move index_has_changes() from builtin/am.c to merge.c for reuse

[thirdparty/git.git] / builtin / am.c

diff --git a/builtin/am.c b/builtin/am.c
index d7513f53759bc5834aa02bd904432f64e036ccb6..71619f01aab4ad8becfb7f208b95a3e6afb87632 100644 (file)
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -1142,43 +1142,6 @@ static void refresh_and_write_cache(void)
                die(_("unable to write index file"));
 }
 
-/**
- * Returns 1 if the index differs from HEAD, 0 otherwise. When on an unborn
- * branch, returns 1 if there are entries in the index, 0 otherwise. If an
- * strbuf is provided, the space-separated list of files that differ will be
- * appended to it.
- */
-static int index_has_changes(struct strbuf *sb)
-{
-       struct object_id head;
-       int i;
-
-       if (!get_oid_tree("HEAD", &head)) {
-               struct diff_options opt;
-
-               diff_setup(&opt);
-               DIFF_OPT_SET(&opt, EXIT_WITH_STATUS);
-               if (!sb)
-                       DIFF_OPT_SET(&opt, QUICK);
-               do_diff_cache(&head, &opt);
-               diffcore_std(&opt);
-               for (i = 0; sb && i < diff_queued_diff.nr; i++) {
-                       if (i)
-                               strbuf_addch(sb, ' ');
-                       strbuf_addstr(sb, diff_queued_diff.queue[i]->two->path);
-               }
-               diff_flush(&opt);
-               return DIFF_OPT_TST(&opt, HAS_CHANGES) != 0;
-       } else {
-               for (i = 0; sb && i < active_nr; i++) {
-                       if (i)
-                               strbuf_addch(sb, ' ');
-                       strbuf_addstr(sb, active_cache[i]->name);
-               }
-               return !!active_nr;
-       }
-}
-
 /**
  * Dies with a user-friendly message on how to proceed after resolving the
  * problem. This message can be overridden with state->resolvemsg.