blame: output porcelain "previous" header for each file
[git] / builtin / verify-tag.c
1 /*
2  * Builtin "git verify-tag"
3  *
4  * Copyright (c) 2007 Carlos Rica <jasampler@gmail.com>
5  *
6  * Based on git-verify-tag.sh
7  */
8 #include "cache.h"
9 #include "builtin.h"
10 #include "tag.h"
11 #include "run-command.h"
12 #include <signal.h>
13 #include "parse-options.h"
14 #include "gpg-interface.h"
15
16 static const char * const verify_tag_usage[] = {
17                 N_("git verify-tag [-v | --verbose] <tag>..."),
18                 NULL
19 };
20
21 static int git_verify_tag_config(const char *var, const char *value, void *cb)
22 {
23         int status = git_gpg_config(var, value, cb);
24         if (status)
25                 return status;
26         return git_default_config(var, value, cb);
27 }
28
29 int cmd_verify_tag(int argc, const char **argv, const char *prefix)
30 {
31         int i = 1, verbose = 0, had_error = 0;
32         unsigned flags = 0;
33         const struct option verify_tag_options[] = {
34                 OPT__VERBOSE(&verbose, N_("print tag contents")),
35                 OPT_BIT(0, "raw", &flags, N_("print raw gpg status output"), GPG_VERIFY_RAW),
36                 OPT_END()
37         };
38
39         git_config(git_verify_tag_config, NULL);
40
41         argc = parse_options(argc, argv, prefix, verify_tag_options,
42                              verify_tag_usage, PARSE_OPT_KEEP_ARGV0);
43         if (argc <= i)
44                 usage_with_options(verify_tag_usage, verify_tag_options);
45
46         if (verbose)
47                 flags |= GPG_VERIFY_VERBOSE;
48
49         while (i < argc) {
50                 unsigned char sha1[20];
51                 const char *name = argv[i++];
52                 if (get_sha1(name, sha1))
53                         had_error = !!error("tag '%s' not found.", name);
54                 else if (gpg_verify_tag(sha1, name, flags))
55                         had_error = 1;
56         }
57         return had_error;
58 }