1/* 2 * Copyright (C) 2005 Junio C Hamano 3 */ 4#ifndef DIFF_H 5#define DIFF_H 6 7/* These two are for backward compatibility with show-diff; 8 * new users should not use them. 9 */ 10extern void show_differences(const struct cache_entry *ce, int reverse); 11extern void show_diff_empty(const struct cache_entry *ce, int reverse); 12 13struct diff_spec { 14 union { 15 const char *name; /* path on the filesystem */ 16 unsigned char sha1[20]; /* blob object ID */ 17 } u; 18 unsigned short mode; /* file mode */ 19 unsigned sha1_valid : 1; /* if true, use u.sha1 and trust mode. 20 * (however with a NULL SHA1, read them 21 * from the file!). 22 * if false, use u.name and read mode from 23 * the filesystem. 24 */ 25 unsigned file_valid : 1; /* if false the file does not even exist */ 26}; 27 28extern void run_external_diff(const char *name, 29 struct diff_spec *, struct diff_spec *); 30 31#endif /* DIFF_H */