Git supports both repository versions 0 and 1. These formats are
identical except for the presence of extensions. When using an
extension, such as for a different hash algorithm, a check for only
version 0 causes the check to fail. Instead, call
verify_repository_format to verify that we have an appropriate version
and no unknown extensions.
Signed-off-by: brian m. carlson <sandals@xxxxxxxxxxxxxxxxxxxx>
---
worktree.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/worktree.c b/worktree.c
index 5b4793caa3..d1d23aadb4 100644
--- a/worktree.c
+++ b/worktree.c
@@ -449,7 +449,7 @@ const struct worktree *find_shared_symref(const char *symref,
int submodule_uses_worktrees(const char *path)
{
char *submodule_gitdir;
- struct strbuf sb = STRBUF_INIT;
+ struct strbuf sb = STRBUF_INIT, err = STRBUF_INIT;
DIR *dir;
struct dirent *d;
int ret = 0;
@@ -463,18 +463,16 @@ int submodule_uses_worktrees(const char *path)
get_common_dir_noenv(&sb, submodule_gitdir);
free(submodule_gitdir);
- /*
- * The check below is only known to be good for repository format
- * version 0 at the time of writing this code.
- */
strbuf_addstr(&sb, "/config");
read_repository_format(&format, sb.buf);
- if (format.version != 0) {
+ if (verify_repository_format(&format, &err)) {
+ strbuf_release(&err);
strbuf_release(&sb);
clear_repository_format(&format);
return 1;
}
clear_repository_format(&format);
+ strbuf_release(&err);
/* Replace config by worktrees. */
strbuf_setlen(&sb, sb.len - strlen("config"));
