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make sure to not discard changes even if submodule.recurse=1

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This commit is contained in:
Anthony Sottile 2021-10-01 18:45:36 -04:00
parent e0e3fabfdb
commit e9ed248a15
2 changed files with 46 additions and 7 deletions
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10
pre_commit/staged_files_only.py
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@ -13,6 +13,12 @@ from pre_commit.xargs import xargs
logger = logging.getLogger('pre_commit')
# without forcing submodule.recurse=0, changes in nested submodules will be
# discarded if `submodule.recurse=1` is configured
# we choose this instead of `--no-recurse-submodules` because it works on
# versions of git before that option was added to `git checkout`
_CHECKOUT_CMD = ('git', '-c', 'submodule.recurse=0', 'checkout', '--', '.')
def _git_apply(patch: str) -> None:
args = ('apply', '--whitespace=nowarn', patch)
@ -58,7 +64,7 @@ def _unstaged_changes_cleared(patch_dir: str) -> Generator[None, None, None]:
# prevent recursive post-checkout hooks (#1418)
no_checkout_env = dict(os.environ, _PRE_COMMIT_SKIP_POST_CHECKOUT='1')
cmd_output_b('git', 'checkout', '--', '.', env=no_checkout_env)
cmd_output_b(*_CHECKOUT_CMD, env=no_checkout_env)
try:
yield
@ -74,7 +80,7 @@ def _unstaged_changes_cleared(patch_dir: str) -> Generator[None, None, None]:
# We failed to apply the patch, presumably due to fixes made
# by hooks.
# Roll back the changes made by hooks.
cmd_output_b('git', 'checkout', '--', '.', env=no_checkout_env)
cmd_output_b(*_CHECKOUT_CMD, env=no_checkout_env)
_git_apply(patch_filename)
logger.info(f'Restored changes from {patch_filename}.')