git-am: propagate -C<n>, -p<n> options as well

diff --git a/builtin-diff.c b/builtin-diff.c
index 9c8c295732bf12990b8324bf75968fd68dd41d59..dddcf697d7447b11d618ac5983516fd1789b0d39 100644 (file)
--- a/builtin-diff.c
+++ b/builtin-diff.c
@@ -118,7 +118,7 @@ static int builtin_diff_index(struct rev_info *revs,
        int cached = 0;
        while (1 < argc) {
                const char *arg = argv[1];
-               if (!strcmp(arg, "--cached"))
+               if (!strcmp(arg, "--cached") || !strcmp(arg, "--staged"))
                        cached = 1;
                else
                        usage(builtin_diff_usage);
@@ -134,8 +134,8 @@ static int builtin_diff_index(struct rev_info *revs,
            revs->max_count != -1 || revs->min_age != -1 ||
            revs->max_age != -1)
                usage(builtin_diff_usage);
-       if (read_cache() < 0) {
-               perror("read_cache");
+       if (read_cache_preload(revs->diffopt.paths) < 0) {
+               perror("read_cache_preload");
                return -1;
        }
        return run_diff_index(revs, cached);
@@ -234,8 +234,8 @@ static int builtin_diff_files(struct rev_info *revs, int argc, const char **argv
                revs->combine_merges = revs->dense_combined_merges = 1;
 
        setup_work_tree();
-       if (read_cache() < 0) {
-               perror("read_cache");
+       if (read_cache_preload(revs->diffopt.paths) < 0) {
+               perror("read_cache_preload");
                return -1;
        }
        result = run_diff_files(revs, options);
@@ -290,6 +290,9 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
        /* Otherwise, we are doing the usual "git" diff */
        rev.diffopt.skip_stat_unmatch = !!diff_auto_refresh_index;
 
+       /* Default to let external be used */
+       DIFF_OPT_SET(&rev.diffopt, ALLOW_EXTERNAL);
+
        if (nongit)
                die("Not a git repository");
        argc = setup_revisions(argc, argv, &rev, NULL);
@@ -298,8 +301,9 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
                if (diff_setup_done(&rev.diffopt) < 0)
                        die("diff_setup_done failed");
        }
-       DIFF_OPT_SET(&rev.diffopt, ALLOW_EXTERNAL);
+
        DIFF_OPT_SET(&rev.diffopt, RECURSIVE);
+       DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 
        /*
         * If the user asked for our exit code then don't start a
@@ -319,7 +323,8 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
                        const char *arg = argv[i];
                        if (!strcmp(arg, "--"))
                                break;
-                       else if (!strcmp(arg, "--cached")) {
+                       else if (!strcmp(arg, "--cached") ||
+                                !strcmp(arg, "--staged")) {
                                add_head_to_pending(&rev);
                                if (!rev.pending.nr)
                                        die("No HEAD commit to compare with (yet)");