void mark_parents_uninteresting(struct commit *commit)
{
- struct commit_list *parents = commit->parents;
+ struct commit_list *parents = NULL, *l;
+
+ for (l = commit->parents; l; l = l->next)
+ commit_list_insert(l->item, &parents);
while (parents) {
struct commit *commit = parents->item;
- if (!(commit->object.flags & UNINTERESTING)) {
+ l = parents;
+ parents = parents->next;
+ free(l);
+
+ while (commit) {
+ /*
+ * A missing commit is ok iff its parent is marked
+ * uninteresting.
+ *
+ * We just mark such a thing parsed, so that when
+ * it is popped next time around, we won't be trying
+ * to parse it and get an error.
+ */
+ if (!has_sha1_file(commit->object.sha1))
+ commit->object.parsed = 1;
+
+ if (commit->object.flags & UNINTERESTING)
+ break;
+
commit->object.flags |= UNINTERESTING;
/*
* wasn't uninteresting), in which case we need
* to mark its parents recursively too..
*/
- if (commit->parents)
- mark_parents_uninteresting(commit);
- }
+ if (!commit->parents)
+ break;
- /*
- * A missing commit is ok iff its parent is marked
- * uninteresting.
- *
- * We just mark such a thing parsed, so that when
- * it is popped next time around, we won't be trying
- * to parse it and get an error.
- */
- if (!has_sha1_file(commit->object.sha1))
- commit->object.parsed = 1;
- parents = parents->next;
+ for (l = commit->parents->next; l; l = l->next)
+ commit_list_insert(l->item, &parents);
+ commit = commit->parents->item;
+ }
}
}
static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit)
{
struct commit_list **pp, *parent;
- int tree_changed = 0, tree_same = 0;
+ int tree_changed = 0, tree_same = 0, nth_parent = 0;
/*
* If we don't do pruning, everything is interesting
while ((parent = *pp) != NULL) {
struct commit *p = parent->item;
+ /*
+ * Do not compare with later parents when we care only about
+ * the first parent chain, in order to avoid derailing the
+ * traversal to follow a side branch that brought everything
+ * in the path we are limited to by the pathspec.
+ */
+ if (revs->first_parent_only && nth_parent++)
+ break;
if (parse_commit(p) < 0)
die("cannot simplify commit %s (because of %s)",
sha1_to_hex(commit->object.sha1),