branch: split off function that writes tracking info and commit subject

Introduce a add_verbose_info function that takes care of adding

 - an abbreviated object name;
 - a summary of the form [ahead x, behind y] of the relationship
   to the corresponding upstream branch;
 - a one line commit subject

for the tip commit of a branch, for use in "git branch -v" output.

No functional change intended.  This just unindents the code a little
and makes it easier to skip on first reading.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/branch.c b/builtin/branch.c
index fe8f2fcd524cd690c8601d9370079f9d9ea21df3..b9ba011f7b3f37a9448afae909d743249c3d8e1f 100644 (file)
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -390,6 +390,30 @@ static int matches_merge_filter(struct commit *commit)
        return (is_merged == (merge_filter == SHOW_MERGED));
 }
 
+static void add_verbose_info(struct strbuf *out, struct ref_item *item,
+                            int verbose, int abbrev)
+{
+       struct strbuf subject = STRBUF_INIT, stat = STRBUF_INIT;
+       const char *sub = " **** invalid ref ****";
+       struct commit *commit = item->commit;
+
+       if (commit && !parse_commit(commit)) {
+               struct pretty_print_context ctx = {0};
+               pretty_print_commit(CMIT_FMT_ONELINE, commit,
+                                   &subject, &ctx);
+               sub = subject.buf;
+       }
+
+       if (item->kind == REF_LOCAL_BRANCH)
+               fill_tracking_info(&stat, item->name, verbose > 1);
+
+       strbuf_addf(out, " %s %s%s",
+               find_unique_abbrev(item->commit->object.sha1, abbrev),
+               stat.buf, sub);
+       strbuf_release(&stat);
+       strbuf_release(&subject);
+}
+
 static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
                           int abbrev, int current, char *prefix)
 {
@@ -430,27 +454,9 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
 
        if (item->dest)
                strbuf_addf(&out, " -> %s", item->dest);
-       else if (verbose) {
-               struct strbuf subject = STRBUF_INIT, stat = STRBUF_INIT;
-               const char *sub = " **** invalid ref ****";
-
-               commit = item->commit;
-               if (commit && !parse_commit(commit)) {
-                       struct pretty_print_context ctx = {0};
-                       pretty_print_commit(CMIT_FMT_ONELINE, commit,
-                                           &subject, &ctx);
-                       sub = subject.buf;
-               }
-
-               if (item->kind == REF_LOCAL_BRANCH)
-                       fill_tracking_info(&stat, item->name, verbose > 1);
-
-               strbuf_addf(&out, " %s %s%s",
-                       find_unique_abbrev(item->commit->object.sha1, abbrev),
-                       stat.buf, sub);
-               strbuf_release(&stat);
-               strbuf_release(&subject);
-       }
+       else if (verbose)
+               /* " f7c0c00 [ahead 58, behind 197] vcs-svn: drop obj_pool.h" */
+               add_verbose_info(&out, item, verbose, abbrev);
        printf("%s\n", out.buf);
        strbuf_release(&name);
        strbuf_release(&out);