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1 | #include "cache.h" | |
2 | #include "diff.h" | |
3 | #include "commit.h" | |
4 | #include "revision.h" | |
5 | #include "builtin.h" | |
6 | ||
7 | static const char diff_cache_usage[] = | |
8 | "git-diff-index [-m] [--cached] " | |
9 | "[<common diff options>] <tree-ish> [<path>...]" | |
10 | COMMON_DIFF_OPTIONS_HELP; | |
11 | ||
12 | int cmd_diff_index(int argc, const char **argv, const char *prefix) | |
13 | { | |
14 | struct rev_info rev; | |
15 | int cached = 0; | |
16 | int i; | |
17 | int result; | |
18 | ||
19 | init_revisions(&rev, prefix); | |
20 | git_config(git_default_config); /* no "diff" UI options */ | |
21 | rev.abbrev = 0; | |
22 | ||
23 | argc = setup_revisions(argc, argv, &rev, NULL); | |
24 | for (i = 1; i < argc; i++) { | |
25 | const char *arg = argv[i]; | |
26 | ||
27 | if (!strcmp(arg, "--cached")) | |
28 | cached = 1; | |
29 | else | |
30 | usage(diff_cache_usage); | |
31 | } | |
32 | if (!rev.diffopt.output_format) | |
33 | rev.diffopt.output_format = DIFF_FORMAT_RAW; | |
34 | ||
35 | /* | |
36 | * Make sure there is one revision (i.e. pending object), | |
37 | * and there is no revision filtering parameters. | |
38 | */ | |
39 | if (rev.pending.nr != 1 || | |
40 | rev.max_count != -1 || rev.min_age != -1 || rev.max_age != -1) | |
41 | usage(diff_cache_usage); | |
42 | if (read_cache() < 0) { | |
43 | perror("read_cache"); | |
44 | return -1; | |
45 | } | |
46 | result = run_diff_index(&rev, cached); | |
47 | return rev.diffopt.exit_with_status ? rev.diffopt.has_changes: result; | |
48 | } |