Provide git_config with a callback-data parameter
[git/git.git] / builtin-diff-index.c
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e74f8f6a 1#include "cache.h"
f92a4465 2#include "diff.h"
e09ad6e1
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3#include "commit.h"
4#include "revision.h"
e8cc9cd9 5#include "builtin.h"
b5af9107 6
4d1f1190 7static const char diff_cache_usage[] =
215a7ad1 8"git-diff-index [-m] [--cached] "
dda2d79a
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9"[<common diff options>] <tree-ish> [<path>...]"
10COMMON_DIFF_OPTIONS_HELP;
c5bac17a 11
a633fca0 12int cmd_diff_index(int argc, const char **argv, const char *prefix)
e74f8f6a 13{
e09ad6e1 14 struct rev_info rev;
e09ad6e1 15 int cached = 0;
6c56c534 16 int i;
41bbf9d5 17 int result;
e74f8f6a 18
a633fca0 19 init_revisions(&rev, prefix);
ef90d6d4 20 git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
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21 rev.abbrev = 0;
22
23 argc = setup_revisions(argc, argv, &rev, NULL);
6c56c534
LT
24 for (i = 1; i < argc; i++) {
25 const char *arg = argv[i];
a6080a0a 26
5c21ac0e 27 if (!strcmp(arg, "--cached"))
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28 cached = 1;
29 else
6b5ee137 30 usage(diff_cache_usage);
e74f8f6a 31 }
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32 if (!rev.diffopt.output_format)
33 rev.diffopt.output_format = DIFF_FORMAT_RAW;
34
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35 /*
36 * Make sure there is one revision (i.e. pending object),
37 * and there is no revision filtering parameters.
38 */
1f1e895f 39 if (rev.pending.nr != 1 ||
e09ad6e1 40 rev.max_count != -1 || rev.min_age != -1 || rev.max_age != -1)
c5bac17a 41 usage(diff_cache_usage);
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42 if (read_cache() < 0) {
43 perror("read_cache");
44 return -1;
45 }
41bbf9d5 46 result = run_diff_index(&rev, cached);
da31b358 47 return diff_result_code(&rev.diffopt, result);
e74f8f6a 48}