Because HEAD is part of repository signature, even if it's per-worktree
file, we can't simply delete it. So main worktree is considered gone if
.git/HEAD contains all-zero SHA-1.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
worktree.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/worktree.c b/worktree.c
index e878f49..80c525b 100644
--- a/worktree.c
+++ b/worktree.c
@@ -49,6 +49,8 @@ static int parse_ref(char *path_to_ref, struct strbuf *ref, int *is_detached)
if (!starts_with(ref->buf, "ref:")) {
if (is_detached)
*is_detached = 1;
+ if (starts_with(ref->buf, sha1_to_hex(null_sha1)))
+ return -1;
} else {
strbuf_remove(ref, 0, strlen("ref:"));
strbuf_trim(ref);
--
2.7.0.377.g4cd97dd
--
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