Clean-up trivially redundant diff.

diff --git a/diff.h b/diff.h
index 32b4780173d78bfd0e77a37f82df4a59aa502ec1..a268d16ff712e29fbccab779824551757f99837d 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -4,14 +4,7 @@
 #ifndef DIFF_H
 #define DIFF_H
 
-#define DIFF_FILE_CANON_MODE(mode) \
-       (S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \
-       S_ISLNK(mode) ? S_IFLNK : S_IFDIR)
-
-struct tree_desc {
-       void *buf;
-       unsigned long size;
-};
+#include "tree-walk.h"
 
 struct diff_options;
 
@@ -44,6 +37,7 @@ struct diff_options {
        int reverse_diff;
        int rename_limit;
        int setup;
+       int abbrev;
 
        change_fn_t change;
        add_remove_fn_t add_remove;
@@ -55,6 +49,28 @@ extern int diff_tree(struct tree_desc *t1, struct tree_desc *t2,
 extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new,
                          const char *base, struct diff_options *opt);
 
+struct combine_diff_path {
+       struct combine_diff_path *next;
+       int len;
+       char *path;
+       unsigned int mode;
+       unsigned char sha1[20];
+       struct combine_diff_parent {
+               char status;
+               unsigned int mode;
+               unsigned char sha1[20];
+       } parent[FLEX_ARRAY];
+};
+#define combine_diff_path_size(n, l) \
+       (sizeof(struct combine_diff_path) + \
+        sizeof(struct combine_diff_parent) * (n) + (l) + 1)
+
+extern int show_combined_diff(struct combine_diff_path *elem, int num_parent,
+                             int dense, const char *header,
+                             struct diff_options *);
+
+extern const char *diff_tree_combined_merge(const unsigned char *sha1, const char *, int, struct diff_options *opt);
+
 extern void diff_addremove(struct diff_options *,
                           int addremove,
                           unsigned mode,
@@ -98,7 +114,8 @@ extern void diffcore_std_no_resolve(struct diff_options *);
 "  -u            synonym for -p.\n" \
 "  --name-only   show only names of changed files.\n" \
 "  --name-status show names and status of changed files.\n" \
-"  --full-index  show full object name on index ines.\n" \
+"  --full-index  show full object name on index lines.\n" \
+"  --abbrev=<n>  abbreviate object names in diff-tree header and diff-raw.\n" \
 "  -R            swap input file pairs.\n" \
 "  -B            detect complete rewrites.\n" \
 "  -M            detect renames.\n" \
@@ -137,4 +154,6 @@ extern void diff_flush(struct diff_options*);
 #define DIFF_STATUS_FILTER_AON         '*'
 #define DIFF_STATUS_FILTER_BROKEN      'B'
 
+extern const char *diff_unique_abbrev(const unsigned char *, int);
+
 #endif /* DIFF_H */