diff.h

   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  */
  10 extern void show_differences(const struct cache_entry *ce, int reverse);
  11 extern void show_diff_empty(const struct cache_entry *ce, int reverse);
  12
  13 struct 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
  28 extern void run_external_diff(const char *name,
  29                               struct diff_spec *, struct diff_spec *);
  30
  31 #endif /* DIFF_H */