diff-index.c

   1 #include "cache.h"
   2 #include "diff.h"
   3 #include "commit.h"
   4 #include "revision.h"
   5
   6 static const char diff_cache_usage[] =
   7 "git-diff-index [-m] [--cached] "
   8 "[<common diff options>] <tree-ish> [<path>...]"
   9 COMMON_DIFF_OPTIONS_HELP;
  10
  11 int main(int argc, const char **argv)
  12 {
  13         struct rev_info rev;
  14         int cached = 0;
  15         int i;
  16
  17         git_config(git_diff_config);
  18         init_revisions(&rev);
  19         rev.abbrev = 0;
  20
  21         argc = setup_revisions(argc, argv, &rev, NULL);
  22         for (i = 1; i < argc; i++) {
  23                 const char *arg = argv[i];
  24
  25                 if (!strcmp(arg, "--cached"))
  26                         cached = 1;
  27                 else
  28                         usage(diff_cache_usage);
  29         }
  30         /*
  31          * Make sure there is one revision (i.e. pending object),
  32          * and there is no revision filtering parameters.
  33          */
  34         if (!rev.pending_objects || rev.pending_objects->next ||
  35             rev.max_count != -1 || rev.min_age != -1 || rev.max_age != -1)
  36                 usage(diff_cache_usage);
  37         return run_diff_index(&rev, cached);
  38 }