Revision 53f9a3e157dbbc901a02ac2c73346d375e24978c authored by Junio C Hamano on 21 June 2018, 17:00:06 UTC, committed by Junio C Hamano on 21 June 2018, 17:00:06 UTC
Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent 1fb9df7
diff-index.c
#include "cache.h"
#include "config.h"
#include "diff.h"
#include "commit.h"
#include "revision.h"
#include "builtin.h"
#include "submodule.h"
static const char diff_cache_usage[] =
"git diff-index [-m] [--cached] "
"[<common-diff-options>] <tree-ish> [<path>...]"
COMMON_DIFF_OPTIONS_HELP;
int cmd_diff_index(int argc, const char **argv, const char *prefix)
{
struct rev_info rev;
int cached = 0;
int i;
int result;
if (argc == 2 && !strcmp(argv[1], "-h"))
usage(diff_cache_usage);
git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
init_revisions(&rev, prefix);
rev.abbrev = 0;
precompose_argv(argc, argv);
argc = setup_revisions(argc, argv, &rev, NULL);
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (!strcmp(arg, "--cached"))
cached = 1;
else
usage(diff_cache_usage);
}
if (!rev.diffopt.output_format)
rev.diffopt.output_format = DIFF_FORMAT_RAW;
/*
* Make sure there is one revision (i.e. pending object),
* and there is no revision filtering parameters.
*/
if (rev.pending.nr != 1 ||
rev.max_count != -1 || rev.min_age != -1 || rev.max_age != -1)
usage(diff_cache_usage);
if (!cached) {
setup_work_tree();
if (read_cache_preload(&rev.diffopt.pathspec) < 0) {
perror("read_cache_preload");
return -1;
}
} else if (read_cache() < 0) {
perror("read_cache");
return -1;
}
result = run_diff_index(&rev, cached);
UNLEAK(rev);
return diff_result_code(&rev.diffopt, result);
}
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