Merge branch 'master-for-junio' of git://repo.or.cz/git/fastimport; branch 'maint'
[git] / 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|-n|--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
21         prefix = setup_git_directory_gently(&nongit);
22         init_revisions(&rev, prefix);
23         git_config(git_default_config); /* no "diff" UI options */
24         rev.abbrev = 0;
25
26         if (!setup_diff_no_index(&rev, argc, argv, nongit, prefix))
27                 argc = 0;
28         else
29                 argc = setup_revisions(argc, argv, &rev, NULL);
30         if (!rev.diffopt.output_format)
31                 rev.diffopt.output_format = DIFF_FORMAT_RAW;
32         return run_diff_files_cmd(&rev, argc, argv);
33 }