builtin-diff-files.c

   1 /*
   2  * GIT - The information manager from hell
   3  *
   4  * Copyright (C) Linus Torvalds, 2005
   5  */
   6 #include "cache.h"
   7 #include "diff.h"
   8 #include "commit.h"
   9 #include "revision.h"
  10 #include "builtin.h"
  11
  12 static const char diff_files_usage[] =
  13 "git-diff-files [-q] [-0/-1/2/3 |-c|--cc|--no-index] [<common diff options>] [<path>...]"
  14 COMMON_DIFF_OPTIONS_HELP;
  15
  16 int cmd_diff_files(int argc, const char **argv, const char *prefix)
  17 {
  18         struct rev_info rev;
  19         int nongit = 0;
  20         int result;
  21
  22         prefix = setup_git_directory_gently(&nongit);
  23         init_revisions(&rev, prefix);
  24         git_config(git_default_config); /* no "diff" UI options */
  25         rev.abbrev = 0;
  26
  27         if (!setup_diff_no_index(&rev, argc, argv, nongit, prefix))
  28                 argc = 0;
  29         else
  30                 argc = setup_revisions(argc, argv, &rev, NULL);
  31         if (!rev.diffopt.output_format)
  32                 rev.diffopt.output_format = DIFF_FORMAT_RAW;
  33         result = run_diff_files_cmd(&rev, argc, argv);
  34         if (DIFF_OPT_TST(&rev.diffopt, EXIT_WITH_STATUS))
  35                 return DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES) != 0;
  36         return result;
  37 }