[pre-commit.ci] pre-commit autoupdate (#10183)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.1.7 → v0.1.8](https://github.com/astral-sh/ruff-pre-commit/compare/v0.1.7...v0.1.8)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

.flake8

@@ -1,19 +0,0 @@
-[flake8]
-ignore=
-    # Whitespace before ':'
-    E203
-    # Too many leading '#' for block comment
-    E266
-    # Line break occurred before a binary operator
-    W503
-    # unindexed parameters in the str.format, see:
-    # https://pypi.org/project/flake8-string-format/
-    P1
-    # use `!r` instead of surrounding by quotes
-    B028
-max_line_length = 88
-max-complexity = 10
-select = B,C,E,F,W,T4,B902,T,P,TYP
-show_source = true
-count = true
-min_python_version = 3.8.0

.github/workflows/benchmarks.yaml

@@ -10,7 +10,7 @@ jobs:
     name: run benchmarks
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
             python-version: "3.11"
       - uses: iterative/dvc-bench@main

.github/workflows/build.yaml

@@ -0,0 +1,92 @@
+name: Build and upload package
+on:
+  push:
+    branches:
+    - main
+  release:
+    types:
+    - published
+  workflow_dispatch:
+
+env:
+  FORCE_COLOR: 1
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    name: Build & Verify package
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+
+    - uses: actions/setup-python@v5
+      with:
+        python-version: 3.8
+
+    - run: python -m pip install --upgrade pip setuptools_scm build twine
+
+    - name: Force version for Test PyPI upload
+      if: ${{ !startsWith(github.ref, 'refs/tags') }}
+      run: echo version=$(python -m setuptools_scm | awk -F+ '{print $1}' | tail -1) >> $GITHUB_ENV
+
+    - run: echo 'PKG = "pip"'>dvc/_build.py
+    - run: python -m build
+      env:
+        SETUPTOOLS_SCM_PRETEND_VERSION_FOR_DVC: ${{ env.version }}
+    - run: twine check --strict dist/*
+
+    - uses: actions/upload-artifact@v4
+      with:
+        name: Packages
+        path: dist/
+
+  test-pypi-publish:
+    name: Publish dev package to test.pypi.org
+    runs-on: ubuntu-latest
+    needs: build
+    if: ${{ github.event.action == 'published' || (github.repository == 'iterative/dvc' && github.event_name == 'push' && github.ref == 'refs/heads/main') }}
+
+    environment:
+      name: test-pypi
+      url: https://test.pypi.org/p/dvc
+
+    permissions:
+      id-token: write
+
+    steps:
+    - uses: actions/download-artifact@v4
+      with:
+        name: Packages
+        path: dist
+
+    - name: Upload package to Test PyPI
+      uses: pypa/gh-action-pypi-publish@release/v1
+      with:
+        repository-url: https://test.pypi.org/legacy/
+        skip-existing: true
+
+  pypi-publish:
+    name: Publish released package to pypi.org
+    runs-on: ubuntu-latest
+    needs: build
+    if: github.event.action == 'published'
+
+    environment:
+      name: pypi
+      url: https://pypi.org/p/dvc
+
+    permissions:
+      id-token: write
+
+    steps:
+    - uses: actions/download-artifact@v4
+      with:
+        name: Packages
+        path: dist
+
+    - name: Upload package to PyPI
+      uses: pypa/gh-action-pypi-publish@release/v1

.github/workflows/codeql.yml

@@ -28,12 +28,13 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v2
+      uses: github/codeql-action/init@v3
       with:
         languages: ${{ matrix.language }}
+        queries: security-extended
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2
+      uses: github/codeql-action/analyze@v3

.github/workflows/packages.yaml

@@ -1,51 +0,0 @@
-name: Build packages
-on:
-  push:
-    branches:
-    - main
-  release:
-    types: [released, prereleased]
-  workflow_dispatch:
-
-permissions:  # added using https://github.com/step-security/secure-workflows
-  contents: read
-
-jobs:
-  pip:
-    runs-on: ubuntu-20.04
-    permissions:
-      id-token: write
-    steps:
-    - uses: actions/checkout@v3
-      with:
-        fetch-depth: 0
-
-    - name: Set up Python 3.8
-      uses: actions/setup-python@v4
-      with:
-        python-version: 3.8
-
-    - name: Install
-      run: pip install --upgrade pip wheel
-
-    - name: Force version for Test PyPI uploads
-      if: ${{ !startsWith(github.ref, 'refs/tags') }}
-      run: |
-        pip install setuptools_scm
-        echo version=$(python -m setuptools_scm | awk -F+ '{print $1}' | tail -1) >> $GITHUB_ENV
-
-    - name: Build packages
-      run: ./scripts/build_package.sh
-      env:
-        SETUPTOOLS_SCM_PRETEND_VERSION: ${{ env.version }}
-
-    - name: Publish packages to PyPI
-      if: github.event_name == 'release'
-      uses: pypa/gh-action-pypi-publish@release/v1
-
-    - name: Publish to Test PyPI
-      if: ${{ github.event_name == 'release' || (github.event_name == 'push' && github.ref == 'refs/heads/main') }}
-      uses: pypa/gh-action-pypi-publish@release/v1
-      with:
-        repository_url: https://test.pypi.org/legacy/
-        skip_existing: true

.github/workflows/plugin_tests.yaml

@@ -23,18 +23,18 @@ jobs:
         plugin: ["dvc-s3"]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         path: dvc
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         repository: iterative/${{ matrix.plugin }}
         ref: main
         path: ${{ matrix.plugin }}
 
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.pyv }}
         cache: pip

.github/workflows/tests.yaml

@@ -23,14 +23,14 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-20.04, windows-latest, macos-latest]
-        pyv: ["3.8", "3.9", "3.10", "3.11"]
+        pyv: ["3.8", "3.9", "3.10", "3.11", "3.12"]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.pyv }}
         cache: pip
@@ -66,7 +66,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Slack Notification
-      uses: rtCamp/[email protected].0
+      uses: rtCamp/[email protected].1
       env:
         SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
         SLACK_COLOR: ${{ job.status }}

.pre-commit-config.yaml

@@ -2,11 +2,11 @@ default_language_version:
   python: python3
 
 ci:
-  skip: [mypy, pylint, dvc-pre-commit]
+  skip: [mypy, dvc-pre-commit]
 
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.4.0
+    rev: v4.5.0
     hooks:
       - id: check-added-large-files
       - id: check-case-conflict
@@ -17,57 +17,21 @@ repos:
         args: ['--assume-in-merge']
       - id: check-toml
       - id: check-yaml
-      - id: debug-statements
-        exclude: "dvc/_debug.py"
       - id: end-of-file-fixer
       - id: mixed-line-ending
       - id: sort-simple-yaml
       - id: trailing-whitespace
-  - repo: https://github.com/lovesegfault/beautysh
-    rev: v6.2.1
-    hooks:
-      - id: beautysh
-        args: ["-i", "2"]
-  - repo: https://github.com/asottile/pyupgrade
-    rev: v3.3.1
-    hooks:
-      - id: pyupgrade
-        args:
-          - --py38-plus
-  - repo: https://github.com/psf/black
-    rev: 23.3.0
-    hooks:
-      - id: black
-  - repo: https://github.com/PyCQA/isort
-    rev: 5.12.0
-    hooks:
-      - id: isort
-  - repo: https://github.com/charliermarsh/ruff-pre-commit
-    rev: 'v0.0.261'
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: 'v0.1.8'
     hooks:
       - id: ruff
+        args: [--fix, --exit-non-zero-on-fix]
+      - id: ruff-format
   - repo: https://github.com/codespell-project/codespell
-    rev: v2.2.4
+    rev: v2.2.6
     hooks:
       - id: codespell
         additional_dependencies: ["tomli"]
-  - repo: https://github.com/PyCQA/flake8
-    rev: 6.0.0
-    hooks:
-      - id: flake8
-        additional_dependencies:
-          - flake8-bugbear
-          - flake8-comprehensions
-          - flake8-debugger
-          - flake8-string-format
-          - flake8-typing-imports
-  - repo: https://github.com/PyCQA/bandit
-    rev: '1.7.5'
-    hooks:
-    - id: bandit
-      args: ["-c", "pyproject.toml", "--quiet", "--format=custom"]
-      files: ^dvc/
-      additional_dependencies: [".[toml]"]
   - repo: local
     hooks:
     - id: mypy
@@ -77,13 +41,6 @@ repos:
       language: system
       types: [python]
       require_serial: true
-    - id: pylint
-      name: pylint
-      entry: pylint
-      files: ^dvc/
-      language: system
-      types: [python]
-      require_serial: true
   - hooks:
       - args:
           - git-hook

README.rst

@@ -90,8 +90,8 @@ Their results can be filtered and compared based on hyperparameters and metrics,
 
 .. _`VS Code Extension`:
 
-Visual Studio Code Extension
-============================
+VS Code Extension
+=================
 
 |VS Code|
 
@@ -280,8 +280,8 @@ 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 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
+.. |Packages| image:: https://img.shields.io/badge/deb|pkg|rpm|exe-blue
+   :target: https://dvc.org/doc/install
    :alt: deb|pkg|rpm|exe
 
 .. |DOI| image:: https://img.shields.io/badge/DOI-10.5281/zenodo.3677553-blue.svg

dvc/__pyinstaller/__init__.py

@@ -0,0 +1,5 @@
+import os
+
+
+def get_hook_dirs():
+    return [os.path.dirname(__file__)]

dvc/__pyinstaller/hook-asyncssh.py

@@ -1 +1,2 @@
+# ruff: noqa: N999
 hiddenimports = ["win32timezone"]

dvc/__pyinstaller/hook-celery.py

@@ -1,4 +1,5 @@
-# pylint: disable=import-error
+# ruff: noqa: N999
+
 from PyInstaller.utils.hooks import collect_submodules, is_module_or_submodule
 
 # Celery dynamically imports most celery internals at runtime

dvc/__pyinstaller/hook-dvc.py

@@ -1,4 +1,5 @@
-from PyInstaller.utils.hooks import copy_metadata  # pylint:disable=import-error
+# ruff: noqa: N999
+from PyInstaller.utils.hooks import copy_metadata
 
 # needed for `dvc doctor` to show dep versions
 datas = copy_metadata("adlfs", recursive=True)
@@ -21,6 +22,7 @@ hiddenimports = [
     "dvc_hdfs",
     "dvc_oss",
     "dvc_s3",
+    "dvc_ssh",
     "dvc_webdav",
     "dvc_webhdfs",
     # https://github.com/pypa/setuptools/issues/1963

dvc/__pyinstaller/hook-dvc.utils.flatten.py

@@ -0,0 +1,4 @@
+# ruff: noqa: N999
+from PyInstaller.utils.hooks import copy_metadata
+
+datas = copy_metadata("flatten-dict")

dvc/__pyinstaller/hook-dvc_task.py

@@ -1,4 +1,5 @@
-# pylint: disable=import-error
+# ruff: noqa: N999
+
 from PyInstaller.utils.hooks import collect_submodules
 
 hiddenimports = collect_submodules("dvc_task")

dvc/__pyinstaller/hook-fsspec.py

@@ -1 +1,2 @@
+# ruff: noqa: N999
 hiddenimports = ["fsspec.implementations.memory"]

dvc/__pyinstaller/hook-pydrive2.py

@@ -0,0 +1,4 @@
+# ruff: noqa: N999
+from PyInstaller.utils.hooks import copy_metadata
+
+datas = copy_metadata("pydrive2")

dvc/_debug.py

@@ -14,7 +14,7 @@ def viztracer_profile(
     log_async: bool = False,
 ):
     try:
-        import viztracer  # pylint: disable=import-error
+        import viztracer
     except ImportError:
         print("Failed to run profiler, viztracer is not installed")  # noqa: T201
         yield
@@ -23,10 +23,11 @@ def viztracer_profile(
     tracer = viztracer.VizTracer(max_stack_depth=depth, log_async=log_async)
 
     tracer.start()
-    yield
-    tracer.stop()
-
-    tracer.save(path() if callable(path) else path)
+    try:
+        yield
+    finally:
+        tracer.stop()
+        tracer.save(path() if callable(path) else path)
 
 
 @contextmanager
@@ -36,7 +37,7 @@ def yappi_profile(
     separate_threads: Optional[bool] = False,
 ):
     try:
-        import yappi  # pylint: disable=import-error
+        import yappi
     except ImportError:
         print("Failed to run profiler, yappi is not installed")  # noqa: T201
         yield
@@ -45,38 +46,40 @@ def yappi_profile(
     yappi.set_clock_type("wall" if wall_clock else "cpu")
 
     yappi.start()
-    yield
-    yappi.stop()
+    try:
+        yield
+    finally:
+        yappi.stop()
 
-    threads = yappi.get_thread_stats()
-    stats = {}
-    if separate_threads:
-        for thread in threads:
-            ctx_id = thread.id
-            stats[ctx_id] = yappi.get_func_stats(ctx_id=ctx_id)
-    else:
-        stats[None] = yappi.get_func_stats()
-
-    fpath = path() if callable(path) else path
-    for ctx_id, st in stats.items():
-        if fpath:
-            out = f"{fpath}-{ctx_id}" if ctx_id is not None else fpath
-            st.save(out, type="callgrind")
+        threads = yappi.get_thread_stats()
+        stats = {}
+        if separate_threads:
+            for thread in threads:
+                ctx_id = thread.id
+                stats[ctx_id] = yappi.get_func_stats(ctx_id=ctx_id)
         else:
-            if ctx_id is not None:
-                print(f"\nThread {ctx_id}")  # noqa: T201
-            st.print_all()  # pylint:disable=no-member
-            if ctx_id is None:
-                threads.print_all()  # pylint:disable=no-member
+            stats[None] = yappi.get_func_stats()
 
-    yappi.clear_stats()
+        fpath = path() if callable(path) else path
+        for ctx_id, st in stats.items():
+            if fpath:
+                out = f"{fpath}-{ctx_id}" if ctx_id is not None else fpath
+                st.save(out, type="callgrind")
+            else:
+                if ctx_id is not None:
+                    print(f"\nThread {ctx_id}")  # noqa: T201
+                st.print_all()
+                if ctx_id is None:
+                    threads.print_all()
+
+        yappi.clear_stats()
 
 
 @contextmanager
 def instrument(html_output=False):
     """Run a statistical profiler"""
     try:
-        from pyinstrument import Profiler  # pylint: disable=import-error
+        from pyinstrument import Profiler
     except ImportError:
         print("Failed to run profiler, pyinstrument is not installed")  # noqa: T201
         yield
@@ -85,13 +88,15 @@ def instrument(html_output=False):
     profiler = Profiler()
 
     profiler.start()
-    yield
-    profiler.stop()
+    try:
+        yield
+    finally:
+        profiler.stop()
 
-    if html_output:
-        profiler.open_in_browser()
-        return
-    print(profiler.output_text(unicode=True, color=True))  # noqa: T201
+        if html_output:
+            profiler.open_in_browser()
+        else:
+            print(profiler.output_text(unicode=True, color=True))  # noqa: T201
 
 
 @contextmanager
@@ -102,22 +107,23 @@ def profile(dump_path: Optional[str] = None):
     prof = cProfile.Profile()
     prof.enable()
 
-    yield
-
-    prof.disable()
-    if not dump_path:
-        prof.print_stats(sort="cumtime")
-        return
-    prof.dump_stats(dump_path)
+    try:
+        yield
+    finally:
+        prof.disable()
+        if dump_path:
+            prof.dump_stats(dump_path)
+        else:
+            prof.print_stats(sort="cumtime")
 
 
 @contextmanager
 def debug():
     try:
         yield
-    except Exception:  # pylint: disable=broad-except
+    except Exception:
         try:
-            import ipdb as pdb  # noqa: T100, pylint: disable=import-error
+            import ipdb as pdb  # noqa: T100
         except ImportError:
             import pdb  # type: ignore[no-redef]  # noqa: T100
         pdb.post_mortem()
@@ -145,7 +151,8 @@ def show_stack():
         signal.signal(signal.SIGQUIT, _sigshow)
 
     try:
-        signal.signal(signal.SIGINFO, _sigshow)  # only available on macOS
+        # only available on macOS
+        signal.signal(signal.SIGINFO, _sigshow)  # type: ignore[attr-defined]
     except AttributeError:
         pass
     yield
@@ -198,33 +205,84 @@ def debugtools(args: Optional["Namespace"] = None, **kwargs):
 def add_debugging_flags(parser):
     from argparse import SUPPRESS
 
-    parser.add_argument("--cprofile", action="store_true", default=False, help=SUPPRESS)
-    parser.add_argument("--yappi", action="store_true", default=False, help=SUPPRESS)
+    # For detailed info see:
+    # https://github.com/iterative/dvc/wiki/Debugging,-Profiling-and-Benchmarking-DVC
+    args, _ = parser.parse_known_args()
+    verbose = args.verbose
+
+    def debug_help(msg):
+        if verbose:
+            return msg
+        return SUPPRESS
+
+    parser = parser.add_argument_group("debug options")
+
+    parser.add_argument(
+        "--cprofile",
+        action="store_true",
+        default=False,
+        help=debug_help("Generate cprofile data for tools like snakeviz / tuna"),
+    )
+    parser.add_argument(
+        "--cprofile-dump", help=debug_help("Location to dump cprofile file")
+    )
+    parser.add_argument(
+        "--yappi",
+        action="store_true",
+        default=False,
+        help=debug_help(
+            "Generate a callgrind file for use with tools like "
+            "kcachegrind / qcachegrind"
+        ),
+    )
     parser.add_argument(
         "--yappi-separate-threads",
         action="store_true",
         default=False,
-        help=SUPPRESS,
+        help=debug_help("Generate one callgrind file per thread"),
     )
     parser.add_argument(
-        "--viztracer", action="store_true", default=False, help=SUPPRESS
-    )
-    parser.add_argument("--viztracer-depth", type=int, help=SUPPRESS)
-    parser.add_argument(
-        "--viztracer-async", action="store_true", default=False, help=SUPPRESS
-    )
-    parser.add_argument("--cprofile-dump", help=SUPPRESS)
-    parser.add_argument("--pdb", action="store_true", default=False, help=SUPPRESS)
-    parser.add_argument(
-        "--instrument", action="store_true", default=False, help=SUPPRESS
+        "--viztracer",
+        action="store_true",
+        default=False,
+        help=debug_help("Generate a viztracer file for use with vizviewer"),
     )
     parser.add_argument(
-        "--instrument-open", action="store_true", default=False, help=SUPPRESS
+        "--viztracer-depth",
+        type=int,
+        help=debug_help("Set viztracer maximum stack depth"),
+    )
+    parser.add_argument(
+        "--viztracer-async",
+        action="store_true",
+        default=False,
+        help=debug_help("Treat async tasks as threads"),
+    )
+    parser.add_argument(
+        "--pdb",
+        action="store_true",
+        default=False,
+        help=debug_help("Drop into the pdb/ipdb debugger on any exception"),
+    )
+    parser.add_argument(
+        "--instrument",
+        action="store_true",
+        default=False,
+        help=debug_help("Use pyinstrument CLI profiler"),
+    )
+    parser.add_argument(
+        "--instrument-open",
+        action="store_true",
+        default=False,
+        help=debug_help("Use pyinstrument web profiler"),
     )
     parser.add_argument(
         "--show-stack",
         "--ss",
         action="store_true",
         default=False,
-        help=SUPPRESS,
+        help=debug_help(
+            r"Use Ctrl+T on macOS or Ctrl+\ on Linux to print the stack "
+            "frame currently executing. Unavailable on Windows."
+        ),
     )

dvc/analytics.py

@@ -1,10 +1,11 @@
 import json
-import logging
 import os
 
-from .env import DVC_NO_ANALYTICS
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+from .env import DVC_ANALYTICS_ENDPOINT, DVC_NO_ANALYTICS
+
+logger = logger.getChild(__name__)
 
 
 def collect_and_send_report(args=None, return_code=None):
@@ -34,6 +35,8 @@ def collect_and_send_report(args=None, return_code=None):
 
     with tempfile.NamedTemporaryFile(delete=False, mode="w") as fobj:
         json.dump(report, fobj)
+
+    logger.trace("Saving analytics report to %s", fobj.name)
     daemon(["analytics", fobj.name])
 
 
@@ -65,7 +68,7 @@ def send(path):
     """
     import requests
 
-    url = "https://analytics.dvc.org"
+    url = os.environ.get(DVC_ANALYTICS_ENDPOINT, "https://analytics.dvc.org")
     headers = {"content-type": "application/json"}
 
     with open(path, encoding="utf-8") as fobj:
@@ -73,11 +76,16 @@ def send(path):
 
     report.update(_runtime_info())
 
+    logger.debug("uploading report to %s", url)
+    logger.trace("Sending %s to %s", report, url)
+
     try:
         requests.post(url, json=report, headers=headers, timeout=5)
-    except requests.exceptions.RequestException:
-        logger.debug("failed to send analytics report", exc_info=True)
+    except requests.exceptions.RequestException as e:
+        logger.trace("", exc_info=True)
+        logger.debug("failed to send analytics report %s", str(e))
 
+    logger.trace("removing report %s", path)
     os.remove(path)
 
 

dvc/annotations.py

@@ -46,7 +46,7 @@ ANNOTATION_SCHEMA = {
     Annotation.PARAM_LABELS: [str],
     Annotation.PARAM_META: object,
 }
-ARTIFACT_SCHEMA = {
+ARTIFACT_SCHEMA: Dict[Any, Any] = {
     Required(Artifact.PARAM_PATH): str,
     **ANNOTATION_SCHEMA,  # type: ignore[arg-type]
 }

dvc/api/__init__.py

@@ -1,7 +1,7 @@
 from dvc.fs.dvc import _DVCFileSystem as DVCFileSystem
 
-from .data import open  # pylint: disable=redefined-builtin
-from .data import get_url, read
+from .artifacts import artifacts_show
+from .data import get_url, open, read
 from .experiments import exp_save, exp_show
 from .scm import all_branches, all_commits, all_tags
 from .show import metrics_show, params_show
@@ -10,6 +10,7 @@ __all__ = [
     "all_branches",
     "all_commits",
     "all_tags",
+    "artifacts_show",
     "exp_save",
     "exp_show",
     "get_url",

dvc/api/artifacts.py

@@ -0,0 +1,47 @@
+from typing import Any, Dict, Optional
+
+from dvc.repo import Repo
+
+
+def artifacts_show(
+    name: str,
+    version: Optional[str] = None,
+    stage: Optional[str] = None,
+    repo: Optional[str] = None,
+) -> Dict[str, str]:
+    """
+    Return path and Git revision for an artifact in a DVC project.
+
+    The resulting path and revision can be used in conjunction with other dvc.api
+    calls to open and read the artifact.
+
+    Args:
+        name (str): name of the artifact to open.
+        version (str, optional): version of the artifact to open. Defaults to
+            the latest version.
+        stage (str, optional): name of the model registry stage.
+        repo: (str, optional): path or URL for the DVC repo.
+
+    Returns:
+        Dictionary of the form:
+            {
+                "rev": ...,
+                "path": ...,
+            }
+
+    Raises:
+        dvc.exceptions.ArtifactNotFoundError: The specified artifact was not found in
+            the repo.
+    """
+    if version and stage:
+        raise ValueError("Artifact version and stage are mutually exclusive.")
+
+    repo_kwargs: Dict[str, Any] = {
+        "subrepos": True,
+        "uninitialized": True,
+    }
+    with Repo.open(repo, **repo_kwargs) as _repo:
+        rev = _repo.artifacts.get_rev(name, version=version, stage=stage)
+        with _repo.switch(rev):
+            path = _repo.artifacts.get_path(name)
+        return {"rev": rev, "path": path}

dvc/api/data.py

@@ -36,25 +36,26 @@ def get_url(path, repo=None, rev=None, remote=None):
     NOTE: This function does not check for the actual existence of the file or
     directory in the remote storage.
     """
-    with Repo.open(repo, rev=rev, subrepos=True, uninitialized=True) as _repo:
-        with _wrap_exceptions(_repo, path):
-            fs_path = _repo.dvcfs.from_os_path(path)
+    from dvc.config import NoRemoteError
+    from dvc_data.index import StorageKeyError
 
-            with reraise(FileNotFoundError, PathMissingError(path, repo)):
-                info = _repo.dvcfs.info(fs_path)
-
-            dvc_info = info.get("dvc_info")
-            if not dvc_info:
-                raise OutputNotFoundError(path, repo)
-
-            dvc_repo = info["repo"]  # pylint: disable=unsubscriptable-object
-            md5 = dvc_info["md5"]
-
-            return dvc_repo.cloud.get_url_for(remote, checksum=md5)
+    repo_kwargs: Dict[str, Any] = {}
+    if remote:
+        repo_kwargs["config"] = {"core": {"remote": remote}}
+    with Repo.open(
+        repo, rev=rev, subrepos=True, uninitialized=True, **repo_kwargs
+    ) as _repo:
+        index, entry = _repo.get_data_index_entry(path)
+        with reraise(
+            (StorageKeyError, ValueError),
+            NoRemoteError(f"no remote specified in {_repo}"),
+        ):
+            remote_fs, remote_path = index.storage_map.get_remote(entry)
+            return remote_fs.unstrip_protocol(remote_path)
 
 
 class _OpenContextManager(GCM):
-    def __init__(self, func, args, kwds):  # pylint: disable=super-init-not-called
+    def __init__(self, func, args, kwds):
         self.gen = func(*args, **kwds)
         self.func, self.args, self.kwds = (  # type: ignore[assignment]
             func,
@@ -66,7 +67,7 @@ class _OpenContextManager(GCM):
         raise AttributeError("dvc.api.open() should be used in a with statement.")
 
 
-def open(  # noqa, pylint: disable=redefined-builtin
+def open(  # noqa: A001
     path: str,
     repo: Optional[str] = None,
     rev: Optional[str] = None,
@@ -74,6 +75,7 @@ def open(  # noqa, pylint: disable=redefined-builtin
     mode: str = "r",
     encoding: Optional[str] = None,
     config: Optional[Dict[str, Any]] = None,
+    remote_config: Optional[Dict[str, Any]] = None,
 ):
     """
     Opens a file tracked in a DVC project.
@@ -117,6 +119,9 @@ def open(  # noqa, pylint: disable=redefined-builtin
             Mirrors the namesake parameter in builtin `open()`_.
         config(dict, optional): config to be passed to the DVC repository.
             Defaults to None.
+        remote_config(dict, optional): remote config to be passed to the DVC
+            repository.
+            Defaults to None.
 
     Returns:
         _OpenContextManager: A context manager that generatse a corresponding
@@ -213,22 +218,27 @@ def open(  # noqa, pylint: disable=redefined-builtin
         "mode": mode,
         "encoding": encoding,
         "config": config,
+        "remote_config": remote_config,
     }
     return _OpenContextManager(_open, args, kwargs)
 
 
-def _open(path, repo=None, rev=None, remote=None, mode="r", encoding=None, config=None):
-    if remote:
-        if config is not None:
-            raise ValueError(
-                "can't specify both `remote` and `config` at the same time"
-            )
-        config = {"core": {"remote": remote}}
-
+def _open(
+    path,
+    repo=None,
+    rev=None,
+    remote=None,
+    mode="r",
+    encoding=None,
+    config=None,
+    remote_config=None,
+):
     repo_kwargs: Dict[str, Any] = {
         "subrepos": True,
         "uninitialized": True,
+        "remote": remote,
         "config": config,
+        "remote_config": remote_config,
     }
 
     with Repo.open(repo, rev=rev, **repo_kwargs) as _repo:
@@ -264,7 +274,16 @@ def _open(path, repo=None, rev=None, remote=None, mode="r", encoding=None, confi
                 raise DvcIsADirectoryError(f"'{path}' is a directory") from exc
 
 
-def read(path, repo=None, rev=None, remote=None, mode="r", encoding=None, config=None):
+def read(
+    path,
+    repo=None,
+    rev=None,
+    remote=None,
+    mode="r",
+    encoding=None,
+    config=None,
+    remote_config=None,
+):
     """
     Returns the contents of a tracked file (by DVC or Git). For Git repos, HEAD
     is used unless a rev argument is supplied. The default remote is tried
@@ -278,5 +297,6 @@ def read(path, repo=None, rev=None, remote=None, mode="r", encoding=None, config
         mode=mode,
         encoding=encoding,
         config=config,
+        remote_config=remote_config,
     ) as fd:
         return fd.read()

dvc/api/experiments.py

@@ -53,7 +53,7 @@ def _postprocess(exp_rows):
                 except ValueError:
                     exp_row[k] = v_str
 
-            if not exp_row[k]:
+            elif not exp_row[k]:
                 exp_row[k] = None
 
     return exp_rows

dvc/api/show.py

@@ -7,10 +7,6 @@ from funcy import first
 from dvc.repo import Repo
 
 
-def _onerror_raise(exception: Exception, *args, **kwargs):
-    raise exception
-
-
 def _postprocess(results):
     processed: Dict[str, Dict] = {}
     for rev, rev_data in results.items():
@@ -23,7 +19,6 @@ def _postprocess(results):
         for file_data in rev_data["data"].values():
             for k in file_data["data"]:
                 counts[k] += 1
-
         for file_name, file_data in rev_data["data"].items():
             to_merge = {
                 (k if counts[k] == 1 else f"{file_name}:{k}"): v
@@ -138,13 +133,17 @@ def metrics_show(
     .. _Git revision:
         https://git-scm.com/docs/revisions
     """
+    from dvc.repo.metrics.show import to_relpath
 
     with Repo.open(repo, config=config) as _repo:
         metrics = _repo.metrics.show(
             targets=targets,
             revs=rev if rev is None else [rev],
-            onerror=_onerror_raise,
+            on_error="raise",
         )
+        metrics = {
+            k: to_relpath(_repo.fs, _repo.root_dir, v) for k, v in metrics.items()
+        }
 
     metrics = _postprocess(metrics)
 
@@ -382,6 +381,8 @@ def params_show(
         https://git-scm.com/docs/revisions
 
     """
+    from dvc.repo.metrics.show import to_relpath
+
     if isinstance(stages, str):
         stages = [stages]
 
@@ -389,10 +390,11 @@ def params_show(
         params = _repo.params.show(
             revs=rev if rev is None else [rev],
             targets=targets,
-            deps=deps,
-            onerror=_onerror_raise,
+            deps_only=deps,
+            on_error="raise",
             stages=stages,
         )
+        params = {k: to_relpath(_repo.fs, _repo.root_dir, v) for k, v in params.items()}
 
     params = _postprocess(params)
 

dvc/build.py

@@ -2,7 +2,6 @@ from typing import Optional
 
 try:
     # file is created during dvc build
-    # pylint:disable=unused-import
     from . import _build  # type: ignore[attr-defined, import]
 
     PKG: Optional[str] = _build.PKG  # type: ignore[assignment]

dvc/cachemgr.py

@@ -24,10 +24,10 @@ def _get_odb(
     if not settings:
         return None
 
-    cls, config, fs_path = get_cloud_fs(repo, **settings)
+    cls, config, fs_path = get_cloud_fs(repo.config, **settings)
     fs = fs or cls(**config)
     if prefix:
-        fs_path = fs.path.join(fs_path, *prefix)
+        fs_path = fs.join(fs_path, *prefix)
     if hash_name:
         config["hash_name"] = hash_name
     return get_odb(fs, fs_path, state=repo.state, **config)
@@ -36,17 +36,15 @@ def _get_odb(
 class CacheManager:
     CACHE_DIR = "cache"
     FILES_DIR = "files"
+    FS_DIR = "fs"
 
     def __init__(self, repo):
         self._repo = repo
         self.config = config = repo.config["cache"]
         self._odb = {}
 
-        default = None
-        if repo and repo.local_dvc_dir:
-            default = os.path.join(repo.local_dvc_dir, self.CACHE_DIR)
-
         local = config.get("local")
+        default = self.default_local_cache_dir
 
         if local:
             settings = {"name": local}
@@ -76,6 +74,21 @@ class CacheManager:
         legacy_odb = _get_odb(repo, settings, hash_name="md5-dos2unix", **kwargs)
         self._odb["legacy"] = legacy_odb
 
+    @property
+    def fs_cache(self):
+        """Filesystem-based cache.
+
+        Currently used as a temporary location to download files that we don't
+        yet have a regular oid (e.g. md5) for.
+        """
+        from dvc_data.index import FileStorage
+
+        return FileStorage(
+            key=(),
+            fs=self.local.fs,
+            path=self.local.fs.join(self.default_local_cache_dir, self.FS_DIR),
+        )
+
     def _init_odb(self, schemes):
         for scheme in schemes:
             remote = self.config.get(scheme)
@@ -103,6 +116,13 @@ class CacheManager:
         """
         return self.legacy.path
 
+    @property
+    def default_local_cache_dir(self) -> Optional[str]:
+        repo = self._repo
+        if repo and repo.local_dvc_dir:
+            return os.path.join(repo.local_dvc_dir, self.CACHE_DIR)
+        return None
+
 
 def migrate_2_to_3(repo: "Repo", dry: bool = False):
     """Migrate legacy 2.x objects to 3.x cache.
@@ -117,7 +137,7 @@ def migrate_2_to_3(repo: "Repo", dry: bool = False):
     src = repo.cache.legacy
     dest = repo.cache.local
     if dry:
-        oids = list(src._list_oids())  # pylint: disable=protected-access
+        oids = list(src._list_oids())
         ui.write(
             f"{len(oids)} files will be re-hashed and migrated to the DVC 3.0 cache "
             "location."

dvc/cli/__init__.py

@@ -2,15 +2,17 @@
 
 import logging
 import sys
+from typing import Optional
+
+from dvc.log import logger
 
 # Workaround for CPython bug. See [1] and [2] for more info.
 # [1] https://github.com/aws/aws-cli/blob/1.16.277/awscli/clidriver.py#L55
 # [2] https://bugs.python.org/issue29288
-from typing import Optional
-
 "".encode("idna")
 
-logger = logging.getLogger("dvc")
+
+logger = logger.getChild(__name__)
 
 
 class DvcParserError(Exception):
@@ -165,18 +167,18 @@ def main(argv=None):  # noqa: C901, PLR0912, PLR0915
     # the copied parent's standard file descriptors. If we make any logging
     # calls in this state it will cause an exception due to writing to a closed
     # file descriptor.
-    if sys.stderr.closed:  # pylint: disable=using-constant-test
+    if not sys.stderr or sys.stderr.closed:
         logging.disable()
-    elif sys.stdout.closed:  # pylint: disable=using-constant-test
+    elif not sys.stdout or sys.stdout.closed:
         logging.disable(logging.INFO)
 
     args = None
 
     outer_log_level = logger.level
+    level = None
     try:
         args = parse_args(argv)
 
-        level = None
         if args.quiet:
             level = logging.CRITICAL
         elif args.verbose == 1:
@@ -192,14 +194,14 @@ def main(argv=None):  # noqa: C901, PLR0912, PLR0915
 
             from dvc import PKG, __version__
 
-            pyv = " ".join([python_implementation(), python_version()])
+            pyv = f"{python_implementation()} {python_version()}"
             pkg = f" ({PKG})" if PKG else ""
             logger.debug("v%s%s, %s on %s", __version__, pkg, pyv, platform())
             logger.debug("command: %s", " ".join(argv or sys.argv))
 
-        logger.trace(args)  # type: ignore[attr-defined]
+        logger.trace(args)
 
-        if not sys.stdout.closed and not args.quiet:
+        if sys.stdout and not sys.stdout.closed and not args.quiet:
             from dvc.ui import ui
 
             ui.enable()
@@ -230,16 +232,19 @@ def main(argv=None):  # noqa: C901, PLR0912, PLR0915
         logger.exception("")
     except DvcParserError:
         ret = 254
-    except Exception as exc:  # noqa, pylint: disable=broad-except
-        # pylint: disable=no-member
+    except Exception as exc:  # noqa: BLE001
         ret = _log_exceptions(exc) or 255
 
     try:
+        import os
+
         from dvc import analytics
 
         if analytics.is_enabled():
             analytics.collect_and_send_report(args, ret)
 
+        logger.trace("Process %s exiting with %s", os.getpid(), ret)
+
         return ret
     finally:
         logger.setLevel(outer_log_level)

dvc/cli/command.py

@@ -1,12 +1,13 @@
-import logging
 import os
 from abc import ABC, abstractmethod
 from typing import TYPE_CHECKING, Any
 
+from dvc.log import logger
+
 if TYPE_CHECKING:
     from dvc.config import Config
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdBase(ABC):
@@ -31,7 +32,7 @@ class CmdBase(ABC):
 
 
 class CmdBaseNoRepo(CmdBase):
-    def __init__(self, args):  # pylint: disable=super-init-not-called
+    def __init__(self, args):
         self.args = args
 
         os.chdir(args.cd)

dvc/cli/parser.py

@@ -1,12 +1,12 @@
 """Main parser for the dvc cli."""
 import argparse
-import logging
 import os
 from functools import lru_cache
 
 from dvc import __version__
 from dvc.commands import (
     add,
+    artifacts,
     cache,
     check_ignore,
     checkout,
@@ -19,6 +19,7 @@ from dvc.commands import (
     data_sync,
     destroy,
     diff,
+    du,
     experiments,
     freeze,
     gc,
@@ -26,12 +27,12 @@ from dvc.commands import (
     get_url,
     git_hook,
     imp,
+    imp_db,
     imp_url,
     init,
     install,
     ls,
     ls_url,
-    machine,
     metrics,
     move,
     params,
@@ -42,14 +43,16 @@ from dvc.commands import (
     repro,
     root,
     stage,
+    studio,
     unprotect,
     update,
     version,
 )
+from dvc.log import logger
 
 from . import DvcParserError
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 COMMANDS = [
     init,
@@ -65,6 +68,7 @@ COMMANDS = [
     data_sync,
     gc,
     imp,
+    imp_db,
     imp_url,
     config,
     checkout,
@@ -89,18 +93,20 @@ COMMANDS = [
     stage,
     experiments,
     check_ignore,
-    machine,
     data,
+    artifacts,
+    studio,
+    du,
 ]
 
 
 def _find_parser(parser, cmd_cls):
-    defaults = parser._defaults  # pylint: disable=protected-access
+    defaults = parser._defaults
     if not cmd_cls or cmd_cls == defaults.get("func"):
         parser.print_help()
         raise DvcParserError
 
-    actions = parser._actions  # pylint: disable=protected-access
+    actions = parser._actions
     for action in actions:
         if not isinstance(action.choices, dict):
             # NOTE: we are only interested in subparsers
@@ -112,7 +118,7 @@ def _find_parser(parser, cmd_cls):
 class DvcParser(argparse.ArgumentParser):
     """Custom parser class for dvc CLI."""
 
-    def error(self, message, cmd_cls=None):  # pylint: disable=arguments-differ
+    def error(self, message, cmd_cls=None):
         logger.error(message)
         _find_parser(self, cmd_cls)
 
@@ -137,7 +143,6 @@ def get_parent_parser():
     from dvc._debug import add_debugging_flags
 
     parent_parser = argparse.ArgumentParser(add_help=False)
-    add_debugging_flags(parent_parser)
     log_level_group = parent_parser.add_mutually_exclusive_group()
     log_level_group.add_argument(
         "-q", "--quiet", action="count", default=0, help="Be quiet."
@@ -145,6 +150,7 @@ def get_parent_parser():
     log_level_group.add_argument(
         "-v", "--verbose", action="count", default=0, help="Be verbose."
     )
+    add_debugging_flags(parent_parser)
 
     return parent_parser
 

dvc/cli/utils.py

@@ -1,3 +1,31 @@
+import argparse
+
+
+class DictAction(argparse.Action):
+    def __init__(self, *args, **kwargs):
+        kwargs.setdefault("metavar", "<name>=<value>")
+        super().__init__(*args, **kwargs)
+
+    def __call__(self, parser, args, values, option_string=None):  # noqa: ARG002
+        d = getattr(args, self.dest) or {}
+
+        if isinstance(values, list):
+            kvs = values
+        else:
+            kvs = [values]
+
+        for kv in kvs:
+            key, value = kv.split("=", 1)
+            if not value:
+                raise argparse.ArgumentError(
+                    self,
+                    f'Could not parse argument "{values}" as k1=v1 k2=v2 ... format',
+                )
+            d[key] = value
+
+        setattr(args, self.dest, d)
+
+
 def fix_subparsers(subparsers):
     """Workaround for bug in Python 3. See more info at:
     https://bugs.python.org/issue16308
@@ -16,9 +44,7 @@ def append_doc_link(help_message, path):
     if not path:
         return help_message
     doc_base = "https://man.dvc.org/"
-    return "{message}\nDocumentation: {link}".format(
-        message=help_message, link=format_link(doc_base + path)
-    )
+    return f"{help_message}\nDocumentation: {format_link(doc_base + path)}"
 
 
 def hide_subparsers_from_help(subparsers):

dvc/commands/add.py

@@ -1,11 +1,11 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdAdd(CmdBase):

dvc/commands/artifacts.py

@@ -0,0 +1,133 @@
+import argparse
+
+from dvc.cli import completion
+from dvc.cli.command import CmdBaseNoRepo
+from dvc.cli.utils import DictAction, append_doc_link, fix_subparsers
+from dvc.exceptions import DvcException
+from dvc.log import logger
+
+logger = logger.getChild(__name__)
+
+
+class CmdArtifactsGet(CmdBaseNoRepo):
+    def run(self):
+        from dvc.repo.artifacts import Artifacts
+        from dvc.scm import CloneError
+        from dvc.ui import ui
+
+        try:
+            count, out = Artifacts.get(
+                self.args.url,
+                name=self.args.name,
+                version=self.args.rev,
+                stage=self.args.stage,
+                force=self.args.force,
+                config=self.args.config,
+                remote=self.args.remote,
+                remote_config=self.args.remote_config,
+                out=self.args.out,
+            )
+            ui.write(f"Downloaded {count} file(s) to '{out}'")
+            return 0
+        except CloneError:
+            logger.exception("failed to get '%s'", self.args.name)
+            return 1
+        except DvcException:
+            logger.exception(
+                "failed to get '%s' from '%s'", self.args.name, self.args.url
+            )
+            return 1
+
+
+def add_parser(subparsers, parent_parser):
+    ARTIFACTS_HELP = "DVC model registry artifact commands."
+
+    artifacts_parser = subparsers.add_parser(
+        "artifacts",
+        parents=[parent_parser],
+        description=append_doc_link(ARTIFACTS_HELP, "artifacts"),
+        help=ARTIFACTS_HELP,
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+    )
+    artifacts_subparsers = artifacts_parser.add_subparsers(
+        dest="cmd",
+        help="Use `dvc artifacts CMD --help` to display command-specific help.",
+    )
+    fix_subparsers(artifacts_subparsers)
+
+    ARTIFACTS_GET_HELP = "Download an artifact from a DVC project."
+    get_parser = artifacts_subparsers.add_parser(
+        "get",
+        parents=[parent_parser],
+        description=append_doc_link(ARTIFACTS_GET_HELP, "artifacts/get"),
+        help=ARTIFACTS_HELP,
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+    )
+    get_parser.add_argument("url", help="Location of DVC repository to download from")
+    get_parser.add_argument(
+        "name", help="Name of artifact in the repository"
+    ).complete = completion.FILE
+    get_parser.add_argument(
+        "--rev",
+        nargs="?",
+        help="Artifact version",
+        metavar="<version>",
+    )
+    get_parser.add_argument(
+        "--stage",
+        nargs="?",
+        help="Artifact stage",
+        metavar="<stage>",
+    )
+    get_parser.add_argument(
+        "-o",
+        "--out",
+        nargs="?",
+        help="Destination path to download artifact to",
+        metavar="<path>",
+    ).complete = completion.DIR
+    get_parser.add_argument(
+        "-j",
+        "--jobs",
+        type=int,
+        help=(
+            "Number of jobs to run simultaneously. "
+            "The default value is 4 * cpu_count(). "
+        ),
+        metavar="<number>",
+    )
+    get_parser.add_argument(
+        "-f",
+        "--force",
+        action="store_true",
+        default=False,
+        help="Override local file or folder if exists.",
+    )
+    get_parser.add_argument(
+        "--config",
+        type=str,
+        help=(
+            "Path to a config file that will be merged with the config "
+            "in the target repository."
+        ),
+    )
+    get_parser.add_argument(
+        "--remote",
+        type=str,
+        help=(
+            "Remote name to set as a default in the target repository "
+            "(only applicable when downloading from DVC remote)."
+        ),
+    )
+    get_parser.add_argument(
+        "--remote-config",
+        type=str,
+        nargs="*",
+        action=DictAction,
+        help=(
+            "Remote config options to merge with a remote's config (default or one "
+            "specified by '--remote') in the target repository (only applicable "
+            "when downloading from DVC remote)."
+        ),
+    )
+    get_parser.set_defaults(func=CmdArtifactsGet)

dvc/commands/cache.py

@@ -40,8 +40,11 @@ class CmdCacheDir(CmdConfig):
 class CmdCacheMigrate(CmdBase):
     def run(self):
         from dvc.cachemgr import migrate_2_to_3
+        from dvc.repo.commit import commit_2_to_3
 
         migrate_2_to_3(self.repo, dry=self.args.dry)
+        if self.args.dvc_files:
+            commit_2_to_3(self.repo, dry=self.args.dry)
         return 0
 
 
@@ -102,6 +105,14 @@ def add_parser(subparsers, parent_parser):
         help=CACHE_MIGRATE_HELP,
         formatter_class=argparse.RawDescriptionHelpFormatter,
     )
+    cache_migrate_parser.add_argument(
+        "--dvc-files",
+        help=(
+            "Migrate entries in all existing DVC files in the repository "
+            "to the DVC 3.0 format."
+        ),
+        action="store_true",
+    )
     cache_migrate_parser.add_argument(
         "--dry",
         help=(

dvc/commands/checkout.py

@@ -37,6 +37,7 @@ class CmdCheckout(CmdBase):
                 force=self.args.force,
                 relink=self.args.relink,
                 recursive=self.args.recursive,
+                allow_missing=self.args.allow_missing,
             )
         except CheckoutError as _exc:
             exc = _exc
@@ -101,6 +102,12 @@ def add_parser(subparsers, parent_parser):
         default=False,
         help="Recreate links or copies from cache to workspace.",
     )
+    checkout_parser.add_argument(
+        "--allow-missing",
+        action="store_true",
+        default=False,
+        help="Ignore errors if some of the files or directories are missing.",
+    )
     checkout_parser.add_argument(
         "targets",
         nargs="*",

dvc/commands/commit.py

@@ -1,11 +1,11 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdCommit(CmdBase):
@@ -47,7 +47,10 @@ def add_parser(subparsers, parent_parser):
         "--force",
         action="store_true",
         default=False,
-        help="Commit even if hash value for dependencies/outputs changed.",
+        help=(
+            "Commit data even if hash values for dependencies or "
+            "outputs did not change."
+        ),
     )
     commit_parser.add_argument(
         "-d",

dvc/commands/completion.py

@@ -1,12 +1,15 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBaseNoRepo
 from dvc.cli.completion import PREAMBLE
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
+
+
+SUPPORTED_SHELLS = ["bash", "zsh"]
 
 
 class CmdCompletion(CmdBaseNoRepo):
@@ -15,7 +18,7 @@ class CmdCompletion(CmdBaseNoRepo):
 
         shell = self.args.shell
         parser = self.args.parser
-        script = shtab.complete(parser, shell=shell, preamble=PREAMBLE)  # nosec B604
+        script = shtab.complete(parser, shell=shell, preamble=PREAMBLE)
         ui.write(script, force=True)
         return 0
 
@@ -35,6 +38,6 @@ def add_parser(subparsers, parent_parser):
         "--shell",
         help="Shell syntax for completions.",
         default="bash",
-        choices=["bash", "zsh"],
+        choices=SUPPORTED_SHELLS,
     )
     completion_parser.set_defaults(func=CmdCompletion)

dvc/commands/config.py

@@ -1,14 +1,16 @@
 import argparse
-import logging
 import os
 
+from funcy import set_in
+
 from dvc.cli.command import CmdBaseNoRepo
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
-NAME_REGEX = r"^(?P<remote>remote\.)?(?P<section>[^\.]*)\.(?P<option>[^\.]*)$"
+NAME_REGEX = r"^(?P<top>(remote|db)\.)?(?P<section>[^\.]*)\.(?P<option>[^\.]*)$"
 
 
 def _name_type(value):
@@ -17,10 +19,12 @@ def _name_type(value):
     match = re.match(NAME_REGEX, value)
     if not match:
         raise argparse.ArgumentTypeError(
-            "name argument should look like remote.name.option or section.option"
+            "name argument should look like remote.name.option or "
+            "db.name.option or section.option"
         )
+    top = match.group("top")
     return (
-        bool(match.group("remote")),
+        top.strip(".") if top else None,
         match.group("section").lower(),
         match.group("option").lower(),
     )
@@ -49,12 +53,11 @@ class CmdConfig(CmdBaseNoRepo):
             logger.error("name argument is required")
             return 1
 
-        remote, section, opt = self.args.name
+        remote_or_db, section, opt = self.args.name
 
         if self.args.value is None and not self.args.unset:
-            return self._get(remote, section, opt)
-
-        return self._set(remote, section, opt)
+            return self._get(remote_or_db, section, opt)
+        return self._set(remote_or_db, section, opt)
 
     def _list(self):
         if any((self.args.name, self.args.value, self.args.unset)):
@@ -75,18 +78,18 @@ class CmdConfig(CmdBaseNoRepo):
 
         return 0
 
-    def _get(self, remote, section, opt):
+    def _get(self, remote_or_db, section, opt):
         from dvc.config import ConfigError
 
         levels = self._get_appropriate_levels(self.args.level)[::-1]
 
         for level in levels:
             conf = self.config.read(level)
-            if remote:
-                conf = conf["remote"]
+            if remote_or_db:
+                conf = conf[remote_or_db]
 
             try:
-                self._check(conf, remote, section, opt)
+                self._check(conf, remote_or_db, section, opt)
             except ConfigError:
                 if self.args.level:
                     raise
@@ -99,16 +102,15 @@ class CmdConfig(CmdBaseNoRepo):
 
         return 0
 
-    def _set(self, remote, section, opt):
+    def _set(self, remote_or_db, section, opt):
         with self.config.edit(self.args.level) as conf:
-            if remote:
-                conf = conf["remote"]
+            if remote_or_db:
+                conf = conf[remote_or_db]
             if self.args.unset:
-                self._check(conf, remote, section, opt)
+                self._check(conf, remote_or_db, section, opt)
                 del conf[section][opt]
             else:
-                self._check(conf, remote, section)
-                conf[section][opt] = self.args.value
+                conf.update(set_in(conf, [section, opt], self.args.value))
 
         if self.args.name == "cache.type":
             logger.warning(
@@ -119,10 +121,10 @@ class CmdConfig(CmdBaseNoRepo):
 
         return 0
 
-    def _check(self, conf, remote, section, opt=None):
+    def _check(self, conf, remote_or_db, section, opt=None):
         from dvc.config import ConfigError
 
-        name = "remote" if remote else "section"
+        name = remote_or_db or "section"
         if section not in conf:
             raise ConfigError(f"{name} '{section}' doesn't exist")
 

dvc/commands/daemon.py

@@ -1,6 +1,9 @@
 from dvc.cli import completion
 from dvc.cli.command import CmdBaseNoRepo
 from dvc.cli.utils import fix_subparsers
+from dvc.log import logger
+
+logger = logger.getChild(__name__)
 
 
 class CmdDaemonBase(CmdBaseNoRepo):
@@ -21,6 +24,8 @@ class CmdDaemonUpdater(CmdDaemonBase):
         config = Config(dvc_dir, validate=False)
         hardlink_lock = config.get("core", {}).get("hardlink_lock", False)
         updater = Updater(tmp_dir, hardlink_lock=hardlink_lock)
+
+        logger.info("Starting updater to fetch the latest version")
         updater.fetch(detach=False)
 
         return 0
@@ -30,6 +35,7 @@ class CmdDaemonAnalytics(CmdDaemonBase):
     def run(self):
         from dvc import analytics
 
+        logger.info("Sending analytics")
         analytics.send(self.args.target)
 
         return 0

dvc/commands/dag.py

@@ -86,7 +86,7 @@ def _collect_targets(repo, target, outs):
             targets.extend([str(out) for out in stage.outs])
             continue
 
-        for out in outs_trie.itervalues(prefix=repo.fs.path.parts(path)):  # noqa: B301
+        for out in outs_trie.itervalues(prefix=repo.fs.parts(path)):
             targets.extend(str(out))
 
     return targets

dvc/commands/data.py

@@ -1,11 +1,11 @@
 import argparse
-import logging
 from typing import TYPE_CHECKING
 
 from funcy import chunks, compact, log_durations
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link, fix_subparsers
+from dvc.log import logger
 from dvc.ui import ui
 from dvc.utils import colorize
 
@@ -13,7 +13,7 @@ if TYPE_CHECKING:
     from dvc.repo.data import Status as DataStatus
 
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdDataStatus(CmdBase):
@@ -90,9 +90,7 @@ class CmdDataStatus(CmdBase):
                     ui.write(f"  ({hint})")
 
             if isinstance(stage_status, dict):
-                items = [
-                    ": ".join([state, file]) for file, state in stage_status.items()
-                ]
+                items = [f"{state}: {file}" for file, state in stage_status.items()]
             else:
                 items = stage_status
 
@@ -108,9 +106,7 @@ class CmdDataStatus(CmdBase):
         return 0
 
     def run(self) -> int:
-        with log_durations(
-            logger.trace, "in data_status"  # type: ignore[attr-defined]
-        ):
+        with log_durations(logger.trace, "in data_status"):
             status = self.repo.data_status(
                 granular=self.args.granular,
                 untracked_files=self.args.untracked_files,

dvc/commands/data_sync.py

@@ -1,11 +1,11 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdDataBase(CmdBase):
@@ -14,6 +14,10 @@ class CmdDataBase(CmdBase):
         from dvc.utils.humanize import get_summary
 
         default_msg = "Everything is up to date."
+
+        if not self.args.remote and not self.repo.config["core"].get("remote"):
+            ui.warn("No remote provided and no default remote set.")
+
         ui.write(get_summary(stats.items()) or default_msg)
 
 
@@ -91,6 +95,8 @@ class CmdDataFetch(CmdDataBase):
                 with_deps=self.args.with_deps,
                 recursive=self.args.recursive,
                 run_cache=self.args.run_cache,
+                max_size=self.args.max_size,
+                types=self.args.types,
             )
             self.log_summary({"fetched": processed_files_count})
         except DvcException:
@@ -322,6 +328,22 @@ def add_parser(subparsers, _parent_parser):
         default=False,
         help="Fetch run history for all stages.",
     )
+    fetch_parser.add_argument(
+        "--max-size",
+        type=int,
+        help="Fetch data files/directories that are each below specified size (bytes).",
+    )
+    fetch_parser.add_argument(
+        "--type",
+        dest="types",
+        action="append",
+        default=[],
+        help=(
+            "Only fetch data files/directories that are of a particular "
+            "type (metrics, plots)."
+        ),
+        choices=["metrics", "plots"],
+    )
     fetch_parser.set_defaults(func=CmdDataFetch)
 
     # Status

dvc/commands/destroy.py

@@ -1,10 +1,10 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdDestroy(CmdBase):
@@ -21,7 +21,7 @@ class CmdDestroy(CmdBase):
             )
 
             if not self.args.force and not ui.confirm(statement):
-                raise DvcException(
+                raise DvcException(  # noqa: TRY301
                     "cannot destroy without a confirmation from the user."
                     " Use `-f` to force."
                 )

dvc/commands/diff.py

@@ -1,13 +1,13 @@
 import argparse
-import logging
 import os
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 def _digest(checksum):

dvc/commands/du.py

@@ -0,0 +1,80 @@
+import argparse
+import logging
+
+from dvc.cli import completion
+from dvc.cli.command import CmdBaseNoRepo
+from dvc.cli.utils import DictAction, append_doc_link
+from dvc.ui import ui
+
+logger = logging.getLogger(__name__)
+
+
+class CmdDU(CmdBaseNoRepo):
+    def run(self):
+        from dvc.repo import Repo
+        from dvc.utils.humanize import naturalsize
+
+        entries = Repo.du(
+            self.args.url,
+            self.args.path,
+            rev=self.args.rev,
+            summarize=self.args.summarize,
+            config=self.args.config,
+            remote=self.args.remote,
+            remote_config=self.args.remote_config,
+        )
+        ui.table([(naturalsize(size), path) for path, size in entries])
+        return 0
+
+
+def add_parser(subparsers, parent_parser):
+    DU_HELP = "Show disk usage."
+    du_parser = subparsers.add_parser(
+        "du",
+        parents=[parent_parser],
+        description=append_doc_link(DU_HELP, "du"),
+        help=DU_HELP,
+        formatter_class=argparse.RawTextHelpFormatter,
+    )
+    du_parser.add_argument("url", help="Location of DVC repository")
+    du_parser.add_argument(
+        "--rev",
+        nargs="?",
+        help="Git revision (e.g. SHA, branch, tag)",
+        metavar="<commit>",
+    )
+    du_parser.add_argument(
+        "-s",
+        "--summarize",
+        action="store_true",
+        help="Show total disk usage.",
+    )
+    du_parser.add_argument(
+        "--config",
+        type=str,
+        help=(
+            "Path to a config file that will be merged with the config "
+            "in the target repository."
+        ),
+    )
+    du_parser.add_argument(
+        "--remote",
+        type=str,
+        help="Remote name to set as a default in the target repository.",
+    )
+    du_parser.add_argument(
+        "--remote-config",
+        type=str,
+        nargs="*",
+        action=DictAction,
+        help=(
+            "Remote config options to merge with a remote's config (default or one "
+            "specified by '--remote') in the target repository."
+        ),
+    )
+    du_parser.add_argument(
+        "path",
+        nargs="?",
+        help="Path to directory within the repository",
+    ).complete = completion.DIR
+    du_parser.set_defaults(func=CmdDU)

dvc/commands/experiments/__init__.py

@@ -12,6 +12,7 @@ from dvc.commands.experiments import (
     push,
     queue_worker,
     remove,
+    rename,
     run,
     save,
     show,
@@ -28,6 +29,7 @@ SUB_COMMANDS = [
     push,
     queue_worker,
     remove,
+    rename,
     run,
     save,
     show,

dvc/commands/experiments/apply.py

@@ -1,12 +1,12 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdExperimentsApply(CmdBase):

dvc/commands/experiments/branch.py

@@ -1,10 +1,10 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdExperimentsBranch(CmdBase):

dvc/commands/experiments/clean.py

@@ -1,10 +1,10 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdExperimentsClean(CmdBase):

dvc/commands/experiments/diff.py

@@ -1,14 +1,14 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
 from dvc.commands.metrics import DEFAULT_PRECISION
 from dvc.exceptions import DvcException
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdExperimentsDiff(CmdBase):

dvc/commands/experiments/exec_run.py

@@ -1,8 +1,7 @@
-import logging
-
 from dvc.cli.command import CmdBaseNoRepo
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdExecutorRun(CmdBaseNoRepo):
@@ -49,7 +48,7 @@ def add_parser(experiments_subparsers, parent_parser):
         ),
     )
     exec_run_parser.add_argument(
-        "-M",
+        "-m",
         "--message",
         type=str,
         default=None,

dvc/commands/experiments/ls.py

@@ -1,12 +1,12 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
 from dvc.exceptions import InvalidArgumentError
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdExperimentsList(CmdBase):
@@ -23,15 +23,22 @@ class CmdExperimentsList(CmdBase):
             git_remote=git_remote,
         )
 
+        from dvc.repo.experiments.utils import describe
+        from dvc.scm import Git
+
+        if name_only or sha_only:
+            names = {}
+        else:
+            assert isinstance(self.repo.scm, Git)
+            names = describe(
+                self.repo.scm,
+                (baseline for baseline in exps),
+                logger=logger,
+            )
+
         for baseline in exps:
             if not (name_only or sha_only):
-                tag_base = "refs/tags/"
-                branch_base = "refs/heads/"
-                name = baseline[:7]
-                if baseline.startswith(tag_base):
-                    name = baseline[len(tag_base) :]
-                elif baseline.startswith(branch_base):
-                    name = baseline[len(branch_base) :]
+                name = names.get(baseline) or baseline[:7]
                 ui.write(f"{name}:")
             for exp_name, rev in exps[baseline]:
                 if name_only:
@@ -52,6 +59,7 @@ def add_parser(experiments_subparsers, parent_parser):
     EXPERIMENTS_LIST_HELP = "List local and remote experiments."
     experiments_list_parser = experiments_subparsers.add_parser(
         "list",
+        aliases=["ls"],
         parents=[parent_parser],
         description=append_doc_link(EXPERIMENTS_LIST_HELP, "exp/list"),
         help=EXPERIMENTS_LIST_HELP,

dvc/commands/experiments/pull.py

@@ -1,11 +1,11 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdExperimentsPull(CmdBase):

dvc/commands/experiments/push.py

@@ -1,13 +1,13 @@
 import argparse
-import logging
 from typing import Any, Dict
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdExperimentsPush(CmdBase):

dvc/commands/experiments/queue_worker.py

@@ -1,8 +1,7 @@
-import logging
-
 from dvc.cli.command import CmdBase
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdQueueWorker(CmdBase):

dvc/commands/experiments/remove.py

@@ -1,12 +1,12 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
 from dvc.exceptions import InvalidArgumentError
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdExperimentsRemove(CmdBase):
@@ -50,6 +50,7 @@ def add_parser(experiments_subparsers, parent_parser):
     EXPERIMENTS_REMOVE_HELP = "Remove experiments."
     experiments_remove_parser = experiments_subparsers.add_parser(
         "remove",
+        aliases=["rm"],
         parents=[parent_parser],
         description=append_doc_link(EXPERIMENTS_REMOVE_HELP, "exp/remove"),
         help=EXPERIMENTS_REMOVE_HELP,

dvc/commands/experiments/rename.py

@@ -0,0 +1,68 @@
+import argparse
+
+from dvc.cli.command import CmdBase
+from dvc.cli.utils import append_doc_link
+from dvc.exceptions import InvalidArgumentError
+from dvc.log import logger
+from dvc.ui import ui
+
+logger = logger.getChild(__name__)
+
+
+class CmdExperimentsRename(CmdBase):
+    def run(self):
+        from dvc.utils import humanize
+
+        if not (self.args.experiment and self.args.name):
+            raise InvalidArgumentError(
+                "An experiment to rename and a new experiment name are required."
+            )
+        renamed = self.repo.experiments.rename(
+            exp_name=self.args.experiment,
+            new_name=self.args.name,
+            git_remote=self.args.git_remote,
+            force=self.args.force,
+        )
+        if renamed:
+            ui.write(f"Renamed experiments: {humanize.join(map(repr, renamed))}")
+        else:
+            ui.write("No experiments to rename.")
+
+        return 0
+
+
+def add_parser(experiments_subparsers, parent_parser):
+    EXPERIMENTS_RENAME_HELP = "Rename experiments."
+    experiments_rename_parser = experiments_subparsers.add_parser(
+        "rename",
+        parents=[parent_parser],
+        description=append_doc_link(EXPERIMENTS_RENAME_HELP, "exp/rename"),
+        help=EXPERIMENTS_RENAME_HELP,
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+    )
+    rename_group = experiments_rename_parser.add_mutually_exclusive_group()
+    rename_group.add_argument(
+        "-g",
+        "--git-remote",
+        metavar="<git_remote>",
+        help="Name or URL of the Git remote to rename the experiment from",
+    )
+    experiments_rename_parser.add_argument(
+        "experiment",
+        help="Experiment to rename.",
+        nargs="?",
+        metavar="<experiment>",
+    )
+    experiments_rename_parser.add_argument(
+        "name",
+        help="New name for the experiment.",
+        metavar="<name>",
+    )
+    experiments_rename_parser.add_argument(
+        "-f",
+        "--force",
+        action="store_true",
+        default=False,
+        help="Replace experiment if it already exists.",
+    )
+    experiments_rename_parser.set_defaults(func=CmdExperimentsRename)

dvc/commands/experiments/run.py

@@ -1,11 +1,11 @@
 import argparse
-import logging
 
 from dvc.cli.utils import append_doc_link
 from dvc.commands.repro import CmdRepro
 from dvc.commands.repro import add_arguments as add_repro_arguments
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdExperimentsRun(CmdRepro):
@@ -17,7 +17,6 @@ class CmdExperimentsRun(CmdRepro):
             jobs=self.args.jobs,
             params=self.args.set_param,
             tmp_dir=self.args.tmp_dir,
-            machine=self.args.machine,
             copy_paths=self.args.copy_paths,
             message=self.args.message,
             **self._common_kwargs,
@@ -27,7 +26,7 @@ class CmdExperimentsRun(CmdRepro):
 
 
 def add_parser(experiments_subparsers, parent_parser):
-    EXPERIMENTS_RUN_HELP = "Run or resume an experiment."
+    EXPERIMENTS_RUN_HELP = "Run an experiment."
     experiments_run_parser = experiments_subparsers.add_parser(
         "run",
         parents=[parent_parser],
@@ -90,15 +89,6 @@ def _add_run_common(parser):
             "your workspace."
         ),
     )
-    parser.add_argument(
-        "--machine",
-        default=None,
-        help=argparse.SUPPRESS,
-        # help=(
-        #     "Run this experiment on the specified 'dvc machine' instance."
-        # )
-        # metavar="<name>",
-    )
     parser.add_argument(
         "-C",
         "--copy-paths",
@@ -116,3 +106,8 @@ def _add_run_common(parser):
         default=None,
         help="Custom commit message to use when committing the experiment.",
     )
+    parser.add_argument(
+        "-M",  # obsolete
+        dest="message",
+        help=argparse.SUPPRESS,
+    )

dvc/commands/experiments/save.py

@@ -1,12 +1,12 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
 from dvc.exceptions import DvcException
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdExperimentsSave(CmdBase):
@@ -27,10 +27,6 @@ class CmdExperimentsSave(CmdBase):
         else:
             name = self.repo.experiments.get_exact_name([ref])[ref]
             ui.write(f"Experiment has been saved as: {name}")
-            ui.write(
-                "\nTo promote an experiment to a Git branch run:\n\n"
-                "\tdvc exp branch <exp> <branch>\n"
-            )
 
         return 0
 
@@ -76,10 +72,15 @@ def add_parser(experiments_subparsers, parent_parser):
         metavar="<path>",
     )
     save_parser.add_argument(
-        "-M",
+        "-m",
         "--message",
         type=str,
         default=None,
         help="Custom commit message to use when committing the experiment.",
     )
+    save_parser.add_argument(
+        "-M",  # obsolete
+        dest="message",
+        help=argparse.SUPPRESS,
+    )
     save_parser.set_defaults(func=CmdExperimentsSave)

dvc/commands/experiments/show.py

@@ -1,5 +1,4 @@
 import argparse
-import logging
 import re
 from datetime import date, datetime
 from typing import TYPE_CHECKING, Dict, Iterable
@@ -10,6 +9,7 @@ from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
 from dvc.commands.metrics import DEFAULT_PRECISION
 from dvc.exceptions import DvcException
+from dvc.log import logger
 from dvc.ui import ui
 from dvc.utils.serialize import encode_exception
 
@@ -21,7 +21,7 @@ FILL_VALUE = "-"
 FILL_VALUE_ERRORED = "!"
 
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 experiment_types = {
@@ -54,7 +54,7 @@ def baseline_styler(typ):
     return {"style": "bold"} if typ == "baseline" else {}
 
 
-def show_experiments(  # noqa: C901
+def show_experiments(
     td: "TabularData",
     headers: Dict[str, Iterable[str]],
     keep=None,

dvc/commands/freeze.py

@@ -1,12 +1,12 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
 from dvc.exceptions import DvcException
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdFreezeBase(CmdBase):

dvc/commands/gc.py

@@ -1,12 +1,12 @@
 import argparse
-import logging
 import os
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdGC(CmdBase):
@@ -26,6 +26,10 @@ class CmdGC(CmdBase):
             not_in_remote=self.args.not_in_remote,
         )
 
+        # Don't prompt during dry run
+        if self.args.dry:
+            self.args.force = True
+
         if self.args.rev:
             self.args.num = self.args.num or 1
 
@@ -81,6 +85,7 @@ class CmdGC(CmdBase):
             rev=self.args.rev,
             num=self.args.num,
             not_in_remote=self.args.not_in_remote,
+            dry=self.args.dry,
         )
         return 0
 
@@ -213,4 +218,10 @@ def add_parser(subparsers, parent_parser):
         ),
         metavar="<paths>",
     )
+    gc_parser.add_argument(
+        "--dry",
+        action="store_true",
+        default=False,
+        help=("Only print what would get removed without actually removing."),
+    )
     gc_parser.set_defaults(func=CmdGC)

dvc/commands/get.py

@@ -1,12 +1,12 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBaseNoRepo
-from dvc.cli.utils import append_doc_link
+from dvc.cli.utils import DictAction, append_doc_link
 from dvc.exceptions import DvcException
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdGet(CmdBaseNoRepo):
@@ -37,6 +37,9 @@ class CmdGet(CmdBaseNoRepo):
                 rev=self.args.rev,
                 jobs=self.args.jobs,
                 force=self.args.force,
+                config=self.args.config,
+                remote=self.args.remote,
+                remote_config=self.args.remote_config,
             )
             return 0
         except CloneError:
@@ -102,4 +105,27 @@ def add_parser(subparsers, parent_parser):
         default=False,
         help="Override local file or folder if exists.",
     )
+    get_parser.add_argument(
+        "--config",
+        type=str,
+        help=(
+            "Path to a config file that will be merged with the config "
+            "in the target repository."
+        ),
+    )
+    get_parser.add_argument(
+        "--remote",
+        type=str,
+        help="Remote name to set as a default in the target repository.",
+    )
+    get_parser.add_argument(
+        "--remote-config",
+        type=str,
+        nargs="*",
+        action=DictAction,
+        help=(
+            "Remote config options to merge with a remote's config (default or one "
+            "specified by '--remote') in the target repository."
+        ),
+    )
     get_parser.set_defaults(func=CmdGet)

dvc/commands/get_url.py

@@ -1,16 +1,17 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBaseNoRepo
-from dvc.cli.utils import append_doc_link
+from dvc.cli.utils import DictAction, append_doc_link
 from dvc.exceptions import DvcException
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdGetUrl(CmdBaseNoRepo):
     def run(self):
+        from dvc.config import Config
         from dvc.repo import Repo
 
         try:
@@ -19,6 +20,8 @@ class CmdGetUrl(CmdBaseNoRepo):
                 out=self.args.out,
                 jobs=self.args.jobs,
                 force=self.args.force,
+                fs_config=self.args.fs_config,
+                config=Config.from_cwd(),
             )
             return 0
         except DvcException:
@@ -58,4 +61,11 @@ def add_parser(subparsers, parent_parser):
         default=False,
         help="Override local file or folder if exists.",
     )
+    get_parser.add_argument(
+        "--fs-config",
+        type=str,
+        nargs="*",
+        action=DictAction,
+        help="Config options for the target url.",
+    )
     get_parser.set_defaults(func=CmdGetUrl)

dvc/commands/git_hook.py

@@ -1,11 +1,11 @@
-import logging
 import os
 
 from dvc.cli.command import CmdBaseNoRepo
 from dvc.cli.utils import fix_subparsers
 from dvc.exceptions import NotDvcRepoError
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdHookBase(CmdBaseNoRepo):

dvc/commands/imp.py

@@ -1,12 +1,12 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
-from dvc.cli.utils import append_doc_link
+from dvc.cli.utils import DictAction, append_doc_link
 from dvc.exceptions import DvcException
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdImport(CmdBase):
@@ -22,6 +22,10 @@ class CmdImport(CmdBase):
                 no_exec=self.args.no_exec,
                 no_download=self.args.no_download,
                 jobs=self.args.jobs,
+                config=self.args.config,
+                remote=self.args.remote,
+                remote_config=self.args.remote_config,
+                force=self.args.force,
             )
         except CloneError:
             logger.exception("failed to import '%s'", self.args.path)
@@ -62,6 +66,13 @@ def add_parser(subparsers, parent_parser):
         help="Destination path to download files to",
         metavar="<path>",
     ).complete = completion.DIR
+    import_parser.add_argument(
+        "-f",
+        "--force",
+        action="store_true",
+        default=False,
+        help="Override destination file or folder if exists.",
+    )
     import_parser.add_argument(
         "--rev",
         nargs="?",
@@ -94,4 +105,27 @@ def add_parser(subparsers, parent_parser):
         ),
         metavar="<number>",
     )
+    import_parser.add_argument(
+        "--config",
+        type=str,
+        help=(
+            "Path to a config file that will be merged with the config "
+            "in the target repository."
+        ),
+    )
+    import_parser.add_argument(
+        "--remote",
+        type=str,
+        help="Remote name to set as a default in the target repository.",
+    )
+    import_parser.add_argument(
+        "--remote-config",
+        type=str,
+        nargs="*",
+        action=DictAction,
+        help=(
+            "Remote config options to merge with a remote's config (default or one "
+            "specified by '--remote') in the target repository."
+        ),
+    )
     import_parser.set_defaults(func=CmdImport)

dvc/commands/imp_db.py

@@ -0,0 +1,167 @@
+import argparse
+
+from funcy import compact, merge
+
+from dvc.cli import completion
+from dvc.cli.command import CmdBase
+from dvc.cli.utils import append_doc_link
+from dvc.log import logger
+from dvc.ui import ui
+
+logger = logger.getChild(__name__)
+
+
+class CmdTestDb(CmdBase):
+    def run(self):
+        from dvc.database import get_client
+        from dvc.database.dbt_utils import DBT_PROJECT_FILE, is_dbt_project
+        from dvc.dependency.db import _get_dbt_config
+        from dvc.exceptions import DvcException
+
+        connection = self.args.connection
+
+        db_config = self.repo.config.get("db", {})
+        config = db_config.get(connection, {})
+        if connection and not config:
+            raise DvcException(f"connection {connection} not found in config")
+
+        cli_config = compact(
+            {
+                "url": self.args.url,
+                "username": self.args.username,
+                "password": self.args.password,
+            }
+        )
+        conn_config = merge(config, cli_config)
+
+        cli_dbt_config = {"profile": self.args.profile, "target": self.args.target}
+        dbt_config = merge(_get_dbt_config(self.repo.config), cli_dbt_config)
+
+        project_dir = self.repo.root_dir
+        if not (conn_config or dbt_config):
+            if is_dbt_project(project_dir):
+                ui.write("Using", DBT_PROJECT_FILE, "for testing", styled=True)
+            else:
+                raise DvcException(
+                    f"no config set and {DBT_PROJECT_FILE} is missing; "
+                    "provide arguments or set a configuration"
+                )
+
+        adapter = get_client(conn_config, project_dir=project_dir, **dbt_config)
+        with adapter as db:
+            ui.write(f"Testing with {db}", styled=True)
+
+            creds = getattr(db, "creds", {})
+            for k, v in creds.items():
+                ui.write("\t", f"{k}:", v, styled=True)
+
+            if creds:
+                ui.write()
+
+            db.test_connection()
+
+        ui.write("Connection successful", styled=True)
+
+
+class CmdImportDb(CmdBase):
+    def run(self):
+        if not (self.args.sql or self.args.model):
+            raise argparse.ArgumentTypeError("Either of --sql or --model is required.")
+
+        self.repo.imp_db(
+            url=self.args.url,
+            rev=self.args.rev,
+            project_dir=self.args.project_dir,
+            sql=self.args.sql,
+            model=self.args.model,
+            profile=self.args.profile,
+            target=self.args.target,
+            output_format=self.args.output_format,
+            out=self.args.out,
+            force=self.args.force,
+            connection=self.args.connection,
+        )
+        return 0
+
+
+def add_parser(subparsers, parent_parser):
+    IMPORT_HELP = (
+        "Download file or directory tracked by DVC or by Git "
+        "into the workspace, and track it."
+    )
+
+    import_parser = subparsers.add_parser(
+        "import-db",
+        parents=[parent_parser],
+        description=append_doc_link(IMPORT_HELP, "import"),
+        add_help=False,
+    )
+    import_parser.add_argument(
+        "--url", help="Location of DVC or Git repository to download from"
+    )
+    import_parser.add_argument(
+        "--rev",
+        nargs="?",
+        help="Git revision (e.g. SHA, branch, tag)",
+        metavar="<commit>",
+    )
+    import_parser.add_argument(
+        "--project-dir", nargs="?", help="Subdirectory to the dbt project location"
+    )
+
+    group = import_parser.add_mutually_exclusive_group()
+    group.add_argument(
+        "--sql",
+        help="SQL query",
+    )
+    group.add_argument(
+        "--model",
+        help="Model name to download",
+    )
+    import_parser.add_argument("--profile", help="Profile to use")
+    import_parser.add_argument("--target", help="Target to use")
+    import_parser.add_argument(
+        "--output-format",
+        default="csv",
+        const="csv",
+        nargs="?",
+        choices=["csv", "json"],
+        help="Export format",
+    )
+    import_parser.add_argument(
+        "-o",
+        "--out",
+        nargs="?",
+        help="Destination path to download files to",
+        metavar="<path>",
+    ).complete = completion.FILE
+    import_parser.add_argument(
+        "-f",
+        "--force",
+        action="store_true",
+        default=False,
+        help="Override destination file or folder if exists.",
+    )
+    import_parser.add_argument(
+        "--conn",
+        dest="connection",
+        nargs="?",
+        help="Database connection to use, needs to be set in config",
+    )
+
+    import_parser.set_defaults(func=CmdImportDb)
+
+    TEST_DB_HELP = "Test the database connection"
+    test_db_parser = subparsers.add_parser(
+        "test-db",
+        parents=[parent_parser],
+        description=append_doc_link(TEST_DB_HELP, "test-db"),
+        add_help=False,
+    )
+    test_db_parser.add_argument("--conn", dest="connection")
+    test_db_parser.add_argument("--url")
+    test_db_parser.add_argument("--password")
+    test_db_parser.add_argument("--username")
+    test_db_parser.add_argument("--profile")
+    test_db_parser.add_argument("--target")
+    test_db_parser.set_defaults(func=CmdTestDb)

dvc/commands/imp_url.py

@@ -1,12 +1,12 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
-from dvc.cli.utils import append_doc_link
+from dvc.cli.utils import DictAction, append_doc_link
 from dvc.exceptions import DvcException
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdImportUrl(CmdBase):
@@ -22,6 +22,7 @@ class CmdImportUrl(CmdBase):
                 jobs=self.args.jobs,
                 force=self.args.force,
                 version_aware=self.args.version_aware,
+                fs_config=self.args.fs_config,
             )
         except DvcException:
             logger.exception(
@@ -114,4 +115,11 @@ def add_parser(subparsers, parent_parser):
         default=False,
         help="Import using cloud versioning. Implied if the URL contains a version ID.",
     )
+    import_parser.add_argument(
+        "--fs-config",
+        type=str,
+        nargs="*",
+        action=DictAction,
+        help="Config options for the target url.",
+    )
     import_parser.set_defaults(func=CmdImportUrl)

dvc/commands/init.py

@@ -1,15 +1,15 @@
 import argparse
-import logging
 
 import colorama
 
 from dvc import analytics
 from dvc.cli.command import CmdBaseNoRepo
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 from dvc.utils import boxify
 from dvc.utils import format_link as fmt_link
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 def _welcome_message():

dvc/commands/install.py

@@ -1,11 +1,11 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
 from dvc.exceptions import DvcException
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdInstall(CmdBase):

dvc/commands/ls/__init__.py

@@ -1,17 +1,28 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBaseNoRepo
-from dvc.cli.utils import append_doc_link
+from dvc.cli.utils import DictAction, append_doc_link
 from dvc.commands.ls.ls_colors import LsColors
 from dvc.exceptions import DvcException
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
-def _prettify(entries, with_color=False):
+def _format_entry(entry, fmt):
+    from dvc.utils.humanize import naturalsize
+
+    size = entry.get("size")
+    if size is None:
+        size = ""
+    else:
+        size = naturalsize(size)
+    return size, fmt(entry)
+
+
+def show_entries(entries, with_color=False, with_size=False):
     if with_color:
         ls_colors = LsColors()
         fmt = ls_colors.format
@@ -20,7 +31,12 @@ def _prettify(entries, with_color=False):
         def fmt(entry):
             return entry["path"]
 
-    return [fmt(entry) for entry in entries]
+    if with_size:
+        ui.table([_format_entry(entry, fmt) for entry in entries])
+        return
+
+    # NOTE: this is faster than ui.table for very large number of entries
+    ui.write("\n".join(fmt(entry) for entry in entries))
 
 
 class CmdList(CmdBaseNoRepo):
@@ -34,12 +50,14 @@ class CmdList(CmdBaseNoRepo):
                 rev=self.args.rev,
                 recursive=self.args.recursive,
                 dvc_only=self.args.dvc_only,
+                config=self.args.config,
+                remote=self.args.remote,
+                remote_config=self.args.remote_config,
             )
             if self.args.json:
                 ui.write_json(entries)
             elif entries:
-                entries = _prettify(entries, with_color=True)
-                ui.write("\n".join(entries))
+                show_entries(entries, with_color=True, with_size=self.args.size)
             return 0
         except DvcException:
             logger.exception("failed to list '%s'", self.args.url)
@@ -80,6 +98,34 @@ def add_parser(subparsers, parent_parser):
         help="Git revision (e.g. SHA, branch, tag)",
         metavar="<commit>",
     )
+    list_parser.add_argument(
+        "--config",
+        type=str,
+        help=(
+            "Path to a config file that will be merged with the config "
+            "in the target repository."
+        ),
+    )
+    list_parser.add_argument(
+        "--remote",
+        type=str,
+        help="Remote name to set as a default in the target repository.",
+    )
+    list_parser.add_argument(
+        "--remote-config",
+        type=str,
+        nargs="*",
+        action=DictAction,
+        help=(
+            "Remote config options to merge with a remote's config (default or one "
+            "specified by '--remote') in the target repository."
+        ),
+    )
+    list_parser.add_argument(
+        "--size",
+        action="store_true",
+        help="Show sizes.",
+    )
     list_parser.add_argument(
         "path",
         nargs="?",

dvc/commands/ls_url.py

@@ -1,23 +1,27 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBaseNoRepo
-from dvc.cli.utils import append_doc_link
-from dvc.ui import ui
+from dvc.cli.utils import DictAction, append_doc_link
+from dvc.log import logger
 
-from .ls import _prettify
+from .ls import show_entries
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdListUrl(CmdBaseNoRepo):
     def run(self):
+        from dvc.config import Config
         from dvc.repo import Repo
 
-        entries = Repo.ls_url(self.args.url, recursive=self.args.recursive)
+        entries = Repo.ls_url(
+            self.args.url,
+            recursive=self.args.recursive,
+            fs_config=self.args.fs_config,
+            config=Config.from_cwd(),
+        )
         if entries:
-            entries = _prettify(entries, with_color=True)
-            ui.write("\n".join(entries))
+            show_entries(entries, with_color=True, with_size=self.args.size)
         return 0
 
 
@@ -40,4 +44,16 @@ def add_parser(subparsers, parent_parser):
         action="store_true",
         help="Recursively list files.",
     )
+    lsurl_parser.add_argument(
+        "--size",
+        action="store_true",
+        help="Show sizes.",
+    )
+    lsurl_parser.add_argument(
+        "--fs-config",
+        type=str,
+        nargs="*",
+        action=DictAction,
+        help="Config options for the target url.",
+    )
     lsurl_parser.set_defaults(func=CmdListUrl)

dvc/commands/machine.py

@@ -1,490 +0,0 @@
-import argparse
-from typing import Dict, List
-
-from dvc.cli.command import CmdBase
-from dvc.cli.utils import append_doc_link, fix_subparsers
-from dvc.commands.config import CmdConfig
-from dvc.compare import TabularData
-from dvc.config import ConfigError
-from dvc.exceptions import DvcException
-from dvc.ui import ui
-from dvc.utils import format_link
-
-
-class MachineDisabledError(ConfigError):
-    def __init__(self):
-        super().__init__("Machine feature is disabled")
-
-
-class CmdMachineConfig(CmdConfig):
-    def __init__(self, args):
-        super().__init__(args)
-        if not self.config["feature"].get("machine", False):
-            raise MachineDisabledError
-
-        if getattr(self.args, "name", None):
-            self.args.name = self.args.name.lower()
-
-    def _check_exists(self, conf):
-        if self.args.name not in conf["machine"]:
-            raise ConfigError(f"machine '{self.args.name}' doesn't exist.")
-
-
-class CmdMachineAdd(CmdMachineConfig):
-    def run(self):
-        from dvc.machine import validate_name
-
-        validate_name(self.args.name)
-
-        if self.args.default:
-            ui.write(f"Setting '{self.args.name}' as a default machine.")
-
-        with self.config.edit(self.args.level) as conf:
-            if self.args.name in conf["machine"] and not self.args.force:
-                raise ConfigError(
-                    "machine '{}' already exists. Use `-f|--force` to "
-                    "overwrite it.".format(self.args.name)
-                )
-
-            conf["machine"][self.args.name] = {"cloud": self.args.cloud}
-            if self.args.default:
-                conf["core"]["machine"] = self.args.name
-
-        return 0
-
-
-class CmdMachineRemove(CmdMachineConfig):
-    def run(self):
-        with self.config.edit(self.args.level) as conf:
-            self._check_exists(conf)
-            del conf["machine"][self.args.name]
-
-        up_to_level = self.args.level or "repo"
-        # Remove core.machine refs to this machine in any shadowing configs
-        for level in reversed(self.config.LEVELS):
-            with self.config.edit(level) as conf:
-                if conf["core"].get("machine") == self.args.name:
-                    del conf["core"]["machine"]
-
-            if level == up_to_level:
-                break
-
-        return 0
-
-
-class CmdMachineList(CmdMachineConfig):
-    TABLE_COLUMNS = [
-        "name",
-        "cloud",
-        "region",
-        "image",
-        "spot",
-        "spot_price",
-        "instance_hdd_size",
-        "instance_type",
-        "ssh_private",
-        "startup_script",
-    ]
-
-    PRIVATE_COLUMNS = ["ssh_private", "startup_script"]
-
-    def _hide_private(self, conf):
-        for machine in conf:
-            for column in self.PRIVATE_COLUMNS:
-                if column in conf[machine]:
-                    conf[machine][column] = "***"
-
-    def _show_origin(self):
-        levels = [self.args.level] if self.args.level else self.config.LEVELS
-        for level in levels:
-            conf = self.config.read(level)["machine"]
-            if self.args.name:
-                conf = conf.get(self.args.name, {})
-            self._hide_private(conf)
-            prefix = self._config_file_prefix(True, self.config, level)
-            configs = list(self._format_config(conf, prefix))
-            if configs:
-                ui.write("\n".join(configs))
-
-    def _show_table(self):
-        td = TabularData(self.TABLE_COLUMNS, fill_value="-")
-        conf = self.config.read()["machine"]
-        if self.args.name:
-            conf = {self.args.name: conf.get(self.args.name, {})}
-        self._hide_private(conf)
-        for machine, machine_config in conf.items():
-            machine_config["name"] = machine
-            td.row_from_dict(machine_config)
-        td.dropna("cols", "all")
-        td.render()
-
-    def run(self):
-        if self.args.show_origin:
-            self._show_origin()
-        else:
-            self._show_table()
-        return 0
-
-
-class CmdMachineModify(CmdMachineConfig):
-    def run(self):
-        from dvc.config import merge
-
-        with self.config.edit(self.args.level) as conf:
-            merged = self.config.load_config_to_level(self.args.level)
-            merge(merged, conf)
-            self._check_exists(merged)
-
-            if self.args.name not in conf["machine"]:
-                conf["machine"][self.args.name] = {}
-            section = conf["machine"][self.args.name]
-            if self.args.unset:
-                section.pop(self.args.option, None)
-            else:
-                section[self.args.option] = self.args.value
-        return 0
-
-
-class CmdMachineRename(CmdBase):
-    def _check_exists(self, conf):
-        if self.args.name not in conf["machine"]:
-            raise ConfigError(f"machine '{self.args.name}' doesn't exist.")
-
-    def _rename_default(self, conf):
-        if conf["core"].get("machine") == self.args.name:
-            conf["core"]["machine"] = self.args.new
-
-    def _check_before_rename(self):
-        from dvc.machine import validate_name
-
-        validate_name(self.args.new)
-
-        all_config = self.config.load_config_to_level(None)
-        if self.args.new in all_config.get("machine", {}):
-            raise ConfigError(
-                f"Rename failed. Machine '{self.args.new}' already exists."
-            )
-        ui.write(f"Rename machine '{self.args.name}' to '{self.args.new}'.")
-
-    def run(self):
-        self._check_before_rename()
-
-        with self.config.edit(self.args.level) as conf:
-            self._check_exists(conf)
-            conf["machine"][self.args.new] = conf["machine"][self.args.name]
-            try:
-                assert self.repo.machine
-                self.repo.machine.rename(self.args.name, self.args.new)
-            except DvcException as error:
-                del conf["machine"][self.args.new]
-                raise ConfigError("terraform rename failed") from error
-            del conf["machine"][self.args.name]
-            self._rename_default(conf)
-
-        up_to_level = self.args.level or "repo"
-        for level in reversed(self.config.LEVELS):
-            if level == up_to_level:
-                break
-            with self.config.edit(level) as level_conf:
-                self._rename_default(level_conf)
-
-        return 0
-
-
-class CmdMachineDefault(CmdMachineConfig):
-    def run(self):
-        if self.args.name is None and not self.args.unset:
-            conf = self.config.read(self.args.level)
-            try:
-                ui.write(conf["core"]["machine"])
-            except KeyError:
-                ui.write("No default machine set")
-                return 1
-        else:
-            with self.config.edit(self.args.level) as conf:
-                if self.args.unset:
-                    conf["core"].pop("machine", None)
-                else:
-                    merged_conf = self.config.load_config_to_level(self.args.level)
-                    if (
-                        self.args.name in conf["machine"]
-                        or self.args.name in merged_conf["machine"]
-                    ):
-                        conf["core"]["machine"] = self.args.name
-                    else:
-                        raise ConfigError(
-                            "default machine must be present in machine list."
-                        )
-        return 0
-
-
-class CmdMachineCreate(CmdBase):
-    def run(self):
-        if self.repo.machine is None:
-            raise MachineDisabledError
-
-        self.repo.machine.create(self.args.name)
-        return 0
-
-
-class CmdMachineStatus(CmdBase):
-    INSTANCE_FIELD = ["name", "instance", "status"]
-    SHOWN_FIELD = [
-        "cloud",
-        "instance_ip",
-        "instance_type",
-        "instance_hdd_size",
-        "instance_gpu",
-    ]
-    FILL_VALUE = "-"
-
-    def _add_row(
-        self,
-        name: str,
-        all_status: List[Dict],
-        td: TabularData,
-    ):
-        if not all_status:
-            row = [
-                name,
-                self.FILL_VALUE,
-                "offline",
-            ]  # back to `None` after #7167
-            td.append(row)
-        for i, status in enumerate(all_status, start=1):
-            row = [name, f"num_{i}", "running" if status else "offline"]
-            for field in self.SHOWN_FIELD:
-                value = str(status.get(field, ""))
-                row.append(value)
-            td.append(row)
-
-    def run(self):
-        if self.repo.machine is None:
-            raise MachineDisabledError
-
-        td = TabularData(
-            self.INSTANCE_FIELD + self.SHOWN_FIELD, fill_value=self.FILL_VALUE
-        )
-
-        if self.args.name:
-            all_status = list(self.repo.machine.status(self.args.name))
-            self._add_row(self.args.name, all_status, td)
-        else:
-            name_set = set()
-            for level in self.repo.config.LEVELS:
-                conf = self.repo.config.read(level)["machine"]
-                name_set.update(conf.keys())
-            name_list = list(name_set)
-            for name in sorted(name_list):
-                all_status = list(self.repo.machine.status(name))
-                self._add_row(name, all_status, td)
-
-        td.dropna("cols", "all")
-        td.render()
-        return 0
-
-
-class CmdMachineDestroy(CmdBase):
-    def run(self):
-        if self.repo.machine is None:
-            raise MachineDisabledError
-
-        self.repo.machine.destroy(self.args.name)
-        return 0
-
-
-class CmdMachineSsh(CmdBase):
-    def run(self):
-        if self.repo.machine is None:
-            raise MachineDisabledError
-
-        self.repo.machine.run_shell(self.args.name)
-        return 0
-
-
-def add_parser(subparsers, parent_parser):  # noqa: PLR0915
-    from dvc.commands.config import parent_config_parser
-
-    machine_HELP = "Set up and manage cloud machines."
-    machine_parser = subparsers.add_parser(
-        "machine",
-        parents=[parent_parser],
-        description=append_doc_link(machine_HELP, "machine"),
-        # NOTE: suppress help during development to hide command
-        # help=machine_HELP,
-        formatter_class=argparse.RawDescriptionHelpFormatter,
-    )
-
-    machine_subparsers = machine_parser.add_subparsers(
-        dest="cmd",
-        help="Use `dvc machine CMD --help` for command-specific help.",
-    )
-
-    fix_subparsers(machine_subparsers)
-
-    machine_ADD_HELP = "Add a new data machine."
-    machine_add_parser = machine_subparsers.add_parser(
-        "add",
-        parents=[parent_config_parser, parent_parser],
-        description=append_doc_link(machine_ADD_HELP, "machine/add"),
-        help=machine_ADD_HELP,
-        formatter_class=argparse.RawDescriptionHelpFormatter,
-    )
-    machine_add_parser.add_argument("name", help="Name of the machine")
-    machine_add_parser.add_argument(
-        "cloud",
-        help="Machine cloud. See full list of supported clouds at {}".format(
-            format_link(
-                "https://github.com/iterative/terraform-provider-iterative#machine"
-            )
-        ),
-    )
-    machine_add_parser.add_argument(
-        "-d",
-        "--default",
-        action="store_true",
-        default=False,
-        help="Set as default machine.",
-    )
-    machine_add_parser.add_argument(
-        "-f",
-        "--force",
-        action="store_true",
-        default=False,
-        help="Force overwriting existing configs",
-    )
-    machine_add_parser.set_defaults(func=CmdMachineAdd)
-
-    machine_DEFAULT_HELP = "Set/unset the default machine."
-    machine_default_parser = machine_subparsers.add_parser(
-        "default",
-        parents=[parent_config_parser, parent_parser],
-        description=append_doc_link(machine_DEFAULT_HELP, "machine/default"),
-        help=machine_DEFAULT_HELP,
-        formatter_class=argparse.RawDescriptionHelpFormatter,
-    )
-    machine_default_parser.add_argument("name", nargs="?", help="Name of the machine")
-    machine_default_parser.add_argument(
-        "-u",
-        "--unset",
-        action="store_true",
-        default=False,
-        help="Unset default machine.",
-    )
-    machine_default_parser.set_defaults(func=CmdMachineDefault)
-
-    machine_LIST_HELP = "List the configuration of one/all machines."
-    machine_list_parser = machine_subparsers.add_parser(
-        "list",
-        parents=[parent_config_parser, parent_parser],
-        description=append_doc_link(machine_LIST_HELP, "machine/list"),
-        help=machine_LIST_HELP,
-        formatter_class=argparse.RawDescriptionHelpFormatter,
-    )
-    machine_list_parser.add_argument(
-        "--show-origin",
-        default=False,
-        action="store_true",
-        help="Show the source file containing each config value.",
-    )
-    machine_list_parser.add_argument(
-        "name",
-        nargs="?",
-        type=str,
-        help="name of machine to specify",
-    )
-    machine_list_parser.set_defaults(func=CmdMachineList)
-    machine_MODIFY_HELP = "Modify the configuration of an machine."
-    machine_modify_parser = machine_subparsers.add_parser(
-        "modify",
-        parents=[parent_config_parser, parent_parser],
-        description=append_doc_link(machine_MODIFY_HELP, "machine/modify"),
-        help=machine_MODIFY_HELP,
-        formatter_class=argparse.RawDescriptionHelpFormatter,
-    )
-    machine_modify_parser.add_argument("name", help="Name of the machine")
-    machine_modify_parser.add_argument("option", help="Name of the option to modify.")
-    machine_modify_parser.add_argument(
-        "value", nargs="?", help="(optional) Value of the option."
-    )
-    machine_modify_parser.add_argument(
-        "-u",
-        "--unset",
-        default=False,
-        action="store_true",
-        help="Unset option.",
-    )
-    machine_modify_parser.set_defaults(func=CmdMachineModify)
-
-    machine_RENAME_HELP = "Rename a machine "
-    machine_rename_parser = machine_subparsers.add_parser(
-        "rename",
-        parents=[parent_config_parser, parent_parser],
-        description=append_doc_link(machine_RENAME_HELP, "remote/rename"),
-        help=machine_RENAME_HELP,
-        formatter_class=argparse.RawDescriptionHelpFormatter,
-    )
-    machine_rename_parser.add_argument("name", help="Machine to be renamed")
-    machine_rename_parser.add_argument("new", help="New name of the machine")
-    machine_rename_parser.set_defaults(func=CmdMachineRename)
-
-    machine_REMOVE_HELP = "Remove an machine."
-    machine_remove_parser = machine_subparsers.add_parser(
-        "remove",
-        parents=[parent_config_parser, parent_parser],
-        description=append_doc_link(machine_REMOVE_HELP, "machine/remove"),
-        help=machine_REMOVE_HELP,
-        formatter_class=argparse.RawDescriptionHelpFormatter,
-    )
-    machine_remove_parser.add_argument("name", help="Name of the machine to remove.")
-    machine_remove_parser.set_defaults(func=CmdMachineRemove)
-
-    machine_CREATE_HELP = "Create and start a machine instance."
-    machine_create_parser = machine_subparsers.add_parser(
-        "create",
-        parents=[parent_parser],
-        description=append_doc_link(machine_CREATE_HELP, "machine/create"),
-        help=machine_CREATE_HELP,
-        formatter_class=argparse.RawDescriptionHelpFormatter,
-    )
-    machine_create_parser.add_argument("name", help="Name of the machine to create.")
-    machine_create_parser.set_defaults(func=CmdMachineCreate)
-
-    machine_STATUS_HELP = "List the status of running instances for one/all machines."
-    machine_status_parser = machine_subparsers.add_parser(
-        "status",
-        parents=[parent_parser],
-        description=append_doc_link(machine_STATUS_HELP, "machine/status"),
-        help=machine_STATUS_HELP,
-        formatter_class=argparse.RawDescriptionHelpFormatter,
-    )
-    machine_status_parser.add_argument(
-        "name", nargs="?", help="(optional) Name of the machine."
-    )
-    machine_status_parser.set_defaults(func=CmdMachineStatus)
-
-    machine_DESTROY_HELP = "Destroy an machine instance."
-    machine_destroy_parser = machine_subparsers.add_parser(
-        "destroy",
-        parents=[parent_parser],
-        description=append_doc_link(machine_DESTROY_HELP, "machine/destroy"),
-        help=machine_DESTROY_HELP,
-        formatter_class=argparse.RawDescriptionHelpFormatter,
-    )
-    machine_destroy_parser.add_argument(
-        "name", help="Name of the machine instance to destroy."
-    )
-    machine_destroy_parser.set_defaults(func=CmdMachineDestroy)
-
-    machine_SSH_HELP = "Connect to a machine via SSH."
-    machine_ssh_parser = machine_subparsers.add_parser(
-        "ssh",
-        parents=[parent_parser],
-        description=append_doc_link(machine_SSH_HELP, "machine/ssh"),
-        help=machine_SSH_HELP,
-        formatter_class=argparse.RawDescriptionHelpFormatter,
-    )
-    machine_ssh_parser.add_argument(
-        "name", help="Name of the machine instance to connect to."
-    )
-    machine_ssh_parser.set_defaults(func=CmdMachineSsh)

dvc/commands/metrics.py

@@ -1,14 +1,13 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link, fix_subparsers
-from dvc.exceptions import DvcException
+from dvc.log import logger
 from dvc.ui import ui
 from dvc.utils.serialize import encode_exception
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 DEFAULT_PRECISION = 5
@@ -20,17 +19,25 @@ class CmdMetricsBase(CmdBase):
 
 class CmdMetricsShow(CmdMetricsBase):
     def run(self):
-        try:
-            metrics = self.repo.metrics.show(
-                self.args.targets,
-                all_branches=self.args.all_branches,
-                all_tags=self.args.all_tags,
-                all_commits=self.args.all_commits,
-                recursive=self.args.recursive,
+        from dvc.repo.metrics.show import to_relpath
+        from dvc.utils import errored_revisions
+
+        metrics = self.repo.metrics.show(
+            self.args.targets,
+            all_branches=self.args.all_branches,
+            all_tags=self.args.all_tags,
+            all_commits=self.args.all_commits,
+        )
+        metrics = {
+            k: to_relpath(self.repo.fs, self.repo.root_dir, v)
+            for k, v in metrics.items()
+        }
+
+        if errored := errored_revisions(metrics):
+            ui.error_write(
+                "DVC failed to load some metrics for following revisions:"
+                f" '{', '.join(errored)}'."
             )
-        except DvcException:
-            logger.exception("")
-            return 1
 
         if self.args.json:
             ui.write_json(metrics, default=encode_exception)
@@ -52,17 +59,26 @@ class CmdMetricsShow(CmdMetricsBase):
 
 class CmdMetricsDiff(CmdMetricsBase):
     def run(self):
-        try:
-            diff = self.repo.metrics.diff(
-                a_rev=self.args.a_rev,
-                b_rev=self.args.b_rev,
-                targets=self.args.targets,
-                recursive=self.args.recursive,
-                all=self.args.all,
+        import os
+        from os.path import relpath
+
+        diff_result = self.repo.metrics.diff(
+            a_rev=self.args.a_rev,
+            b_rev=self.args.b_rev,
+            targets=self.args.targets,
+            all=self.args.all,
+        )
+
+        errored = [rev for rev, err in diff_result.get("errors", {}).items() if err]
+        if errored:
+            ui.error_write(
+                "DVC failed to load some metrics for following revisions:"
+                f" '{', '.join(errored)}'."
             )
-        except DvcException:
-            logger.exception("failed to show metrics diff")
-            return 1
+
+        start = relpath(os.getcwd(), self.repo.root_dir)
+        diff = diff_result.get("diff", {})
+        diff = {relpath(path, start): result for path, result in diff.items()}
 
         if self.args.json:
             ui.write_json(diff)
@@ -184,10 +200,14 @@ def add_parser(subparsers, parent_parser):
         formatter_class=argparse.RawDescriptionHelpFormatter,
     )
     metrics_diff_parser.add_argument(
-        "a_rev", nargs="?", help="Old Git commit to compare (defaults to HEAD)"
+        "a_rev",
+        nargs="?",
+        help="Old Git commit to compare (defaults to HEAD)",
+        default="HEAD",
     )
     metrics_diff_parser.add_argument(
         "b_rev",
+        default="workspace",
         nargs="?",
         help="New Git commit to compare (defaults to the current workspace)",
     )

dvc/commands/move.py

@@ -1,12 +1,12 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
 from dvc.exceptions import DvcException
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdMove(CmdBase):
@@ -30,6 +30,7 @@ def add_parser(subparsers, parent_parser):
 
     move_parser = subparsers.add_parser(
         "move",
+        aliases=["mv"],
         parents=[parent_parser],
         description=append_doc_link(MOVE_DESCRIPTION, "move"),
         help=MOVE_HELP,

dvc/commands/params.py

@@ -1,30 +1,39 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link, fix_subparsers
-from dvc.exceptions import DvcException
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdParamsDiff(CmdBase):
     UNINITIALIZED = True
 
     def run(self):
-        try:
-            diff = self.repo.params.diff(
-                a_rev=self.args.a_rev,
-                b_rev=self.args.b_rev,
-                targets=self.args.targets,
-                all=self.args.all,
-                deps=self.args.deps,
+        import os
+        from os.path import relpath
+
+        diff_result = self.repo.params.diff(
+            a_rev=self.args.a_rev,
+            b_rev=self.args.b_rev,
+            targets=self.args.targets,
+            all=self.args.all,
+            deps_only=self.args.deps,
+        )
+
+        errored = [rev for rev, err in diff_result.get("errors", {}).items() if err]
+        if errored:
+            ui.error_write(
+                "DVC failed to load some metrics for following revisions:"
+                f" '{', '.join(errored)}'."
             )
-        except DvcException:
-            logger.exception("failed to show params diff")
-            return 1
+
+        start = relpath(os.getcwd(), self.repo.root_dir)
+        diff = diff_result.get("diff", {})
+        diff = {relpath(path, start): result for path, result in diff.items()}
 
         if self.args.json:
             ui.write_json(diff)
@@ -74,10 +83,14 @@ def add_parser(subparsers, parent_parser):
         formatter_class=argparse.RawDescriptionHelpFormatter,
     )
     params_diff_parser.add_argument(
-        "a_rev", nargs="?", help="Old Git commit to compare (defaults to HEAD)"
+        "a_rev",
+        nargs="?",
+        default="HEAD",
+        help="Old Git commit to compare (defaults to HEAD)",
     )
     params_diff_parser.add_argument(
         "b_rev",
+        default="workspace",
         nargs="?",
         help="New Git commit to compare (defaults to the current workspace)",
     )

dvc/commands/plots.py

@@ -1,5 +1,4 @@
 import argparse
-import logging
 import os
 from typing import TYPE_CHECKING, Dict, List, Optional
 
@@ -9,6 +8,7 @@ from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link, fix_subparsers
 from dvc.exceptions import DvcException
+from dvc.log import logger
 from dvc.ui import ui
 from dvc.utils import format_link
 
@@ -16,7 +16,7 @@ if TYPE_CHECKING:
     from dvc.render.match import RendererWithErrors
 
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 def _show_json(
@@ -59,49 +59,6 @@ def _show_json(
     ui.write_json(compact({"errors": all_errors, "data": data}), highlight=False)
 
 
-def _adjust_vega_renderers(renderers):
-    from dvc.render import REVISION_FIELD, VERSION_FIELD
-    from dvc_render import VegaRenderer
-
-    for r in renderers:
-        if isinstance(r, VegaRenderer):
-            if _data_versions_count(r) > 1:
-                summary = _summarize_version_infos(r)
-                for dp in r.datapoints:
-                    vi = dp.pop(VERSION_FIELD, {})
-                    keys = list(vi.keys())
-                    for key in keys:
-                        if not (len(summary.get(key, set())) > 1):
-                            vi.pop(key)
-                    if vi:
-                        dp["rev"] = "::".join(vi.values())
-            else:
-                for dp in r.datapoints:
-                    dp[REVISION_FIELD] = dp[VERSION_FIELD]["revision"]
-                    dp.pop(VERSION_FIELD, {})
-
-
-def _summarize_version_infos(renderer):
-    from collections import defaultdict
-
-    from dvc.render import VERSION_FIELD
-
-    result = defaultdict(set)
-
-    for dp in renderer.datapoints:
-        for key, value in dp.get(VERSION_FIELD, {}).items():
-            result[key].add(value)
-    return dict(result)
-
-
-def _data_versions_count(renderer):
-    from itertools import product
-
-    summary = _summarize_version_infos(renderer)
-    x = product(summary.get("filename", {None}), summary.get("field", {None}))
-    return len(set(x))
-
-
 class CmdPlots(CmdBase):
     def _func(self, *args, **kwargs):
         raise NotImplementedError
@@ -175,11 +132,10 @@ class CmdPlots(CmdBase):
                 return 0
 
             renderers = [r.renderer for r in renderers_with_errors]
-            _adjust_vega_renderers(renderers)
             if self.args.show_vega:
                 renderer = first(filter(lambda r: r.TYPE == "vega", renderers))
                 if renderer:
-                    ui.write_json(renderer.get_filled_template(as_string=False))
+                    ui.write_json(renderer.get_filled_template())
                 return 0
 
             output_file: Path = (Path.cwd() / out).resolve() / "index.html"

dvc/commands/queue/kill.py

@@ -1,10 +1,10 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdQueueKill(CmdBase):

dvc/commands/queue/logs.py

@@ -1,10 +1,10 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdQueueLogs(CmdBase):

dvc/commands/queue/remove.py

@@ -1,12 +1,12 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
 from dvc.exceptions import InvalidArgumentError
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdQueueRemove(CmdBase):

dvc/commands/queue/start.py

@@ -1,11 +1,11 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdQueueStart(CmdBase):

dvc/commands/queue/status.py

@@ -1,12 +1,12 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
 from dvc.compare import TabularData
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdQueueStatus(CmdBase):

dvc/commands/queue/stop.py

@@ -1,11 +1,11 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdQueueStop(CmdBase):

dvc/commands/remote.py

@@ -30,8 +30,8 @@ class CmdRemoteAdd(CmdRemote):
         with self.config.edit(self.args.level) as conf:
             if self.args.name in conf["remote"] and not self.args.force:
                 raise ConfigError(
-                    "remote '{}' already exists. Use `-f|--force` to "
-                    "overwrite it.".format(self.args.name)
+                    f"remote '{self.args.name}' already exists. Use `-f|--force` to "
+                    "overwrite it."
                 )
 
             conf["remote"][self.args.name] = {"url": self.args.url}
@@ -127,9 +127,7 @@ class CmdRemoteRename(CmdRemote):
         all_config = self.config.load_config_to_level(None)
         if self.args.new in all_config.get("remote", {}):
             raise ConfigError(
-                "Rename failed. Remote name '{}' already exists.".format(
-                    {self.args.new}
-                )
+                f"Rename failed. Remote name {self.args.new!r} already exists."
             )
 
         with self.config.edit(self.args.level) as conf:

dvc/commands/remove.py

@@ -1,12 +1,12 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
 from dvc.exceptions import DvcException
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdRemove(CmdBase):
@@ -26,6 +26,7 @@ def add_parser(subparsers, parent_parser):
     )
     remove_parser = subparsers.add_parser(
         "remove",
+        aliases=["rm"],
         parents=[parent_parser],
         description=append_doc_link(REMOVE_HELP, "remove"),
         help=REMOVE_HELP,

dvc/commands/repro.py

@@ -33,6 +33,7 @@ class CmdRepro(CmdBase):
             "force_downstream": self.args.force_downstream,
             "pull": self.args.pull,
             "allow_missing": self.args.allow_missing,
+            "on_error": self.args.on_error,
         }
 
     @property
@@ -137,6 +138,26 @@ and then the stage name name.
             "Only print the commands that would be executed without actually executing."
         ),
     )
+    repro_parser.add_argument(
+        "-k",
+        "--keep-going",
+        action="store_const",
+        default="fail",
+        const="keep-going",
+        dest="on_error",
+        help=(
+            "Continue executing, skipping stages having dependencies "
+            "on the failed stages"
+        ),
+    )
+    repro_parser.add_argument(
+        "--ignore-errors",
+        action="store_const",
+        default="fail",
+        const="ignore",
+        dest="on_error",
+        help="Ignore errors from stages.",
+    )
 
 
 def add_parser(subparsers, parent_parser):

dvc/commands/root.py

@@ -1,11 +1,11 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBaseNoRepo
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 from dvc.utils import relpath
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdRoot(CmdBaseNoRepo):

dvc/commands/stage.py

@@ -7,6 +7,7 @@ from typing import TYPE_CHECKING, Dict, Iterable, List
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link, fix_subparsers
+from dvc.log import logger
 from dvc.utils.cli_parse import parse_params
 from dvc.utils.humanize import truncate_text
 
@@ -14,7 +15,7 @@ if TYPE_CHECKING:
     from dvc.output import Output
     from dvc.stage import Stage
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 MAX_TEXT_LENGTH = 80
 
@@ -67,9 +68,7 @@ class CmdStageList(CmdBase):
     def _get_stages(self) -> Iterable["Stage"]:
         if self.args.all:
             stages: List["Stage"] = self.repo.index.stages
-            logger.trace(  # type: ignore[attr-defined]
-                "%d no. of stages found", len(stages)
-            )
+            logger.trace("%d no. of stages found", len(stages))
             return stages
 
         # removing duplicates while maintaining order
@@ -195,12 +194,6 @@ def _add_common_args(parser):
         help="Declare output file or directory (do not put into DVC cache).",
         metavar="<filename>",
     ).complete = completion.FILE
-    parser.add_argument(
-        "--external",
-        action="store_true",
-        default=False,
-        help="Allow outputs that are outside of the DVC repository.",
-    )
     parser.add_argument(
         "--outs-persist",
         action="append",

dvc/commands/status.py

@@ -1,11 +1,10 @@
-import logging
-
 from dvc.commands.data_sync import CmdDataBase
 from dvc.exceptions import DvcException
+from dvc.log import logger
 from dvc.ui import ui
 from dvc.utils import format_link
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdDataStatus(CmdDataBase):

dvc/commands/studio.py

@@ -0,0 +1,175 @@
+import argparse
+import os
+
+from funcy import get_in
+
+from dvc.cli.utils import append_doc_link, fix_subparsers
+from dvc.commands.config import CmdConfig
+from dvc.log import logger
+
+logger = logger.getChild(__name__)
+
+
+class CmdStudioLogin(CmdConfig):
+    def run(self):
+        from dvc_studio_client.auth import StudioAuthError, get_access_token
+
+        from dvc.env import DVC_STUDIO_URL
+        from dvc.ui import ui
+        from dvc.utils.studio import STUDIO_URL
+
+        name = self.args.name
+        hostname = self.args.hostname or os.environ.get(DVC_STUDIO_URL) or STUDIO_URL
+        scopes = self.args.scopes
+
+        try:
+            token_name, access_token = get_access_token(
+                token_name=name,
+                hostname=hostname,
+                scopes=scopes,
+                use_device_code=self.args.no_open,
+                client_name="DVC",
+            )
+        except StudioAuthError as e:
+            ui.error_write(str(e))
+            return 1
+
+        self.save_config(hostname, access_token)
+        ui.write(
+            "Authentication has been successfully completed."
+            "The generated token will now be accessible as"
+            f" {token_name} in the user's Studio profile."
+        )
+        return 0
+
+    def save_config(self, hostname, token):
+        with self.config.edit("global") as conf:
+            conf["studio"]["token"] = token
+            conf["studio"]["url"] = hostname
+
+
+class CmdStudioLogout(CmdConfig):
+    def run(self):
+        from dvc.ui import ui
+
+        with self.config.edit("global") as conf:
+            if not get_in(conf, ["studio", "token"]):
+                ui.error_write("Not logged in to Studio.")
+                return 1
+
+            del conf["studio"]["token"]
+
+        ui.write("Logged out from Studio")
+        return 0
+
+
+class CmdStudioToken(CmdConfig):
+    def run(self):
+        from dvc.ui import ui
+
+        conf = self.config.read("global")
+        token = get_in(conf, ["studio", "token"])
+        if not token:
+            ui.error_write("Not logged in to Studio.")
+            return 1
+
+        ui.write(token)
+        return 0
+
+
+def add_parser(subparsers, parent_parser):
+    STUDIO_HELP = "Commands to authenticate DVC with Iterative Studio"
+    STUDIO_DESCRIPTION = (
+        "Authenticate DVC with Studio and set the token."
+        " Once this token has been properly configured,\n"
+        " DVC will utilize it for seamlessly sharing live experiments\n"
+        " and sending notifications to Studio regarding any experiments"
+        " that have been pushed."
+    )
+
+    studio_parser = subparsers.add_parser(
+        "studio",
+        parents=[parent_parser],
+        description=append_doc_link(STUDIO_DESCRIPTION, "studio"),
+        help=STUDIO_HELP,
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+    )
+    studio_subparser = studio_parser.add_subparsers(
+        dest="cmd",
+        help="Use `DVC studio CMD --help` to display command-specific help.",
+    )
+    fix_subparsers(studio_subparser)
+
+    STUDIO_LOGIN_HELP = "Authenticate DVC with Studio host"
+    STUDIO_LOGIN_DESCRIPTION = (
+        "By default, this command authenticates the DVC with Studio\n"
+        " using default scopes and assigns a random name as the token name."
+    )
+    login_parser = studio_subparser.add_parser(
+        "login",
+        parents=[parent_parser],
+        description=append_doc_link(STUDIO_LOGIN_DESCRIPTION, "studio/login"),
+        help=STUDIO_LOGIN_HELP,
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+    )
+
+    login_parser.add_argument(
+        "-H",
+        "--hostname",
+        action="store",
+        default=None,
+        help="The hostname of the Studio instance to authenticate with.",
+    )
+    login_parser.add_argument(
+        "-s",
+        "--scopes",
+        action="store",
+        default=None,
+        help="The scopes for the authentication token. ",
+    )
+
+    login_parser.add_argument(
+        "-n",
+        "--name",
+        action="store",
+        default=None,
+        help="The name of the authentication token. It will be used to\n"
+        "identify token shown in Studio profile.",
+    )
+
+    login_parser.add_argument(
+        "--no-open",
+        action="store_true",
+        default=False,
+        help="Use authentication flow based on user code.\n"
+        "You will be presented with user code to enter in browser.\n"
+        "DVC will also use this if it cannot launch browser on your behalf.",
+    )
+    login_parser.set_defaults(func=CmdStudioLogin)
+
+    STUDIO_LOGOUT_HELP = "Logout user from Studio"
+    STUDIO_LOGOUT_DESCRIPTION = (
+        "This removes the studio token from your global config.\n"
+    )
+
+    logout_parser = studio_subparser.add_parser(
+        "logout",
+        parents=[parent_parser],
+        description=append_doc_link(STUDIO_LOGOUT_DESCRIPTION, "studio/logout"),
+        help=STUDIO_LOGOUT_HELP,
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+    )
+
+    logout_parser.set_defaults(func=CmdStudioLogout)
+
+    STUDIO_TOKEN_HELP = "View the token dvc uses to contact Studio"  # noqa: S105 # nosec B105
+
+    logout_parser = studio_subparser.add_parser(
+        "token",
+        parents=[parent_parser],
+        description=append_doc_link(STUDIO_TOKEN_HELP, "studio/token"),
+        help=STUDIO_TOKEN_HELP,
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+    )
+
+    logout_parser.set_defaults(func=CmdStudioToken)

dvc/commands/unprotect.py

@@ -1,12 +1,12 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
 from dvc.exceptions import DvcException
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdUnprotect(CmdBase):

dvc/commands/update.py

@@ -1,12 +1,12 @@
 import argparse
-import logging
 
 from dvc.cli import completion
 from dvc.cli.command import CmdBase
 from dvc.cli.utils import append_doc_link
 from dvc.exceptions import DvcException
+from dvc.log import logger
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdUpdate(CmdBase):

dvc/commands/version.py

@@ -1,11 +1,11 @@
 import argparse
-import logging
 
 from dvc.cli.command import CmdBaseNoRepo
 from dvc.cli.utils import append_doc_link
+from dvc.log import logger
 from dvc.ui import ui
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class CmdVersion(CmdBaseNoRepo):

dvc/compare.py

@@ -57,7 +57,7 @@ class TabularData(MutableSequence[Sequence["CellT"]]):
         return self._columns[name]
 
     def items(self) -> ItemsView[str, Column]:
-        projection = {k: self.column(k) for k in self.keys()}  # noqa: SIM118
+        projection = {k: self.column(k) for k in self.keys()}
         return projection.items()
 
     def keys(self) -> List[str]:
@@ -171,8 +171,7 @@ class TabularData(MutableSequence[Sequence["CellT"]]):
                 self.add_column(key)
 
         row: List["CellT"] = [
-            with_value(d.get(key), self._fill_value)
-            for key in self.keys()  # noqa: SIM118
+            with_value(d.get(key), self._fill_value) for key in self.keys()
         ]
         self.append(row)
 
@@ -227,7 +226,7 @@ class TabularData(MutableSequence[Sequence["CellT"]]):
             to_drop -= match_line
 
         if axis == "rows":
-            for name in self.keys():  # noqa: SIM118
+            for name in self.keys():
                 self._columns[name] = Column(
                     [x for n, x in enumerate(self._columns[name]) if n not in to_drop]
                 )
@@ -275,7 +274,7 @@ class TabularData(MutableSequence[Sequence["CellT"]]):
                 else:
                     unique_rows.append(tuple_row)
 
-            for name in self.keys():  # noqa: SIM118
+            for name in self.keys():
                 self._columns[name] = Column(
                     [
                         x

dvc/config.py

@@ -1,5 +1,4 @@
 """DVC config objects."""
-import logging
 import os
 import re
 from contextlib import contextmanager
@@ -9,14 +8,15 @@ from typing import TYPE_CHECKING, Dict, Optional
 from funcy import compact, memoize, re_find
 
 from dvc.exceptions import DvcException, NotDvcRepoError
+from dvc.log import logger
 
 from .utils.objects import cached_property
 
 if TYPE_CHECKING:
     from dvc.fs import FileSystem
-    from dvc.types import DictStrAny, StrPath
+    from dvc.types import DictStrAny
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class ConfigError(DvcException):
@@ -89,21 +89,31 @@ class Config(dict):
 
     def __init__(
         self,
-        dvc_dir: Optional["StrPath"] = None,
+        dvc_dir: Optional[str] = None,
+        local_dvc_dir: Optional[str] = None,
         validate: bool = True,
         fs: Optional["FileSystem"] = None,
         config: Optional["DictStrAny"] = None,
-    ):  # pylint: disable=super-init-not-called
+        remote: Optional[str] = None,
+        remote_config: Optional["DictStrAny"] = None,
+    ):
         from dvc.fs import LocalFileSystem
 
+        dvc_dir = os.fspath(dvc_dir) if dvc_dir else None
         self.dvc_dir = dvc_dir
         self.wfs = LocalFileSystem()
         self.fs = fs or self.wfs
 
         if dvc_dir:
-            self.dvc_dir = self.fs.path.abspath(self.fs.path.realpath(dvc_dir))
+            self.dvc_dir = self.fs.abspath(dvc_dir)
 
-        self.load(validate=validate, config=config)
+        self.local_dvc_dir = local_dvc_dir
+        if not fs and not local_dvc_dir:
+            self.local_dvc_dir = dvc_dir
+
+        self.load(
+            validate=validate, config=config, remote=remote, remote_config=remote_config
+        )
 
     @classmethod
     def from_cwd(cls, fs: Optional["FileSystem"] = None, **kwargs):
@@ -135,8 +145,10 @@ class Config(dict):
         }
 
         if self.dvc_dir is not None:
-            files["repo"] = self.fs.path.join(self.dvc_dir, self.CONFIG)
-            files["local"] = self.fs.path.join(self.dvc_dir, self.CONFIG_LOCAL)
+            files["repo"] = self.fs.join(self.dvc_dir, self.CONFIG)
+
+        if self.local_dvc_dir is not None:
+            files["local"] = self.wfs.join(self.local_dvc_dir, self.CONFIG_LOCAL)
 
         return files
 
@@ -154,7 +166,16 @@ class Config(dict):
         with open(config_file, "w+", encoding="utf-8"):
             return Config(dvc_dir)
 
-    def load(self, validate: bool = True, config: Optional["DictStrAny"] = None):
+    def merge(self, config):
+        merge(self, config)
+
+    def load(
+        self,
+        validate: bool = True,
+        config: Optional["DictStrAny"] = None,
+        remote: Optional[str] = None,
+        remote_config: Optional["DictStrAny"] = None,
+    ):
         """Loads config from all the config files.
 
         Raises:
@@ -169,6 +190,17 @@ class Config(dict):
             conf = self.validate(conf)
 
         self.clear()
+
+        if remote:
+            conf["core"]["remote"] = remote
+
+        if remote_config:
+            remote = remote or conf["core"].get("remote")
+            if not remote:
+                raise ValueError("Missing remote name")
+
+            merge(conf, {"remote": {remote: remote_config}})
+
         self.update(conf)
 
     def _get_fs(self, level):
@@ -176,23 +208,32 @@ class Config(dict):
         # the repo.
         return self.fs if level == "repo" else self.wfs
 
-    def _load_config(self, level):
+    @staticmethod
+    def load_file(path, fs=None) -> dict:
         from configobj import ConfigObj, ConfigObjError
 
+        from dvc.fs import localfs
+
+        fs = fs or localfs
+
+        with fs.open(path) as fobj:
+            try:
+                conf_obj = ConfigObj(fobj)
+            except UnicodeDecodeError as exc:
+                raise ConfigError(str(exc)) from exc
+            except ConfigObjError as exc:
+                raise ConfigError(str(exc)) from exc
+
+        return _parse_named(_lower_keys(conf_obj.dict()))
+
+    def _load_config(self, level):
         filename = self.files[level]
         fs = self._get_fs(level)
 
-        if fs.exists(filename):
-            with fs.open(filename) as fobj:
-                try:
-                    conf_obj = ConfigObj(fobj)
-                except UnicodeDecodeError as exc:
-                    raise ConfigError(str(exc)) from exc
-                except ConfigObjError as exc:
-                    raise ConfigError(str(exc)) from exc
-        else:
-            conf_obj = ConfigObj()
-        return _parse_named(_lower_keys(conf_obj.dict()))
+        try:
+            return self.load_file(filename, fs=fs)
+        except FileNotFoundError:
+            return {}
 
     def _save_config(self, level, conf_dict):
         from configobj import ConfigObj
@@ -220,21 +261,30 @@ class Config(dict):
         return conf
 
     @staticmethod
-    def _load_paths(conf, filename):
-        abs_conf_dir = os.path.abspath(os.path.dirname(filename))
+    def _resolve(conf_dir, path):
+        from .config_schema import ExpPath, RelPath
 
-        def resolve(path):
-            from .config_schema import RelPath
+        if re.match(r"\w+://", path):
+            return path
 
-            if os.path.isabs(path) or re.match(r"\w+://", path):
-                return path
+        if os.path.isabs(path):
+            return path
 
-            # on windows convert slashes to backslashes
-            # to have path compatible with abs_conf_dir
-            if os.path.sep == "\\" and "/" in path:
-                path = path.replace("/", "\\")
+        # on windows convert slashes to backslashes
+        # to have path compatible with abs_conf_dir
+        if os.path.sep == "\\" and "/" in path:
+            path = path.replace("/", "\\")
 
-            return RelPath(os.path.join(abs_conf_dir, path))
+        expanded = os.path.expanduser(path)
+        if os.path.isabs(expanded):
+            return ExpPath(expanded, path)
+
+        return RelPath(os.path.abspath(os.path.join(conf_dir, path)))
+
+    @classmethod
+    def _load_paths(cls, conf, filename):
+        conf_dir = os.path.abspath(os.path.dirname(filename))
+        resolve = partial(cls._resolve, conf_dir)
 
         return Config._map_dirs(conf, resolve)
 
@@ -243,14 +293,20 @@ class Config(dict):
         from dvc.fs import localfs
         from dvc.utils import relpath
 
-        from .config_schema import RelPath
+        from .config_schema import ExpPath, RelPath
 
         if re.match(r"\w+://", path):
             return path
 
+        if isinstance(path, ExpPath):
+            return path.def_path
+
+        if os.path.expanduser(path) != path:
+            return localfs.as_posix(path)
+
         if isinstance(path, RelPath) or not os.path.isabs(path):
             path = relpath(path, conf_dir)
-            return localfs.path.as_posix(path)
+            return localfs.as_posix(path)
 
         return path
 
@@ -334,10 +390,10 @@ class Config(dict):
 
 
 def _parse_named(conf):
-    result: Dict[str, Dict] = {"remote": {}, "machine": {}}
+    result: Dict[str, Dict] = {"remote": {}, "machine": {}, "db": {}}
 
     for section, val in conf.items():
-        match = re_find(r'^\s*(remote|machine)\s*"(.*)"\s*$', section)
+        match = re_find(r'^\s*(remote|machine|db)\s*"(.*)"\s*$', section)
         if match:
             key, name = match
             result[key][name] = val
@@ -352,7 +408,7 @@ def _pack_named(conf):
     result = compact(conf)
 
     # Transform remote.name -> 'remote "name"'
-    for key in ("remote", "machine"):
+    for key in ("remote", "machine", "db"):
         for name, val in conf[key].items():
             result[f'{key} "{name}"'] = val
         result.pop(key, None)

dvc/config_schema.py

@@ -1,4 +1,3 @@
-import logging
 import os
 from urllib.parse import urlparse
 
@@ -8,6 +7,7 @@ from voluptuous import (
     All,
     Any,
     Coerce,
+    Exclusive,
     Invalid,
     Lower,
     Optional,
@@ -15,7 +15,9 @@ from voluptuous import (
     Schema,
 )
 
-logger = logging.getLogger(__name__)
+from dvc.log import logger
+
+logger = logger.getChild(__name__)
 
 Bool = All(
     Lower,
@@ -74,8 +76,19 @@ def ByUrl(mapping):  # noqa: N802
     return validate
 
 
+class ExpPath(str):
+    __slots__ = ("def_path",)
+
+    def_path: str
+
+    def __new__(cls, string, def_path):
+        ret = super().__new__(cls, string)
+        ret.def_path = def_path
+        return ret
+
+
 class RelPath(str):
-    pass
+    __slots__ = ()
 
 
 class FeatureSchema(Schema):
@@ -244,6 +257,9 @@ SCHEMA = {
                     "exclude_shared_token_cache_credential": Bool,
                     "exclude_managed_identity_credential": Bool,
                     Optional("verify", default=False): Bool,
+                    "timeout": int,
+                    "read_timeout": int,
+                    "connection_timeout": int,
                     **REMOTE_COMMON,
                 },
                 "oss": {
@@ -302,6 +318,8 @@ SCHEMA = {
     "feature": FeatureSchema(
         {
             Optional("machine", default=False): Bool,
+            "dbt_profile": str,
+            "dbt_target": str,
         },
     ),
     "plots": {
@@ -324,7 +342,8 @@ SCHEMA = {
     },
     "hydra": {
         Optional("enabled", default=False): Bool,
-        "config_dir": str,
+        Exclusive("config_dir", "config_source"): str,
+        Exclusive("config_module", "config_source"): str,
         "config_name": str,
     },
     "studio": {
@@ -333,4 +352,11 @@ SCHEMA = {
         "repo_url": str,
         Optional("offline", default=False): Bool,
     },
+    "db": {
+        str: {
+            "url": str,
+            "username": str,
+            "password": str,
+        },
+    },
 }

dvc/daemon.py

@@ -3,136 +3,185 @@
 import inspect
 import logging
 import os
-import platform
+import subprocess
 import sys
-from subprocess import Popen  # nosec B404
-from typing import List
+from contextlib import nullcontext
+from typing import TYPE_CHECKING, Any, List, Mapping, Optional, Sequence, Union
 
-from dvc.env import DVC_DAEMON
+from dvc.log import logger
+
+if TYPE_CHECKING:
+    from typing import ContextManager
+
+from dvc.env import DVC_DAEMON, DVC_DAEMON_LOGFILE
 from dvc.utils import fix_env, is_binary
+from dvc.utils.collections import ensure_list
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
-def _suppress_resource_warning(popen: Popen):
+def _suppress_resource_warning(popen: subprocess.Popen) -> None:
     """Sets the returncode to avoid ResourceWarning when popen is garbage collected."""
     # only use for daemon processes.
     # See https://bugs.python.org/issue38890.
     popen.returncode = 0
 
 
-def _popen(cmd, **kwargs) -> Popen:
-    prefix = [sys.executable]
+def _win_detached_subprocess(args: Sequence[str], **kwargs) -> int:
+    assert os.name == "nt"
+
+    from subprocess import (  # type: ignore[attr-defined]
+        CREATE_NEW_PROCESS_GROUP,
+        CREATE_NO_WINDOW,
+        STARTF_USESHOWWINDOW,
+        STARTUPINFO,
+    )
+
+    # https://stackoverflow.com/a/7006424
+    # https://bugs.python.org/issue41619
+    creationflags = CREATE_NEW_PROCESS_GROUP | CREATE_NO_WINDOW
+
+    startupinfo = STARTUPINFO()
+    startupinfo.dwFlags |= STARTF_USESHOWWINDOW
+    popen = subprocess.Popen(
+        args,
+        close_fds=True,
+        shell=False,  # noqa: S603
+        startupinfo=startupinfo,
+        creationflags=creationflags,
+        **kwargs,
+    )
+    _suppress_resource_warning(popen)
+    return popen.pid
+
+
+def _get_dvc_args() -> List[str]:
+    args = [sys.executable]
     if not is_binary():
-        main_entrypoint = os.path.join(
-            os.path.abspath(os.path.dirname(__file__)), "__main__.py"
-        )
-        prefix += [main_entrypoint]
-    return Popen(prefix + cmd, close_fds=True, shell=False, **kwargs)  # nosec B603
+        root_dir = os.path.abspath(os.path.dirname(__file__))
+        main_entrypoint = os.path.join(root_dir, "__main__.py")
+        args.append(main_entrypoint)
+    return args
 
 
-def _spawn_windows(cmd, env):
-    if sys.platform == "win32":
-        from subprocess import (  # nosec B404
-            CREATE_NEW_PROCESS_GROUP,
-            CREATE_NO_WINDOW,
-            STARTF_USESHOWWINDOW,
-            STARTUPINFO,
-        )
-
-        # https://stackoverflow.com/a/7006424
-        # https://bugs.python.org/issue41619
-        creationflags = CREATE_NEW_PROCESS_GROUP | CREATE_NO_WINDOW
-
-        startupinfo = STARTUPINFO()
-        startupinfo.dwFlags |= STARTF_USESHOWWINDOW
-
-        popen = _popen(
-            cmd, env=env, creationflags=creationflags, startupinfo=startupinfo
-        )
-        _suppress_resource_warning(popen)
-
-
-def _spawn_posix(cmd, env):
-    from dvc.cli import main
-
-    # `fork` will copy buffers, so we need to flush them before forking.
-    # Otherwise, we will get duplicated outputs.
-    if sys.stdout and not sys.stdout.closed:
-        sys.stdout.flush()
-    if sys.stderr and not sys.stderr.closed:
-        sys.stderr.flush()
+def _fork_process() -> int:
+    assert os.name == "posix"
 
     # NOTE: using os._exit instead of sys.exit, because dvc built
     # with PyInstaller has trouble with SystemExit exception and throws
     # errors such as "[26338] Failed to execute script __main__"
     try:
-        # pylint: disable-next=no-member
         pid = os.fork()  # type: ignore[attr-defined]
         if pid > 0:
-            return
+            return pid
     except OSError:
         logger.exception("failed at first fork")
-        os._exit(1)  # pylint: disable=protected-access
+        os._exit(1)
 
-    os.setsid()  # type: ignore[attr-defined]  # pylint: disable=no-member
+    os.setsid()  # type: ignore[attr-defined]
 
     try:
-        # pylint: disable-next=no-member
         pid = os.fork()  # type: ignore[attr-defined]
         if pid > 0:
-            os._exit(0)  # pylint: disable=protected-access
+            os._exit(0)
     except OSError:
         logger.exception("failed at second fork")
-        os._exit(1)  # pylint: disable=protected-access
+        os._exit(1)
 
-    sys.stdin.close()
-    sys.stdout.close()
-    sys.stderr.close()
-    os.closerange(0, 3)
-
-    if platform.system() == "Darwin":
-        # workaround for MacOS bug
-        # https://github.com/iterative/dvc/issues/4294
-        _popen(cmd, env=env).communicate()
-    else:
-        os.environ.update(env)
-        main(cmd)
-
-    os._exit(0)  # pylint: disable=protected-access
+    # disconnect from the terminal
+    fd = os.open(os.devnull, os.O_RDWR)
+    for fd2 in range(3):
+        os.dup2(fd, fd2)
+    os.close(fd)
+    return pid
 
 
-def _spawn(cmd, env):
-    logger.debug("Trying to spawn '%s'", cmd)
+def _posix_detached_subprocess(args: Sequence[str], **kwargs) -> int:
+    # double fork and execute a subprocess so that there are no zombies
+    read_end, write_end = os.pipe()
+    pid = _fork_process()
+    if pid > 0:  # in parent
+        os.close(write_end)
+        pid_str = os.read(read_end, 32).decode("utf8")
+        os.close(read_end)
+        return int(pid_str)
+
+    proc = subprocess.Popen(
+        args,
+        shell=False,  # noqa: S603
+        close_fds=True,
+        **kwargs,
+    )
+    os.close(read_end)
+    os.write(write_end, str(proc.pid).encode("utf8"))
+    os.close(write_end)
+
+    exit_code = proc.wait()
+    os._exit(exit_code)
+
+
+def _detached_subprocess(args: Sequence[str], **kwargs) -> int:
+    """Run in a detached subprocess."""
+    kwargs.setdefault("stdin", subprocess.DEVNULL)
+    kwargs.setdefault("stdout", subprocess.DEVNULL)
+    kwargs.setdefault("stderr", subprocess.DEVNULL)
 
     if os.name == "nt":
-        _spawn_windows(cmd, env)
-    elif os.name == "posix":
-        _spawn_posix(cmd, env)
-    else:
-        raise NotImplementedError
-
-    logger.debug("Spawned '%s'", cmd)
+        return _win_detached_subprocess(args, **kwargs)
+    return _posix_detached_subprocess(args, **kwargs)
 
 
-def daemon(args):
+def _map_log_level_to_flag() -> Optional[str]:
+    flags = {logging.DEBUG: "-v", logging.TRACE: "-vv"}  # type: ignore[attr-defined]
+    return flags.get(logger.getEffectiveLevel())
+
+
+def daemon(args: List[str]) -> None:
     """Launch a `dvc daemon` command in a detached process.
 
     Args:
         args (list): list of arguments to append to `dvc daemon` command.
     """
-    daemonize(["daemon", "-q", *args])
+    if flag := _map_log_level_to_flag():
+        args = [*args, flag]
+    daemonize(["daemon", *args])
 
 
-def daemonize(cmd: List[str]):
+def _spawn(
+    args: List[str],
+    executable: Optional[Union[str, List[str]]] = None,
+    env: Optional[Mapping[str, str]] = None,
+    output_file: Optional[str] = None,
+) -> int:
+    file: "ContextManager[Any]" = nullcontext()
+    kwargs = {}
+    if output_file:
+        file = open(output_file, "ab")  # noqa: SIM115
+        kwargs = {"stdout": file, "stderr": file}
+
+    if executable is None:
+        executable = _get_dvc_args()
+    else:
+        executable = ensure_list(executable)
+
+    with file:
+        return _detached_subprocess(executable + args, env=env, **kwargs)
+
+
+def daemonize(args: List[str], executable: Union[None, str, List[str]] = None) -> None:
+    if os.name not in ("posix", "nt"):
+        return None
+
     if os.environ.get(DVC_DAEMON):
         logger.debug("skipping launching a new daemon.")
         return
 
     env = fix_env()
+    env[DVC_DAEMON] = "1"
     if not is_binary():
         file_path = os.path.abspath(inspect.stack()[0][1])
         env["PYTHONPATH"] = os.path.dirname(os.path.dirname(file_path))
-    env[DVC_DAEMON] = "1"
 
-    _spawn(cmd, env)
+    logger.debug("Trying to spawn %r", args)
+    pid = _spawn(args, executable, env, output_file=env.get(DVC_DAEMON_LOGFILE))
+    logger.debug("Spawned %r with pid %s", args, pid)

dvc/dagascii.py

@@ -1,6 +1,5 @@
 """Draws DAG in ASCII."""
 
-import logging
 import math
 import os
 
@@ -8,7 +7,9 @@ from grandalf.graphs import Edge, Graph, Vertex
 from grandalf.layouts import SugiyamaLayout
 from grandalf.routing import EdgeViewer, route_with_lines
 
-logger = logging.getLogger(__name__)
+from dvc.log import logger
+
+logger = logger.getChild(__name__)
 
 
 class VertexViewer:
@@ -22,17 +23,16 @@ class VertexViewer:
     HEIGHT = 3  # top and bottom box edges + text
 
     def __init__(self, name):
-        # pylint: disable=invalid-name
         self._h = self.HEIGHT  # top and bottom box edges + text
         self._w = len(name) + 2  # right and left bottom edges + text
 
     @property
-    def h(self):  # pylint: disable=invalid-name
+    def h(self):
         """Height of the box."""
         return self._h
 
     @property
-    def w(self):  # pylint: disable=invalid-name
+    def w(self):
         """Width of the box."""
         return self._w
 
@@ -90,7 +90,6 @@ class AsciiCanvas:
             y1 (int): y coordinate where the line should end.
             char (str): character to draw the line with.
         """
-        # pylint: disable=too-many-arguments, too-many-branches
         if x0 > x1:
             x1, x0 = x0, x1
             y1, y0 = y0, y1
@@ -209,12 +208,36 @@ def draw(vertices, edges):
     Args:
         vertices (list): list of graph vertices.
         edges (list): list of graph edges.
+
+    Returns:
+        str: ASCII representation
+
+    Example:
+        >>> from dvc.dagascii import draw
+        >>> vertices = [1, 2, 3, 4]
+        >>> edges = [(1, 2), (2, 3), (2, 4), (1, 4)]
+        >>> print(draw(vertices, edges))
+        +---+     +---+
+        | 3 |     | 4 |
+        +---+    *+---+
+          *    **   *
+          *  **     *
+          * *       *
+        +---+       *
+        | 2 |      *
+        +---+     *
+             *    *
+              *  *
+               **
+             +---+
+             | 1 |
+             +---+
     """
-    # pylint: disable=too-many-locals
+
     # NOTE: coordinates might me negative, so we need to shift
     # everything to the positive plane before we actually draw it.
-    Xs = []  # noqa: N806, pylint: disable=invalid-name
-    Ys = []  # noqa: N806, pylint: disable=invalid-name
+    Xs = []  # noqa: N806
+    Ys = []  # noqa: N806
 
     sug = _build_sugiyama_layout(vertices, edges)
 
@@ -226,7 +249,7 @@ def draw(vertices, edges):
         Ys.append(vertex.view.xy[1] + vertex.view.h)
 
     for edge in sug.g.sE:
-        for x, y in edge.view._pts:  # pylint: disable=protected-access
+        for x, y in edge.view._pts:
             Xs.append(x)
             Ys.append(y)
 
@@ -242,7 +265,6 @@ def draw(vertices, edges):
 
     # NOTE: first draw edges so that node boxes could overwrite them
     for edge in sug.g.sE:
-        # pylint: disable=protected-access
         assert len(edge.view._pts) > 1
         for index in range(1, len(edge.view._pts)):
             start = edge.view._pts[index - 1]

dvc/data_cloud.py

@@ -1,9 +1,9 @@
 """Manages dvc remotes that user can use with push/pull/status commands."""
 
-import logging
 from typing import TYPE_CHECKING, Iterable, Optional, Set, Tuple
 
 from dvc.config import NoRemoteError, RemoteConfigError
+from dvc.log import logger
 from dvc.utils.objects import cached_property
 from dvc_data.hashfile.db import get_index
 from dvc_data.hashfile.transfer import TransferResult
@@ -14,7 +14,7 @@ if TYPE_CHECKING:
     from dvc_data.hashfile.hash_info import HashInfo
     from dvc_data.hashfile.status import CompareStatusResult
 
-logger = logging.getLogger(__name__)
+logger = logger.getChild(__name__)
 
 
 class Remote:
@@ -35,11 +35,9 @@ class Remote:
 
         path = self.path
         if self.worktree:
-            path = self.fs.path.join(
-                path, ".dvc", CacheManager.FILES_DIR, DEFAULT_ALGORITHM
-            )
+            path = self.fs.join(path, ".dvc", CacheManager.FILES_DIR, DEFAULT_ALGORITHM)
         else:
-            path = self.fs.path.join(path, CacheManager.FILES_DIR, DEFAULT_ALGORITHM)
+            path = self.fs.join(path, CacheManager.FILES_DIR, DEFAULT_ALGORITHM)
         return get_odb(self.fs, path, hash_name=DEFAULT_ALGORITHM, **self.config)
 
     @cached_property
@@ -90,7 +88,7 @@ class DataCloud:
         if name:
             from dvc.fs import get_cloud_fs
 
-            cls, config, fs_path = get_cloud_fs(self.repo, name=name)
+            cls, config, fs_path = get_cloud_fs(self.repo.config, name=name)
 
             if config.get("worktree"):
                 version_aware = config.get("version_aware")
@@ -134,7 +132,7 @@ class DataCloud:
 
         remote = self.get_remote(name=name, command=command)
         if remote.fs.version_aware or remote.worktree:
-            raise NoRemoteError(
+            raise RemoteConfigError(
                 f"'{command}' is unsupported for cloud versioned remotes"
             )
         if hash_name in LEGACY_HASH_NAMES:
@@ -205,19 +203,26 @@ class DataCloud:
         jobs: Optional[int] = None,
         odb: "HashFileDB",
     ) -> "TransferResult":
+        from dvc.fs.callbacks import TqdmCallback
+
         if odb.hash_name == "md5-dos2unix":
             cache = self.repo.cache.legacy
         else:
             cache = self.repo.cache.local
-        return self.transfer(
-            cache,
-            odb,
-            objs,
-            jobs=jobs,
-            dest_index=get_index(odb),
-            cache_odb=cache,
-            validate_status=self._log_missing,
-        )
+        with TqdmCallback(
+            desc=f"Pushing to {odb.fs.unstrip_protocol(odb.path)}",
+            unit="file",
+        ) as cb:
+            return self.transfer(
+                cache,
+                odb,
+                objs,
+                jobs=jobs,
+                dest_index=get_index(odb),
+                cache_odb=cache,
+                validate_status=self._log_missing,
+                callback=cb,
+            )
 
     def pull(
         self,
@@ -259,20 +264,27 @@ class DataCloud:
         jobs: Optional[int] = None,
         odb: "HashFileDB",
     ) -> "TransferResult":
+        from dvc.fs.callbacks import TqdmCallback
+
         if odb.hash_name == "md5-dos2unix":
             cache = self.repo.cache.legacy
         else:
             cache = self.repo.cache.local
-        return self.transfer(
-            odb,
-            cache,
-            objs,
-            jobs=jobs,
-            src_index=get_index(odb),
-            cache_odb=cache,
-            verify=odb.verify,
-            validate_status=self._log_missing,
-        )
+        with TqdmCallback(
+            desc=f"Fetching from {odb.fs.unstrip_protocol(odb.path)}",
+            unit="file",
+        ) as cb:
+            return self.transfer(
+                odb,
+                cache,
+                objs,
+                jobs=jobs,
+                src_index=get_index(odb),
+                cache_odb=cache,
+                verify=odb.verify,
+                validate_status=self._log_missing,
+                callback=cb,
+            )
 
     def status(
         self,

dvc/database/__init__.py

@@ -0,0 +1,22 @@
+from typing import Any, ContextManager, Optional, Union
+
+from . import dbt_query, sqla
+from .dbt_models import get_model
+from .serializer import export
+
+Client = Union[sqla.SQLAlchemyClient, dbt_query.DbtClient]
+
+
+def get_client(
+    config,
+    project_dir: Optional[str] = None,
+    profile: Optional[str] = None,
+    target: Optional[str] = None,
+    **kwargs: Any,
+) -> "ContextManager[Client]":
+    if config:
+        return sqla.client(config, **kwargs)
+    return dbt_query.client(project_dir=project_dir, profile=profile, target=target)
+
+
+__all__ = ["export", "get_client", "get_model", "Client"]