generator-ullalaa/app/util/config.js

Front-end web html5 boilerplate php template

/**================================
 * YeoPress config wrapper
 **===============================*/

// Requirements
var fs = require('fs'),
    path = require('path');

// Constructor
var Config = module.exports = function(locals, globals) {
    // Default config file name
    this.filename = '.ullalaa';

    // Load files
    this.global = this.load(path.join(process.env.HOME || process.env.USERPROFILE, this.filename)) || {};
    this.local = this.load() || {};

    // Set initial data
    if (locals) this.set(locals);
    if (globals) this.setGlobal(globals);
};

// Set local config values
Config.prototype.set = function(key, val) {
    if (typeof val !== 'undefined') {
        // Set a single key
        this.local[key] = val;
    } else {
        // Set multiple keys
        for (var i in key) this.local[i] = key[i];
    }
};

// Set global config values
Config.prototype.setGlobal = function(key, val) {
    if (typeof val !== 'undefined') {
        // Set a single key
        this.global[key] = val;
    } else {
        // Set multiple keys
        for (var i in key) this.global[i] = key[i];
    }
};

// Get config values, locals first
Config.prototype.get = function(key) {
    // Get a single key
    if (key) {
        if (typeof this.local[key] !== 'undefined') {
            return this.local[key];
        }
        if (typeof this.global[key] !== 'undefined') {
            return this.global[key];
        }
        return;
    }

    // Get all data
    var data = {};
    for (var g in this.global) data[g] = this.global[g];
    for (var l in this.local) data[l] = this.local[l];
    return data;
};

// Write the config to file
Config.prototype.write = function(filepath, data) {
    filepath = filepath || this.filename;
    data = data || this.get();
    fs.writeFileSync(filepath, JSON.stringify(data, null, '\t'));
};

// Load a config file
Config.prototype.load = function(filepath) {
    filepath = filepath || this.filename;
    if (fs.existsSync(filepath)) {
        var content = fs.readFileSync(filepath, {
            encoding: 'utf8'
        });
        return JSON.parse(content);
    }
    return null;
};