describe: Refresh the index when run with --dirty

When running git describe --dirty the index should be refreshed.  Previously
the cached index would cause describe to think that the index was dirty when,
in reality, it was just stale.

The issue was exposed by python setuptools which hardlinks files into another
directory when building a distribution.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Allan Caffee 2011-07-31 21:52:41 -04:00 коммит произвёл Junio C Hamano
Родитель 4e2e6ce450
Коммит bb571486ae
1 изменённых файлов: 15 добавлений и 2 удалений

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@ -462,8 +462,21 @@ int cmd_describe(int argc, const char **argv, const char *prefix)
die(_("No names found, cannot describe anything."));
if (argc == 0) {
if (dirty && !cmd_diff_index(ARRAY_SIZE(diff_index_args) - 1, diff_index_args, prefix))
dirty = NULL;
if (dirty) {
static struct lock_file index_lock;
int fd;
read_cache_preload(NULL);
refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED,
NULL, NULL, NULL);
fd = hold_locked_index(&index_lock, 0);
if (0 <= fd)
update_index_if_able(&the_index, &index_lock);
if (!cmd_diff_index(ARRAY_SIZE(diff_index_args) - 1,
diff_index_args, prefix))
dirty = NULL;
}
describe("HEAD", 1);
} else if (dirty) {
die(_("--dirty is incompatible with committishes"));