builtin/merge-ours.c

   1 /*
   2  * Implementation of git-merge-ours.sh as builtin
   3  *
   4  * Copyright (c) 2007 Thomas Harning Jr
   5  * Original:
   6  * Original Copyright (c) 2005 Junio C Hamano
   7  *
   8  * Pretend we resolved the heads, but declare our tree trumps everybody else.
   9  */
  10 #include "git-compat-util.h"
  11 #include "builtin.h"
  12 #include "diff.h"
  13 #include "repository.h"
  14
  15 static const char builtin_merge_ours_usage[] =
  16         "git merge-ours <base>... -- HEAD <remote>...";
  17
  18 int cmd_merge_ours(int argc, const char **argv, const char *prefix UNUSED)
  19 {
  20         if (argc == 2 && !strcmp(argv[1], "-h"))
  21                 usage(builtin_merge_ours_usage);
  22
  23         /*
  24          * The contents of the current index becomes the tree we
  25          * commit.  The index must match HEAD, or this merge cannot go
  26          * through.
  27          */
  28         if (repo_read_index(the_repository) < 0)
  29                 die_errno("read_cache failed");
  30         if (index_differs_from(the_repository, "HEAD", NULL, 0))
  31                 return 2;
  32         return 0;
  33 }