freshlybakedca.ke
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1#define USE_THE_REPOSITORY_VARIABLE
2#define DISABLE_SIGN_COMPARE_WARNINGS
3
4#include "builtin.h"
5#include "config.h"
6#include "diff.h"
7#include "diff-merges.h"
8#include "commit.h"
9#include "preload-index.h"
10#include "revision.h"
11#include "setup.h"
12
13static const char diff_cache_usage[] =
14"git diff-index [-m] [--cached] [--merge-base] "
15"[<common-diff-options>] <tree-ish> [<path>...]"
16"\n"
17COMMON_DIFF_OPTIONS_HELP;
18
19int cmd_diff_index(int argc,
20 const char **argv,
21 const char *prefix,
22 struct repository *repo UNUSED)
23{
24 struct rev_info rev;
25 unsigned int option = 0;
26 int i;
27 int result;
28
29 show_usage_if_asked(argc, argv, diff_cache_usage);
30
31 repo_config(the_repository, git_diff_basic_config, NULL); /* no "diff" UI options */
32
33 prepare_repo_settings(the_repository);
34 the_repository->settings.command_requires_full_index = 0;
35
36 repo_init_revisions(the_repository, &rev, prefix);
37 rev.abbrev = 0;
38 prefix = precompose_argv_prefix(argc, argv, prefix);
39
40 /*
41 * We need (some of) diff for merges options (e.g., --cc), and we need
42 * to avoid conflict with our own meaning of "-m".
43 */
44 diff_merges_suppress_m_parsing();
45
46 argc = setup_revisions(argc, argv, &rev, NULL);
47 for (i = 1; i < argc; i++) {
48 const char *arg = argv[i];
49
50 if (!strcmp(arg, "--cached"))
51 option |= DIFF_INDEX_CACHED;
52 else if (!strcmp(arg, "--merge-base"))
53 option |= DIFF_INDEX_MERGE_BASE;
54 else if (!strcmp(arg, "-m"))
55 rev.match_missing = 1;
56 else
57 usage(diff_cache_usage);
58 }
59 if (!rev.diffopt.output_format)
60 rev.diffopt.output_format = DIFF_FORMAT_RAW;
61
62 rev.diffopt.rotate_to_strict = 1;
63
64 /*
65 * Make sure there is one revision (i.e. pending object),
66 * and there is no revision filtering parameters.
67 */
68 if (rev.pending.nr != 1 ||
69 rev.max_count != -1 || rev.min_age != -1 || rev.max_age != -1)
70 usage(diff_cache_usage);
71 if (!(option & DIFF_INDEX_CACHED)) {
72 setup_work_tree();
73 if (repo_read_index_preload(the_repository, &rev.diffopt.pathspec, 0) < 0) {
74 perror("repo_read_index_preload");
75 return -1;
76 }
77 } else if (repo_read_index(the_repository) < 0) {
78 perror("repo_read_index");
79 return -1;
80 }
81 run_diff_index(&rev, option);
82 result = diff_result_code(&rev);
83 release_revisions(&rev);
84 return result;
85}