describe: prepend "tags/" when describing tags with embedded name

diff --git a/sha1_name.c b/sha1_name.c
index 862b6f1308e7031317ab6eb6d181652a6fc644ad..603e667faa6b935ed5c44fc7d67188088bdfaa84 100644 (file)
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -9,6 +9,7 @@
 #include "remote.h"
 #include "dir.h"
 #include "sha1-array.h"
+#include "packfile.h"
 
 static int get_oid_oneline(const char *, struct object_id *, struct commit_list *);
 
@@ -156,7 +157,7 @@ static void unique_in_pack(struct packed_git *p,
        num = p->num_objects;
        last = num;
        while (first < last) {
-               uint32_t mid = (first + last) / 2;
+               uint32_t mid = first + (last - first) / 2;
                const unsigned char *current;
                int cmp;
 
@@ -1330,7 +1331,10 @@ void strbuf_branchname(struct strbuf *sb, const char *name, unsigned allowed)
 
 int strbuf_check_branch_ref(struct strbuf *sb, const char *name)
 {
-       strbuf_branchname(sb, name, INTERPRET_BRANCH_LOCAL);
+       if (startup_info->have_repository)
+               strbuf_branchname(sb, name, INTERPRET_BRANCH_LOCAL);
+       else
+               strbuf_addstr(sb, name);
        if (name[0] == '-')
                return -1;
        strbuf_splice(sb, 0, 0, "refs/heads/", 11);