Teach fast-import how to clear the internal branch content.

diff --git a/diff.h b/diff.h
index b007240a5dda9a9e1e54f22813c0d250b812fa3e..7a347cf77d448817014ceeaed2d3cd99b5894ac6 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -8,6 +8,7 @@
 
 struct rev_info;
 struct diff_options;
+struct diff_queue_struct;
 
 typedef void (*change_fn_t)(struct diff_options *options,
                 unsigned old_mode, unsigned new_mode,
@@ -20,25 +21,33 @@ typedef void (*add_remove_fn_t)(struct diff_options *options,
                    const unsigned char *sha1,
                    const char *base, const char *path);
 
+typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
+               struct diff_options *options, void *data);
+
 #define DIFF_FORMAT_RAW                0x0001
 #define DIFF_FORMAT_DIFFSTAT   0x0002
-#define DIFF_FORMAT_SUMMARY    0x0004
-#define DIFF_FORMAT_PATCH      0x0008
+#define DIFF_FORMAT_NUMSTAT    0x0004
+#define DIFF_FORMAT_SUMMARY    0x0008
+#define DIFF_FORMAT_PATCH      0x0010
+#define DIFF_FORMAT_SHORTSTAT  0x0020
 
 /* These override all above */
-#define DIFF_FORMAT_NAME       0x0010
-#define DIFF_FORMAT_NAME_STATUS        0x0020
-#define DIFF_FORMAT_CHECKDIFF  0x0040
+#define DIFF_FORMAT_NAME       0x0100
+#define DIFF_FORMAT_NAME_STATUS        0x0200
+#define DIFF_FORMAT_CHECKDIFF  0x0400
 
 /* Same as output_format = 0 but we know that -s flag was given
  * and we should not give default value to output_format.
  */
-#define DIFF_FORMAT_NO_OUTPUT  0x0080
+#define DIFF_FORMAT_NO_OUTPUT  0x0800
+
+#define DIFF_FORMAT_CALLBACK   0x1000
 
 struct diff_options {
        const char *filter;
        const char *orderfile;
        const char *pickaxe;
+       const char *single_follow;
        unsigned recursive:1,
                 tree_in_recursive:1,
                 binary:1,
@@ -63,11 +72,16 @@ struct diff_options {
        const char *stat_sep;
        long xdl_opts;
 
+       int stat_width;
+       int stat_name_width;
+
        int nr_paths;
        const char **paths;
        int *pathlens;
        change_fn_t change;
        add_remove_fn_t add_remove;
+       diff_format_fn_t format_callback;
+       void *format_callback_data;
 };
 
 enum color_diff {
@@ -78,6 +92,7 @@ enum color_diff {
        DIFF_FILE_OLD = 4,
        DIFF_FILE_NEW = 5,
        DIFF_COMMIT = 6,
+       DIFF_WHITESPACE = 7,
 };
 const char *diff_get_color(int diff_use_color, enum color_diff ix);
 
@@ -89,6 +104,8 @@ extern int diff_tree(struct tree_desc *t1, struct tree_desc *t2,
                     const char *base, struct diff_options *opt);
 extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new,
                          const char *base, struct diff_options *opt);
+extern int diff_root_tree_sha1(const unsigned char *new, const char *base,
+                               struct diff_options *opt);
 
 struct combine_diff_path {
        struct combine_diff_path *next;
@@ -127,7 +144,9 @@ extern void diff_change(struct diff_options *,
                        const char *base, const char *path);
 
 extern void diff_unmerge(struct diff_options *,
-                        const char *path);
+                        const char *path,
+                        unsigned mode,
+                        const unsigned char *sha1);
 
 extern int diff_scoreopt_parse(const char *opt);
 
@@ -158,6 +177,7 @@ extern void diffcore_std_no_resolve(struct diff_options *);
 "  --patch-with-raw\n" \
 "                output both a patch and the diff-raw format.\n" \
 "  --stat        show diffstat instead of patch.\n" \
+"  --numstat     show numeric diffstat instead of patch.\n" \
 "  --patch-with-stat\n" \
 "                output a patch and prepend its diffstat.\n" \
 "  --name-only   show only names of changed files.\n" \