'use strict';
const cleanBaseURL = require('clean-base-url');
const logger = require('heimdalljs-logger')('ember-cli:broccoli-watcher');
class WatcherAddon {
/**
* This addon is used to set the default response headers for the assets that will be
* served by the next middleware. It waits for the watcher promise to resolve before
* setting the response headers.
*
* @class WatcherAddon
* @constructor
*/
constructor(project) {
this.project = project;
this.name = 'broccoli-watcher';
}
serverMiddleware(options) {
let app = options.app;
options = options.options;
let broccoliMiddleware = options.middleware || require('broccoli-middleware').watcherMiddleware;
let middleware = broccoliMiddleware(options.watcher, {
liveReloadPath: '/ember-cli-live-reload.js',
autoIndex: false, // disable directory listings
});
let baseURL = options.rootURL === '' ? '/' : cleanBaseURL(options.rootURL || options.baseURL);
logger.info('serverMiddleware: baseURL: %s', baseURL);
app.use((req, res, next) => {
let oldURL = req.url;
let url = req.serveUrl || req.url;
logger.info('serving: %s', url);
let actualPrefix = req.url.slice(0, baseURL.length - 1); // Don't care
let expectedPrefix = baseURL.slice(0, baseURL.length - 1); // about last slash
if (actualPrefix === expectedPrefix) {
let urlToBeServed = url.slice(actualPrefix.length); // Remove baseURL prefix
req.url = urlToBeServed;
logger.info('serving: (prefix stripped) %s, was: %s', urlToBeServed, url);
// Find asset and set response headers, if no file has been found, reset url for proxy stuff
// that comes afterwards
middleware(req, res, err => {
req.url = oldURL;
if (err) {
logger.error('err', err);
}
next(err);
});
} else {
logger.info('prefixes didn\'t match, passing control on: (actual:%s expected:%s)', actualPrefix, expectedPrefix);
next();
}
});
}
}
module.exports = WatcherAddon;