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project: abort a bit earlier before migrating .git/

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Verify all the .git/ paths will be handled by the migration logic before
starting the migration.  This way we still abort & log an error, but the
user gets to see it before we put the tree into a state that they have to
manually recover.  Also add a few more known-safe-to-clobber paths.

Bug: https://crbug.com/gerrit/15273
Change-Id: If49d69b341bc960ddcafa30da333fb5ec7145b51
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/327557
Reviewed-by: Colin Cross <ccross@android.com>
Tested-by: Mike Frysinger <vapier@google.com>
This commit is contained in:
Mike Frysinger
2022-01-06 05:42:24 -05:00
parent 71e48b7672
commit 89ed8acdbe
2 changed files with 53 additions and 13 deletions
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28
tests/test_project.py
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@@ -347,6 +347,10 @@ class MigrateWorkTreeTests(unittest.TestCase):
}
_FILES = {
'COMMIT_EDITMSG', 'FETCH_HEAD', 'HEAD', 'index', 'ORIG_HEAD',
'unknown-file-should-be-migrated',
}
_CLEAN_FILES = {
'a-vim-temp-file~', '#an-emacs-temp-file#',
}
@classmethod
@@ -365,10 +369,9 @@ class MigrateWorkTreeTests(unittest.TestCase):
dotgit.mkdir(parents=True)
for name in cls._SYMLINKS:
(dotgit / name).symlink_to(f'../../../.repo/projects/src/test.git/{name}')
for name in cls._FILES:
for name in cls._FILES | cls._CLEAN_FILES:
(dotgit / name).write_text(name)
subprocess.run(['tree', '-a', str(dotgit)])
yield tempdir
def test_standard(self):
@@ -385,3 +388,24 @@ class MigrateWorkTreeTests(unittest.TestCase):
gitdir = tempdir / '.repo/projects/src/test.git'
for name in self._FILES:
self.assertEqual(name, (gitdir / name).read_text())
# Make sure files were removed.
for name in self._CLEAN_FILES:
self.assertFalse((gitdir / name).exists())
def test_unknown(self):
"""A checkout with unknown files should abort."""
with self._simple_layout() as tempdir:
dotgit = tempdir / 'src/test/.git'
(tempdir / '.repo/projects/src/test.git/random-file').write_text('one')
(dotgit / 'random-file').write_text('two')
with self.assertRaises(error.GitError):
project.Project._MigrateOldWorkTreeGitDir(str(dotgit))
# Make sure no content was actually changed.
self.assertTrue(dotgit.is_dir())
for name in self._FILES:
self.assertTrue((dotgit / name).is_file())
for name in self._CLEAN_FILES:
self.assertTrue((dotgit / name).is_file())
for name in self._SYMLINKS:
self.assertTrue((dotgit / name).is_symlink())