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