tar-tree: Introduce write_entry()

[git.git] / diffcore.h

diff --git a/diffcore.h b/diffcore.h
index 1f4b32c..dba4f17 100644 (file)
--- a/diffcore.h
+++ b/diffcore.h
@@ -8,9 +8,19 @@
  * (e.g. diffcore-rename, diffcore-pickaxe).  Never include this header
  * in anything else.
  */
-#define MAX_SCORE 60000
+
+/* We internally use unsigned short as the score value,
+ * and rely on an int capable to hold 32-bits.  -B can take
+ * -Bmerge_score/break_score format and the two scores are
+ * passed around in one int (high 16-bit for merge and low 16-bit
+ * for break).
+ */
+#define MAX_SCORE 60000.0
 #define DEFAULT_RENAME_SCORE 30000 /* rename/copy similarity minimum (50%) */
-#define DEFAULT_BREAK_SCORE  59400 /* minimum for break to happen (99%)*/
+#define DEFAULT_BREAK_SCORE  30000 /* minimum for break to happen (50%)*/
+#define DEFAULT_MERGE_SCORE  48000 /* maximum for break-merge to happen (80%)*/
+
+#define MINIMUM_BREAK_SIZE     400 /* do not break a file smaller than this */
 
 struct diff_filespec {
        unsigned char sha1[20];
@@ -73,6 +83,13 @@ extern struct diff_filepair *diff_queue(struct diff_queue_struct *,
                                        struct diff_filespec *);
 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(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);
+
 #define DIFF_DEBUG 0
 #if DIFF_DEBUG
 void diff_debug_filespec(struct diff_filespec *, int, const char *);
@@ -84,4 +101,10 @@ 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,
+                                 unsigned long delta_limit,
+                                 unsigned long *src_copied,
+                                 unsigned long *literal_added);
+
 #endif