[PATCH] Fix --merge-order unit test breaks introduced by 6c88be169881c9223532796bd225e79afaa115e1

The sensible cleanup of the in-memory storage order of commit parents broke the --merge-order
code which was dependent on the previous behaviour of parse_commit().

This patch restores the correctness --merge-order behaviour by taking account of the
new behaviour of parse_commit.

Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/epoch.c b/epoch.c
index 35756a37ee13a752f73568c4570250aa28bf8afa..a7e84fc59a0927334747effc8d41138a8569a96d 100644 (file)
--- a/epoch.c
+++ b/epoch.c
@@ -424,18 +424,9 @@ static void mark_ancestors_uninteresting(struct commit *commit)
 static void sort_first_epoch(struct commit *head, struct commit_list **stack)
 {
        struct commit_list *parents;
-       struct commit_list *reversed_parents = NULL;
 
        head->object.flags |= VISITED;
 
-       /*
-        * parse_commit() builds the parent list in reverse order with respect
-        * to the order of the git-commit-tree arguments. So we need to reverse
-        * this list to output the oldest (or most "local") commits last.
-        */
-       for (parents = head->parents; parents; parents = parents->next)
-               commit_list_insert(parents->item, &reversed_parents);
-
        /*
         * TODO: By sorting the parents in a different order, we can alter the
         * merge order to show contemporaneous changes in parallel branches
@@ -445,8 +436,8 @@ static void sort_first_epoch(struct commit *head, struct commit_list **stack)
         * changes.
         */
 
-       while (reversed_parents) {
-               struct commit *parent = pop_commit(&reversed_parents);
+       for (parents = head->parents; parents; parents = parents->next) {
+               struct commit *parent = parents->item;
 
                if (head->object.flags & UNINTERESTING) {
                        /*
@@ -470,7 +461,7 @@ static void sort_first_epoch(struct commit *head, struct commit_list **stack)
 
                        } else {
                                sort_first_epoch(parent, stack);
-                               if (reversed_parents) {
+                               if (parents) {
                                        /*
                                         * This indicates a possible
                                         * discontinuity it may not be be