| #define USE_THE_INDEX_COMPATIBILITY_MACROS |
| #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; |
| 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); |
| |
| 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 |
| 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 (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, option); |
| UNLEAK(rev); |
| return diff_result_code(&rev.diffopt, result); |
| } |