ripple-emulator/lib/cli/index.js

A browser based html5 mobile application development and testing tool

/*
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 */

var help = require('./help'),
    parser = require('./parser'),
    colors = require('colors');

// TODO: redundant, could be in it's own thing (other modules do the same)
colors.mode = "console";

function lookup(command, subcommand, options) {
    var module,
        method;

    try {
        module = require('./' + command);
    } catch (e) {
        console.error(('Unknown command: ' + command).red.bold);
        console.log();
        help.call();
        return;
    }

    method = subcommand && module[subcommand] ? subcommand : "call";
    module[method].apply(module, [command === "help" ? subcommand : options]);
}

module.exports = {
    interpret: function (args) {

        //convert path to always be an array.
        parser.map("path", function (v) { return v.forEach ? v : [v]; });

        var parsed = parser.parse(args),
            subcommand;

        if (parsed.commands.length > 0) {
            // NOTE: we parse multiple sub commands but only use the first one (for now)
            subcommand = parsed.commands.length > 1 ? parsed.commands[1] : null;
            lookup(parsed.commands[0], subcommand, parsed.options);
        }
        else {
            help.call();
        }
    }
};