Files
dvc/tests/func/test_gc.py
T
7275843c08 remote: use .dir checksum existence to infer file contents existence (#3632)
* repo: separate dir cache and file cache in memory

- `used_cache()`/`get_used_cache()` in repo/stage/output now return
  tuples of (dir_cache, file_cache) instead of one flat/merged cache

* update tests for new get_used_cache behavior

* remote: if .dir checksum exists on remote, assume contents also exists

- affects all commands which use `cache_exists()` (remote status)

* push: only upload .dir file after full file contents has been uploaded

* gc: always remove .dir checksums first

* functional tests for push/gc

* repo: support nesting dir caches in NamedCache

* remote: NamedCache updates

* Fix tests

* Fix deepsource warnings

* tests: use pytest mocker fixture

* Update dvc/cache.py

Co-Authored-By: Saugat Pachhai <[email protected]>

Co-authored-by: Ruslan Kuprieiev <[email protected]>
Co-authored-by: Saugat Pachhai <[email protected]>
2020-04-14 23:07:58 +03:00

335 lines
9.9 KiB
Python

import logging
import os
import configobj
import pytest
from git import Repo
from dvc.compat import fspath
from dvc.exceptions import CollectCacheError
from dvc.main import main
from dvc.repo import Repo as DvcRepo
from dvc.remote.local import RemoteLOCAL
from dvc.utils.fs import remove
from tests.basic_env import TestDir, TestDvcGit
class TestGC(TestDvcGit):
def setUp(self):
super().setUp()
self.dvc.add(self.FOO)
self.dvc.add(self.DATA_DIR)
self.good_cache = [
self.dvc.cache.local.get(md5) for md5 in self.dvc.cache.local.all()
]
self.bad_cache = []
for i in ["123", "234", "345"]:
path = os.path.join(self.dvc.cache.local.cache_dir, i[0:2], i[2:])
self.create(path, i)
self.bad_cache.append(path)
def test_api(self):
self.dvc.gc(workspace=True)
self._test_gc()
def test_cli(self):
ret = main(["gc", "-wf"])
self.assertEqual(ret, 0)
self._test_gc()
def _test_gc(self):
self.assertTrue(os.path.isdir(self.dvc.cache.local.cache_dir))
for c in self.bad_cache:
self.assertFalse(os.path.exists(c))
for c in self.good_cache:
self.assertTrue(os.path.exists(c))
class TestGCBranchesTags(TestDvcGit):
def _check_cache(self, num):
total = 0
for root, dirs, files in os.walk(os.path.join(".dvc", "cache")):
total += len(files)
self.assertEqual(total, num)
def test(self):
fname = "file"
with open(fname, "w+") as fobj:
fobj.write("v1.0")
stages = self.dvc.add(fname)
self.assertEqual(len(stages), 1)
self.dvc.scm.add([".gitignore", stages[0].relpath])
self.dvc.scm.commit("v1.0")
self.dvc.scm.tag("v1.0")
self.dvc.scm.checkout("test", create_new=True)
self.dvc.remove(stages[0].relpath, outs_only=True)
with open(fname, "w+") as fobj:
fobj.write("test")
stages = self.dvc.add(fname)
self.assertEqual(len(stages), 1)
self.dvc.scm.add([".gitignore", stages[0].relpath])
self.dvc.scm.commit("test")
self.dvc.scm.checkout("master")
self.dvc.remove(stages[0].relpath, outs_only=True)
with open(fname, "w+") as fobj:
fobj.write("trash")
stages = self.dvc.add(fname)
self.assertEqual(len(stages), 1)
self.dvc.scm.add([".gitignore", stages[0].relpath])
self.dvc.scm.commit("trash")
self.dvc.remove(stages[0].relpath, outs_only=True)
with open(fname, "w+") as fobj:
fobj.write("master")
stages = self.dvc.add(fname)
self.assertEqual(len(stages), 1)
self.dvc.scm.add([".gitignore", stages[0].relpath])
self.dvc.scm.commit("master")
self._check_cache(4)
self.dvc.gc(all_tags=True, all_branches=True)
self._check_cache(3)
self.dvc.gc(all_tags=False, all_branches=True)
self._check_cache(2)
self.dvc.gc(all_tags=True, all_branches=False)
self._check_cache(1)
class TestGCMultipleDvcRepos(TestDvcGit):
def _check_cache(self, num):
total = 0
for root, dirs, files in os.walk(os.path.join(".dvc", "cache")):
total += len(files)
self.assertEqual(total, num)
def setUp(self):
super().setUp()
self.additional_path = TestDir.mkdtemp()
self.additional_git = Repo.init(self.additional_path)
self.additional_dvc = DvcRepo.init(self.additional_path)
cache_path = os.path.join(self._root_dir, ".dvc", "cache")
config_path = os.path.join(
self.additional_path, ".dvc", "config.local"
)
cfg = configobj.ConfigObj()
cfg.filename = config_path
cfg["cache"] = {"dir": cache_path}
cfg.write()
self.additional_dvc = DvcRepo(self.additional_path)
def test(self):
# ADD FILE ONLY IN MAIN PROJECT
fname = "only_in_first"
with open(fname, "w+") as fobj:
fobj.write("only in main repo")
stages = self.dvc.add(fname)
self.assertEqual(len(stages), 1)
# ADD FILE IN MAIN PROJECT THAT IS ALSO IN SECOND PROJECT
fname = "in_both"
with open(fname, "w+") as fobj:
fobj.write("in both repos")
stages = self.dvc.add(fname)
self.assertEqual(len(stages), 1)
cwd = os.getcwd()
os.chdir(self.additional_path)
# ADD FILE ONLY IN SECOND PROJECT
fname = os.path.join(self.additional_path, "only_in_second")
with open(fname, "w+") as fobj:
fobj.write("only in additional repo")
stages = self.additional_dvc.add(fname)
self.assertEqual(len(stages), 1)
# ADD FILE IN SECOND PROJECT THAT IS ALSO IN MAIN PROJECT
fname = os.path.join(self.additional_path, "in_both")
with open(fname, "w+") as fobj:
fobj.write("in both repos")
stages = self.additional_dvc.add(fname)
self.assertEqual(len(stages), 1)
os.chdir(cwd)
self._check_cache(3)
self.dvc.gc(repos=[self.additional_path], workspace=True)
self._check_cache(3)
self.dvc.gc(workspace=True)
self._check_cache(2)
def test_all_commits(tmp_dir, scm, dvc):
tmp_dir.dvc_gen("testfile", "uncommitted")
tmp_dir.dvc_gen("testfile", "committed", commit="committed")
tmp_dir.dvc_gen("testfile", "modified", commit="modified")
tmp_dir.dvc_gen("testfile", "workspace")
n = _count_files(dvc.cache.local.cache_dir)
dvc.gc(all_commits=True)
# Only one uncommitted file should go away
assert _count_files(dvc.cache.local.cache_dir) == n - 1
def test_gc_no_dir_cache(tmp_dir, dvc):
tmp_dir.dvc_gen({"foo": "foo", "bar": "bar"})
(dir_stage,) = tmp_dir.dvc_gen({"dir": {"x": "x", "subdir": {"y": "y"}}})
remove(dir_stage.outs[0].cache_path)
with pytest.raises(CollectCacheError):
dvc.gc(workspace=True)
assert _count_files(dvc.cache.local.cache_dir) == 4
dvc.gc(force=True, workspace=True)
assert _count_files(dvc.cache.local.cache_dir) == 2
def _count_files(path):
return sum(len(files) for _, _, files in os.walk(path))
def test_gc_no_unpacked_dir(tmp_dir, dvc):
dir_stages = tmp_dir.dvc_gen({"dir": {"file": "text"}})
dvc.status()
os.remove("dir.dvc")
unpackeddir = (
dir_stages[0].outs[0].cache_path + RemoteLOCAL.UNPACKED_DIR_SUFFIX
)
assert os.path.exists(unpackeddir)
dvc.gc(force=True, workspace=True)
assert not os.path.exists(unpackeddir)
def test_gc_without_workspace_raises_error(tmp_dir, dvc):
dvc.gc(force=True, workspace=True) # works without error
from dvc.exceptions import InvalidArgumentError
with pytest.raises(InvalidArgumentError):
dvc.gc(force=True)
with pytest.raises(InvalidArgumentError):
dvc.gc(force=True, workspace=False)
def test_gc_cloud_with_or_without_specifier(tmp_dir, erepo_dir):
dvc = erepo_dir.dvc
with erepo_dir.chdir():
from dvc.exceptions import InvalidArgumentError
with pytest.raises(InvalidArgumentError):
dvc.gc(force=True, cloud=True)
dvc.gc(cloud=True, all_tags=True)
dvc.gc(cloud=True, all_commits=True)
dvc.gc(cloud=True, all_branches=True)
dvc.gc(cloud=True, all_commits=False, all_branches=True, all_tags=True)
def test_gc_without_workspace_on_tags_branches_commits(tmp_dir, dvc):
dvc.gc(force=True, all_tags=True)
dvc.gc(force=True, all_commits=True)
dvc.gc(force=False, all_branches=True)
# even if workspace is disabled, and others are enabled, assume as if
# workspace is enabled.
dvc.gc(force=False, all_branches=True, all_commits=False, workspace=False)
def test_gc_without_workspace(tmp_dir, dvc, caplog):
with caplog.at_level(logging.WARNING, logger="dvc"):
assert main(["gc", "-vf"]) == 255
assert (
"Either of `-w|--workspace`, `-a|--all-branches`, `-T|--all-tags` "
"or `--all-commits` needs to be set."
) in caplog.text
def test_gc_cloud_without_any_specifier(tmp_dir, dvc, caplog):
with caplog.at_level(logging.WARNING, logger="dvc"):
assert main(["gc", "-cvf"]) == 255
assert (
"Either of `-w|--workspace`, `-a|--all-branches`, `-T|--all-tags` "
"or `--all-commits` needs to be set."
) in caplog.text
def test_gc_with_possible_args_positive(tmp_dir, dvc):
for flag in [
"-w",
"-a",
"-T",
"--all-commits",
"-aT",
"-wa",
"-waT",
]:
assert main(["gc", "-vf", flag]) == 0
def test_gc_cloud_positive(tmp_dir, dvc, tmp_path_factory):
with dvc.config.edit() as conf:
storage = fspath(tmp_path_factory.mktemp("test_remote_base"))
conf["remote"]["local_remote"] = {"url": storage}
conf["core"]["remote"] = "local_remote"
dvc.push()
for flag in ["-cw", "-ca", "-cT", "-caT", "-cwT"]:
assert main(["gc", "-vf", flag]) == 0
def test_gc_cloud_remove_order(tmp_dir, scm, dvc, tmp_path_factory, mocker):
storage = fspath(tmp_path_factory.mktemp("test_remote_base"))
dvc.config["remote"]["local_remote"] = {"url": storage}
dvc.config["core"]["remote"] = "local_remote"
(standalone, dir1, dir2) = tmp_dir.dvc_gen(
{
"file1": "standalone",
"dir1": {"file2": "file2"},
"dir2": {"file3": "file3", "file4": "file4"},
}
)
dvc.push()
dvc.remove(standalone.relpath)
dvc.remove(dir1.relpath)
dvc.remove(dir2.relpath)
dvc.gc(workspace=True)
mocked_remove = mocker.patch.object(RemoteLOCAL, "remove", autospec=True)
dvc.gc(workspace=True, cloud=True)
assert len(mocked_remove.mock_calls) == 8
# dir (and unpacked dir) should be first 4 checksums removed from
# the remote
for args in mocked_remove.call_args_list[:4]:
checksum = str(args[0][1])
assert checksum.endswith(".dir") or checksum.endswith(".dir.unpacked")