Keep the parents in order when parsing commits

We used to keep the parents in reverse order in the commit_list.  Most
users don't care, but it's wrong, and the next commit does care.

diff --git a/commit.c b/commit.c
index 60047a06d376d4f1144af6a14efc059cec5d2843..738590f31a397da0e398db3d350d29aff797965c 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -63,6 +63,7 @@ int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size)
 {
        void *bufptr = buffer;
        unsigned char parent[20];
+       struct commit_list **pptr;
 
        if (item->object.parsed)
                return 0;
@@ -72,11 +73,12 @@ int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size)
        if (item->tree)
                add_ref(&item->object, &item->tree->object);
        bufptr += 46; /* "tree " + "hex sha1" + "\n" */
+       pptr = &item->parents;
        while (!memcmp(bufptr, "parent ", 7) &&
               !get_sha1_hex(bufptr + 7, parent)) {
                struct commit *new_parent = lookup_commit(parent);
                if (new_parent) {
-                       commit_list_insert(new_parent, &item->parents);
+                       pptr = &commit_list_insert(new_parent, pptr)->next;
                        add_ref(&item->object, &new_parent->object);
                }
                bufptr += 48;