read-tree -m -u: avoid getting confused by intermediate symlinks.

[git.git] / diffcore.h

diff --git a/diffcore.h b/diffcore.h
index f1b5ca748cae8d40f599552c3605080808da7803..7b9294eab2c1cb9f7cb03307c90203344d97e3f6 100644 (file)
--- a/diffcore.h
+++ b/diffcore.h
@@ -1,8 +1,8 @@
 /*
  * Copyright (C) 2005 Junio C Hamano
  */
-#ifndef _DIFFCORE_H_
-#define _DIFFCORE_H_
+#ifndef DIFFCORE_H
+#define DIFFCORE_H
 
 /* This header file is internal between diff.c and its diff transformers
  * (e.g. diffcore-rename, diffcore-pickaxe).  Never include this header
@@ -15,10 +15,10 @@
  * passed around in one int (high 16-bit for merge and low 16-bit
  * for break).
  */
-#define MAX_SCORE 60000
+#define MAX_SCORE 60000.0
 #define DEFAULT_RENAME_SCORE 30000 /* rename/copy similarity minimum (50%) */
-#define DEFAULT_BREAK_SCORE  30000 /* minimum for break to happen (50%)*/
-#define DEFAULT_MERGE_SCORE  48000 /* maximum for break-merge to happen (80%)*/
+#define DEFAULT_BREAK_SCORE  30000 /* minimum for break to happen (50%) */
+#define DEFAULT_MERGE_SCORE  36000 /* maximum for break-merge to happen 60%) */
 
 #define MINIMUM_BREAK_SIZE     400 /* do not break a file smaller than this */
 
@@ -26,6 +26,7 @@ struct diff_filespec {
        unsigned char sha1[20];
        char *path;
        void *data;
+       void *cnt_data;
        unsigned long size;
        int xfrm_flags;          /* for use by the xfrm */
        unsigned short mode;     /* file mode */
@@ -52,11 +53,12 @@ struct diff_filepair {
        char status; /* M C R N D U (see Documentation/diff-format.txt) */
        unsigned source_stays : 1; /* all of R/C are copies */
        unsigned broken_pair : 1;
+       unsigned renamed_pair : 1;
+       unsigned is_unmerged : 1;
 };
-#define DIFF_PAIR_UNMERGED(p) \
-       (!DIFF_FILE_VALID((p)->one) && !DIFF_FILE_VALID((p)->two))
+#define DIFF_PAIR_UNMERGED(p) ((p)->is_unmerged)
 
-#define DIFF_PAIR_RENAME(p) (strcmp((p)->one->path, (p)->two->path))
+#define DIFF_PAIR_RENAME(p) ((p)->renamed_pair)
 
 #define DIFF_PAIR_BROKEN(p) \
        ( (!DIFF_FILE_VALID((p)->one) != !DIFF_FILE_VALID((p)->two)) && \
@@ -85,7 +87,7 @@ extern void diff_q(struct diff_queue_struct *, struct diff_filepair *);
 
 extern void diffcore_pathspec(const char **pathspec);
 extern void diffcore_break(int);
-extern void diffcore_rename(int rename_copy, int);
+extern void diffcore_rename(struct diff_options *);
 extern void diffcore_merge_broken(void);
 extern void diffcore_pickaxe(const char *needle, int opts);
 extern void diffcore_order(const char *orderfile);
@@ -101,4 +103,12 @@ void diff_debug_queue(const char *, struct diff_queue_struct *);
 #define diff_debug_queue(a,b) do {} while(0)
 #endif
 
+extern int diffcore_count_changes(void *src, unsigned long src_size,
+                                 void *dst, unsigned long dst_size,
+                                 void **src_count_p,
+                                 void **dst_count_p,
+                                 unsigned long delta_limit,
+                                 unsigned long *src_copied,
+                                 unsigned long *literal_added);
+
 #endif