
+
+
+def test_view_granular_dir(tmp_dir, scm, dvc, run_copy):
+    tmp_dir.dvc_gen(
+        {"dir": {"subdir": {"in-subdir": "in-subdir"}, "in-dir": "in-dir"}},
+        commit="init",
+    )
+    index = Index(dvc)
+
+    # view should include the specific target, parent dirs, and children
+    # view should exclude any siblings of the target
+    view = index.targets_view("dir/subdir")
+    data_index = view.data["repo"]
+    assert ("dir",) in data_index
+    assert (
+        "dir",
+        "subdir",
+    ) in data_index
+    assert ("dir", "subdir", "in-subdir") in data_index
+    assert (
+        "dir",
+        "in-dir",
+    ) not in data_index
+
+
+def test_view_stage_filter(tmp_dir, scm, dvc, run_copy):
+    (stage1,) = tmp_dir.dvc_gen("foo", "foo")
+    stage2 = run_copy("foo", "bar", name="copy-foo-bar")
+    tmp_dir.commit([s.outs[0].fspath for s in (stage1, stage2)], msg="add")
+    index = Index(dvc)
+
+    view = index.targets_view(None)
+    assert set(view.stages) == {stage1, stage2}
+    assert {out.fs_path for out in view.outs} == {
+        out.fs_path for out in (stage1.outs + stage2.outs)
+    }
+
+    view = index.targets_view(
+        None, stage_filter=lambda s: getattr(s, "name", "").startswith("copy")
+    )
+    assert set(view.stages) == {stage2}
+    assert {out.fs_path for out in view.outs} == {
+        out.fs_path for out in stage2.outs
+    }
+
+
+def test_view_outs_filter(tmp_dir, scm, dvc, run_copy):
+    (stage1,) = tmp_dir.dvc_gen("foo", "foo")
+    stage2 = run_copy("foo", "bar", name="copy-foo-bar")
+    tmp_dir.commit([s.outs[0].fspath for s in (stage1, stage2)], msg="add")
+    index = Index(dvc)
+
+    view = index.targets_view(None, outs_filter=lambda o: o.def_path == "foo")
+    assert set(view.stages) == {stage1, stage2}
+    assert {out.fs_path for out in view.outs} == {
+        out.fs_path for out in stage1.outs
+    }
+
+
+def test_view_combined_filter(tmp_dir, scm, dvc, run_copy):
+    (stage1,) = tmp_dir.dvc_gen("foo", "foo")
+    stage2 = run_copy("foo", "bar", name="copy-foo-bar")
+    tmp_dir.commit([s.outs[0].fspath for s in (stage1, stage2)], msg="add")
+    index = Index(dvc)
+
+    view = index.targets_view(
+        None,
+        stage_filter=lambda s: getattr(s, "name", "").startswith("copy"),
+        outs_filter=lambda o: o.def_path == "foo",
+    )
+    assert set(view.stages) == {stage2}
+    assert set(view.outs) == set()
+
+    view = index.targets_view(
+        None,
+        stage_filter=lambda s: getattr(s, "name", "").startswith("copy"),
+        outs_filter=lambda o: o.def_path == "bar",
+    )
+    assert set(view.stages) == {stage2}
+    assert {out.fs_path for out in view.outs} == {
+        out.fs_path for out in stage2.outs
+    }

tests/func/test_repro_multistage.py

@@ -9,149 +9,6 @@ from dvc.cli import main
 from dvc.dvcfile import PIPELINE_FILE, PIPELINE_LOCK
 from dvc.exceptions import CyclicGraphError, ReproductionError
 from dvc.stage import PipelineStage
-from tests.func import test_repro
-from tests.utils.scriptify import scriptify
-
-
-def copy_script(src, dest):
-    import shutil
-
-    shutil.copyfile(src, dest)
-
-
-COPY_SCRIPT, _ = scriptify(copy_script)
-
-
-class MultiStageRun:
-    def _run(self, **kwargs):
-        assert kwargs.get("name")
-        kwargs.pop("fname", None)
-        # ignore fname for now
-        return self.dvc.run(**kwargs)  # noqa, pylint: disable=no-member
-
-    @staticmethod
-    def _get_stage_target(stage):
-        return stage.addressing
-
-
-class TestReproFailMultiStage(MultiStageRun, test_repro.TestReproFail):
-    pass
-
-
-class TestReproCyclicGraphMultiStage(
-    MultiStageRun, test_repro.TestReproCyclicGraph
-):
-    pass
-
-
-class TestReproUnderDirMultiStage(
-    MultiStageRun, test_repro.TestReproDepUnderDir
-):
-    pass
-
-
-class TestReproDepDirWithOutputsUnderItMultiStage(
-    MultiStageRun, test_repro.TestReproDepDirWithOutputsUnderIt
-):
-    pass
-
-
-class TestReproForceMultiStage(MultiStageRun, test_repro.TestReproForce):
-    pass
-
-
-class TestReproChangedCodeMultiStage(
-    MultiStageRun, test_repro.TestReproChangedCode
-):
-    pass
-
-
-class TestReproChangedDataMultiStage(
-    MultiStageRun, test_repro.TestReproChangedData
-):
-    pass
-
-
-class TestReproDry(MultiStageRun, test_repro.TestReproDry):
-    pass
-
-
-class TestReproUpToDateMultiStage(MultiStageRun, test_repro.TestReproUpToDate):
-    pass
-
-
-class TestReproChangedDeepDataMultiStage(
-    MultiStageRun, test_repro.TestReproChangedDeepData
-):
-    pass
-
-
-class TestReproPipelineMultiStage(MultiStageRun, test_repro.TestReproPipeline):
-    pass
-
-
-class TestReproPipelinesMultiStage(
-    MultiStageRun, test_repro.TestReproPipelines
-):
-    pass
-
-
-class TestReproFrozenMultiStage(MultiStageRun, test_repro.TestReproFrozen):
-    pass
-
-
-class TestReproFrozenCallbackMultiStage(
-    MultiStageRun, test_repro.TestReproFrozenCallback
-):
-    pass
-
-
-class TestReproFrozenUnchangedMultiStage(
-    MultiStageRun, test_repro.TestReproFrozenUnchanged
-):
-    pass
-
-
-class TestReproPhonyMultiStage(MultiStageRun, test_repro.TestReproPhony):
-    pass
-
-
-class TestCmdReproMultiStage(MultiStageRun, test_repro.TestCmdRepro):
-    pass
-
-
-class TestReproAllPipelinesMultiStage(
-    MultiStageRun, test_repro.TestReproAllPipelines
-):
-    pass
-
-
-class TestReproNoCommit(MultiStageRun, test_repro.TestReproNoCommit):
-    pass
-
-
-class TestNonExistingOutputMultiStage(
-    MultiStageRun, test_repro.TestNonExistingOutput
-):
-    pass
-
-
-class TestReproAlreadyCachedMultiStage(
-    MultiStageRun, test_repro.TestReproAlreadyCached
-):
-    pass
-
-
-class TestReproChangedDirMultiStage(
-    MultiStageRun, test_repro.TestReproChangedDir
-):
-    pass
-
-
-class TestReproChangedDirDataMultiStage(
-    MultiStageRun, test_repro.TestReproChangedDirData
-):
-    pass
 
 
 def test_non_existing_stage_name(tmp_dir, dvc, run_copy):
@@ -300,10 +157,11 @@ def test_repro_when_cmd_changes(tmp_dir, dvc, run_copy, mocker):
     )
 
 
-def test_repro_when_new_deps_is_added_in_dvcfile(tmp_dir, dvc, run_copy):
+def test_repro_when_new_deps_is_added_in_dvcfile(
+    tmp_dir, dvc, run_copy, copy_script
+):
     from dvc.dvcfile import Dvcfile
 
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
     tmp_dir.gen({"foo": "foo", "bar": "bar"})
     stage = dvc.run(
         cmd="python copy.py {} {}".format("foo", "foobar"),
@@ -322,10 +180,9 @@ def test_repro_when_new_deps_is_added_in_dvcfile(tmp_dir, dvc, run_copy):
     assert dvc.reproduce(target)[0] == stage
 
 
-def test_repro_when_new_outs_is_added_in_dvcfile(tmp_dir, dvc):
+def test_repro_when_new_outs_is_added_in_dvcfile(tmp_dir, dvc, copy_script):
     from dvc.dvcfile import Dvcfile
 
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
     tmp_dir.gen({"foo": "foo", "bar": "bar"})
     stage = dvc.run(
         cmd="python copy.py {} {}".format("foo", "foobar"),
@@ -344,10 +201,9 @@ def test_repro_when_new_outs_is_added_in_dvcfile(tmp_dir, dvc):
     assert dvc.reproduce(target)[0] == stage
 
 
-def test_repro_when_new_deps_is_moved(tmp_dir, dvc):
+def test_repro_when_new_deps_is_moved(tmp_dir, dvc, copy_script):
     from dvc.dvcfile import Dvcfile
 
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
     tmp_dir.gen({"foo": "foo", "bar": "foo"})
     stage = dvc.run(
         cmd="python copy.py {} {}".format("foo", "foobar"),
@@ -360,7 +216,12 @@ def test_repro_when_new_deps_is_moved(tmp_dir, dvc):
 
     # hardcode values in source code, ignore sys.argv
     tmp_dir.gen(
-        "copy.py", COPY_SCRIPT.replace("func(*argv)", 'func("bar", "foobar")')
+        "copy.py",
+        """
+import shutil
+
+shutil.copyfile('bar', 'foobar')
+""",
     )
     from shutil import move
 
@@ -394,8 +255,7 @@ def test_repro_when_new_out_overlaps_others_stage_outs(tmp_dir, dvc):
         dvc.reproduce(":run-copy")
 
 
-def test_repro_when_new_deps_added_does_not_exist(tmp_dir, dvc):
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
+def test_repro_when_new_deps_added_does_not_exist(tmp_dir, dvc, copy_script):
     tmp_dir.gen("foo", "foo")
     (tmp_dir / PIPELINE_FILE).dump(
         {
@@ -412,8 +272,7 @@ def test_repro_when_new_deps_added_does_not_exist(tmp_dir, dvc):
         dvc.reproduce(":run-copy")
 
 
-def test_repro_when_new_outs_added_does_not_exist(tmp_dir, dvc):
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
+def test_repro_when_new_outs_added_does_not_exist(tmp_dir, dvc, copy_script):
     tmp_dir.gen("foo", "foo")
     (tmp_dir / PIPELINE_FILE).dump(
         {
@@ -430,8 +289,7 @@ def test_repro_when_new_outs_added_does_not_exist(tmp_dir, dvc):
         dvc.reproduce(":run-copy")
 
 
-def test_repro_when_lockfile_gets_deleted(tmp_dir, dvc):
-    tmp_dir.gen("copy.py", COPY_SCRIPT)
+def test_repro_when_lockfile_gets_deleted(tmp_dir, dvc, copy_script):
     tmp_dir.gen("foo", "foo")
     (tmp_dir / PIPELINE_FILE).dump(
         {

tests/func/test_run_cache.py

@@ -33,7 +33,7 @@ def test_restore(tmp_dir, dvc, run_copy, mocker):
 
     (stage,) = dvc.reproduce("copy-foo-bar")
 
-    mock_restore.assert_called_once_with(stage)
+    mock_restore.assert_called_once_with(stage, dry=False)
     mock_run.assert_not_called()
     assert (tmp_dir / "bar").exists() and not (tmp_dir / "foo").unlink()
     assert (tmp_dir / PIPELINE_LOCK).exists()
@@ -100,7 +100,7 @@ def test_memory_for_multiple_runs_of_same_stage(
     assert (tmp_dir / PIPELINE_LOCK).exists()
     assert (tmp_dir / "bar").read_text() == "foobar"
     mock_run.assert_not_called()
-    mock_restore.assert_called_once_with(stage)
+    mock_restore.assert_called_once_with(stage, dry=False)
     mock_restore.reset_mock()
 
     (tmp_dir / PIPELINE_LOCK).unlink()
@@ -109,7 +109,7 @@ def test_memory_for_multiple_runs_of_same_stage(
 
     assert (tmp_dir / "bar").read_text() == "foo"
     mock_run.assert_not_called()
-    mock_restore.assert_called_once_with(stage)
+    mock_restore.assert_called_once_with(stage, dry=False)
     assert (tmp_dir / "bar").exists() and not (tmp_dir / "foo").unlink()
     assert (tmp_dir / PIPELINE_LOCK).exists()
 
@@ -138,7 +138,7 @@ def test_memory_runs_of_multiple_stages(tmp_dir, dvc, run_copy, mocker):
     assert (tmp_dir / "foo.bak").read_text() == "foo"
     assert (tmp_dir / PIPELINE_LOCK).exists()
     mock_run.assert_not_called()
-    mock_restore.assert_called_once_with(stage)
+    mock_restore.assert_called_once_with(stage, dry=False)
     mock_restore.reset_mock()
 
     (stage,) = dvc.reproduce("backup-bar")
@@ -146,7 +146,7 @@ def test_memory_runs_of_multiple_stages(tmp_dir, dvc, run_copy, mocker):
     assert (tmp_dir / "bar.bak").read_text() == "bar"
     assert (tmp_dir / PIPELINE_LOCK).exists()
     mock_run.assert_not_called()
-    mock_restore.assert_called_once_with(stage)
+    mock_restore.assert_called_once_with(stage, dry=False)
 
 
 def test_restore_pull(tmp_dir, dvc, run_copy, mocker, local_remote):
@@ -168,7 +168,7 @@ def test_restore_pull(tmp_dir, dvc, run_copy, mocker, local_remote):
 
     (stage,) = dvc.reproduce("copy-foo-bar", pull=True)
 
-    mock_restore.assert_called_once_with(stage, pull=True)
+    mock_restore.assert_called_once_with(stage, pull=True, dry=False)
     mock_run.assert_not_called()
     assert mock_checkout.call_count == 2
     assert (tmp_dir / "bar").exists() and not (tmp_dir / "foo").unlink()

tests/func/test_stage.py

@@ -1,10 +1,8 @@
 import os
-import tempfile
 
 import pytest
 
 from dvc.annotations import Annotation
-from dvc.cli import main
 from dvc.dvcfile import SingleStageFile
 from dvc.fs import LocalFileSystem
 from dvc.output import Output
@@ -15,7 +13,6 @@ from dvc.stage.utils import compute_md5
 from dvc.utils import dict_md5
 from dvc.utils.serialize import dump_yaml, load_yaml
 from dvc.utils.strictyaml import YAMLValidationError
-from tests.basic_env import TestDvc
 
 
 def test_cmd_obj():
@@ -71,90 +68,74 @@ def test_list():
     SingleStageFile.validate(d)
 
 
-class TestReload(TestDvc):
-    def test(self):
-        stages = self.dvc.add(self.FOO)
-        self.assertEqual(len(stages), 1)
-        stage = stages[0]
-        self.assertTrue(stage is not None)
+def test_reload(tmp_dir, dvc):
+    (stage,) = tmp_dir.dvc_gen("foo", "foo")
+    d = load_yaml(stage.relpath)
 
-        d = load_yaml(stage.relpath)
+    # NOTE: checking that reloaded stage didn't change its checksum
+    md5 = "11111111111111111111111111111111"
+    d[stage.PARAM_MD5] = md5
+    dump_yaml(stage.relpath, d)
 
-        # NOTE: checking that reloaded stage didn't change its checksum
-        md5 = "11111111111111111111111111111111"
-        d[stage.PARAM_MD5] = md5
-        dump_yaml(stage.relpath, d)
+    dvcfile = SingleStageFile(dvc, stage.relpath)
+    stage = dvcfile.stage
 
-        dvcfile = SingleStageFile(self.dvc, stage.relpath)
-        stage = dvcfile.stage
+    assert stage is not None
+    dvcfile.dump(stage)
 
-        self.assertTrue(stage is not None)
-        dvcfile.dump(stage)
-
-        d = load_yaml(stage.relpath)
-        self.assertEqual(d[stage.PARAM_MD5], md5)
+    d = load_yaml(stage.relpath)
+    assert d[stage.PARAM_MD5] == md5
 
 
-class TestDefaultWorkingDirectory(TestDvc):
-    def test_ignored_in_checksum(self):
-        stage = self.dvc.run(
-            cmd=f"echo test > {self.FOO}",
-            deps=[self.BAR],
-            outs=[self.FOO],
-            single_stage=True,
-        )
+def test_default_wdir_ignored_in_checksum(tmp_dir, dvc):
+    tmp_dir.gen("bar", "bar")
+    stage = dvc.run(
+        cmd="cp bar foo",
+        deps=["bar"],
+        outs=["foo"],
+        single_stage=True,
+    )
 
-        d = stage.dumpd()
-        self.assertNotIn(Stage.PARAM_WDIR, d.keys())
+    d = stage.dumpd()
+    assert Stage.PARAM_WDIR not in d.keys()
 
-        d = load_yaml(stage.relpath)
-        self.assertNotIn(Stage.PARAM_WDIR, d.keys())
+    d = load_yaml(stage.relpath)
+    assert Stage.PARAM_WDIR not in d.keys()
 
-        with self.dvc.lock:
-            stage = SingleStageFile(self.dvc, stage.relpath).stage
-            self.assertFalse(stage.changed())
+    with dvc.lock:
+        stage = SingleStageFile(dvc, stage.relpath).stage
+        assert not stage.changed()
 
 
-class TestExternalRemoteResolution(TestDvc):
-    def test_remote_output(self):
-        tmp_path = tempfile.mkdtemp()
-        storage = os.path.join(tmp_path, "storage")
-        file_path = os.path.join(storage, "file")
+def test_external_remote_output_resolution(tmp_dir, dvc, make_remote):
+    tmp_path = make_remote("tmp", default=False)
+    tmp_dir.add_remote(
+        url="remote://tmp/storage", name="storage", default=False
+    )
+    storage = tmp_path / "storage"
+    storage.mkdir()
+    file_path = storage / "file"
 
-        os.makedirs(storage)
+    dvc.run(
+        cmd=f"echo file > {file_path}",
+        outs_no_cache=["remote://storage/file"],
+        single_stage=True,
+    )
+    assert os.path.exists(file_path)
 
-        assert main(["remote", "add", "tmp", tmp_path]) == 0
-        assert main(["remote", "add", "storage", "remote://tmp/storage"]) == 0
-        assert (
-            main(
-                [
-                    "run",
-                    "--single-stage",
-                    "-O",
-                    "remote://storage/file",
-                    f"echo file > {file_path}",
-                ]
-            )
-            == 0
-        )
 
-        assert os.path.exists(file_path)
+def test_external_remote_dependency_resolution(tmp_dir, dvc, make_remote):
+    tmp_path = make_remote("tmp", default=False)
+    tmp_dir.add_remote(
+        url="remote://tmp/storage", name="storage", default=False
+    )
+    storage = tmp_path / "storage"
+    storage.mkdir()
+    file_path = storage / "file"
+    file_path.write_text("Isle of Dogs", encoding="utf-8")
 
-    def test_remote_dependency(self):
-        tmp_path = tempfile.mkdtemp()
-        storage = os.path.join(tmp_path, "storage")
-        file_path = os.path.join(storage, "file")
-
-        os.makedirs(storage)
-
-        with open(file_path, "w", encoding="utf-8") as fobj:
-            fobj.write("Isle of Dogs")
-
-        assert main(["remote", "add", "tmp", tmp_path]) == 0
-        assert main(["remote", "add", "storage", "remote://tmp/storage"]) == 0
-        assert main(["import-url", "remote://storage/file", "movie.txt"]) == 0
-
-        assert os.path.exists("movie.txt")
+    dvc.imp_url("remote://storage/file", "movie.txt")
+    assert (tmp_dir / "movie.txt").read_text() == "Isle of Dogs"
 
 
 def test_md5_ignores_comments(tmp_dir, dvc):

tests/func/test_unprotect.py

@@ -1,37 +1,27 @@
 import os
 
-from dvc.cli import main
-from tests.basic_env import TestDvc
 
+def test_unprotect(tmp_dir, dvc):
+    tmp_dir.gen("foo", "foo")
 
-class TestUnprotect(TestDvc):
-    def test(self):
-        ret = main(["config", "cache.type", "hardlink"])
-        self.assertEqual(ret, 0)
+    dvc.odb.local.cache_types = ["hardlink"]
+    dvc.add("foo")
+    cache = os.path.join(
+        ".dvc", "cache", "ac", "bd18db4cc2f85cedef654fccc4a4d8"
+    )
+    assert not os.access("foo", os.W_OK)
+    assert not os.access(cache, os.W_OK)
 
-        ret = main(["add", self.FOO])
-        self.assertEqual(ret, 0)
+    dvc.unprotect("foo")
+    assert os.access("foo", os.W_OK)
 
-        cache = os.path.join(
-            ".dvc", "cache", "ac", "bd18db4cc2f85cedef654fccc4a4d8"
-        )
+    if os.name == "nt":
+        # NOTE: cache is now unprotected, because NTFS doesn't allow
+        # deleting read-only files, so we have to try to set write perms
+        # on files that we try to delete, which propagates to the cache
+        # file. But it should be restored after the next cache check, hence
+        # why we call `dvc status` here.
+        assert os.access(cache, os.W_OK)
+        dvc.status()
 
-        self.assertFalse(os.access(self.FOO, os.W_OK))
-        self.assertFalse(os.access(cache, os.W_OK))
-
-        ret = main(["unprotect", self.FOO])
-        self.assertEqual(ret, 0)
-
-        self.assertTrue(os.access(self.FOO, os.W_OK))
-
-        if os.name == "nt":
-            # NOTE: cache is now unprotected, because NTFS doesn't allow
-            # deleting read-only files, so we have to try to set write perms
-            # on files that we try to delete, which propagates to the cache
-            # file. But it should be restored after the next cache check, hence
-            # why we call `dvc status` here.
-            self.assertTrue(os.access(cache, os.W_OK))
-            ret = main(["status"])
-            self.assertEqual(ret, 0)
-
-        self.assertFalse(os.access(cache, os.W_OK))
+    assert not os.access(cache, os.W_OK)

tests/func/test_used_objs.py

@@ -51,3 +51,16 @@ def test_from_gitfs_when_pwd_not_in_root(
 
     with wdir.chdir():
         assert dvc.used_objs([target], revs=[scm.get_rev()])
+
+
+def test_used_objs_push(tmp_dir, scm, dvc):
+    stage = tmp_dir.dvc_gen("foo", "foo")[0]
+    hash_info = stage.outs[0].hash_info
+
+    stage.outs[0].can_push = True
+    assert stage.get_used_objs(push=False) == {None: {hash_info}}
+    assert stage.get_used_objs(push=True) == {None: {hash_info}}
+
+    stage.outs[0].can_push = False
+    assert stage.get_used_objs(push=False) == {None: {hash_info}}
+    assert stage.get_used_objs(push=True) == {}

tests/func/test_version.py

@@ -16,7 +16,7 @@ def test_(tmp_dir, dvc, scm, capsys):
     assert re.search(rf"DVC version: {DVC_VERSION_REGEX}", out)
     assert re.search(f"Platform: {PYTHON_VERSION_REGEX} on .*", out)
     for subproject in SUBPROJECTS:
-        assert re.search(rf"{subproject} = {DVC_VERSION_REGEX}", out)
+        assert re.search(rf"{subproject} = .*", out)
 
     assert find_supported_remotes(out)
     assert re.search(r"Cache types: .*", out)

tests/func/utils/test_hydra.py

@@ -174,12 +174,25 @@ def test_compose_and_dump(tmp_dir, suffix, overrides, expected):
     from dvc.utils.hydra import compose_and_dump
 
     config_name = "config"
-    config_dir = hydra_setup(tmp_dir, "conf", "config")
     output_file = tmp_dir / f"params.{suffix}"
+    config_dir = hydra_setup(tmp_dir, "conf", "config")
     compose_and_dump(output_file, config_dir, config_name, overrides)
     assert output_file.parse() == expected
 
 
+@pytest.mark.skipif(sys.version_info >= (3, 11), reason="unsupported on 3.11")
+def test_compose_and_dump_yaml_handles_string(tmp_dir):
+    """Regression test for 8583"""
+    from dvc.utils.hydra import compose_and_dump
+
+    config = tmp_dir / "conf" / "config.yaml"
+    config.parent.mkdir()
+    config.write_text("foo: 'no'\n")
+    output_file = tmp_dir / "params.yaml"
+    compose_and_dump(output_file, str(config.parent), "config", [])
+    assert output_file.read_text() == "foo: 'no'\n"
+
+
 @pytest.mark.parametrize(
     "overrides, expected",
     [

tests/integration/plots/test_plots.py

@@ -456,9 +456,7 @@ def test_repo_with_config_plots(tmp_dir, capsys, repo_with_config_plots):
             "dvc.yaml::confusion_train_vs_test",
         ],
     )
-    assert html_result["dvc.yaml::linear_train_vs_test"]["data"][
-        "values"
-    ] == _update_datapoints(
+    ble = _update_datapoints(
         plots["data"]["linear_train.json"],
         {
             REVISION_FIELD: "linear_train.json",
@@ -470,4 +468,7 @@ def test_repo_with_config_plots(tmp_dir, capsys, repo_with_config_plots):
         },
     )
 
+    assert (
+        html_result["dvc.yaml::linear_train_vs_test"]["data"]["values"] == ble
+    )
     # TODO check json results once vscode is able to handle flexible plots

tests/scripts.py

@@ -0,0 +1,59 @@
+import pytest
+
+COPY_SCRIPT = """
+import os
+import shutil
+import sys
+
+if os.path.isfile(sys.argv[1]):
+    shutil.copyfile(sys.argv[1], sys.argv[2])
+else:
+    shutil.copytree(sys.argv[1], sys.argv[2])
+"""
+
+
+def _add_script(tmp_dir, path, contents=""):
+    script, *_ = tmp_dir.gen(path, contents)
+    if hasattr(tmp_dir, "scm"):
+        tmp_dir.scm_add(path, commit=f"add {path}")
+    return script.fs_path
+
+
+@pytest.fixture
+def append_foo_script(tmp_dir):
+    return _add_script(
+        tmp_dir,
+        "append_foo.py",
+        """
+import sys
+from pathlib import Path
+
+with Path(sys.argv[1]).open("a+", encoding="utf-8") as f:
+    f.write("foo")
+""",
+    )
+
+
+@pytest.fixture
+def copy_script(
+    tmp_dir,
+):
+    return _add_script(tmp_dir, "copy.py", COPY_SCRIPT)
+
+
+@pytest.fixture
+def head_script(tmp_dir):
+    """Output first line of each file to different file with '-1' appended.
+    Useful for tracking multiple outputs/dependencies which are not a copy
+    of each others.
+    """
+    return _add_script(
+        tmp_dir,
+        "head.py",
+        """
+import sys
+for file in sys.argv[1:]:
+    with open(file) as f, open(file +"-1","w+") as w:
+        w.write(f.readline())
+""",
+    )

tests/unit/command/test_diff.py

@@ -39,7 +39,7 @@ def test_default(mocker, capsys):
     }
     mocker.patch("dvc.repo.Repo.diff", return_value=diff)
 
-    assert 0 == cmd.run()
+    assert cmd.run() == 0
     assert (
         "Added:\n"
         "    file\n"
@@ -77,7 +77,7 @@ def test_show_hash(mocker, capsys):
         "not in cache": [],
     }
     mocker.patch("dvc.repo.Repo.diff", return_value=diff)
-    assert 0 == cmd.run()
+    assert cmd.run() == 0
 
     out, _ = capsys.readouterr()
     assert (
@@ -115,7 +115,7 @@ def test_show_json(mocker, capsys):
     }
     mocker.patch("dvc.repo.Repo.diff", return_value=diff)
 
-    assert 0 == cmd.run()
+    assert cmd.run() == 0
     out, _ = capsys.readouterr()
     assert '"added": [{"path": "file1"}, {"path": "file2"}]' in out
     assert '"deleted": []' in out
@@ -145,7 +145,7 @@ def test_show_json_and_hash(mocker, capsys):
     }
     mocker.patch("dvc.repo.Repo.diff", return_value=diff)
 
-    assert 0 == cmd.run()
+    assert cmd.run() == 0
     out, _ = capsys.readouterr()
     assert (
         '"added": [{"path": "file1", "hash": "11111111"}, '
@@ -180,7 +180,7 @@ def test_show_json_hide_missing(mocker, capsys):
     }
     mocker.patch("dvc.repo.Repo.diff", return_value=diff)
 
-    assert 0 == cmd.run()
+    assert cmd.run() == 0
     out, _ = capsys.readouterr()
     assert '"added": [{"path": "file1"}, {"path": "file2"}]' in out
     assert '"deleted": []' in out
@@ -200,7 +200,7 @@ def test_diff_show_markdown_and_hash(mocker, show_hash):
     mock_show_markdown = mocker.patch("dvc.commands.diff._show_markdown")
     mocker.patch("dvc.repo.Repo.diff", return_value=diff.copy())
 
-    assert 0 == cmd.run()
+    assert cmd.run() == 0
     mock_show_markdown.assert_called_once_with(diff, show_hash, False)
 
 
@@ -226,7 +226,7 @@ def test_no_changes(mocker, capsys, opts, show, expected):
     cmd = args.func(args)
     mocker.patch("dvc.repo.Repo.diff", return_value={})
 
-    assert 0 == cmd.run()
+    assert cmd.run() == 0
     out, _ = capsys.readouterr()
     assert expected == out.strip()
 
@@ -349,7 +349,7 @@ def test_hide_missing(mocker, capsys):
     }
     mocker.patch("dvc.repo.Repo.diff", return_value=diff)
 
-    assert 0 == cmd.run()
+    assert cmd.run() == 0
     out, _ = capsys.readouterr()
     assert (
         "Added:\n"

tests/unit/command/test_plots.py

@@ -178,7 +178,7 @@ def test_plots_diff_open(tmp_dir, dvc, mocker, capsys, plots_data, auto_open):
 def test_plots_diff_open_WSL(tmp_dir, dvc, mocker, plots_data):
     mocked_open = mocker.patch("webbrowser.open", return_value=True)
     mocked_uname_result = mocker.MagicMock()
-    mocked_uname_result.release = "Microsoft"
+    mocked_uname_result.release = "microsoft"
     mocker.patch("platform.uname", return_value=mocked_uname_result)
 
     cli_args = parse_args(

tests/unit/command/test_run.py

@@ -23,12 +23,6 @@ def test_run(mocker, dvc):
             "plots",
             "--plots-no-cache",
             "plots-no-cache",
-            "--live",
-            "live",
-            "--live-no-cache",
-            "live-no-cache",
-            "--live-no-summary",
-            "--live-no-html",
             "--file",
             "file",
             "--wdir",
@@ -74,10 +68,6 @@ def test_run(mocker, dvc):
         outs_persist_no_cache=["outs-persist-no-cache"],
         checkpoints=["checkpoints"],
         params=["file:param1,param2", "param3"],
-        live="live",
-        live_no_cache="live-no-cache",
-        live_no_summary=True,
-        live_no_html=True,
         fname="file",
         wdir="wdir",
         no_exec=True,
@@ -107,10 +97,6 @@ def test_run_args_from_cli(mocker, dvc):
         metrics_no_cache=[],
         plots=[],
         plots_no_cache=[],
-        live=None,
-        live_no_cache=None,
-        live_no_summary=False,
-        live_no_html=False,
         outs_persist=[],
         outs_persist_no_cache=[],
         checkpoints=[],
@@ -144,10 +130,6 @@ def test_run_args_with_spaces(mocker, dvc):
         metrics_no_cache=[],
         plots=[],
         plots_no_cache=[],
-        live=None,
-        live_no_cache=None,
-        live_no_summary=False,
-        live_no_html=False,
         outs_persist=[],
         outs_persist_no_cache=[],
         checkpoints=[],