Function TestPackWriterExistingReadOnly

storage/filesystem/dotgit/writers_test.go:184–240

(t *testing.T)

}

func TestPackWriterExistingReadOnly(t *testing.T) {
	t.Parallel()

	for _, tc := range []struct {
		name string
		fs   billy.Filesystem
	}{
		{"BoundOS", osfs.New(t.TempDir(), osfs.WithBoundOS())},
		{"ChrootOS", osfs.New(t.TempDir(), osfs.WithChrootOS())},
	} {
		t.Run(tc.name, func(t *testing.T) {
			t.Parallel()

			f := fixtures.Basic().One()

			dot := New(tc.fs)
			require.NoError(t, dot.Initialize())

			pfPath := filepath.Join("objects", "pack", fmt.Sprintf("pack-%s.pack", f.PackfileHash))
			idxPath := filepath.Join("objects", "pack", fmt.Sprintf("pack-%s.idx", f.PackfileHash))

			writePack := func() {
				t.Helper()
				w, err := dot.NewObjectPack()
				require.NoError(t, err)

				_, err = io.Copy(w, f.Packfile())
				require.NoError(t, err)
				require.NoError(t, w.Close())
			}

			writePack()

			ro, err := isReadOnly(tc.fs, pfPath)
			require.NoError(t, err)
			assert.True(t, ro, "file %q is not read-only", pfPath)

			ro, err = isReadOnly(tc.fs, idxPath)
			require.NoError(t, err)
			assert.True(t, ro, "file %q is not read-only", idxPath)

			writePack()

			// Remove .idx only, keep .pack — the next write must
			// recreate .idx without touching the existing .pack.
			require.NoError(t, tc.fs.Remove(idxPath))
			writePack()

			_, err = tc.fs.Lstat(idxPath)
			require.NoError(t, err, ".idx should have been recreated")

			ro, err = isReadOnly(tc.fs, idxPath)
			require.NoError(t, err)
			assert.True(t, ro, "recreated %q is not read-only", idxPath)
		})
	}
}