fetch: convert argv_gc_auto to struct argv_array

diff --git a/walker.c b/walker.c
index 1dd86b8f33e04cfc6c0616578416acb1160b5718..014826464e07c93374868c61673cfe308961dfb7 100644 (file)
--- a/walker.c
+++ b/walker.c
@@ -253,7 +253,8 @@ int walker_fetch(struct walker *walker, int targets, char **target,
 {
        struct ref_lock **lock = xcalloc(targets, sizeof(struct ref_lock *));
        unsigned char *sha1 = xmalloc(targets * 20);
-       char *msg;
+       const char *msg;
+       char *to_free = NULL;
        int ret;
        int i;
 
@@ -285,21 +286,19 @@ int walker_fetch(struct walker *walker, int targets, char **target,
        if (loop(walker))
                goto unlock_and_fail;
 
-       if (write_ref_log_details) {
-               msg = xmalloc(strlen(write_ref_log_details) + 12);
-               sprintf(msg, "fetch from %s", write_ref_log_details);
-       } else {
-               msg = NULL;
-       }
+       if (write_ref_log_details)
+               msg = to_free = xstrfmt("fetch from %s", write_ref_log_details);
+       else
+               msg = "fetch (unknown)";
        for (i = 0; i < targets; i++) {
                if (!write_ref || !write_ref[i])
                        continue;
-               ret = write_ref_sha1(lock[i], &sha1[20 * i], msg ? msg : "fetch (unknown)");
+               ret = write_ref_sha1(lock[i], &sha1[20 * i], msg);
                lock[i] = NULL;
                if (ret)
                        goto unlock_and_fail;
        }
-       free(msg);
+       free(to_free);
 
        return 0;
 
@@ -307,6 +306,7 @@ int walker_fetch(struct walker *walker, int targets, char **target,
        for (i = 0; i < targets; i++)
                if (lock[i])
                        unlock_ref(lock[i]);
+       free(to_free);
 
        return -1;
 }