diff --git a/diff-lib.c b/diff-lib.c
index a41e1ec07ccd707969aa51768dac3e2b6356ddc6..79d06068344f5a602f6c8799f6671ccbf98cf49c 100644 (file)
--- a/diff-lib.c
+++ b/diff-lib.c
exit(128);
return 0;
}
+
+int index_differs_from(const char *def, int diff_flags)
+{
+ struct rev_info rev;
+
+ init_revisions(&rev, NULL);
+ setup_revisions(0, NULL, &rev, def);
+ DIFF_OPT_SET(&rev.diffopt, QUIET);
+ DIFF_OPT_SET(&rev.diffopt, EXIT_WITH_STATUS);
+ rev.diffopt.flags |= diff_flags;
+ run_diff_index(&rev, 1);
+ if (rev.pending.alloc)
+ free(rev.pending.objects);
+ return (DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES) != 0);
+}