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
  14 static const char builtin_merge_ours_usage[] =
  15         "git merge-ours <base>... -- HEAD <remote>...";
  16
  17 int cmd_merge_ours(int argc, const char **argv, const char *prefix)
  18 {
  19         if (argc == 2 && !strcmp(argv[1], "-h"))
  20                 usage(builtin_merge_ours_usage);
  21
  22         /*
  23          * The contents of the current index becomes the tree we
  24          * commit.  The index must match HEAD, or this merge cannot go
  25          * through.
  26          */
  27         if (repo_read_index(the_repository) < 0)
  28                 die_errno("read_cache failed");
  29         if (index_differs_from(the_repository, "HEAD", NULL, 0))
  30                 return 2;
  31         return 0;
  32 }