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/*
* Copyright (C) 2005 Junio C Hamano
*/
#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
* in anything else.
*/
#define MAX_SCORE 10000
#define DEFAULT_MINIMUM_SCORE 5000
#define RENAME_DST_MATCHED 01
#define RENAME_SRC_GONE 02
#define RENAME_SCORE_SHIFT 8
struct diff_filespec {
unsigned char sha1[20];
char *path;
void *data;
unsigned long size;
int xfrm_flags; /* for use by the xfrm */
unsigned short mode; /* file mode */
unsigned sha1_valid : 1; /* if true, use sha1 and trust mode;
* if false, use the name and read from
* the filesystem.
*/
#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 */
};
extern struct diff_filespec *alloc_filespec(const char *);
extern void fill_filespec(struct diff_filespec *, const unsigned char *,
unsigned short);
extern int diff_populate_filespec(struct diff_filespec *);
extern void diff_free_filespec_data(struct diff_filespec *);
struct diff_filepair {
struct diff_filespec *one;
struct diff_filespec *two;
char *xfrm_msg;
int orig_order; /* the original order of insertion into the queue */
int xfrm_work; /* for use by tramsformers, not by diffcore */
};
#define DIFF_PAIR_UNMERGED(p) \
(!DIFF_FILE_VALID((p)->one) && !DIFF_FILE_VALID((p)->two))
struct diff_queue_struct {
struct diff_filepair **queue;
int alloc;
int nr;
};
extern struct diff_queue_struct diff_queued_diff;
extern struct diff_filepair *diff_queue(struct diff_queue_struct *,
struct diff_filespec *,
struct diff_filespec *);
extern void diff_q(struct diff_queue_struct *, struct diff_filepair *);
extern void diff_free_filepair(struct diff_filepair *);
#endif
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