Revert "Reland "Refactor git functionality out of Change and _DiffCache""

This reverts commit 4d2864f3a1.

Reason for revert: This still doesn't scale well with large commit:
https://logs.chromium.org/logs/chromium/buildbucket/cr-buildbucket/8756578662173359185/+/u/presubmit/stdout?format=raw

This is now a different instruction called repeatedly needlessly:
```
git -c core.quotePath=false diff -p --no-color --no-prefix --no-ext-diff f0b151b0e519ceb3efae2ad8951d8a9ce86e4fbd...HEAD --no-renames;  cwd=D:\b\s\w\ir\cache\builder\win_presubmit\src
```
called for each affected files.

We probably want to cache the output for this too?

Original change's description:
> Reland "Refactor git functionality out of Change and _DiffCache"
>
> This is a reland of commit dd1a596c3e
>
> It is not a pure reland and adds support for caching submodules.
>
> Original change's description:
> > Refactor git functionality out of Change and _DiffCache
> >
> > A followup change will add support for change diff provided as user
> > input through stdin/file.
> >
> > Bug: b/323243527
> > Change-Id: I8d3420370e134859c61e35e23d76803227e4a506
> > Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/5254364
> > Reviewed-by: Joanna Wang <jojwang@chromium.org>
> > Commit-Queue: Gavin Mak <gavinmak@google.com>
> > Reviewed-by: Josip Sokcevic <sokcevic@chromium.org>
>
> Bug: b/323243527
> Change-Id: I74bbb179d4cbda7431101a2d707131fab2093029
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/5280620
> Reviewed-by: Josip Sokcevic <sokcevic@chromium.org>
> Commit-Queue: Gavin Mak <gavinmak@google.com>

Bug: b/323243527, b/324293047
Change-Id: Iffde46facefa9d2e3a0d3a9ab5f8e753c53ea6d4
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/5272317
Auto-Submit: Arthur Sonzogni <arthursonzogni@google.com>
Reviewed-by: Gavin Mak <gavinmak@google.com>
Commit-Queue: Gavin Mak <gavinmak@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
changes/17/5272317/2
Arthur Sonzogni 1 year ago committed by LUCI CQ
parent 566c3772a0
commit aa475e6a12

@ -880,7 +880,7 @@ class InputApi(object):
def ListSubmodules(self):
"""Returns submodule paths for current change's repo."""
return self.change._repo_submodules()
return scm.GIT.ListSubmodules(self.change.RepositoryRoot())
@property
def tbr(self):
@ -912,6 +912,9 @@ class InputApi(object):
class _DiffCache(object):
"""Caches diffs retrieved from a particular SCM."""
def __init__(self, upstream=None):
"""Stores the upstream revision against which all diffs will be computed."""
self._upstream = upstream
def GetDiff(self, path, local_root):
"""Get the diff for a particular path."""
@ -924,11 +927,8 @@ class _DiffCache(object):
class _GitDiffCache(_DiffCache):
"""DiffCache implementation for git; gets all file diffs at once."""
def __init__(self, upstream):
"""Stores the upstream revision against which all diffs are computed."""
super(_GitDiffCache, self).__init__()
self._upstream = upstream
super(_GitDiffCache, self).__init__(upstream=upstream)
self._diffs_by_file = None
def GetDiff(self, path, local_root):
@ -1138,13 +1138,21 @@ class Change(object):
'^[ \t]*(?P<key>[A-Z][A-Z_0-9]*)[ \t]*=[ \t]*(?P<value>.*?)[ \t]*$')
scm = ''
def __init__(self, name, description, local_root, files, issue, patchset,
author):
def __init__(self,
name,
description,
local_root,
files,
issue,
patchset,
author,
upstream=None):
if files is None:
files = []
self._name = name
# Convert root into an absolute path.
self._local_root = os.path.abspath(local_root)
self._upstream = upstream
self.issue = issue
self.patchset = patchset
self.author_email = author
@ -1157,13 +1165,15 @@ class Change(object):
assert all((isinstance(f, (list, tuple)) and len(f) == 2)
for f in files), files
diff_cache = self._AFFECTED_FILES.DIFF_CACHE(self._upstream)
self._affected_files = [
self._AFFECTED_FILES(path, action.strip(), self._local_root,
self._diff_cache()) for action, path in files
diff_cache) for action, path in files
]
def _diff_cache(self):
return self._AFFECTED_FILES.DIFF_CACHE()
def UpstreamBranch(self):
"""Returns the upstream branch for the change."""
return self._upstream
def Name(self):
"""Returns the change name."""
@ -1300,22 +1310,29 @@ class Change(object):
Returns:
[AffectedFile(path, action), AffectedFile(path, action)]
"""
affected = list(filter(file_filter, self._affected_files))
submodule_list = scm.GIT.ListSubmodules(self.RepositoryRoot())
files = [
af for af in self._affected_files
if af.LocalPath() not in submodule_list
]
affected = list(filter(file_filter, files))
if include_deletes:
return affected
return list(filter(lambda x: x.Action() != 'D', affected))
def AffectedSubmodules(self):
"""Returns a list of AffectedFile instances for submodules in the change.
There is no SCM and no submodules, so return an empty list.
"""
return []
"""Returns a list of AffectedFile instances for submodules in the change."""
submodule_list = scm.GIT.ListSubmodules(self.RepositoryRoot())
return [
af for af in self._affected_files
if af.LocalPath() in submodule_list
]
def AffectedTestableFiles(self, include_deletes=None, **kwargs):
"""Return a list of the existing text files in a change."""
if include_deletes is not None:
warn('AffectedTestableFiles(include_deletes=%s)'
warn('AffectedTeestableFiles(include_deletes=%s)'
' is deprecated and ignored' % str(include_deletes),
category=DeprecationWarning,
stacklevel=2)
@ -1369,38 +1386,11 @@ class Change(object):
files = self.AffectedFiles(file_filter=owners_file_filter)
return {f.LocalPath(): f.OldContents() for f in files}
def _repo_submodules(self):
"""Returns submodule paths for current change's repo.
There is no SCM, so return an empty list.
"""
return []
class GitChange(Change):
_AFFECTED_FILES = GitAffectedFile
scm = 'git'
def __init__(self, *args, upstream, **kwargs):
self._upstream = upstream
super(GitChange, self).__init__(*args)
# List of submodule paths in the repo.
self._submodules = None
def _diff_cache(self):
return self._AFFECTED_FILES.DIFF_CACHE(self._upstream)
def _repo_submodules(self):
"""Returns submodule paths for current change's repo."""
if not self._submodules:
self._submodules = scm.GIT.ListSubmodules(self.RepositoryRoot())
return self._submodules
def UpstreamBranch(self):
"""Returns the upstream branch for the change."""
return self._upstream
def AllFiles(self, root=None):
"""List all files under source control in the repo."""
root = root or self.RepositoryRoot()
@ -1408,33 +1398,6 @@ class GitChange(Change):
['git', '-c', 'core.quotePath=false', 'ls-files', '--', '.'],
cwd=root).decode('utf-8', 'ignore').splitlines()
def AffectedFiles(self, include_deletes=True, file_filter=None):
"""Returns a list of AffectedFile instances for all files in the change.
Args:
include_deletes: If false, deleted files will be filtered out.
file_filter: An additional filter to apply.
Returns:
[AffectedFile(path, action), AffectedFile(path, action)]
"""
files = [
af for af in self._affected_files
if af.LocalPath() not in self._repo_submodules()
]
affected = list(filter(file_filter, files))
if include_deletes:
return affected
return list(filter(lambda x: x.Action() != 'D', affected))
def AffectedSubmodules(self):
"""Returns a list of AffectedFile instances for submodules in the change."""
return [
af for af in self._affected_files
if af.LocalPath() in self._repo_submodules()
]
def ListRelevantPresubmitFiles(files, root):
"""Finds all presubmit files that apply to a given set of source files.
@ -2017,13 +1980,15 @@ def _parse_change(parser, options):
ignore_submodules=False)
logging.info('Found %d file(s).', len(change_files))
change_args = [
options.name, options.description, options.root, change_files,
options.issue, options.patchset, options.author
]
if change_scm == 'git':
return GitChange(*change_args, upstream=options.upstream)
return Change(*change_args)
change_class = GitChange if change_scm == 'git' else Change
return change_class(options.name,
options.description,
options.root,
change_files,
options.issue,
options.patchset,
options.author,
upstream=options.upstream)
def _parse_gerrit_options(parser, options):

@ -385,7 +385,7 @@ class PresubmitUnittest(PresubmitTestsBase):
0,
0,
None,
upstream='upstream')
upstream=None)
self.assertIsNotNone(change.Name() == 'mychange')
self.assertIsNotNone(change.DescriptionText(
) == 'Hello there\nthis is a change\nand some more regular text')
@ -444,13 +444,8 @@ class PresubmitUnittest(PresubmitTestsBase):
def testInvalidChange(self):
with self.assertRaises(AssertionError):
presubmit.GitChange('mychange',
'description',
self.fake_root_dir, ['foo/blat.cc', 'bar'],
0,
0,
None,
upstream='upstream')
presubmit.GitChange('mychange', 'description', self.fake_root_dir,
['foo/blat.cc', 'bar'], 0, 0, None)
def testExecPresubmitScript(self):
description_lines = ('Hello there', 'this is a change', 'BUG=123')
@ -970,10 +965,14 @@ def CheckChangeOnCommit(input_api, output_api):
change = presubmit._parse_change(None, options)
self.assertEqual(presubmit.Change.return_value, change)
presubmit.Change.assert_called_once_with(
options.name, options.description, options.root,
[('M', 'random_file.txt')], options.issue, options.patchset,
options.author)
presubmit.Change.assert_called_once_with(options.name,
options.description,
options.root,
[('M', 'random_file.txt')],
options.issue,
options.patchset,
options.author,
upstream=options.upstream)
presubmit._parse_files.assert_called_once_with(options.files,
options.recursive)
@ -1186,14 +1185,9 @@ class InputApiUnittest(PresubmitTestsBase):
os.path.isfile.side_effect = lambda f: f in known_files
presubmit.scm.GIT.GenerateDiff.return_value = '\n'.join(diffs)
change = presubmit.GitChange('mychange',
'\n'.join(description_lines),
change = presubmit.GitChange('mychange', '\n'.join(description_lines),
self.fake_root_dir,
[[f[0], f[1]] for f in files],
0,
0,
None,
upstream='upstream')
[[f[0], f[1]] for f in files], 0, 0, None)
input_api = presubmit.InputApi(
change, os.path.join(self.fake_root_dir, 'foo', 'PRESUBMIT.py'),
False, None, False)
@ -1247,14 +1241,9 @@ class InputApiUnittest(PresubmitTestsBase):
known_files = [os.path.join(self.fake_root_dir, f) for _, f in files]
os.path.isfile.side_effect = lambda f: f in known_files
change = presubmit.GitChange('mychange',
'description\nlines\n',
change = presubmit.GitChange('mychange', 'description\nlines\n',
self.fake_root_dir,
[[f[0], f[1]] for f in files],
0,
0,
None,
upstream='upstream')
[[f[0], f[1]] for f in files], 0, 0, None)
input_api = presubmit.InputApi(
change, os.path.join(self.fake_root_dir, 'foo', 'PRESUBMIT.py'),
False, None, False)
@ -1382,14 +1371,8 @@ class InputApiUnittest(PresubmitTestsBase):
]
os.path.isfile.side_effect = lambda f: f in known_files
change = presubmit.GitChange('mychange',
'',
self.fake_root_dir,
files,
0,
0,
None,
upstream='upstream')
change = presubmit.GitChange('mychange', '', self.fake_root_dir, files,
0, 0, None)
input_api = presubmit.InputApi(
change, os.path.join(self.fake_root_dir, 'PRESUBMIT.py'), False,
None, False)
@ -1409,14 +1392,8 @@ class InputApiUnittest(PresubmitTestsBase):
]
os.path.isfile.side_effect = lambda f: f in known_files
change = presubmit.GitChange('mychange',
'',
self.fake_root_dir,
files,
0,
0,
None,
upstream='upstream')
change = presubmit.GitChange('mychange', '', self.fake_root_dir, files,
0, 0, None)
input_api = presubmit.InputApi(
change, os.path.join(self.fake_root_dir, 'PRESUBMIT.py'), False,
None, False)
@ -1706,41 +1683,22 @@ class AffectedFileUnittest(PresubmitTestsBase):
class ChangeUnittest(PresubmitTestsBase):
def testAffectedFiles(self):
@mock.patch('scm.GIT.ListSubmodules', return_value=['BB'])
def testAffectedFiles(self, mockListSubmodules):
change = presubmit.Change('', '', self.fake_root_dir, [('Y', 'AA'),
('A', 'BB')], 3,
5, '')
self.assertEqual(2, len(change.AffectedFiles()))
self.assertEqual(1, len(change.AffectedFiles()))
self.assertEqual('Y', change.AffectedFiles()[0].Action())
@mock.patch('scm.GIT.ListSubmodules', return_value=['BB'])
def testAffectedSubmodules(self, mockListSubmodules):
change = presubmit.GitChange('',
'',
self.fake_root_dir, [('Y', 'AA'),
('A', 'BB')],
3,
5,
'',
upstream='upstream')
change = presubmit.Change('', '', self.fake_root_dir, [('Y', 'AA'),
('A', 'BB')], 3,
5, '')
self.assertEqual(1, len(change.AffectedSubmodules()))
self.assertEqual('A', change.AffectedSubmodules()[0].Action())
@mock.patch('scm.GIT.ListSubmodules', return_value=['BB'])
def testAffectedSubmodulesCachesSubmodules(self, mockListSubmodules):
change = presubmit.GitChange('',
'',
self.fake_root_dir, [('Y', 'AA'),
('A', 'BB')],
3,
5,
'',
upstream='upstream')
change.AffectedSubmodules()
mockListSubmodules.assert_called_once()
change.AffectedSubmodules()
mockListSubmodules.assert_called_once()
def testSetDescriptionText(self):
change = presubmit.Change('', 'foo\nDRU=ro', self.fake_root_dir, [], 3,
5, '')

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