loopback-boot/lib/plugin-loader.js

67 lines
2.1 KiB
JavaScript

// Copyright IBM Corp. 2016,2019. All Rights Reserved.
// Node module: loopback-boot
// This file is licensed under the MIT License.
// License text available at https://opensource.org/licenses/MIT
'use strict';
const util = require('util');
const utils = require('./utils');
const path = require('path');
const async = require('async');
const debug = require('debug')('loopback:boot:plugin-loader');
const PluginBase = require('./plugin-base');
const _ = require('lodash');
module.exports = function(options) {
return new PluginScript(options);
};
function PluginScript(options) {
PluginBase.call(this, options, 'pluginScripts', null);
}
util.inherits(PluginScript, PluginBase);
PluginScript.prototype.load = function(context) {
const options = this.options;
const appRootDir = options.rootDir;
// require directories
let pluginDirs = options.pluginDirs || []; // precedence
pluginDirs = pluginDirs.concat(path.join(appRootDir, 'plugins'));
utils.resolveRelativePaths(pluginDirs, appRootDir);
let pluginScripts = options.pluginScripts || [];
utils.resolveRelativePaths(pluginScripts, appRootDir);
pluginDirs.forEach(function(dir) {
pluginScripts = pluginScripts.concat(
utils.findScripts(dir, options.scriptExtensions),
);
const envdir = dir + '/' + options.env;
pluginScripts = pluginScripts.concat(
utils.findScripts(envdir, options.scriptExtensions),
);
});
pluginScripts = _.uniq(pluginScripts);
debug('Plugin scripts: %j', pluginScripts);
this.configure(context, pluginScripts);
return pluginScripts;
};
PluginScript.prototype.compile = function(context) {
const pluginScripts = context.configurations.pluginScripts;
context.instructions = context.instructions || {};
const plugins = context.instructions.pluginScripts = {};
const self = this;
pluginScripts.forEach(function(ps) {
debug('Loading %s', ps);
const factory = require(ps);
const handler = factory(self.options);
const name = handler.name || path.basename(ps, '.js');
debug('Loaded plugin name: %s', name);
plugins[name] = handler;
});
};