Empty regex pattern should always match. But the exact behavior of
regexec() may vary. Because it always matches anyway, we can just
return 'matched' without calling regex machinery.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
On top of nd/oneline-sha1-name-from-specific-ref
sha1_name.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/sha1_name.c b/sha1_name.c
index 1ba4bc3..c5c59ce 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -599,6 +599,13 @@ static int peel_onion(const char *name, int len, unsigned char *sha1)
int ret;
struct commit_list *list = NULL;
+ /*
+ * $commit^{/}. Some regex implementation may reject.
+ * We don't need regex anyway. '' pattern always matches.
+ */
+ if (sp[1] == '}')
+ return 0;
+
prefix = xstrndup(sp + 1, name + len - 1 - (sp + 1));
commit_list_insert((struct commit *)o, &list);
ret = get_sha1_oneline(prefix, sha1, list);
--
1.7.3.3.476.g10a82
--
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