Example #1
0
int main(int argc, char** argv)
{
#ifdef OS_Darwin
    struct rlimit rlp;
    if (getrlimit(RLIMIT_NOFILE, &rlp) == 0) {
        if (rlp.rlim_cur < 1000) {
            rlp.rlim_cur = 1000;
            setrlimit(RLIMIT_NOFILE, &rlp);
        }
    }
#endif

    {
        pthread_attr_t attr;
        pthread_attr_init(&attr);
        pthread_attr_getstacksize(&attr, &defaultStackSize);
        pthread_attr_destroy(&attr);
        if (defaultStackSize < 1024 * 1024 * 4) { // 4 megs should be enough for everyone right?
            defaultStackSize = 1024 * 1024 * 4;
        }
    }

    Rct::findExecutablePath(*argv);

    struct option opts[] = {
        { "help", no_argument, 0, 'h' },
        { "version", no_argument, 0, 2 },
        { "include-path", required_argument, 0, 'I' },
        { "isystem", required_argument, 0, 's' },
        { "define", required_argument, 0, 'D' },
        { "log-file", required_argument, 0, 'L' },
        { "setenv", required_argument, 0, 'e' },
        { "no-Wall", no_argument, 0, 'W' },
        { "Weverything", no_argument, 0, 'u' },
        { "cache-AST", required_argument, 0, 'A' },
        { "verbose", no_argument, 0, 'v' },
        { "job-count", required_argument, 0, 'j' },
        { "header-error-job-count", required_argument, 0, 'H' },
        { "test", required_argument, 0, 't' },
        { "test-timeout", required_argument, 0, 'z' },
        { "clean-slate", no_argument, 0, 'C' },
        { "disable-sighandler", no_argument, 0, 'x' },
        { "silent", no_argument, 0, 'S' },
        { "exclude-filter", required_argument, 0, 'X' },
        { "socket-file", required_argument, 0, 'n' },
        { "config", required_argument, 0, 'c' },
        { "no-rc", no_argument, 0, 'N' },
        { "data-dir", required_argument, 0, 'd' },
        { "ignore-printf-fixits", no_argument, 0, 'F' },
        { "no-unlimited-errors", no_argument, 0, 'f' },
        { "block-argument", required_argument, 0, 'G' },
        { "no-spell-checking", no_argument, 0, 'l' },
        { "large-by-value-copy", required_argument, 0, 'r' },
        { "disallow-multiple-sources", no_argument, 0, 'm' },
        { "no-startup-project", no_argument, 0, 'o' },
        { "no-no-unknown-warnings-option", no_argument, 0, 'Y' },
        { "ignore-compiler", required_argument, 0, 'b' },
        { "watch-system-paths", no_argument, 0, 'w' },
        { "rp-visit-file-timeout", required_argument, 0, 'Z' },
        { "rp-indexer-message-timeout", required_argument, 0, 'T' },
        { "rp-connect-timeout", required_argument, 0, 'O' },
        { "rp-connect-attempts", required_argument, 0, 3 },
        { "rp-nice-value", required_argument, 0, 'a' },
        { "thread-stack-size", required_argument, 0, 'k' },
        { "suspend-rp-on-crash", no_argument, 0, 'q' },
        { "rp-log-to-syslog", no_argument, 0, 7 },
        { "start-suspended", no_argument, 0, 'Q' },
        { "separate-debug-and-release", no_argument, 0, 'E' },
        { "max-crash-count", required_argument, 0, 'K' },
        { "completion-cache-size", required_argument, 0, 'i' },
        { "completion-no-filter", no_argument, 0, 8 },
        { "extra-compilers", required_argument, 0, 'U' },
        { "allow-Wpedantic", no_argument, 0, 'P' },
        { "enable-compiler-manager", no_argument, 0, 'R' },
        { "enable-NDEBUG", no_argument, 0, 'g' },
        { "progress", no_argument, 0, 'p' },
        { "max-file-map-cache-size", required_argument, 0, 'y' },
#ifdef OS_FreeBSD
        { "filemanager-watch", no_argument, 0, 'M' },
#else
        { "no-filemanager-watch", no_argument, 0, 'M' },
#endif
        { "no-file-lock", no_argument, 0, 13 },
        { "pch-enabled", no_argument, 0, 14 },
        { "no-filesystem-watcher", no_argument, 0, 'B' },
        { "arg-transform", required_argument, 0, 'V' },
        { "no-comments", no_argument, 0, 1 },
#ifdef OS_Darwin
        { "launchd", no_argument, 0, 4 },
#endif
        { "inactivity-timeout", required_argument, 0, 5 },
        { "daemon", no_argument, 0, 6 },
        { "log-file-log-level", required_argument, 0, 9 },
        { "watch-sources-only", no_argument, 0, 10 },
        { "debug-locations", no_argument, 0, 11 },
        { "tcp-port", required_argument, 0, 12 },
        { 0, 0, 0, 0 }
    };
    const String shortOptions = Rct::shortOptions(opts);
    if (getenv("RTAGS_DUMP_UNUSED")) {
        String unused;
        for (int i=0; i<26; ++i) {
            if (!shortOptions.contains('a' + i))
                unused.append('a' + i);
            if (!shortOptions.contains('A' + i))
                unused.append('A' + i);
        }
        printf("Unused: %s\n", unused.constData());
        for (int i=0; opts[i].name; ++i) {
            if (opts[i].name) {
                if (!opts[i].val) {
                    printf("No shortoption for %s\n", opts[i].name);
                } else if (opts[i].name[0] != opts[i].val) {
                    printf("Not ideal option for %s|%c\n", opts[i].name, opts[i].val);
                }
            }
        }
        return 0;
    }

    bool daemon = false;
    List<String> argCopy;
    List<char*> argList;
    {
        bool norc = false;
        Path rcfile = Path::home() + ".rdmrc";
        opterr = 0;

        StackBuffer<128, char*> originalArgv(argc);
        memcpy(originalArgv, argv, sizeof(char*) * argc);
        /* getopt will molest argv by moving pointers around when it sees
         * fit. Their idea of an optional argument is different from ours so we
         * have to take a copy of argv before they get their sticky fingers all
         * over it.
         *
         * We think this should be okay for an optional argument:
         * -s something
         *
         * They only populate optarg if you do:
         * -ssomething.
         *
         * We don't want to copy argv into argList before processing rc files
         * since command line args should take precedence over things in rc
         * files.
         *
         */

        while (true) {
            const int c = getopt_long(argc, argv, shortOptions.constData(), opts, 0);
            if (c == -1)
                break;
            switch (c) {
            case 'N':
                norc = true;
                break;
            case 'c':
                rcfile = optarg;
                break;
            default:
                break;
            }
        }
        opterr = 1;
        argList.append(argv[0]);
        if (!norc) {
            String rc = Path("/etc/rdmrc").readAll();
            if (!rc.isEmpty()) {
                for (const String& s : rc.split('\n')) {
                    if (!s.isEmpty() && !s.startsWith('#'))
                        argCopy += s.split(' ');
                }
            }
            if (!rcfile.isEmpty()) {
                rc = rcfile.readAll();
                if (!rc.isEmpty()) {
                    for (const String& s : rc.split('\n')) {
                        if (!s.isEmpty() && !s.startsWith('#'))
                            argCopy += s.split(' ');
                    }
                }
            }
            const int s = argCopy.size();
            for (int i=0; i<s; ++i) {
                String &arg = argCopy.at(i);
                if (!arg.isEmpty())
                    argList.append(arg.data());
            }
        }

        for (int i=1; i<argc; ++i)
            argList.append(originalArgv[i]);

        optind = 1;
    }

    Server::Options serverOpts;
    serverOpts.threadStackSize = defaultStackSize;
    serverOpts.socketFile = String::format<128>("%s.rdm", Path::home().constData());
    serverOpts.jobCount = std::max(2, ThreadPool::idealThreadCount());
    serverOpts.headerErrorJobCount = -1;
    serverOpts.rpVisitFileTimeout = DEFAULT_RP_VISITFILE_TIMEOUT;
    serverOpts.rpIndexDataMessageTimeout = DEFAULT_RP_INDEXER_MESSAGE_TIMEOUT;
    serverOpts.rpConnectTimeout = DEFAULT_RP_CONNECT_TIMEOUT;
    serverOpts.rpConnectAttempts = DEFAULT_RP_CONNECT_ATTEMPTS;
    serverOpts.maxFileMapScopeCacheSize = DEFAULT_RDM_MAX_FILE_MAP_CACHE_SIZE;
    serverOpts.rpNiceValue = INT_MIN;
    serverOpts.options = Server::Wall|Server::SpellChecking;
    serverOpts.maxCrashCount = DEFAULT_MAX_CRASH_COUNT;
    serverOpts.completionCacheSize = DEFAULT_COMPLETION_CACHE_SIZE;
#ifdef OS_FreeBSD
    serverOpts.options |= Server::NoFileManagerWatch;
#endif
// #ifndef NDEBUG
//     serverOpts.options |= Server::SuspendRPOnCrash;
// #endif
    serverOpts.excludeFilters = String(EXCLUDEFILTER_DEFAULT).split(';');
    serverOpts.dataDir = String::format<128>("%s.rtags", Path::home().constData());

    const char *logFile = 0;
    Flags<LogFileFlag> logFlags = DontRotate;
    LogLevel logLevel(LogLevel::Error);
    LogLevel logFileLogLevel(LogLevel::Error);
    bool sigHandler = true;
    assert(Path::home().endsWith('/'));
    int argCount = argList.size();
    char **args = argList.data();
    bool defaultDataDir = true;
    int inactivityTimeout = 0;

    while (true) {
        const int c = getopt_long(argCount, args, shortOptions.constData(), opts, 0);
        if (c == -1)
            break;
        switch (c) {
        case 'N':
        case 'c':
            // ignored
            break;
        case 'S':
            logLevel = LogLevel::None;
            break;
        case 'X':
            serverOpts.excludeFilters += String(optarg).split(';');
            break;
        case 'G':
            serverOpts.blockedArguments << optarg;
            break;
        case 1:
            serverOpts.options |= Server::NoComments;
            break;
        case 10:
            serverOpts.options |= Server::WatchSourcesOnly;
            break;
        case 11:
            if (!strcmp(optarg, "clear") || !strcmp(optarg, "none")) {
                serverOpts.debugLocations.clear();
            } else {
                serverOpts.debugLocations << optarg;
            }
            break;
        case 12:
            serverOpts.tcpPort = atoi(optarg);
            if (!serverOpts.tcpPort) {
                fprintf(stderr, "Invalid port %s for --tcp-port\n", optarg);
                return 1;
            }
            break;
        case 13:
            serverOpts.options |= Server::NoFileLock;
            break;
        case 14:
            serverOpts.options |= Server::PCHEnabled;
            break;
        case 2:
            fprintf(stdout, "%s\n", RTags::versionString().constData());
            return 0;
        case 6:
            daemon = true;
            logLevel = LogLevel::None;
            break;
        case 9:
            if (!strcasecmp(optarg, "verbose-debug")) {
                logFileLogLevel = LogLevel::VerboseDebug;
            } else if (!strcasecmp(optarg, "debug")) {
                logFileLogLevel = LogLevel::Debug;
            } else if (!strcasecmp(optarg, "warning")) {
                logFileLogLevel = LogLevel::Warning;
            } else if (!strcasecmp(optarg, "error")) {
                logFileLogLevel = LogLevel::Error;
            } else {
                fprintf(stderr, "Unknown log level: %s options are error, warning, debug or verbose-debug\n",
                        optarg);
                return 1;
            }
            break;
        case 'U':
            serverOpts.extraCompilers.append(std::regex(optarg));
            break;
        case 'E':
            serverOpts.options |= Server::SeparateDebugAndRelease;
            break;
        case 'g':
            serverOpts.options |= Server::EnableNDEBUG;
            break;
        case 'Q':
            serverOpts.options |= Server::StartSuspended;
            break;
        case 'Z':
            serverOpts.rpVisitFileTimeout = atoi(optarg);
            if (serverOpts.rpVisitFileTimeout < 0) {
                fprintf(stderr, "Invalid argument to -Z %s\n", optarg);
                return 1;
            }
            if (!serverOpts.rpVisitFileTimeout)
                serverOpts.rpVisitFileTimeout = -1;
            break;
        case 'y':
            serverOpts.maxFileMapScopeCacheSize = atoi(optarg);
            if (serverOpts.maxFileMapScopeCacheSize <= 0) {
                fprintf(stderr, "Invalid argument to -y %s\n", optarg);
                return 1;
            }
            break;
        case 'O':
            serverOpts.rpConnectTimeout = atoi(optarg);
            if (serverOpts.rpConnectTimeout < 0) {
                fprintf(stderr, "Invalid argument to -O %s\n", optarg);
                return 1;
            }
            break;
        case 3:
            serverOpts.rpConnectAttempts = atoi(optarg);
            if (serverOpts.rpConnectAttempts <= 0) {
                fprintf(stderr, "Invalid argument to --rp-connect-attempts %s\n", optarg);
                return 1;
            }
            break;
        case 'k':
            serverOpts.threadStackSize = atoi(optarg);
            if (serverOpts.threadStackSize < 0) {
                fprintf(stderr, "Invalid argument to -k %s\n", optarg);
                return 1;
            }
            break;
        case 'b':
            serverOpts.ignoredCompilers.insert(Path::resolved(optarg));
            break;
        case 't': {
            Path test(optarg);
            if (!test.resolve() || !test.isFile()) {
                fprintf(stderr, "%s doesn't seem to be a file\n", optarg);
                return 1;
            }
            serverOpts.tests += test;
            break; }
        case 'z':
            serverOpts.testTimeout = atoi(optarg);
            if (serverOpts.testTimeout <= 0) {
                fprintf(stderr, "Invalid argument to -z %s\n", optarg);
                return 1;
            }
            break;
        case 'n':
            serverOpts.socketFile = optarg;
            break;
        case 'd':
            defaultDataDir = false;
            serverOpts.dataDir = String::format<128>("%s", Path::resolved(optarg).constData());
            break;
        case 'h':
            usage(stdout);
            return 0;
        case 'Y':
            serverOpts.options |= Server::NoNoUnknownWarningsOption;
            break;
        case 'p':
            serverOpts.options |= Server::Progress;
            break;
        case 'R':
            serverOpts.options |= Server::EnableCompilerManager;
            break;
        case 'm':
            serverOpts.options |= Server::DisallowMultipleSources;
            break;
        case 'o':
            serverOpts.options |= Server::NoStartupCurrentProject;
            break;
        case 'w':
            serverOpts.options |= Server::WatchSystemPaths;
            break;
        case 'q':
            serverOpts.options |= Server::SuspendRPOnCrash;
            break;
        case 'M':
#ifdef OS_FreeBSD
            serverOpts.options &= ~Server::NoFileManagerWatch;
#else
            serverOpts.options |= Server::NoFileManagerWatch;
#endif
            break;
        case 'B':
            serverOpts.options |= Server::NoFileSystemWatch;
            break;
        case 'V':
            serverOpts.argTransform = Process::findCommand(optarg);
            if (strlen(optarg) && serverOpts.argTransform.isEmpty()) {
                fprintf(stderr, "Invalid argument to -V. Can't resolve %s", optarg);
                return 1;
            }

            break;
      case 'F':
            serverOpts.options |= Server::IgnorePrintfFixits;
            break;
        case 'f':
            serverOpts.options |= Server::NoUnlimitedErrors;
            break;
        case 'l':
            serverOpts.options &= ~Server::SpellChecking;
            break;
        case 'W':
            serverOpts.options &= ~Server::Wall;
            break;
        case 'u':
            serverOpts.options |= Server::Weverything;
            break;
        case 'P':
            serverOpts.options |= Server::AllowPedantic;
            break;
        case 'C':
            serverOpts.options |= Server::ClearProjects;
            break;
        case 'e':
            putenv(optarg);
            break;
        case 'x':
            sigHandler = false;
            break;
        case 'K':
            serverOpts.maxCrashCount = atoi(optarg);
            if (serverOpts.maxCrashCount <= 0) {
                fprintf(stderr, "Invalid argument to -K %s\n", optarg);
                return 1;
            }
            break;
        case 'i':
            serverOpts.completionCacheSize = atoi(optarg);
            if (serverOpts.completionCacheSize <= 0) {
                fprintf(stderr, "Invalid argument to -i %s\n", optarg);
                return 1;
            }
            break;
        case 'T':
            serverOpts.rpIndexDataMessageTimeout = atoi(optarg);
            if (serverOpts.rpIndexDataMessageTimeout <= 0) {
                fprintf(stderr, "Can't parse argument to -T %s.\n", optarg);
                return 1;
            }
            break;
        case 'a': {
            bool ok;
            serverOpts.rpNiceValue = String(optarg).toLong(&ok);
            if (!ok) {
                fprintf(stderr, "Can't parse argument to -a %s.\n", optarg);
                return 1;
            }
            break; }
        case 'j':
            serverOpts.jobCount = atoi(optarg);
            if (serverOpts.jobCount < 0) {
                fprintf(stderr, "Can't parse argument to -j %s. -j must be a positive integer.\n", optarg);
                return 1;
            }
            break;
        case 'H':
            serverOpts.headerErrorJobCount = atoi(optarg);
            if (serverOpts.headerErrorJobCount < 0) {
                fprintf(stderr, "Can't parse argument to -H %s. -J must be a positive integer.\n", optarg);
                return 1;
            }
            break;
        case 'r': {
            int large = atoi(optarg);
            if (large <= 0) {
                fprintf(stderr, "Can't parse argument to -r %s\n", optarg);
                return 1;
            }
            serverOpts.defaultArguments.append("-Wlarge-by-value-copy=" + String(optarg)); // ### not quite working
            break; }
        case 'D': {
            const char *eq = strchr(optarg, '=');
            Source::Define def;
            if (!eq) {
                def.define = optarg;
            } else {
                def.define = String(optarg, eq - optarg);
                def.value = eq + 1;
            }
            serverOpts.defines.append(def);
            break; }
        case 'I':
            serverOpts.includePaths.append(Source::Include(Source::Include::Type_Include, Path::resolved(optarg)));
            break;
        case 's':
            serverOpts.includePaths.append(Source::Include(Source::Include::Type_System, Path::resolved(optarg)));
            break;
        case 'L':
            logFile = optarg;
            logLevel = LogLevel::None;
            break;
        case 'v':
            if (logLevel != LogLevel::None)
                ++logLevel;
            break;
#ifdef OS_Darwin
        case 4:
            serverOpts.options |= Server::Launchd;
            break;
#endif
        case 5:
            inactivityTimeout = atoi(optarg); // seconds.
            if (inactivityTimeout <= 0) {
                fprintf(stderr, "Invalid argument to --inactivity-timeout %s\n", optarg);
                return 1;
            }
            break;
        case 7:
            serverOpts.options |= Server::RPLogToSyslog;
            break;
        case 8:
            serverOpts.options |= Server::CompletionsNoFilter;
            break;
        case '?': {
            fprintf(stderr, "Run rdm --help for help\n");
            return 1; }
        }
    }
    if (optind < argCount) {
        fprintf(stderr, "rdm: unexpected option -- '%s'\n", args[optind]);
        return 1;
    }

    if (daemon) {
        switch (fork()) {
        case -1:
            fprintf(stderr, "Failed to fork (%d) %s\n", errno, strerror(errno));
            return 1;
        case 0:
            setsid();
            switch (fork()) {
            case -1:
                fprintf(stderr, "Failed to fork (%d) %s\n", errno, strerror(errno));
                return 1;
            case 0:
                break;
            default:
                return 0;
            }
            break;
        default:
            return 0;
        }
    }

    if (serverOpts.headerErrorJobCount == -1) {
        serverOpts.headerErrorJobCount = std::max(1, serverOpts.jobCount / 2);
    } else {
        serverOpts.headerErrorJobCount = std::min(serverOpts.headerErrorJobCount, serverOpts.jobCount);
    }

    if (sigHandler) {
        signal(SIGSEGV, sigSegvHandler);
        signal(SIGILL, sigSegvHandler);
        signal(SIGABRT, sigSegvHandler);
    }

    // Shell-expand logFile
    Path logPath(logFile); logPath.resolve();

    if (!initLogging(argv[0], LogStderr, logLevel, logPath.constData(), logFlags, logFileLogLevel)) {
        fprintf(stderr, "Can't initialize logging with %d %s %s\n",
                logLevel.toInt(), logFile ? logFile : "", logFlags.toString().constData());
        return 1;
    }

#ifdef OS_Darwin
    if (serverOpts.options & Server::Launchd) {
        // Clamp inactivity timeout. launchd starts to worry if the
        // process runs for less than 10 seconds.

        static const int MIN_INACTIVITY_TIMEOUT = 15; // includes
                                                      // fudge factor.

        if (inactivityTimeout < MIN_INACTIVITY_TIMEOUT) {
            inactivityTimeout = MIN_INACTIVITY_TIMEOUT;
            fprintf(stderr, "launchd mode - clamped inactivity timeout to %d to avoid launchd warnings.\n", inactivityTimeout);
        }
    }
#endif

    EventLoop::SharedPtr loop(new EventLoop);
    loop->init(EventLoop::MainEventLoop|EventLoop::EnableSigIntHandler|EventLoop::EnableSigTermHandler);

    std::shared_ptr<Server> server(new Server);
    if (!serverOpts.tests.isEmpty()) {
        char buf[1024];
        Path path;
        while (true) {
            strcpy(buf, "/tmp/rtags-test-XXXXXX");
            if (!mkdtemp(buf)) {
                fprintf(stderr, "Failed to mkdtemp (%d)\n", errno);
                return 1;
            }
            path = buf;
            path.resolve();
            break;
        }
        serverOpts.dataDir = path;
        strcpy(buf, "/tmp/rtags-sock-XXXXXX");
        const int fd = mkstemp(buf);
        if (fd == -1) {
            fprintf(stderr, "Failed to mkstemp (%d)\n", errno);
            return 1;
        }
        close(fd);
        serverOpts.socketFile = buf;
        serverOpts.socketFile.resolve();
    }
    if (defaultDataDir) {
        Path migration = String::format<128>("%s.rtags-file", Path::home().constData());
        if (migration.isDir()) {
            Rct::removeDirectory(serverOpts.dataDir);
            rename(migration.constData(), serverOpts.dataDir.constData());
            error() << "Migrated datadir from ~/.rtags-file ~/.rtags";
        }
    }
    serverOpts.dataDir = serverOpts.dataDir.ensureTrailingSlash();
    if (!server->init(serverOpts)) {
        cleanupLogging();
        return 1;
    }

    if (!serverOpts.tests.isEmpty()) {
        return server->runTests() ? 0 : 1;
    }

    loop->setInactivityTimeout(inactivityTimeout * 1000);

    loop->exec();
    const int ret = server->exitCode();
    server.reset();
    cleanupLogging();
    return ret;
}
Example #2
0
int main(int argc, char** argv)
{
    RemoveCrashDump removeCrashDump;
#ifdef OS_Darwin
    struct rlimit rlp;
    if (getrlimit(RLIMIT_NOFILE, &rlp) == 0) {
        if (rlp.rlim_cur < 1000) {
            rlp.rlim_cur = 1000;
            setrlimit(RLIMIT_NOFILE, &rlp);
        }
    }
#endif

    Rct::findExecutablePath(*argv);

    bool daemon = false;
    Server::Options serverOpts;
    const char * runtimeDir = getenv("XDG_RUNTIME_DIR");
    if (runtimeDir == NULL) {
        serverOpts.socketFile = String::format<128>("%s.rdm", Path::home().constData());
    } else {
        serverOpts.socketFile = String::format<1024>("%s/rdm.socket", runtimeDir);
    }
    serverOpts.jobCount = std::max(2, ThreadPool::idealThreadCount());
    serverOpts.headerErrorJobCount = -1;
    serverOpts.rpVisitFileTimeout = DEFAULT_RP_VISITFILE_TIMEOUT;
    serverOpts.rpIndexDataMessageTimeout = DEFAULT_RP_INDEXER_MESSAGE_TIMEOUT;
    serverOpts.rpConnectTimeout = DEFAULT_RP_CONNECT_TIMEOUT;
    serverOpts.rpConnectAttempts = DEFAULT_RP_CONNECT_ATTEMPTS;
    serverOpts.maxFileMapScopeCacheSize = DEFAULT_RDM_MAX_FILE_MAP_CACHE_SIZE;
    serverOpts.errorLimit = DEFAULT_ERROR_LIMIT;
    serverOpts.rpNiceValue = INT_MIN;
    serverOpts.options = Server::Wall|Server::SpellChecking;
    serverOpts.maxCrashCount = DEFAULT_MAX_CRASH_COUNT;
    serverOpts.completionCacheSize = DEFAULT_COMPLETION_CACHE_SIZE;
    serverOpts.maxIncludeCompletionDepth = DEFAULT_MAX_INCLUDE_COMPLETION_DEPTH;
    serverOpts.rp = defaultRP();
    strcpy(crashDumpFilePath, "crash.dump");
#ifdef FILEMANAGER_OPT_IN
    serverOpts.options |= Server::NoFileManagerWatch;
#endif
    // #ifndef NDEBUG
    //     serverOpts.options |= Server::SuspendRPOnCrash;
    // #endif
    serverOpts.dataDir = String::format<128>("%s.rtags", Path::home().constData());
    if (!serverOpts.dataDir.exists()) {
         const char * dataDir = getenv("XDG_CACHE_HOME");
         serverOpts.dataDir = dataDir ? dataDir : Path::home() + ".cache";
         serverOpts.dataDir += "/rtags/";
         serverOpts.dataDir.mkdir(Path::Recursive);
    }
    Path logFile;
    Flags<LogFlag> logFlags = DontRotate|LogStderr;
    LogLevel logLevel(LogLevel::Error);
    LogLevel logFileLogLevel(LogLevel::Error);
    bool sigHandler = true;
    assert(Path::home().endsWith('/'));
    int inactivityTimeout = 0;

    const std::initializer_list<CommandLineParser::Option<OptionType> > opts = {
        { None, 0, 0, CommandLineParser::NoValue, "Options:" },
        { Help, "help", 'h', CommandLineParser::NoValue, "Display this page." },
        { Version, "version", 0, CommandLineParser::NoValue, "Display version." },
        { IncludePath, "include-path", 'I', CommandLineParser::Required, "Add additional include path to clang." },
        { Isystem, "isystem", 's', CommandLineParser::Required, "Add additional system include path to clang." },
        { Define, "define", 'D', CommandLineParser::Required, "Add additional define directive to clang." },
        { DefaultArgument, "default-argument", 0, CommandLineParser::Required, "Add additional argument to clang." },
        { LogFile, "log-file", 'L', CommandLineParser::Required, "Log to this file." },
        { CrashDumpFile, "crash-dump-file", 0, CommandLineParser::Required, "File to dump crash log to (default is <datadir>/crash.dump)." },
        { SetEnv, "setenv", 'e', CommandLineParser::Required, "Set this environment variable (--setenv \"foobar=1\")." },
        { NoWall, "no-Wall", 'W', CommandLineParser::NoValue, "Don't use -Wall." },
        { Weverything, "Weverything", 'u', CommandLineParser::NoValue, "Use -Weverything." },
        { Verbose, "verbose", 'v', CommandLineParser::NoValue, "Change verbosity, multiple -v's are allowed." },
        { JobCount, "job-count", 'j', CommandLineParser::Required, String::format("Spawn this many concurrent processes for indexing (default %d).",
                                                                                  std::max(2, ThreadPool::idealThreadCount())) },
        { HeaderErrorJobCount, "header-error-job-count", 'H', CommandLineParser::Required, "Allow this many concurrent header error jobs (default std::max(1, --job-count / 2))." },
        { Test, "test", 't', CommandLineParser::Required, "Run this test." },
        { TestTimeout, "test-timeout", 'z', CommandLineParser::Required, "Timeout for test to complete." },
        { CleanSlate, "clean-slate", 'C', CommandLineParser::NoValue, "Clear out all data." },
        { DisableSigHandler, "disable-sighandler", 'x', CommandLineParser::NoValue, "Disable signal handler to dump stack for crashes." },
        { Silent, "silent", 'S', CommandLineParser::NoValue, "No logging to stdout/stderr." },
        { ExcludeFilter, "exclude-filter", 'X', CommandLineParser::Required, "Files to exclude from rdm, default \"" DEFAULT_EXCLUDEFILTER "\"." },
        { SocketFile, "socket-file", 'n', CommandLineParser::Required, "Use this file for the server socket (default ~/.rdm)." },
        { DataDir, "data-dir", 'd', CommandLineParser::Required, "Use this directory to store persistent data (default $XDG_CACHE_HOME/rtags otherwise ~/.cache/rtags)." },
        { IgnorePrintfFixits, "ignore-printf-fixits", 'F', CommandLineParser::NoValue, "Disregard any clang fixit that looks like it's trying to fix format for printf and friends." },
        { ErrorLimit, "error-limit", 'f', CommandLineParser::Required, "Set error limit to argument (-ferror-limit={arg} (default " STR(DEFAULT_ERROR_LIMIT) ")." },
        { BlockArgument, "block-argument", 'G', CommandLineParser::Required, "Block this argument from being passed to clang. E.g. rdm --block-argument -fno-inline" },
        { NoSpellChecking, "no-spell-checking", 'l', CommandLineParser::NoValue, "Don't pass -fspell-checking." },
        { LargeByValueCopy, "large-by-value-copy", 'r', CommandLineParser::Required, "Use -Wlarge-by-value-copy=[arg] when invoking clang." },
        { AllowMultipleSources, "allow-multiple-sources", 'm', CommandLineParser::NoValue, "Don't merge source files added with -c." },
        { NoStartupProject, "no-startup-project", 'o', CommandLineParser::NoValue, "Don't restore the last current project on startup." },
        { NoNoUnknownWarningsOption, "no-no-unknown-warnings-option", 'Y', CommandLineParser::NoValue, "Don't pass -Wno-unknown-warning-option." },
        { IgnoreCompiler, "ignore-compiler", 'b', CommandLineParser::Required, "Ignore this compiler." },
        { CompilerWrappers, "compiler-wrappers", 0, CommandLineParser::Required, "Consider these filenames compiler wrappers (split on ;), default " DEFAULT_COMPILER_WRAPPERS "\"." },
        { WatchSystemPaths, "watch-system-paths", 'w', CommandLineParser::NoValue, "Watch system paths for changes." },
        { RpVisitFileTimeout, "rp-visit-file-timeout", 'Z', CommandLineParser::Required, "Timeout for rp visitfile commands in ms (0 means no timeout) (default " STR(DEFAULT_RP_VISITFILE_TIMEOUT) ")." },
        { RpIndexerMessageTimeout, "rp-indexer-message-timeout", 'T', CommandLineParser::Required, "Timeout for rp indexer-message in ms (0 means no timeout) (default " STR(DEFAULT_RP_INDEXER_MESSAGE_TIMEOUT) ")." },
        { RpConnectTimeout, "rp-connect-timeout", 'O', CommandLineParser::Required, "Timeout for connection from rp to rdm in ms (0 means no timeout) (default " STR(DEFAULT_RP_CONNECT_TIMEOUT) ")." },
        { RpConnectAttempts, "rp-connect-attempts", 0, CommandLineParser::Required, "Number of times rp attempts to connect to rdm before giving up. (default " STR(DEFAULT_RP_CONNECT_ATTEMPTS) ")." },
        { RpNiceValue, "rp-nice-value", 'a', CommandLineParser::Required, "Nice value to use for rp (nice(2)) (default is no nicing)." },
        { SuspendRpOnCrash, "suspend-rp-on-crash", 'q', CommandLineParser::NoValue, "Suspend rp in SIGSEGV handler (default " DEFAULT_SUSPEND_RP ")." },
        { RpLogToSyslog, "rp-log-to-syslog", 0, CommandLineParser::NoValue, "Make rp log to syslog." },
        { StartSuspended, "start-suspended", 'Q', CommandLineParser::NoValue, "Start out suspended (no reindexing enabled)." },
        { SeparateDebugAndRelease, "separate-debug-and-release", 'E', CommandLineParser::NoValue, "Normally rdm doesn't consider release and debug as different builds. Pass this if you want it to." },
        { Separate32BitAnd64Bit, "separate-32-bit-and-64-bit", 0, CommandLineParser::NoValue, "Normally rdm doesn't consider -m32 and -m64 as different builds. Pass this if you want it to." },
        { SourceIgnoreIncludePathDifferencesInUsr, "ignore-include-path-differences-in-usr", 0, CommandLineParser::NoValue, "Don't consider sources that only differ in includepaths within /usr (not including /usr/home/) as different builds." },
        { MaxCrashCount, "max-crash-count", 'K', CommandLineParser::Required, "Max number of crashes before giving up a sourcefile (default " STR(DEFAULT_MAX_CRASH_COUNT) ")." },
        { CompletionCacheSize, "completion-cache-size", 'i', CommandLineParser::Required, "Number of translation units to cache (default " STR(DEFAULT_COMPLETION_CACHE_SIZE) ")." },
        { CompletionNoFilter, "completion-no-filter", 0, CommandLineParser::NoValue, "Don't filter private members and destructors from completions." },
        { CompletionLogs, "completion-logs", 0, CommandLineParser::NoValue, "Log more info about completions." },
        { MaxIncludeCompletionDepth, "max-include-completion-depth", 0, CommandLineParser::Required, "Max recursion depth for header completion (default " STR(DEFAULT_MAX_INCLUDE_COMPLETION_DEPTH) ")." },
        { AllowWpedantic, "allow-Wpedantic", 'P', CommandLineParser::NoValue, "Don't strip out -Wpedantic. This can cause problems in certain projects." },
        { AllowWErrorAndWFatalErrors, "allow-Werror", 0, CommandLineParser::NoValue, "Don't strip out -Werror and -Wfatal-errors. By default these are stripped out. " },
        { EnableCompilerManager, "enable-compiler-manager", 'R', CommandLineParser::NoValue, "Query compilers for their actual include paths instead of letting clang use its own." },
        { EnableNDEBUG, "enable-NDEBUG", 'g', CommandLineParser::NoValue, "Don't remove -DNDEBUG from compile lines." },
        { Progress, "progress", 'p', CommandLineParser::NoValue, "Report compilation progress in diagnostics output." },
        { MaxFileMapCacheSize, "max-file-map-cache-size", 'y', CommandLineParser::Required, "Max files to cache per query (Should not exceed maximum number of open file descriptors allowed per process) (default " STR(DEFAULT_RDM_MAX_FILE_MAP_CACHE_SIZE) ")." },
#ifdef FILEMANAGER_OPT_IN
        { FileManagerWatch, "filemanager-watch", 'M', CommandLineParser::NoValue, "Use a file system watcher for filemanager." },
#else
        { NoFileManagerWatch, "no-filemanager-watch", 'M', CommandLineParser::NoValue, "Don't use a file system watcher for filemanager." },
#endif
        { NoFileManager, "no-filemanager", 0, CommandLineParser::NoValue, "Don't scan project directory for files. (rc -P won't work)." },
        { NoFileLock, "no-file-lock", 0, CommandLineParser::NoValue, "Disable file locking. Not entirely safe but might improve performance on certain systems." },
        { PchEnabled, "pch-enabled", 0, CommandLineParser::NoValue, "Enable PCH (experimental)." },
        { NoFilesystemWatcher, "no-filesystem-watcher", 'B', CommandLineParser::NoValue, "Disable file system watching altogether. Reindexing has to be triggered manually." },
        { ArgTransform, "arg-transform", 'V', CommandLineParser::Required, "Use arg to transform arguments. [arg] should be executable with (execv(3))." },
        { NoComments, "no-comments", 0, CommandLineParser::NoValue, "Don't parse/store doxygen comments." },
#ifdef RTAGS_HAS_LAUNCHD
        { Launchd, "launchd", 0, CommandLineParser::NoValue, "Run as a launchd job (use launchd API to retrieve socket opened by launchd on rdm's behalf)." },
#endif
        { InactivityTimeout, "inactivity-timeout", 0, CommandLineParser::Required, "Time in seconds after which rdm will quit if there's been no activity (N.B., once rdm has quit, something will need to re-run it!)." },
        { Daemon, "daemon", 0, CommandLineParser::NoValue, "Run as daemon (detach from terminal)." },
        { LogFileLogLevel, "log-file-log-level", 0, CommandLineParser::Required, "Log level for log file (default is error), options are: error, warning, debug or verbose-debug." },
        { WatchSourcesOnly, "watch-sources-only", 0, CommandLineParser::NoValue, "Only watch source files (not dependencies)." },
        { DebugLocations, "debug-locations", 0, CommandLineParser::NoValue, "Set debug locations." },
        { ValidateFileMaps, "validate-file-maps", 0, CommandLineParser::NoValue, "Spend some time validating project data on startup." },
        { TcpPort, "tcp-port", 0, CommandLineParser::Required, "Listen on this tcp socket (default none)." },
        { RpPath, "rp-path", 0, CommandLineParser::Required, String::format<256>("Path to rp (default %s).", defaultRP().constData()) },
        { LogTimestamp, "log-timestamp", 0, CommandLineParser::NoValue, "Add timestamp to logs." },
        { LogFlushOption, "log-flush", 0, CommandLineParser::NoValue, "Flush stderr/stdout after each log." },
        { SandboxRoot, "sandbox-root",  0, CommandLineParser::Required, "Create index using relative paths by stripping dir (enables copying of tag index db files without need to reindex)." },
        { PollTimer, "poll-timer", 0, CommandLineParser::Required, "Poll the database of the current project every <arg> seconds. " },
        { NoRealPath, "no-realpath", 0, CommandLineParser::NoValue, "Don't use realpath(3) for files" },
        { Noop, "config", 'c', CommandLineParser::Required, "Use this file (instead of ~/.rdmrc)." },
        { Noop, "no-rc", 'N', CommandLineParser::NoValue, "Don't load any rc files." }
    };

    std::function<CommandLineParser::ParseStatus(OptionType type, String &&value, size_t &idx, const List<String> &args)> cb;
    cb = [&](OptionType type, String &&value, size_t &, const List<String> &) -> CommandLineParser::ParseStatus {
        switch (type) {
        case None:
        case Noop:
        break;
        case Help: {
            CommandLineParser::help(stdout, Rct::executablePath().fileName(), opts);
            return { String(), CommandLineParser::Parse_Ok }; }
        case Version: {
            fprintf(stdout, "%s\n", RTags::versionString().constData());
            return { String(), CommandLineParser::Parse_Ok }; }
        case IncludePath: {
            serverOpts.includePaths.append(Source::Include(Source::Include::Type_Include, Path::resolved(value)));
            break; }
        case Isystem: {
            serverOpts.includePaths.append(Source::Include(Source::Include::Type_System, Path::resolved(value)));
            break; }
        case Define: {
            const size_t eq = value.indexOf('=');
            Source::Define def;
            if (eq == String::npos) {
                def.define = std::move(value);
            } else {
                def.define = value.left(eq);
                def.value = value.mid(eq + 1);
            }
            serverOpts.defines.append(def);
            break; }
        case DefaultArgument: {
            serverOpts.defaultArguments.append(std::move(value));
            break; }
        case LogFile: {
            logFile = std::move(value);
            logFile.resolve();
            logLevel = LogLevel::None;
            break; }
        case CrashDumpFile: {
            strncpy(crashDumpFilePath, value.constData(), sizeof(crashDumpFilePath) - 1);
            break; }
        case SetEnv: {
            putenv(&value[0]);
            break; }
        case NoWall: {
            serverOpts.options &= ~Server::Wall;
            break; }
        case Weverything: {
            serverOpts.options |= Server::Weverything;
            break; }
        case Verbose: {
            if (logLevel != LogLevel::None)
                ++logLevel;
            break; }
        case JobCount: {
            bool ok;
            serverOpts.jobCount = String(value).toULong(&ok);
            if (!ok) {
                return { String::format<1024>("Can't parse argument to -j %s. -j must be a positive integer.\n", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
        case HeaderErrorJobCount: {
            bool ok;
            serverOpts.headerErrorJobCount = String(value).toULong(&ok);
            if (!ok) {
                return { String::format<1024>("Can't parse argument to -H %s. -H must be a positive integer.", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
        case Test: {
            Path test(value);
            if (!test.resolve() || !test.isFile()) {
                return { String::format<1024>("%s doesn't seem to be a file", value.constData()), CommandLineParser::Parse_Error };
            }
            serverOpts.tests += test;
            break; }
        case TestTimeout: {
            serverOpts.testTimeout = atoi(value.constData());
            if (serverOpts.testTimeout <= 0) {
                return { String::format<1024>("Invalid argument to -z %s", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
        case PollTimer: {
            serverOpts.pollTimer = atoi(value.constData());
            if (serverOpts.pollTimer < 0) {
                return { String::format<1024>("Invalid argument to --poll-timer %s", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
        case CleanSlate: {
            serverOpts.options |= Server::ClearProjects;
            break; }
        case DisableSigHandler: {
            sigHandler = false;
            break; }
        case Silent: {
            logLevel = LogLevel::None;
            break; }
        case ExcludeFilter: {
            serverOpts.excludeFilters += String(value).split(';');
            break; }
        case SocketFile: {
            serverOpts.socketFile = std::move(value);
            serverOpts.socketFile.resolve();
            break; }
        case DataDir: {
            serverOpts.dataDir = String::format<128>("%s", Path::resolved(value).constData());
            break; }
        case IgnorePrintfFixits: {
            serverOpts.options |= Server::IgnorePrintfFixits;
            break; }
        case ErrorLimit: {
            bool ok;
            serverOpts.errorLimit = String(value).toULong(&ok);
            if (!ok) {
                return { String::format<1024>("Can't parse argument to --error-limit %s", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
        case BlockArgument: {
            serverOpts.blockedArguments << value;
            break; }
        case NoSpellChecking: {
            serverOpts.options &= ~Server::SpellChecking;
            break; }
        case LargeByValueCopy: {
            int large = atoi(value.constData());
            if (large <= 0) {
                return { String::format<1024>("Can't parse argument to -r %s", value.constData()), CommandLineParser::Parse_Error };
            }
            serverOpts.defaultArguments.append("-Wlarge-by-value-copy=" + String(value)); // ### not quite working
            break; }
        case AllowMultipleSources: {
            serverOpts.options |= Server::AllowMultipleSources;
            break; }
        case NoStartupProject: {
            serverOpts.options |= Server::NoStartupCurrentProject;
            break; }
        case NoNoUnknownWarningsOption: {
            serverOpts.options |= Server::NoNoUnknownWarningsOption;
            break; }
        case IgnoreCompiler: {
            serverOpts.ignoredCompilers.insert(Path::resolved(value));
            break; }
        case CompilerWrappers: {
            serverOpts.compilerWrappers = String(value).split(";", String::SkipEmpty).toSet();
            break; }
        case WatchSystemPaths: {
            serverOpts.options |= Server::WatchSystemPaths;
            break; }
        case RpVisitFileTimeout: {
            serverOpts.rpVisitFileTimeout = atoi(value.constData());
            if (serverOpts.rpVisitFileTimeout < 0) {
                return { String::format<1024>("Invalid argument to -Z %s", value.constData()), CommandLineParser::Parse_Error };
            }
            if (!serverOpts.rpVisitFileTimeout)
                serverOpts.rpVisitFileTimeout = -1;
            break; }
        case RpIndexerMessageTimeout: {
            serverOpts.rpIndexDataMessageTimeout = atoi(value.constData());
            if (serverOpts.rpIndexDataMessageTimeout <= 0) {
                return { String::format<1024>("Can't parse argument to -T %s.", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
        case RpConnectTimeout: {
            serverOpts.rpConnectTimeout = atoi(value.constData());
            if (serverOpts.rpConnectTimeout < 0) {
                return { String::format<1024>("Invalid argument to -O %s", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
        case RpConnectAttempts: {
            serverOpts.rpConnectAttempts = atoi(value.constData());
            if (serverOpts.rpConnectAttempts <= 0) {
                return { String::format<1024>("Invalid argument to --rp-connect-attempts %s", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
        case RpNiceValue: {
            bool ok;
            serverOpts.rpNiceValue = value.toLong(&ok);
            if (!ok) {
                return { String::format<1024>("Can't parse argument to -a %s.", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
        case SuspendRpOnCrash: {
            serverOpts.options |= Server::SuspendRPOnCrash;
            break; }
        case RpLogToSyslog: {
            serverOpts.options |= Server::RPLogToSyslog;
            break; }
        case StartSuspended: {
            serverOpts.options |= Server::StartSuspended;
            break; }
        case SeparateDebugAndRelease: {
            serverOpts.options |= Server::SeparateDebugAndRelease;
            break; }
        case Separate32BitAnd64Bit: {
            serverOpts.options |= Server::Separate32BitAnd64Bit;
            break; }
        case SourceIgnoreIncludePathDifferencesInUsr: {
            serverOpts.options |= Server::SourceIgnoreIncludePathDifferencesInUsr;
            break; }
        case MaxCrashCount: {
            serverOpts.maxCrashCount = atoi(value.constData());
            if (serverOpts.maxCrashCount <= 0) {
                return { String::format<1024>("Invalid argument to -K %s", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
        case CompletionCacheSize: {
            serverOpts.completionCacheSize = atoi(value.constData());
            if (serverOpts.completionCacheSize <= 0) {
                return { String::format<1024>("Invalid argument to -i %s", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
        case CompletionNoFilter: {
            serverOpts.options |= Server::CompletionsNoFilter;
            break; }
        case CompletionLogs: {
            serverOpts.options |= Server::CompletionLogs;
            break; }
        case MaxIncludeCompletionDepth: {
            serverOpts.maxIncludeCompletionDepth = strtoul(value.constData(), 0, 10);
            break; }
        case AllowWpedantic: {
            serverOpts.options |= Server::AllowPedantic;
            break; }
        case AllowWErrorAndWFatalErrors: {
            serverOpts.options |= Server::AllowWErrorAndWFatalErrors;
            break; }
        case EnableCompilerManager: {
            serverOpts.options |= Server::EnableCompilerManager;
            break; }
        case EnableNDEBUG: {
            serverOpts.options |= Server::EnableNDEBUG;
            break; }
        case Progress: {
            serverOpts.options |= Server::Progress;
            break; }
        case MaxFileMapCacheSize: {
            serverOpts.maxFileMapScopeCacheSize = atoi(value.constData());
            if (serverOpts.maxFileMapScopeCacheSize <= 0) {
                return { String::format<1024>("Invalid argument to -y %s", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
#ifdef FILEMANAGER_OPT_IN
        case FileManagerWatch: {
            serverOpts.options &= ~Server::NoFileManagerWatch;
            break; }
#else
        case NoFileManagerWatch: {
            serverOpts.options |= Server::NoFileManagerWatch;
            break; }
#endif
        case NoFileManager: {
            serverOpts.options |= Server::NoFileManager;
            break; }
        case NoFileLock: {
            serverOpts.options |= Server::NoFileLock;
            break; }
        case PchEnabled: {
            serverOpts.options |= Server::PCHEnabled;
            break; }
        case NoFilesystemWatcher: {
            serverOpts.options |= Server::NoFileSystemWatch;
            break; }
        case ArgTransform: {
            serverOpts.argTransform = Process::findCommand(value);
            if (!value.isEmpty() && serverOpts.argTransform.isEmpty()) {
                return { String::format<1024>("Invalid argument to -V. Can't resolve %s", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
        case NoComments: {
            serverOpts.options |= Server::NoComments;
            break; }
#ifdef RTAGS_HAS_LAUNCHD
        case Launchd: {
            serverOpts.options |= Server::Launchd;
            break; }
#endif
        case InactivityTimeout: {
            inactivityTimeout = atoi(value.constData()); // seconds.
            if (inactivityTimeout <= 0) {
                return { String::format<1024>("Invalid argument to --inactivity-timeout %s", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
        case Daemon: {
            daemon = true;
            logLevel = LogLevel::None;
            break; }
        case LogFileLogLevel: {
            if (!strcasecmp(value.constData(), "verbose-debug")) {
                logFileLogLevel = LogLevel::VerboseDebug;
            } else if (!strcasecmp(value.constData(), "debug")) {
                logFileLogLevel = LogLevel::Debug;
            } else if (!strcasecmp(value.constData(), "warning")) {
                logFileLogLevel = LogLevel::Warning;
            } else if (!strcasecmp(value.constData(), "error")) {
                logFileLogLevel = LogLevel::Error;
            } else {
                return { String::format<1024>("Unknown log level: %s options are error, warning, debug or verbose-debug", value.constData()),
                         CommandLineParser::Parse_Error };
            }
            break; }
        case WatchSourcesOnly: {
            serverOpts.options |= Server::WatchSourcesOnly;
            break; }
        case DebugLocations: {
            if (value == "clear" || value == "none") {
                serverOpts.debugLocations.clear();
            } else {
                serverOpts.debugLocations << value;
            }
            break; }
        case ValidateFileMaps: {
            serverOpts.options |= Server::ValidateFileMaps;
            break; }
        case TcpPort: {
            serverOpts.tcpPort = atoi(value.constData());
            if (!serverOpts.tcpPort) {
                return { String::format<1024>("Invalid port %s for --tcp-port", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
        case RpPath: {
            serverOpts.rp = std::move(value);
            if (serverOpts.rp.isFile()) {
                serverOpts.rp.resolve();
            } else {
                return { String::format<1024>("%s is not a file", value.constData()), CommandLineParser::Parse_Error };
            }
            break; }
        case LogTimestamp: {
            logFlags |= LogTimeStamp;
            break; }
        case LogFlushOption: {
            logFlags |= LogFlush;
            break; }
        case SandboxRoot: {
            serverOpts.sandboxRoot = std::move(value);
            if (!serverOpts.sandboxRoot.endsWith('/'))
                serverOpts.sandboxRoot += '/';
            if (!serverOpts.sandboxRoot.resolve() || !serverOpts.sandboxRoot.isDir()) {
                return {
                    String::format<1024>("%s is not a valid directory for sandbox-root",
                                         serverOpts.sandboxRoot.constData()),
                    CommandLineParser::Parse_Error
                    };
            }
            break; }
        case NoRealPath: {
            Path::setRealPathEnabled(false);
            serverOpts.options |= Server::NoRealPath;
            break; }
        }

        return { String(), CommandLineParser::Parse_Exec };
    };

    const std::initializer_list<CommandLineParser::Option<CommandLineParser::ConfigOptionType> > configOpts = {
        { CommandLineParser::Config, "config", 'c', CommandLineParser::Required, "Use this file (instead of ~/.rdmrc)." },
        { CommandLineParser::NoRc, "no-rc", 'N', CommandLineParser::NoValue, "Don't load any rc files." }
    };


    const CommandLineParser::ParseStatus status = CommandLineParser::parse<OptionType>(argc, argv, opts, NullFlags, cb, "rdm", configOpts);
    switch (status.status) {
    case CommandLineParser::Parse_Error:
        fprintf(stderr, "%s\n", status.error.constData());
        return 1;
    case CommandLineParser::Parse_Ok:
        return 0;
    case CommandLineParser::Parse_Exec:
        break;
    }

    if (daemon) {
        switch (fork()) {
        case -1:
            fprintf(stderr, "Failed to fork (%d) %s\n", errno, strerror(errno));
            return 1;
        case 0:
            setsid();
            switch (fork()) {
            case -1:
                fprintf(stderr, "Failed to fork (%d) %s\n", errno, strerror(errno));
                return 1;
            case 0:
                break;
            default:
                return 0;
            }
            break;
        default:
            return 0;
        }
    }

    if (serverOpts.excludeFilters.isEmpty())
        serverOpts.excludeFilters = String(DEFAULT_EXCLUDEFILTER).split(';');
    if (serverOpts.compilerWrappers.isEmpty())
        serverOpts.compilerWrappers = String(DEFAULT_COMPILER_WRAPPERS).split(';').toSet();

    if (!serverOpts.headerErrorJobCount) {
        serverOpts.headerErrorJobCount = std::max<size_t>(1, serverOpts.jobCount / 2);
    } else {
        serverOpts.headerErrorJobCount = std::min(serverOpts.headerErrorJobCount, serverOpts.jobCount);
    }

    if (sigHandler) {
        signal(SIGSEGV, signalHandler);
        signal(SIGBUS, signalHandler);
        signal(SIGILL, signalHandler);
        signal(SIGABRT, signalHandler);
    }

    if (!initLogging(argv[0], logFlags, logLevel, logFile, logFileLogLevel)) {
        fprintf(stderr, "Can't initialize logging with %d %s %s\n",
                logLevel.toInt(), logFile.constData(), logFlags.toString().constData());
        return 1;
    }

#ifdef RTAGS_HAS_LAUNCHD
    if (serverOpts.options & Server::Launchd) {
        // Clamp inactivity timeout. launchd starts to worry if the
        // process runs for less than 10 seconds.

        static const int MIN_INACTIVITY_TIMEOUT = 15; // includes
        // fudge factor.

        if (inactivityTimeout < MIN_INACTIVITY_TIMEOUT) {
            inactivityTimeout = MIN_INACTIVITY_TIMEOUT;
            fprintf(stderr, "launchd mode - clamped inactivity timeout to %d to avoid launchd warnings.\n", inactivityTimeout);
        }
    }
#endif

    EventLoop::SharedPtr loop(new EventLoop);
    loop->init(EventLoop::MainEventLoop|EventLoop::EnableSigIntHandler|EventLoop::EnableSigTermHandler);

    auto server = std::make_shared<Server>();
    if (!serverOpts.tests.isEmpty()) {
        char buf[1024];
        Path path;
        while (true) {
            strcpy(buf, "/tmp/rtags-test-XXXXXX");
            if (!mkdtemp(buf)) {
                fprintf(stderr, "Failed to mkdtemp (%d)\n", errno);
                return 1;
            }
            path = buf;
            path.resolve();
            break;
        }
        serverOpts.dataDir = path;
        strcpy(buf, "/tmp/rtags-sock-XXXXXX");
        const int fd = mkstemp(buf);
        if (fd == -1) {
            fprintf(stderr, "Failed to mkstemp (%d)\n", errno);
            return 1;
        }
        close(fd);
        serverOpts.socketFile = buf;
        serverOpts.socketFile.resolve();
    }
    serverOpts.dataDir = serverOpts.dataDir.ensureTrailingSlash();

#ifdef HAVE_BACKTRACE
    if (strlen(crashDumpFilePath)) {
        if (crashDumpFilePath[0] != '/') {
            const String f = crashDumpFilePath;
            snprintf(crashDumpFilePath, sizeof(crashDumpFilePath), "%s%s", serverOpts.dataDir.constData(), f.constData());
        }
        snprintf(crashDumpTempFilePath, sizeof(crashDumpTempFilePath), "%s.tmp", crashDumpFilePath);
        Path::mkdir(serverOpts.dataDir);
        crashDumpFile = fopen(crashDumpTempFilePath, "w");
        if (!crashDumpFile) {
            fprintf(stderr, "Couldn't open temp file %s for write (%d)\n", crashDumpTempFilePath, errno);
        }
    }
#endif

    if (!server->init(serverOpts)) {
        cleanupLogging();
        return 1;
    }

    if (!serverOpts.tests.isEmpty()) {
        return server->runTests() ? 0 : 1;
    }

    loop->setInactivityTimeout(inactivityTimeout * 1000);

    loop->exec();
    const int ret = server->exitCode();
    server.reset();
    cleanupLogging();
    return ret;
}
Example #3
0
RClient::ParseStatus RClient::parse(int &argc, char **argv)
{
    Rct::findExecutablePath(*argv);
    mSocketFile = Path::home() + ".rdm";

    List<option> options;
    options.reserve(sizeof(opts) / sizeof(Option));
    List<std::shared_ptr<QueryCommand> > projectCommands;

    String shortOptionString;
    Hash<int, Option*> shortOptions, longOptions;
    for (int i=0; opts[i].description; ++i) {
        if (opts[i].option != None) {
            const option opt = { opts[i].longOpt, opts[i].argument, 0, opts[i].shortOpt };
            if (opts[i].shortOpt) {
                shortOptionString.append(opts[i].shortOpt);
                switch (opts[i].argument) {
                case no_argument:
                    break;
                case required_argument:
                    shortOptionString.append(':');
                    break;
                case optional_argument:
                    shortOptionString.append("::");
                    break;
                }
                assert(!shortOptions.contains(opts[i].shortOpt));
                shortOptions[opts[i].shortOpt] = &opts[i];
            }
            if (opts[i].longOpt)
                longOptions[options.size()] = &opts[i];
            options.push_back(opt);
        }
    }

    if (getenv("RTAGS_DUMP_UNUSED")) {
        String unused;
        for (int i=0; i<26; ++i) {
            if (!shortOptionString.contains('a' + i))
                unused.append('a' + i);
            if (!shortOptionString.contains('A' + i))
                unused.append('A' + i);
        }
        printf("Unused: %s\n", unused.constData());
        for (int i=0; opts[i].description; ++i) {
            if (opts[i].longOpt) {
                if (!opts[i].shortOpt) {
                    printf("No shortoption for %s\n", opts[i].longOpt);
                } else if (opts[i].longOpt[0] != opts[i].shortOpt) {
                    printf("Not ideal option for %s|%c\n", opts[i].longOpt, opts[i].shortOpt);
                }
            }
        }
        return Parse_Ok;
    }

    {
        const option opt = { 0, 0, 0, 0 };
        options.push_back(opt);
    }

    Path logFile;
    Flags<LogFileFlag> logFlags;

    enum State {
        Parsing,
        Done,
        Error
    } state = Parsing;
    while (true) {
        int idx = -1;
        const int c = getopt_long(argc, argv, shortOptionString.constData(), options.data(), &idx);
        switch (c) {
        case -1:
            state = Done;
            break;
        case '?':
        case ':':
            state = Error;
            break;
        default:
            break;
        }
        if (state != Parsing)
            break;

        const Option *opt = (idx == -1 ? shortOptions.value(c) : longOptions.value(idx));
        assert(opt);

        if (!isatty(STDOUT_FILENO)) {
            mQueryFlags |= QueryMessage::NoColor;
        }

        switch (opt->option) {
        case None:
        case NumOptions:
            assert(0);
            break;
        case Help:
            help(stdout, argv[0]);
            return Parse_Ok;
        case Man:
            man();
            return Parse_Ok;
        case SocketFile:
            mSocketFile = optarg;
            break;
        case GuessFlags:
            mGuessFlags = true;
            break;
        case Wait:
            mQueryFlags |= QueryMessage::Wait;
            break;
        case IMenu:
            mQueryFlags |= QueryMessage::IMenu;
            break;
        case CompilationFlagsOnly:
            mQueryFlags |= QueryMessage::CompilationFlagsOnly;
            break;
        case NoColor:
            mQueryFlags |= QueryMessage::NoColor;
            break;
        case CompilationFlagsSplitLine:
            mQueryFlags |= QueryMessage::CompilationFlagsSplitLine;
            break;
        case ContainingFunction:
            mQueryFlags |= QueryMessage::ContainingFunction;
            break;
        case ContainingFunctionLocation:
            mQueryFlags |= QueryMessage::ContainingFunctionLocation;
            break;
        case DeclarationOnly:
            mQueryFlags |= QueryMessage::DeclarationOnly;
            break;
        case DefinitionOnly:
            mQueryFlags |= QueryMessage::DefinitionOnly;
            break;
        case FindVirtuals:
            mQueryFlags |= QueryMessage::FindVirtuals;
            break;
        case FindFilePreferExact:
            mQueryFlags |= QueryMessage::FindFilePreferExact;
            break;
        case SymbolInfoIncludeParents:
            mQueryFlags |= QueryMessage::SymbolInfoIncludeParents;
            break;
        case SymbolInfoExcludeTargets:
            mQueryFlags |= QueryMessage::SymbolInfoExcludeTargets;
            break;
        case SymbolInfoExcludeReferences:
            mQueryFlags |= QueryMessage::SymbolInfoExcludeReferences;
            break;
        case CursorKind:
            mQueryFlags |= QueryMessage::CursorKind;
            break;
        case SynchronousCompletions:
            mQueryFlags |= QueryMessage::SynchronousCompletions;
            break;
        case DisplayName:
            mQueryFlags |= QueryMessage::DisplayName;
            break;
        case AllReferences:
            mQueryFlags |= QueryMessage::AllReferences;
            break;
        case AllTargets:
            mQueryFlags |= QueryMessage::AllTargets;
            break;
        case MatchCaseInsensitive:
            mQueryFlags |= QueryMessage::MatchCaseInsensitive;
            break;
        case MatchRegex:
            mQueryFlags |= QueryMessage::MatchRegex;
            break;
        case AbsolutePath:
            mQueryFlags |= QueryMessage::AbsolutePath;
            break;
        case ReverseSort:
            mQueryFlags |= QueryMessage::ReverseSort;
            break;
        case Rename:
            mQueryFlags |= QueryMessage::Rename;
            break;
        case Elisp:
            mQueryFlags |= QueryMessage::Elisp;
            break;
        case FilterSystemHeaders:
            mQueryFlags |= QueryMessage::FilterSystemIncludes;
            break;
        case NoContext:
            mQueryFlags |= QueryMessage::NoContext;
            break;
        case PathFilter: {
            Path p = optarg;
            p.resolve();
            mPathFilters.insert({ p, QueryMessage::PathFilter::Self });
            break; }
        case DependencyFilter: {
            Path p = optarg;
            p.resolve();
            if (!p.isFile()) {
                fprintf(stderr, "%s doesn't seem to be a file\n", optarg);
                return Parse_Error;
            }
            mPathFilters.insert({ p, QueryMessage::PathFilter::Dependency });
            break; }
        case KindFilter:
            mKindFilters.insert(optarg);
            break;
        case WildcardSymbolNames:
            mQueryFlags |= QueryMessage::WildcardSymbolNames;
            break;
        case RangeFilter: {
            char *end;
            mMinOffset = strtoul(optarg, &end, 10);
            if (*end != '-') {
                fprintf(stderr, "Can't parse range, must be uint-uint. E.g. 1-123\n");
                return Parse_Error;
            }
            mMaxOffset = strtoul(end + 1, &end, 10);
            if (*end) {
                fprintf(stderr, "Can't parse range, must be uint-uint. E.g. 1-123\n");
                return Parse_Error;
            }
            if (mMaxOffset <= mMinOffset || mMinOffset < 0) {
                fprintf(stderr, "Invalid range (%d-%d), must be uint-uint. E.g. 1-123\n", mMinOffset, mMaxOffset);
                return Parse_Error;
            }
            break; }
        case Version:
            fprintf(stdout, "%s\n", RTags::versionString().constData());
            return Parse_Ok;
        case Verbose:
            ++mLogLevel;
            break;
        case PrepareCodeCompleteAt:
        case CodeCompleteAt: {
            const String encoded = Location::encode(optarg);
            if (encoded.isEmpty()) {
                fprintf(stderr, "Can't resolve argument %s\n", optarg);
                return Parse_Error;
            }

            addQuery(opt->option == CodeCompleteAt ? QueryMessage::CodeCompleteAt : QueryMessage::PrepareCodeCompleteAt, encoded);
            break; }
        case Silent:
            mLogLevel = LogLevel::None;
            break;
        case LogFile:
            logFile = optarg;
            break;
        case StripParen:
            mQueryFlags |= QueryMessage::StripParentheses;
            break;
        case DumpIncludeHeaders:
            mQueryFlags |= QueryMessage::DumpIncludeHeaders;
            break;
        case SilentQuery:
            mQueryFlags |= QueryMessage::SilentQuery;
            break;
        case BuildIndex: {
            bool ok;
            mBuildIndex = String(optarg).toULongLong(&ok);
            if (!ok) {
                fprintf(stderr, "--build-index [arg] must be >= 0\n");
                return Parse_Error;
            }
            break; }
        case ConnectTimeout:
            mConnectTimeout = atoi(optarg);
            if (mConnectTimeout < 0) {
                fprintf(stderr, "--connect-timeout [arg] must be >= 0\n");
                return Parse_Error;
            }
            break;
        case Max:
            mMax = atoi(optarg);
            if (mMax < 0) {
                fprintf(stderr, "-M [arg] must be >= 0\n");
                return Parse_Error;
            }
            break;
        case Timeout:
            mTimeout = atoi(optarg);
            if (!mTimeout) {
                mTimeout = -1;
            } else if (mTimeout < 0) {
                fprintf(stderr, "-y [arg] must be >= 0\n");
                return Parse_Error;
            }
            break;
        case UnsavedFile: {
            const String arg(optarg);
            const int colon = arg.lastIndexOf(':');
            if (colon == -1) {
                fprintf(stderr, "Can't parse -u [%s]\n", optarg);
                return Parse_Error;
            }
            const int bytes = atoi(arg.constData() + colon + 1);
            if (!bytes) {
                fprintf(stderr, "Can't parse -u [%s]\n", optarg);
                return Parse_Error;
            }
            const Path path = Path::resolved(arg.left(colon));
            if (!path.isFile()) {
                fprintf(stderr, "Can't open [%s] for reading\n", arg.left(colon).nullTerminated());
                return Parse_Error;
            }

            String contents(bytes, '\0');
            const int r = fread(contents.data(), 1, bytes, stdin);
            if (r != bytes) {
                fprintf(stderr, "Read error %d (%s). Got %d, expected %d\n",
                        errno, Rct::strerror(errno).constData(), r, bytes);
                return Parse_Error;
            }
            mUnsavedFiles[path] = contents;
            break; }
        case FollowLocation:
        case SymbolInfo:
        case ClassHierarchy:
        case ReferenceLocation: {
            const String encoded = Location::encode(optarg);
            if (encoded.isEmpty()) {
                fprintf(stderr, "Can't resolve argument %s\n", optarg);
                return Parse_Error;
            }
            QueryMessage::Type type = QueryMessage::Invalid;
            switch (opt->option) {
            case FollowLocation: type = QueryMessage::FollowLocation; break;
            case SymbolInfo: type = QueryMessage::SymbolInfo; break;
            case ReferenceLocation: type = QueryMessage::ReferencesLocation; break;
            case ClassHierarchy: type = QueryMessage::ClassHierarchy; break;
            default: assert(0); break;
            }
            addQuery(type, encoded, QueryMessage::HasLocation);
            break; }
        case CurrentFile:
            mCurrentFile.append(Path::resolved(optarg));
            break;
        case ReloadFileManager:
            addQuery(QueryMessage::ReloadFileManager);
            break;
        case DumpCompletions:
            addQuery(QueryMessage::DumpCompletions);
            break;
        case DumpCompilationDatabase:
            addQuery(QueryMessage::DumpCompilationDatabase);
            break;
        case Clear:
            addQuery(QueryMessage::ClearProjects);
            break;
        case RdmLog:
            addLog(RdmLogCommand::Default);
            break;
        case Diagnostics:
            addLog(RTags::Diagnostics);
            break;
        case QuitRdm: {
            const char *arg = 0;
            if (optarg) {
                arg = optarg;
            } else if (optind < argc && argv[optind][0] != '-') {
                arg = argv[optind++];
            }
            int exit = 0;
            if (arg) {
                bool ok;
                exit = String(arg).toLongLong(&ok);
                if (!ok) {
                    fprintf(stderr, "Invalid argument to -q\n");
                    return Parse_Error;
                }
            }
            addQuitCommand(exit);
            break; }
        case DeleteProject:
            addQuery(QueryMessage::DeleteProject, optarg);
            break;
        case SendDiagnostics:
            addQuery(QueryMessage::SendDiagnostics, optarg);
            break;
        case FindProjectRoot: {
            const Path p = Path::resolved(optarg);
            printf("findProjectRoot [%s] => [%s]\n", p.constData(),
                   RTags::findProjectRoot(p, RTags::SourceRoot).constData());
            return Parse_Ok; }
        case FindProjectBuildRoot: {
            const Path p = Path::resolved(optarg);
            printf("findProjectRoot [%s] => [%s]\n", p.constData(),
                   RTags::findProjectRoot(p, RTags::BuildRoot).constData());
            return Parse_Ok; }
        case RTagsConfig: {
            const Path p = Path::resolved(optarg);
            Map<String, String> config = RTags::rtagsConfig(p);
            printf("rtags-config: %s:\n", p.constData());
            for (const auto &it : config) {
                printf("%s: \"%s\"\n", it.first.constData(), it.second.constData());
            }
            return Parse_Ok; }
        case CurrentProject:
            addQuery(QueryMessage::Project, String(), QueryMessage::CurrentProjectOnly);
            break;
        case CheckReindex:
        case Reindex:
        case Project:
        case FindFile:
        case ListSymbols:
        case FindSymbols:
        case Sources:
        case IncludeFile:
        case JobCount:
        case Status: {
            Flags<QueryMessage::Flag> extraQueryFlags;
            QueryMessage::Type type = QueryMessage::Invalid;
            bool resolve = true;
            switch (opt->option) {
            case CheckReindex: type = QueryMessage::CheckReindex; break;
            case Reindex: type = QueryMessage::Reindex; break;
            case Project: type = QueryMessage::Project; break;
            case FindFile: type = QueryMessage::FindFile; resolve = false; break;
            case Sources: type = QueryMessage::Sources; break;
            case IncludeFile: type = QueryMessage::IncludeFile; resolve = false; break;
            case Status: type = QueryMessage::Status; break;
            case ListSymbols: type = QueryMessage::ListSymbols; break;
            case FindSymbols: type = QueryMessage::FindSymbols; break;
            case JobCount: type = QueryMessage::JobCount; break;
            default: assert(0); break;
            }

            const char *arg = 0;
            if (optarg) {
                arg = optarg;
            } else if (optind < argc && argv[optind][0] != '-') {
                arg = argv[optind++];
            }
            if (arg) {
                Path p(arg);
                if (resolve && p.exists()) {
                    p.resolve();
                    addQuery(type, p, extraQueryFlags);
                } else {
                    addQuery(type, arg, extraQueryFlags);
                }
            } else {
                addQuery(type, String(), extraQueryFlags);
            }
            assert(!mCommands.isEmpty());
            if (type == QueryMessage::Project)
                projectCommands.append(std::static_pointer_cast<QueryCommand>(mCommands.back()));
            break; }
        case ListBuffers:
            addQuery(QueryMessage::SetBuffers);
            break;
        case SetBuffers: {
            const char *arg = 0;
            if (optarg) {
                arg = optarg;
            } else if (optind < argc && (argv[optind][0] != '-' || !strcmp(argv[optind], "-"))) {
                arg = argv[optind++];
            }
            String encoded;
            if (arg) {
                List<Path> paths;
                auto addBuffer = [&paths](const String &p) {
                    if (p.isEmpty())
                        return;
                    Path path(p);
                    if (path.resolve() && path.isFile()) {
                        paths.append(path);
                    } else {
                        fprintf(stderr, "\"%s\" doesn't seem to be a file.\n", p.constData());
                    }
                };

                if (!strcmp(arg, "-")) {
                    char buf[1024];
                    while (fgets(buf, sizeof(buf), stdin)) {
                        String arg(buf);
                        if (arg.endsWith('\n'))
                            arg.chop(1);
                        addBuffer(arg);
                    }
                } else {
                    for (const String &buffer : String(arg).split(';')) {
                        addBuffer(buffer);
                    }
                }
                Serializer serializer(encoded);
                serializer << paths;
            }
            addQuery(QueryMessage::SetBuffers, encoded);
            break; }
        case LoadCompilationDatabase: {
#if CLANG_VERSION_MAJOR > 3 || (CLANG_VERSION_MAJOR == 3 && CLANG_VERSION_MINOR > 3)
            Path dir;
            if (optarg) {
                dir = optarg;
            } else if (optind < argc && argv[optind][0] != '-') {
                dir = argv[optind++];
            } else {
                dir = Path::pwd();
            }
            dir.resolve(Path::MakeAbsolute);
            if (!dir.exists()) {
                fprintf(stderr, "%s does not seem to exist\n", dir.constData());
                return Parse_Error;
            }
            if (!dir.isDir()) {
                if (dir.isFile() && dir.endsWith("/compile_commands.json")) {
                    dir = dir.parentDir();
                } else {
                    fprintf(stderr, "%s is not a directory\n", dir.constData());
                    return Parse_Error;
                }
            }
            if (!dir.endsWith('/'))
                dir += '/';
            const Path file = dir + "compile_commands.json";
            if (!file.isFile()) {
                fprintf(stderr, "no compile_commands.json file in %s\n", dir.constData());
                return Parse_Error;
            }
            addCompile(dir, Escape_Auto);
#endif
            break; }
        case HasFileManager: {
            Path p;
            if (optarg) {
                p = optarg;
            } else if (optind < argc && argv[optind][0] != '-') {
                p = argv[optind++];
            } else {
                p = ".";
            }
            p.resolve(Path::MakeAbsolute);
            if (!p.exists()) {
                fprintf(stderr, "%s does not seem to exist\n", optarg);
                return Parse_Error;
            }
            if (p.isDir())
                p.append('/');
            addQuery(QueryMessage::HasFileManager, p);
            break; }
        case ProjectRoot: {
            Path p = optarg;
            if (!p.isDir()) {
                fprintf(stderr, "%s does not seem to be a directory\n", optarg);
                return Parse_Error;
            }

            p.resolve(Path::MakeAbsolute);
            mProjectRoot = p;
            break; }
        case Suspend: {
            Path p;
            if (optarg) {
                p = optarg;
            } else if (optind < argc && argv[optind][0] != '-') {
                p = argv[optind++];
            }
            if (!p.isEmpty()) {
                if (p != "clear" && p != "all") {
                    p.resolve(Path::MakeAbsolute);
                    if (!p.isFile()) {
                        fprintf(stderr, "%s is not a file\n", optarg);
                        return Parse_Error;
                    }
                }
            }
            addQuery(QueryMessage::Suspend, p);
            break; }
        case Compile: {
            String args = optarg;
            while (optind < argc) {
                if (!args.isEmpty())
                    args.append(' ');
                args.append(argv[optind++]);
            }
            if (args == "-" || args.isEmpty()) {
                char buf[16384];
                while (fgets(buf, sizeof(buf), stdin)) {
                    addCompile(Path::pwd(), buf, Escape_Do);
                }
            } else {
                addCompile(Path::pwd(), args, Escape_Dont);
            }
            break; }
        case IsIndexing:
            addQuery(QueryMessage::IsIndexing);
            break;
        case UnescapeCompileCommands:
            mEscapeMode = Escape_Do;
            break;
        case NoUnescapeCompileCommands:
            mEscapeMode = Escape_Dont;
            break;
        case NoSortReferencesByInput:
            mQueryFlags |= QueryMessage::NoSortReferencesByInput;
            break;
        case IsIndexed:
        case DumpFile:
        case CheckIncludes:
        case GenerateTest:
        case Diagnose:
        case FixIts: {
            Path p = optarg;
            if (!p.exists()) {
                fprintf(stderr, "%s does not exist\n", optarg);
                return Parse_Error;
            }

            if (!p.isAbsolute())
                p.prepend(Path::pwd());

            if (p.isDir()) {
                if (opt->option != IsIndexed) {
                    fprintf(stderr, "%s is not a file\n", optarg);
                    return Parse_Error;
                } else if (!p.endsWith('/')) {
                    p.append('/');
                }
            }
            p.resolve();
            Flags<QueryMessage::Flag> extraQueryFlags;
            QueryMessage::Type type = QueryMessage::Invalid;
            switch (opt->option) {
            case GenerateTest: type = QueryMessage::GenerateTest; break;
            case FixIts: type = QueryMessage::FixIts; break;
            case DumpFile: type = QueryMessage::DumpFile; break;
            case CheckIncludes: type = QueryMessage::DumpFile; extraQueryFlags |= QueryMessage::DumpCheckIncludes; break;
            case Diagnose: type = QueryMessage::Diagnose; break;
            case IsIndexed: type = QueryMessage::IsIndexed; break;
            default: assert(0); break;
            }

            addQuery(type, p, extraQueryFlags);
            break; }
        case AllDependencies: {
            String encoded;
            List<String> args;
            while (optind < argc && argv[optind][0] != '-') {
                args.append(argv[optind++]);
            }
            Serializer s(encoded);
            s << Path() << args;
            addQuery(QueryMessage::Dependencies, encoded);
            break; }
        case DumpFileMaps:
        case Dependencies: {
            Path p = optarg;
            if (!p.isFile()) {
                fprintf(stderr, "%s is not a file\n", optarg);
                return Parse_Error;
            }
            p.resolve();
            List<String> args;
            while (optind < argc && argv[optind][0] != '-') {
                args.append(argv[optind++]);
            }

            String encoded;
            Serializer s(encoded);
            s << p << args;
            addQuery(opt->option == DumpFileMaps ? QueryMessage::DumpFileMaps : QueryMessage::Dependencies, encoded);
            break; }
        case PreprocessFile: {
            Path p = optarg;
            p.resolve(Path::MakeAbsolute);
            if (!p.isFile()) {
                fprintf(stderr, "%s is not a file\n", optarg);
                return Parse_Error;
            }
            addQuery(QueryMessage::PreprocessFile, p);
            break; }

        case RemoveFile: {
            const Path p = Path::resolved(optarg, Path::MakeAbsolute);
            if (!p.exists()) {
                addQuery(QueryMessage::RemoveFile, p);
            } else {
                addQuery(QueryMessage::RemoveFile, optarg);
            }
            break; }
        case ReferenceName:
            addQuery(QueryMessage::ReferencesName, optarg);
            break;
        }
    }
    if (state == Error) {
        help(stderr, argv[0]);
        return Parse_Error;
    }

    if (optind < argc) {
        fprintf(stderr, "rc: unexpected option -- '%s'\n", argv[optind]);
        return Parse_Error;
    }

    if (!initLogging(argv[0], LogStderr, mLogLevel, logFile, logFlags)) {
        fprintf(stderr, "Can't initialize logging with %d %s %s\n",
                mLogLevel.toInt(), logFile.constData(), logFlags.toString().constData());
        return Parse_Error;
    }


    if (mCommands.isEmpty()) {
        help(stderr, argv[0]);
        return Parse_Error;
    }
    if (mCommands.size() > projectCommands.size()) {
        // If there's more than one command one likely does not want output from
        // the queryCommand (unless there's no arg specified for it). This is so
        // we don't have to pass a different flag for auto-updating project
        // using the current buffer but rather piggy-back on --project
        const int count = projectCommands.size();
        for (int i=0; i<count; ++i) {
            std::shared_ptr<QueryCommand> &cmd = projectCommands[i];
            if (!cmd->query.isEmpty()) {
                cmd->extraQueryFlags |= QueryMessage::Silent;
            }
        }
    }

    if (!logFile.isEmpty() || mLogLevel > LogLevel::Error) {
        Log l(LogLevel::Warning);
        l << argc;
        for (int i = 0; i < argc; ++i)
            l << " " << argv[i];
    }
    mArgc = argc;
    mArgv = argv;

    return Parse_Exec;
}