Add clean.requireForce option, and add -f option to git-clean to override it

diff --git a/builtin-diff.c b/builtin-diff.c
index 28b660a780f9f2ae48acf5e8d3dc7c7aee178de2..2ae60097b8cfddd873a38f3988185d9fde77f511 100644 (file)
--- a/builtin-diff.c
+++ b/builtin-diff.c
@@ -190,6 +190,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
        const char *path = NULL;
        struct blobinfo blob[2];
        int nongit = 0;
+       int result = 0;
 
        /*
         * We could get N tree-ish in the rev.pending_objects list.
@@ -215,12 +216,16 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
        git_config(git_diff_ui_config);
        init_revisions(&rev, prefix);
 
-       argc = setup_revisions(argc, argv, &rev, NULL);
+       if (!setup_diff_no_index(&rev, argc, argv, nongit, prefix))
+               argc = 0;
+       else
+               argc = setup_revisions(argc, argv, &rev, NULL);
        if (!rev.diffopt.output_format) {
                rev.diffopt.output_format = DIFF_FORMAT_PATCH;
                if (diff_setup_done(&rev.diffopt) < 0)
                        die("diff_setup_done failed");
        }
+       rev.diffopt.allow_external = 1;
 
        /* Do we have --cached and not have a pending object, then
         * default to HEAD by hand.  Eek.
@@ -289,17 +294,17 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
        if (!ents) {
                switch (blobs) {
                case 0:
-                       return run_diff_files_cmd(&rev, argc, argv);
+                       result = run_diff_files_cmd(&rev, argc, argv);
                        break;
                case 1:
                        if (paths != 1)
                                usage(builtin_diff_usage);
-                       return builtin_diff_b_f(&rev, argc, argv, blob, path);
+                       result = builtin_diff_b_f(&rev, argc, argv, blob, path);
                        break;
                case 2:
                        if (paths)
                                usage(builtin_diff_usage);
-                       return builtin_diff_blobs(&rev, argc, argv, blob);
+                       result = builtin_diff_blobs(&rev, argc, argv, blob);
                        break;
                default:
                        usage(builtin_diff_usage);
@@ -308,19 +313,21 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
        else if (blobs)
                usage(builtin_diff_usage);
        else if (ents == 1)
-               return builtin_diff_index(&rev, argc, argv);
+               result = builtin_diff_index(&rev, argc, argv);
        else if (ents == 2)
-               return builtin_diff_tree(&rev, argc, argv, ent);
+               result = builtin_diff_tree(&rev, argc, argv, ent);
        else if ((ents == 3) && (ent[0].item->flags & UNINTERESTING)) {
                /* diff A...B where there is one sane merge base between
                 * A and B.  We have ent[0] == merge-base, ent[1] == A,
                 * and ent[2] == B.  Show diff between the base and B.
                 */
                ent[1] = ent[2];
-               return builtin_diff_tree(&rev, argc, argv, ent);
+               result = builtin_diff_tree(&rev, argc, argv, ent);
        }
        else
-               return builtin_diff_combined(&rev, argc, argv,
+               result = builtin_diff_combined(&rev, argc, argv,
                                             ent, ents);
-       usage(builtin_diff_usage);
+       if (rev.diffopt.exit_with_status)
+               result = rev.diffopt.has_changes;
+       return result;
 }