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-rw-r--r--revision.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/revision.c b/revision.c
index 1c750705d8..edb7e1c4d1 100644
--- a/revision.c
+++ b/revision.c
@@ -2760,10 +2760,7 @@ enum commit_action get_commit_action(struct rev_info *revs, struct commit *commi
if (revs->min_age != -1 && (commit->date > revs->min_age))
return commit_ignore;
if (revs->min_parents || (revs->max_parents >= 0)) {
- int n = 0;
- struct commit_list *p;
- for (p = commit->parents; p; p = p->next)
- n++;
+ int n = commit_list_count(commit->parents);
if ((n < revs->min_parents) ||
((revs->max_parents >= 0) && (n > revs->max_parents)))
return commit_ignore;
@@ -2773,12 +2770,23 @@ enum commit_action get_commit_action(struct rev_info *revs, struct commit *commi
if (revs->prune && revs->dense) {
/* Commit without changes? */
if (commit->object.flags & TREESAME) {
+ int n;
+ struct commit_list *p;
/* drop merges unless we want parenthood */
if (!want_ancestry(revs))
return commit_ignore;
- /* non-merge - always ignore it */
- if (!commit->parents || !commit->parents->next)
- return commit_ignore;
+ /*
+ * If we want ancestry, then need to keep any merges
+ * between relevant commits to tie together topology.
+ * For consistency with TREESAME and simplification
+ * use "relevant" here rather than just INTERESTING,
+ * to treat bottom commit(s) as part of the topology.
+ */
+ for (n = 0, p = commit->parents; p; p = p->next)
+ if (relevant_commit(p->item))
+ if (++n >= 2)
+ return commit_show;
+ return commit_ignore;
}
}
return commit_show;