Merge branch 'mg/maint-tag-rfc1991' into maint

diff --git a/diff-lib.c b/diff-lib.c
index ea9cf561cd66564602ab3a66c29a15dc85ae19b0..392ce2bef05746cea7922d39da67bf25d1d3d192 100644 (file)
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -68,12 +68,16 @@ static int match_stat_with_submodule(struct diff_options *diffopt,
                                      unsigned ce_option, unsigned *dirty_submodule)
 {
        int changed = ce_match_stat(ce, st, ce_option);
-       if (S_ISGITLINK(ce->ce_mode)
-           && !DIFF_OPT_TST(diffopt, IGNORE_SUBMODULES)
-           && (!changed || DIFF_OPT_TST(diffopt, DIRTY_SUBMODULES))) {
-               *dirty_submodule = is_submodule_modified(ce->name);
-               if (*dirty_submodule)
-                       changed = 1;
+       if (S_ISGITLINK(ce->ce_mode)) {
+               unsigned orig_flags = diffopt->flags;
+               if (!DIFF_OPT_TST(diffopt, OVERRIDE_SUBMODULE_CONFIG))
+                       set_diffopt_flags_from_submodule_config(diffopt, ce->name);
+               if (DIFF_OPT_TST(diffopt, IGNORE_SUBMODULES))
+                       changed = 0;
+               else if (!DIFF_OPT_TST(diffopt, IGNORE_DIRTY_SUBMODULES)
+                   && (!changed || DIFF_OPT_TST(diffopt, DIRTY_SUBMODULES)))
+                       *dirty_submodule = is_submodule_modified(ce->name, DIFF_OPT_TST(diffopt, IGNORE_UNTRACKED_IN_SUBMODULES));
+               diffopt->flags = orig_flags;
        }
        return changed;
 }
@@ -202,7 +206,7 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
                }
                changed = match_stat_with_submodule(&revs->diffopt, ce, &st,
                                                    ce_option, &dirty_submodule);
-               if (!changed) {
+               if (!changed && !dirty_submodule) {
                        ce_mark_uptodate(ce);
                        if (!DIFF_OPT_TST(&revs->diffopt, FIND_COPIES_HARDER))
                                continue;
@@ -333,7 +337,7 @@ static int show_modified(struct rev_info *revs,
        }
 
        oldmode = old->ce_mode;
-       if (mode == oldmode && !hashcmp(sha1, old->sha1) &&
+       if (mode == oldmode && !hashcmp(sha1, old->sha1) && !dirty_submodule &&
            !DIFF_OPT_TST(&revs->diffopt, FIND_COPIES_HARDER))
                return 0;
 
@@ -521,9 +525,12 @@ int do_diff_cache(const unsigned char *tree_sha1, struct diff_options *opt)
 int index_differs_from(const char *def, int diff_flags)
 {
        struct rev_info rev;
+       struct setup_revision_opt opt;
 
        init_revisions(&rev, NULL);
-       setup_revisions(0, NULL, &rev, def);
+       memset(&opt, 0, sizeof(opt));
+       opt.def = def;
+       setup_revisions(0, NULL, &rev, &opt);
        DIFF_OPT_SET(&rev.diffopt, QUICK);
        DIFF_OPT_SET(&rev.diffopt, EXIT_WITH_STATUS);
        rev.diffopt.flags |= diff_flags;