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/*
* GIT - The information manager from hell
*
* Copyright (C) Linus Torvalds, 2005
*/
#include "builtin.h"
#include "config.h"
#include "diff.h"
#include "diff-merges.h"
#include "commit.h"
#include "preload-index.h"
#include "repository.h"
#include "revision.h"
static const char diff_files_usage[] =
"git diff-files [-q] [-0 | -1 | -2 | -3 | -c | --cc] [<common-diff-options>] [<path>...]"
"\n"
COMMON_DIFF_OPTIONS_HELP;
int cmd_diff_files(int argc, const char **argv, const char *prefix)
{
struct rev_info rev;
int result;
unsigned options = 0;
if (argc == 2 && !strcmp(argv[1], "-h"))
usage(diff_files_usage);
git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
prepare_repo_settings(the_repository);
the_repository->settings.command_requires_full_index = 0;
repo_init_revisions(the_repository, &rev, prefix);
rev.abbrev = 0;
/*
* Consider "intent-to-add" files as new by default, unless
* explicitly specified in the command line or anywhere else.
*/
rev.diffopt.ita_invisible_in_index = 1;
prefix = precompose_argv_prefix(argc, argv, prefix);
argc = setup_revisions(argc, argv, &rev, NULL);
while (1 < argc && argv[1][0] == '-') {
if (!strcmp(argv[1], "--base"))
rev.max_count = 1;
else if (!strcmp(argv[1], "--ours"))
rev.max_count = 2;
else if (!strcmp(argv[1], "--theirs"))
rev.max_count = 3;
else if (!strcmp(argv[1], "-q"))
options |= DIFF_SILENT_ON_REMOVED;
else
usage(diff_files_usage);
argv++; argc--;
}
if (!rev.diffopt.output_format)
rev.diffopt.output_format = DIFF_FORMAT_RAW;
rev.diffopt.rotate_to_strict = 1;
/*
* Make sure there are NO revision (i.e. pending object) parameter,
* rev.max_count is reasonable (0 <= n <= 3), and
* there is no other revision filtering parameters.
*/
if (rev.pending.nr ||
rev.min_age != -1 || rev.max_age != -1 ||
3 < rev.max_count)
usage(diff_files_usage);
/*
* "diff-files --base -p" should not combine merges because it
* was not asked to. "diff-files -c -p" should not densify
* (the user should ask with "diff-files --cc" explicitly).
*/
if (rev.max_count == -1 &&
(rev.diffopt.output_format & DIFF_FORMAT_PATCH))
diff_merges_set_dense_combined_if_unset(&rev);
if (repo_read_index_preload(the_repository, &rev.diffopt.pathspec, 0) < 0)
die_errno("repo_read_index_preload");
run_diff_files(&rev, options);
result = diff_result_code(&rev.diffopt);
release_revisions(&rev);
return result;
}
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