cherry: remove redundant check for merge commit

While walking the revision list in get_patch_ids and cmd_cherry, we
check for each commit if there is more than one parent and ignore
the commit if that is the case. Instead, set rev_info.max_parents to
1 and let the revision traversal code handle it for us.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/log.c b/builtin/log.c
index 8cea1e55bf7605c2303e443a381c5e2f94bddcbf..3423d11649460b2008bc4713282c1d02dbf6c7f7 100644 (file)
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -718,6 +718,7 @@ static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids)
 
        /* given a range a..b get all patch ids for b..a */
        init_revisions(&check_rev, rev->prefix);
+       check_rev.max_parents = 1;
        o1->flags ^= UNINTERESTING;
        o2->flags ^= UNINTERESTING;
        add_pending_object(&check_rev, o1, "o1");
@@ -726,10 +727,6 @@ static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids)
                die(_("revision walk setup failed"));
 
        while ((commit = get_revision(&check_rev)) != NULL) {
-               /* ignore merges */
-               if (commit->parents && commit->parents->next)
-                       continue;
-
                add_commit_patch_id(commit, ids);
        }
 
@@ -1508,6 +1505,7 @@ int cmd_cherry(int argc, const char **argv, const char *prefix)
        }
 
        init_revisions(&revs, prefix);
+       revs.max_parents = 1;
 
        if (add_pending_commit(head, &revs, 0))
                die(_("Unknown commit %s"), head);
@@ -1530,10 +1528,6 @@ int cmd_cherry(int argc, const char **argv, const char *prefix)
        if (prepare_revision_walk(&revs))
                die(_("revision walk setup failed"));
        while ((commit = get_revision(&revs)) != NULL) {
-               /* ignore merges */
-               if (commit->parents && commit->parents->next)
-                       continue;
-
                commit_list_insert(commit, &list);
        }