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Reland "Set --git-dir for git commands that may be executed in bare gits."

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This reverts commit 1c4052d88a.

Reason for revert: Fixed by ensuring directory paths are absolute.

Original change's description:
> Revert "Set --git-dir for git commands that may be executed in bare gits."
>
> This reverts commit d9011c559b.
>
> Reason for revert: Breaks ChromeOS staging builders: b/296139378
>
> Original change's description:
> > Set --git-dir for git commands that may be executed in bare gits.
> >
> > Bug:b/294415576
> > Change-Id: I18ca8ebebf95e1c31e30aa1f5d62da3467df940f
> > Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4778199
> > Auto-Submit: Joanna Wang <jojwang@chromium.org>
> > Reviewed-by: Gavin Mak <gavinmak@google.com>
> > Commit-Queue: Joanna Wang <jojwang@chromium.org>
>
> Bug: b/294415576
> Change-Id: Ie16f16a405fbdea4d925e03a0cfd1ac0260bb2d8
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4784102
> Commit-Queue: Jack Neus <jackneus@google.com>
> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> Reviewed-by: Joanna Wang <jojwang@chromium.org>

Bug: b/294415576
Change-Id: I0e8b8c697db88d85836c013005fddafb25d46d8a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4784808
Auto-Submit: Joanna Wang <jojwang@chromium.org>
Reviewed-by: Emily Shaffer <emilyshaffer@google.com>
Commit-Queue: Joanna Wang <jojwang@chromium.org>
This commit is contained in:
Joanna Wang
2023-08-17 02:20:43 +00:00
committed by LUCI CQ
parent 2a951b8648
commit ea99f9a083
2 changed files with 78 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

71
git_cache.py
View File

@@ -234,6 +234,9 @@ class Mirror(object):
def RunGit(self, cmd, print_stdout=True, **kwargs):
"""Run git in a subprocess."""
cwd = kwargs.setdefault('cwd', self.mirror_path)
if "--git-dir" not in cmd:
cmd = ['--git-dir', os.path.abspath(cwd)] + cmd
kwargs.setdefault('print_stdout', False)
if print_stdout:
kwargs.setdefault('filter_fn', self.print)
@@ -243,13 +246,10 @@ class Mirror(object):
self.print('running "git %s" in "%s"' % (' '.join(cmd), cwd))
gclient_utils.CheckCallAndFilter([self.git_exe] + cmd, **kwargs)
def config(self, cwd=None, reset_fetch_config=False):
if cwd is None:
cwd = self.mirror_path
def config(self, reset_fetch_config=False):
if reset_fetch_config:
try:
self.RunGit(['config', '--unset-all', 'remote.origin.fetch'], cwd=cwd)
self.RunGit(['config', '--unset-all', 'remote.origin.fetch'])
except subprocess.CalledProcessError as e:
# If exit code was 5, it means we attempted to unset a config that
# didn't exist. Ignore it.
@@ -258,7 +258,7 @@ class Mirror(object):
# Don't run git-gc in a daemon. Bad things can happen if it gets killed.
try:
self.RunGit(['config', 'gc.autodetach', '0'], cwd=cwd)
self.RunGit(['config', 'gc.autodetach', '0'])
except subprocess.CalledProcessError:
# Hard error, need to clobber.
raise ClobberNeeded()
@@ -267,20 +267,23 @@ class Mirror(object):
# repositories, and there's no way to track progress and make sure it's
# not stuck.
if self.supported_project():
self.RunGit(['config', 'gc.autopacklimit', '0'], cwd=cwd)
self.RunGit(['config', 'gc.autopacklimit', '0'])
# Allocate more RAM for cache-ing delta chains, for better performance
# of "Resolving deltas".
self.RunGit(['config', 'core.deltaBaseCacheLimit',
gclient_utils.DefaultDeltaBaseCacheLimit()], cwd=cwd)
self.RunGit([
'config', 'core.deltaBaseCacheLimit',
gclient_utils.DefaultDeltaBaseCacheLimit()
])
self.RunGit(['config', 'remote.origin.url', self.url], cwd=cwd)
self.RunGit(['config', '--replace-all', 'remote.origin.fetch',
'+refs/heads/*:refs/heads/*', r'\+refs/heads/\*:.*'], cwd=cwd)
self.RunGit(['config', 'remote.origin.url', self.url])
self.RunGit([
'config', '--replace-all', 'remote.origin.fetch',
'+refs/heads/*:refs/heads/*', r'\+refs/heads/\*:.*'
])
for spec, value_regex in self.fetch_specs:
self.RunGit(
['config', '--replace-all', 'remote.origin.fetch', spec, value_regex],
cwd=cwd)
['config', '--replace-all', 'remote.origin.fetch', spec, value_regex])
def bootstrap_repo(self, directory):
"""Bootstrap the repo from Google Storage if possible.
@@ -444,18 +447,18 @@ class Mirror(object):
# 1. No previous cache.
# 2. Project doesn't have a bootstrap folder.
# Start with a bare git dir.
self.RunGit(['init', '--bare'], cwd=self.mirror_path)
self.RunGit(['init', '--bare'])
# Set appropriate symbolic-ref
remote_info = exponential_backoff_retry(
lambda: subprocess.check_output(
[self.git_exe, 'remote', 'show', self.url],
cwd=self.mirror_path).decode('utf-8', 'ignore').strip()
)
remote_info = exponential_backoff_retry(lambda: subprocess.check_output(
[
self.git_exe, '--git-dir',
os.path.abspath(self.mirror_path), 'remote', 'show', self.url
],
cwd=self.mirror_path).decode('utf-8', 'ignore').strip())
default_branch_regexp = re.compile(r'HEAD branch: (.*)$')
m = default_branch_regexp.search(remote_info, re.MULTILINE)
if m:
self.RunGit(['symbolic-ref', 'HEAD', 'refs/heads/' + m.groups()[0]],
cwd=self.mirror_path)
self.RunGit(['symbolic-ref', 'HEAD', 'refs/heads/' + m.groups()[0]])
else:
# Bootstrap failed, previous cache exists; warn and continue.
logging.warning(
@@ -464,13 +467,12 @@ class Mirror(object):
len(pack_files))
def _fetch(self,
rundir,
verbose,
depth,
no_fetch_tags,
reset_fetch_config,
prune=True):
self.config(rundir, reset_fetch_config)
self.config(reset_fetch_config)
fetch_cmd = ['fetch']
if verbose:
@@ -483,14 +485,19 @@ class Mirror(object):
fetch_cmd.append('--prune')
fetch_cmd.append('origin')
fetch_specs = subprocess.check_output(
[self.git_exe, 'config', '--get-all', 'remote.origin.fetch'],
cwd=rundir).decode('utf-8', 'ignore').strip().splitlines()
fetch_specs = subprocess.check_output([
self.git_exe, '--git-dir',
os.path.abspath(self.mirror_path), 'config', '--get-all',
'remote.origin.fetch'
],
cwd=self.mirror_path).decode(
'utf-8',
'ignore').strip().splitlines()
for spec in fetch_specs:
try:
self.print('Fetching %s' % spec)
with self.print_duration_of('fetch %s' % spec):
self.RunGit(fetch_cmd + [spec], cwd=rundir, retry=True)
self.RunGit(fetch_cmd + [spec], retry=True)
except subprocess.CalledProcessError:
if spec == '+refs/heads/*:refs/heads/*':
raise ClobberNeeded() # Corrupted cache.
@@ -499,7 +506,7 @@ class Mirror(object):
self.print('Fetching %s' % commit)
try:
with self.print_duration_of('fetch %s' % commit):
self.RunGit(['fetch', 'origin', commit], cwd=rundir, retry=True)
self.RunGit(['fetch', 'origin', commit], retry=True)
except subprocess.CalledProcessError:
logging.warning('Fetch of %s failed' % commit)
@@ -519,8 +526,7 @@ class Mirror(object):
with lockfile.lock(self.mirror_path, lock_timeout):
try:
self._ensure_bootstrapped(depth, bootstrap, reset_fetch_config)
self._fetch(self.mirror_path, verbose, depth, no_fetch_tags,
reset_fetch_config)
self._fetch(verbose, depth, no_fetch_tags, reset_fetch_config)
except ClobberNeeded:
# This is a major failure, we need to clean and force a bootstrap.
gclient_utils.rmtree(self.mirror_path)
@@ -529,8 +535,7 @@ class Mirror(object):
bootstrap,
reset_fetch_config,
force=True)
self._fetch(self.mirror_path, verbose, depth, no_fetch_tags,
reset_fetch_config)
self._fetch(verbose, depth, no_fetch_tags, reset_fetch_config)
def update_bootstrap(self, prune=False, gc_aggressive=False):
# NOTE: There have been cases where repos were being recursively uploaded