summaryrefslogtreecommitdiff
path: root/builtin-diff-files.c
blob: 4afc8724e71449667ce22ac8efd0910b7a57ef42 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
/*
 * GIT - The information manager from hell
 *
 * Copyright (C) Linus Torvalds, 2005
 */
#include "cache.h"
#include "diff.h"
#include "commit.h"
#include "revision.h"
#include "builtin.h"

static const char diff_files_usage[] =
"git-diff-files [-q] [-0/-1/2/3 |-c|--cc|--no-index] [<common diff options>] [<path>...]"
COMMON_DIFF_OPTIONS_HELP;

int cmd_diff_files(int argc, const char **argv, const char *prefix)
{
	struct rev_info rev;
	int nongit = 0;
	int result;

	prefix = setup_git_directory_gently(&nongit);
	init_revisions(&rev, prefix);
	git_config(git_default_config); /* no "diff" UI options */
	rev.abbrev = 0;

	if (!setup_diff_no_index(&rev, argc, argv, nongit, prefix))
		argc = 0;
	else
		argc = setup_revisions(argc, argv, &rev, NULL);
	if (!rev.diffopt.output_format)
		rev.diffopt.output_format = DIFF_FORMAT_RAW;
	result = run_diff_files_cmd(&rev, argc, argv);
	if (DIFF_OPT_TST(&rev.diffopt, EXIT_WITH_STATUS))
		return DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES) != 0;
	if (rev.diffopt.output_format & DIFF_FORMAT_CHECKDIFF)
		return DIFF_OPT_TST(&rev.diffopt, CHECK_FAILED) != 0;
	return result;
}