зеркало из https://github.com/microsoft/git.git
78 строки
2.0 KiB
C
78 строки
2.0 KiB
C
#include "cache.h"
|
|
#include "config.h"
|
|
#include "diff.h"
|
|
#include "diff-merges.h"
|
|
#include "commit.h"
|
|
#include "revision.h"
|
|
#include "builtin.h"
|
|
#include "setup.h"
|
|
#include "submodule.h"
|
|
|
|
static const char diff_cache_usage[] =
|
|
"git diff-index [-m] [--cached] [--merge-base] "
|
|
"[<common-diff-options>] <tree-ish> [<path>...]"
|
|
"\n"
|
|
COMMON_DIFF_OPTIONS_HELP;
|
|
|
|
int cmd_diff_index(int argc, const char **argv, const char *prefix)
|
|
{
|
|
struct rev_info rev;
|
|
unsigned int option = 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 */
|
|
repo_init_revisions(the_repository, &rev, prefix);
|
|
rev.abbrev = 0;
|
|
prefix = precompose_argv_prefix(argc, argv, prefix);
|
|
|
|
/*
|
|
* We need (some of) diff for merges options (e.g., --cc), and we need
|
|
* to avoid conflict with our own meaning of "-m".
|
|
*/
|
|
diff_merges_suppress_m_parsing();
|
|
|
|
argc = setup_revisions(argc, argv, &rev, NULL);
|
|
for (i = 1; i < argc; i++) {
|
|
const char *arg = argv[i];
|
|
|
|
if (!strcmp(arg, "--cached"))
|
|
option |= DIFF_INDEX_CACHED;
|
|
else if (!strcmp(arg, "--merge-base"))
|
|
option |= DIFF_INDEX_MERGE_BASE;
|
|
else if (!strcmp(arg, "-m"))
|
|
rev.match_missing = 1;
|
|
else
|
|
usage(diff_cache_usage);
|
|
}
|
|
if (!rev.diffopt.output_format)
|
|
rev.diffopt.output_format = DIFF_FORMAT_RAW;
|
|
|
|
rev.diffopt.rotate_to_strict = 1;
|
|
|
|
/*
|
|
* 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 (!(option & DIFF_INDEX_CACHED)) {
|
|
setup_work_tree();
|
|
if (repo_read_index_preload(the_repository, &rev.diffopt.pathspec, 0) < 0) {
|
|
perror("repo_read_index_preload");
|
|
return -1;
|
|
}
|
|
} else if (repo_read_index(the_repository) < 0) {
|
|
perror("repo_read_index");
|
|
return -1;
|
|
}
|
|
result = run_diff_index(&rev, option);
|
|
result = diff_result_code(&rev.diffopt, result);
|
|
release_revisions(&rev);
|
|
return result;
|
|
}
|