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-rw-r--r--remote.c32
1 files changed, 29 insertions, 3 deletions
diff --git a/remote.c b/remote.c
index 06ad15627..2d9af4023 100644
--- a/remote.c
+++ b/remote.c
@@ -812,6 +812,26 @@ static struct ref *make_linked_ref(const char *name, struct ref ***tail)
return ret;
}
+static char *guess_ref(const char *name, struct ref *peer)
+{
+ struct strbuf buf = STRBUF_INIT;
+ unsigned char sha1[20];
+
+ const char *r = resolve_ref(peer->name, sha1, 1, NULL);
+ if (!r)
+ return NULL;
+
+ if (!prefixcmp(r, "refs/heads/"))
+ strbuf_addstr(&buf, "refs/heads/");
+ else if (!prefixcmp(r, "refs/tags/"))
+ strbuf_addstr(&buf, "refs/tags/");
+ else
+ return NULL;
+
+ strbuf_addstr(&buf, name);
+ return strbuf_detach(&buf, NULL);
+}
+
static int match_explicit(struct ref *src, struct ref *dst,
struct ref ***dst_tail,
struct refspec *rs,
@@ -820,6 +840,7 @@ static int match_explicit(struct ref *src, struct ref *dst,
struct ref *matched_src, *matched_dst;
const char *dst_value = rs->dst;
+ char *dst_guess;
if (rs->pattern)
return errs;
@@ -866,10 +887,15 @@ static int match_explicit(struct ref *src, struct ref *dst,
case 0:
if (!memcmp(dst_value, "refs/", 5))
matched_dst = make_linked_ref(dst_value, dst_tail);
+ else if((dst_guess = guess_ref(dst_value, matched_src)))
+ matched_dst = make_linked_ref(dst_guess, dst_tail);
else
- error("dst refspec %s does not match any "
- "existing ref on the remote and does "
- "not start with refs/.", dst_value);
+ error("unable to push to unqualified destination: %s\n"
+ "The destination refspec neither matches an "
+ "existing ref on the remote nor\n"
+ "begins with refs/, and we are unable to "
+ "guess a prefix based on the source ref.",
+ dst_value);
break;
default:
matched_dst = NULL;