Start a library for cvsimport-related tests

[git.git] / diffcore.h

diff --git a/diffcore.h b/diffcore.h
index 73c7842cc7fd907519016b936a96b6f08cd80b47..5b634585e8970de81067b9807d8813c083b86b0a 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
@@ -22,13 +22,18 @@
 
 #define MINIMUM_BREAK_SIZE     400 /* do not break a file smaller than this */
 
+struct userdiff_driver;
+
 struct diff_filespec {
        unsigned char sha1[20];
        char *path;
        void *data;
        void *cnt_data;
+       const char *funcname_pattern_ident;
        unsigned long size;
+       int count;               /* Reference count */
        int xfrm_flags;          /* for use by the xfrm */
+       int rename_used;         /* Count of rename users */
        unsigned short mode;     /* file mode */
        unsigned sha1_valid : 1; /* if true, use sha1 and trust mode;
                                  * if false, use the name and read from
@@ -37,27 +42,34 @@ struct diff_filespec {
 #define DIFF_FILE_VALID(spec) (((spec)->mode) != 0)
        unsigned should_free : 1; /* data should be free()'ed */
        unsigned should_munmap : 1; /* data should be munmap()'ed */
+
+       struct userdiff_driver *driver;
+       /* data should be considered "binary"; -1 means "don't know yet" */
+       int is_binary;
 };
 
 extern struct diff_filespec *alloc_filespec(const char *);
+extern void free_filespec(struct diff_filespec *);
 extern void fill_filespec(struct diff_filespec *, const unsigned char *,
                          unsigned short);
 
 extern int diff_populate_filespec(struct diff_filespec *, int);
 extern void diff_free_filespec_data(struct diff_filespec *);
+extern void diff_free_filespec_blob(struct diff_filespec *);
+extern int diff_filespec_is_binary(struct diff_filespec *);
 
 struct diff_filepair {
        struct diff_filespec *one;
        struct diff_filespec *two;
        unsigned short int score;
-       char status; /* M C R N D U (see Documentation/diff-format.txt) */
-       unsigned source_stays : 1; /* all of R/C are copies */
+       char status; /* M C R A D U etc. (see Documentation/diff-format.txt or DIFF_STATUS_* in diff.h) */
        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)) && \
@@ -84,7 +96,6 @@ 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);
@@ -102,8 +113,8 @@ 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,
+extern int diffcore_count_changes(struct diff_filespec *src,
+                                 struct diff_filespec *dst,
                                  void **src_count_p,
                                  void **dst_count_p,
                                  unsigned long delta_limit,