beater-cli/lib/options-parser.js

A command-line interface for beater

"use strict";

var existsSync = require('exists-sync');
var path = require('path');
var fs = require('fs');
var loadRcOptions = function loadRcOptions(configFile) {
    if (!existsSync(configFile)) return {};
    var config = fs.readFileSync(configFile, { encoding: 'utf-8' });
    return JSON.parse(config) || {};
};
var loadPackageOptions = function loadPackageOptions(cwd) {
    var file = cwd + '/package.json';
    if (!existsSync(file)) return {};
    var packageJson = fs.readFileSync(file, { encoding: 'utf-8' });
    return JSON.parse(packageJson)['beater'] || {};
};
var loadCommandLineOptions = function loadCommandLineOptions(argv, execArgv) {
    var require = typeof argv['require'] === 'undefined' ? [] : [argv['require']];
    var execRequire = typeof argv['require'] === 'undefined' ? [] : [execArgv['require']];
    Array.prototype.push.apply(require, execRequire);
    return {
        reporter: argv['reporter'],
        dir: argv['dir'],
        ext: argv['ext'],
        procs: Number(argv['procs']),
        require: require.length === 0 ? undefined : require,
        help: argv['help'] || argv['h'],
        version: argv['version'] || argv['v'],
        files: argv._
    };
};
var removeUndefinedKeys = function removeUndefinedKeys(obj) {
    Object.keys(obj).forEach(function (key) {
        if (typeof obj[key] === 'undefined') {
            delete obj[key];
        }
    });
};
var optionsParser = function optionsParser(argv, execArgv, cwd) {
    var configFile = argv['beaterrc'] || path.join(cwd, '.beaterrc');
    var defaultOptions = {
        dir: 'test/',
        ext: '.js',
        files: undefined,
        procs: undefined,
        reporter: undefined,
        require: undefined
    };
    var rcOptions = loadRcOptions(configFile);
    removeUndefinedKeys(rcOptions);
    var packageOptions = loadPackageOptions(cwd);
    removeUndefinedKeys(packageOptions);
    var commandLineOptions = loadCommandLineOptions(argv, execArgv);
    removeUndefinedKeys(commandLineOptions);
    return Object.assign(defaultOptions, rcOptions, packageOptions, commandLineOptions);
};
exports.optionsParser = optionsParser;