format-patch: refactor get_patch_filename

diff --git a/builtin/branch.c b/builtin/branch.c
index d51648fee4e73ef7fb72f32c722b79a913d6b275..0e060f2e4a982efdda0f88d021e0a9d3f23c6b75 100644 (file)
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -391,6 +391,7 @@ static void fill_tracking_info(struct strbuf *stat, const char *branch_name,
                int show_upstream_ref)
 {
        int ours, theirs;
+       char *ref = NULL;
        struct branch *branch = branch_get(branch_name);
 
        if (!stat_tracking_info(branch, &ours, &theirs)) {
@@ -401,16 +402,29 @@ static void fill_tracking_info(struct strbuf *stat, const char *branch_name,
                return;
        }
 
-       strbuf_addch(stat, '[');
        if (show_upstream_ref)
-               strbuf_addf(stat, "%s: ",
-                       shorten_unambiguous_ref(branch->merge[0]->dst, 0));
-       if (!ours)
-               strbuf_addf(stat, _("behind %d] "), theirs);
-       else if (!theirs)
-               strbuf_addf(stat, _("ahead %d] "), ours);
-       else
-               strbuf_addf(stat, _("ahead %d, behind %d] "), ours, theirs);
+               ref = shorten_unambiguous_ref(branch->merge[0]->dst, 0);
+       if (!ours) {
+               if (ref)
+                       strbuf_addf(stat, _("[%s: behind %d]"), ref, theirs);
+               else
+                       strbuf_addf(stat, _("[behind %d]"), theirs);
+
+       } else if (!theirs) {
+               if (ref)
+                       strbuf_addf(stat, _("[%s: ahead %d]"), ref, ours);
+               else
+                       strbuf_addf(stat, _("[ahead %d]"), ours);
+       } else {
+               if (ref)
+                       strbuf_addf(stat, _("[%s: ahead %d, behind %d]"),
+                                   ref, ours, theirs);
+               else
+                       strbuf_addf(stat, _("[ahead %d, behind %d]"),
+                                   ours, theirs);
+       }
+       strbuf_addch(stat, ' ');
+       free(ref);
 }
 
 static int matches_merge_filter(struct commit *commit)