mergesort: rename it to llist_mergesort()

diff --git a/submodule.c b/submodule.c
index 52cdcc6a6347a786deafad34efdb9dc4dc3670ff..9a2806067954c55a27c068706b5bfe67a1189fd5 100644 (file)
--- a/submodule.c
+++ b/submodule.c
@@ -371,27 +371,15 @@ static void collect_submodules_from_diff(struct diff_queue_struct *q,
 }
 
 
-static void commit_need_pushing(struct commit *commit, struct commit_list *parent, int *needs_pushing)
+static void commit_need_pushing(struct commit *commit, int *needs_pushing)
 {
-       const unsigned char (*parents)[20];
-       unsigned int i, n;
        struct rev_info rev;
 
-       n = commit_list_count(parent);
-       parents = xmalloc(n * sizeof(*parents));
-
-       for (i = 0; i < n; i++) {
-               hashcpy((unsigned char *)(parents + i), parent->item->object.sha1);
-               parent = parent->next;
-       }
-
        init_revisions(&rev, NULL);
        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
        rev.diffopt.format_callback = collect_submodules_from_diff;
        rev.diffopt.format_callback_data = needs_pushing;
-       diff_tree_combined(commit->object.sha1, parents, n, 1, &rev);
-
-       free((void *)parents);
+       diff_tree_combined_merge(commit, 1, &rev);
 }
 
 int check_submodule_needs_pushing(unsigned char new_sha1[20], const char *remotes_name)
@@ -414,7 +402,7 @@ int check_submodule_needs_pushing(unsigned char new_sha1[20], const char *remote
                die("revision walk setup failed");
 
        while ((commit = get_revision(&rev)) && !needs_pushing)
-               commit_need_pushing(commit, commit->parents, &needs_pushing);
+               commit_need_pushing(commit, &needs_pushing);
 
        free(sha1_copy);
        strbuf_release(&remotes_arg);
@@ -689,7 +677,7 @@ unsigned is_submodule_modified(const char *path, int ignore_untracked)
        cp.out = -1;
        cp.dir = path;
        if (start_command(&cp))
-               die("Could not run git status --porcelain");
+               die("Could not run 'git status --porcelain' in submodule %s", path);
 
        len = strbuf_read(&buf, cp.out, 1024);
        line = buf.buf;
@@ -714,7 +702,7 @@ unsigned is_submodule_modified(const char *path, int ignore_untracked)
        close(cp.out);
 
        if (finish_command(&cp))
-               die("git status --porcelain failed");
+               die("'git status --porcelain' failed in submodule %s", path);
 
        strbuf_release(&buf);
        return dirty_submodule;