const app = require('../../../../app') require('@overleaf/logger').logger.level('error') const settings = require('@overleaf/settings') module.exports = { running: false, initing: false, callbacks: [], ensureRunning(callback) { if (this.running) { return callback() } else if (this.initing) { return this.callbacks.push(callback) } this.initing = true this.callbacks.push(callback) app.listen(settings.internal.docstore.port, '127.0.0.1', error => { if (error != null) { throw error } this.running = true for (callback of Array.from(this.callbacks)) { callback() } }) }, }