1/* 2 * Copyright (C) 2005 Junio C Hamano 3 */ 4#ifndef _DIFFCORE_H_ 5#define _DIFFCORE_H_ 6 7/* This header file is internal between diff.c and its diff transformers 8 * (e.g. diffcore-rename, diffcore-pickaxe). Never include this header 9 * in anything else. 10 */ 11#define MAX_SCORE 10000 12#define DEFAULT_MINIMUM_SCORE 5000 13 14#define RENAME_DST_MATCHED 01 15#define RENAME_SRC_GONE 02 16#define RENAME_SCORE_SHIFT 8 17 18struct diff_filespec { 19 unsigned char sha1[20]; 20 char *path; 21 void *data; 22 unsigned long size; 23 int xfrm_flags; /* for use by the xfrm */ 24 unsigned short mode; /* file mode */ 25 unsigned sha1_valid : 1; /* if true, use sha1 and trust mode; 26 * if false, use the name and read from 27 * the filesystem. 28 */ 29 unsigned file_valid : 1; /* if false the file does not exist */ 30 unsigned should_free : 1; /* data should be free()'ed */ 31 unsigned should_munmap : 1; /* data should be munmap()'ed */ 32}; 33 34extern struct diff_filespec *alloc_filespec(const char *); 35extern void fill_filespec(struct diff_filespec *, const unsigned char *, 36 unsigned short); 37 38extern int diff_populate_filespec(struct diff_filespec *); 39extern void diff_free_filespec_data(struct diff_filespec *); 40 41struct diff_filepair { 42 struct diff_filespec *one; 43 struct diff_filespec *two; 44 char *xfrm_msg; 45 int orig_order; /* the original order of insertion into the queue */ 46 int xfrm_work; /* for use by tramsformers, not by diffcore */ 47}; 48 49struct diff_queue_struct { 50 struct diff_filepair **queue; 51 int alloc; 52 int nr; 53}; 54 55extern struct diff_queue_struct diff_queued_diff; 56extern struct diff_filepair *diff_queue(struct diff_queue_struct *, 57 struct diff_filespec *, 58 struct diff_filespec *); 59 60#endif