fmt-merge-msg: use pretty.c routines

This command duplicates functionality of the '%s' pretty format.
Simplify the code a bit by using the pretty printing routine
instead of open-coding it here.

Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/fmt-merge-msg.c b/builtin/fmt-merge-msg.c
index 9bb26255e0da1c56dd8caf85b8022ff426f9152f..44b74f447aa4c737749129d54c63afba274361f3 100644 (file)
--- a/builtin/fmt-merge-msg.c
+++ b/builtin/fmt-merge-msg.c
@@ -185,6 +185,7 @@ static void shortlog(const char *name, unsigned char *sha1,
        struct object *branch;
        struct list subjects = { NULL, NULL, 0, 0 };
        int flags = UNINTERESTING | TREESAME | SEEN | SHOWN | ADDED;
+       struct strbuf sb = STRBUF_INIT;
 
        branch = deref_tag(parse_object(sha1), sha1_to_hex(sha1), 40);
        if (!branch || branch->type != OBJ_COMMIT)
@@ -198,7 +199,7 @@ static void shortlog(const char *name, unsigned char *sha1,
        if (prepare_revision_walk(rev))
                die("revision walk setup failed");
        while ((commit = get_revision(rev)) != NULL) {
-               char *oneline, *bol, *eol;
+               struct pretty_print_context ctx = {0};
 
                /* ignore merges */
                if (commit->parents && commit->parents->next)
@@ -208,30 +209,16 @@ static void shortlog(const char *name, unsigned char *sha1,
                if (subjects.nr > limit)
                        continue;
 
-               bol = strstr(commit->buffer, "\n\n");
-               if (bol) {
-                       unsigned char c;
-                       do {
-                               c = *++bol;
-                       } while (isspace(c));
-                       if (!c)
-                               bol = NULL;
-               }
+               format_commit_message(commit, "%s", &sb, &ctx);
+               strbuf_ltrim(&sb);
 
-               if (!bol) {
+               if (!sb.len)
                        append_to_list(&subjects, xstrdup(sha1_to_hex(
                                                        commit->object.sha1)),
                                        NULL);
-                       continue;
-               }
-
-               eol = strchr(bol, '\n');
-               if (eol) {
-                       oneline = xmemdupz(bol, eol - bol);
-               } else {
-                       oneline = xstrdup(bol);
-               }
-               append_to_list(&subjects, oneline, NULL);
+               else
+                       append_to_list(&subjects, strbuf_detach(&sb, NULL),
+                                       NULL);
        }
 
        if (count > limit)