Current File : //data/old/usr/lib/node_modules/hexo/lib/extend/console.js
'use strict';
const Promise = require('bluebird');
const abbrev = require('abbrev');
/**
* Console plugin option
* @typedef {Object} Option
* @property {String} usage - The usage of a console command
* @property {{name: String, desc: String}[]} arguments - The description of each argument of a console command
* @property {{name: String, desc: String}[]} options - The description of each option of a console command
*/
class Console {
constructor() {
this.store = {};
this.alias = {};
}
/**
* Get a console plugin function by name
* @param {String} name - The name of the console plugin
* @returns {Function} - The console plugin function
*/
get(name) {
name = name.toLowerCase();
return this.store[this.alias[name]];
}
list() {
return this.store;
}
/**
* Register a console plugin
* @param {String} name - The name of console plugin to be registered
* @param {String} desc - More detailed information about a console command
* @param {Option} options - The description of each option of a console command
* @param {Function} fn - The console plugin to be registered
*/
register(name, desc, options, fn) {
if (!name) throw new TypeError('name is required');
if (!fn) {
if (options) {
if (typeof options === 'function') {
fn = options;
if (typeof desc === 'object') { // name, options, fn
options = desc;
desc = '';
} else { // name, desc, fn
options = {};
}
} else {
throw new TypeError('fn must be a function');
}
} else {
// name, fn
if (typeof desc === 'function') {
fn = desc;
options = {};
desc = '';
} else {
throw new TypeError('fn must be a function');
}
}
}
if (fn.length > 1) {
fn = Promise.promisify(fn);
} else {
fn = Promise.method(fn);
}
const c = fn;
this.store[name.toLowerCase()] = c;
c.options = options;
c.desc = desc;
this.alias = abbrev(Object.keys(this.store));
}
}
module.exports = Console;
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