/**
* @fileOverview Grunt Config Helper Class to extend configs
* from an directory structure.
* by extending them from an directory structure.
* @author Simon Gattner <npm@0x38.de>
* @license MIT
* @version 1.0.0
*/
const fs = require('fs');
const path = require('path');
module.exports = class ExtendConfig {
/**
* @class ExtendConfig
* @classdesc Grunt Config Helper Class to extend configs
* from an directory structure.
* @param {string} dir The directory with config Files.
* @param {boolen} task The Grunt Task Name by filename if true.
*/
constructor(dir, task) {
this.dir = dir;
this.task = task || false;
}
/**
* Get files from a given directory.
* @function ExtendConfig.getFiles
* @return {array} The files from the given directory.
*/
getFiles() {
try {
return fs.readdirSync(this.dir).reduce((files, file) => {
const name = path.join(this.dir, file);
const isDirectory = fs.statSync(name).isDirectory();
Eif (!isDirectory) return [...files, name];
}, []);
} catch (error) {
return [];
}
}
/**
* Build Tasks from Objects in given files.
* @function ExtendConfig.getTasks
* @return {object} The required files from the given directory.
*/
getTasks() {
const _this = this;
let obj = {};
const arr = this.getFiles();
let namespace;
arr.forEach(function(value) {
namespace = value.split('/').pop().split('.')[0];
_this.extendObject(
obj,
(_this.task === true) ? '' : namespace + '_',
(_this.task === true) ? {[namespace]: require(value)} : require(value)
);
});
return obj;
}
/**
* Extend Object with given Object(s).
* @function ExtendConfig.extendObject
* @param {object} target The target to extend.
* @param {string} namespace The namespace prefix to extend prop.
* @param {object} args The sources to append.
* @return {object} The extended Object.
*/
extendObject(target, namespace, ...args) {
const sources = args;
sources.forEach(function(source) {
for (let prop in source) {
Eif (Object.prototype.hasOwnProperty.call(source, prop)) {
target[namespace + prop] = source[prop];
}
}
});
return target;
}
};
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