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93 lines
2.3 KiB
93 lines
2.3 KiB
/* |
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* Builtin "git commit-commit" |
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* |
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* Copyright (c) 2014 Michael J Gruber <git@drmicha.warpmail.net> |
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* |
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* Based on git-verify-tag |
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*/ |
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#include "cache.h" |
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#include "builtin.h" |
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#include "commit.h" |
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#include "run-command.h" |
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#include <signal.h> |
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#include "parse-options.h" |
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#include "gpg-interface.h" |
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static const char * const verify_commit_usage[] = { |
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N_("git verify-commit [-v|--verbose] <commit>..."), |
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NULL |
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}; |
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static int run_gpg_verify(const unsigned char *sha1, const char *buf, unsigned long size, int verbose) |
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{ |
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struct signature_check signature_check; |
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memset(&signature_check, 0, sizeof(signature_check)); |
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check_commit_signature(lookup_commit(sha1), &signature_check); |
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if (verbose && signature_check.payload) |
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fputs(signature_check.payload, stdout); |
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if (signature_check.gpg_output) |
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fputs(signature_check.gpg_output, stderr); |
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signature_check_clear(&signature_check); |
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return signature_check.result != 'G'; |
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} |
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static int verify_commit(const char *name, int verbose) |
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{ |
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enum object_type type; |
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unsigned char sha1[20]; |
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char *buf; |
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unsigned long size; |
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int ret; |
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if (get_sha1(name, sha1)) |
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return error("commit '%s' not found.", name); |
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buf = read_sha1_file(sha1, &type, &size); |
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if (!buf) |
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return error("%s: unable to read file.", name); |
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if (type != OBJ_COMMIT) |
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return error("%s: cannot verify a non-commit object of type %s.", |
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name, typename(type)); |
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ret = run_gpg_verify(sha1, buf, size, verbose); |
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free(buf); |
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return ret; |
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} |
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static int git_verify_commit_config(const char *var, const char *value, void *cb) |
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{ |
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int status = git_gpg_config(var, value, cb); |
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if (status) |
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return status; |
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return git_default_config(var, value, cb); |
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} |
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int cmd_verify_commit(int argc, const char **argv, const char *prefix) |
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{ |
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int i = 1, verbose = 0, had_error = 0; |
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const struct option verify_commit_options[] = { |
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OPT__VERBOSE(&verbose, N_("print commit contents")), |
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OPT_END() |
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}; |
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git_config(git_verify_commit_config, NULL); |
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argc = parse_options(argc, argv, prefix, verify_commit_options, |
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verify_commit_usage, PARSE_OPT_KEEP_ARGV0); |
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if (argc <= i) |
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usage_with_options(verify_commit_usage, verify_commit_options); |
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/* sometimes the program was terminated because this signal |
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* was received in the process of writing the gpg input: */ |
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signal(SIGPIPE, SIG_IGN); |
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while (i < argc) |
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if (verify_commit(argv[i++], verbose)) |
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had_error = 1; |
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return had_error; |
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}
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