2 * Builtin "git commit-commit"
4 * Copyright (c) 2014 Michael J Gruber <git@drmicha.warpmail.net>
6 * Based on git-verify-tag
11 #include "run-command.h"
13 #include "parse-options.h"
14 #include "gpg-interface.h"
16 static const char * const verify_commit_usage[] = {
17 N_("git verify-commit [-v|--verbose] <commit>..."),
21 static int run_gpg_verify(const unsigned char *sha1, const char *buf, unsigned long size, int verbose)
23 struct signature_check signature_check;
25 memset(&signature_check, 0, sizeof(signature_check));
27 check_commit_signature(lookup_commit(sha1), &signature_check);
29 if (verbose && signature_check.payload)
30 fputs(signature_check.payload, stdout);
32 if (signature_check.gpg_output)
33 fputs(signature_check.gpg_output, stderr);
35 signature_check_clear(&signature_check);
36 return signature_check.result != 'G';
39 static int verify_commit(const char *name, int verbose)
41 enum object_type type;
42 unsigned char sha1[20];
47 if (get_sha1(name, sha1))
48 return error("commit '%s' not found.", name);
50 buf = read_sha1_file(sha1, &type, &size);
52 return error("%s: unable to read file.", name);
53 if (type != OBJ_COMMIT)
54 return error("%s: cannot verify a non-commit object of type %s.",
55 name, typename(type));
57 ret = run_gpg_verify(sha1, buf, size, verbose);
63 static int git_verify_commit_config(const char *var, const char *value, void *cb)
65 int status = git_gpg_config(var, value, cb);
68 return git_default_config(var, value, cb);
71 int cmd_verify_commit(int argc, const char **argv, const char *prefix)
73 int i = 1, verbose = 0, had_error = 0;
74 const struct option verify_commit_options[] = {
75 OPT__VERBOSE(&verbose, N_("print commit contents")),
79 git_config(git_verify_commit_config, NULL);
81 argc = parse_options(argc, argv, prefix, verify_commit_options,
82 verify_commit_usage, PARSE_OPT_KEEP_ARGV0);
84 usage_with_options(verify_commit_usage, verify_commit_options);
86 /* sometimes the program was terminated because this signal
87 * was received in the process of writing the gpg input: */
88 signal(SIGPIPE, SIG_IGN);
90 if (verify_commit(argv[i++], verbose))