Merge git://repo.or.cz/git-gui

[git.git] / builtin-diff.c

diff --git a/builtin-diff.c b/builtin-diff.c
index 8f53f52dcbe74c1fdb6b7a54a8b250537bc821ee..583291a9c0e52ed8c8e678606be7ec02b603db60 100644 (file)
--- a/builtin-diff.c
+++ b/builtin-diff.c
@@ -44,12 +44,17 @@ static void stuff_change(struct diff_options *opt,
                tmp_u = old_sha1; old_sha1 = new_sha1; new_sha1 = tmp_u;
                tmp_c = old_name; old_name = new_name; new_name = tmp_c;
        }
+
+       if (opt->prefix &&
+           (strncmp(old_name, opt->prefix, opt->prefix_length) ||
+            strncmp(new_name, opt->prefix, opt->prefix_length)))
+               return;
+
        one = alloc_filespec(old_name);
        two = alloc_filespec(new_name);
        fill_filespec(one, old_sha1, old_mode);
        fill_filespec(two, new_sha1, new_mode);
 
-       /* NEEDSWORK: shouldn't this part of diffopt??? */
        diff_queue(&diff_queued_diff, one, two);
 }
 
@@ -205,7 +210,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
        int ents = 0, blobs = 0, paths = 0;
        const char *path = NULL;
        struct blobinfo blob[2];
-       int nongit = 0;
+       int nongit;
        int result = 0;
 
        /*
@@ -229,7 +234,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
         */
 
        prefix = setup_git_directory_gently(&nongit);
-       git_config(git_diff_ui_config);
+       git_config(git_diff_ui_config, NULL);
 
        if (diff_use_color_default == -1)
                diff_use_color_default = git_use_color_default;
@@ -246,6 +251,10 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
                if (diff_setup_done(&rev.diffopt) < 0)
                        die("diff_setup_done failed");
        }
+       if (rev.diffopt.prefix && nongit) {
+               rev.diffopt.prefix = NULL;
+               rev.diffopt.prefix_length = 0;
+       }
        DIFF_OPT_SET(&rev.diffopt, ALLOW_EXTERNAL);
        DIFF_OPT_SET(&rev.diffopt, RECURSIVE);