const ipc = require('@achrinza/node-ipc') const DEFAULT_ID = process.env.VUE_CLI_IPC || 'vue-cli' const DEFAULT_IDLE_TIMEOUT = 3000 const DEFAULT_OPTIONS = { networkId: DEFAULT_ID, autoConnect: true, disconnectOnIdle: false, idleTimeout: DEFAULT_IDLE_TIMEOUT, namespaceOnProject: true } const PROJECT_ID = process.env.VUE_CLI_PROJECT_ID exports.IpcMessenger = class IpcMessenger { constructor (options = {}) { options = Object.assign({}, DEFAULT_OPTIONS, options) ipc.config.id = this.id = options.networkId ipc.config.retry = 1500 ipc.config.silent = true this.connected = false this.connecting = false this.disconnecting = false this.queue = null this.options = options this.listeners = [] this.disconnectTimeout = 15000 this.idleTimer = null // Prevent forced process exit // (or else ipc messages may not be sent before kill) process.exit = code => { process.exitCode = code } this._reset() } checkConnection () { if (!ipc.of[this.id]) { this.connected = false } } send (data, type = 'message') { this.checkConnection() if (this.connected) { if (this.options.namespaceOnProject && PROJECT_ID) { data = { _projectId: PROJECT_ID, _data: data } } ipc.of[this.id].emit(type, data) clearTimeout(this.idleTimer) if (this.options.disconnectOnIdle) { this.idleTimer = setTimeout(() => { this.disconnect() }, this.options.idleTimeout) } } else { this.queue.push(data) if (this.options.autoConnect && !this.connecting) { this.connect() } } } connect () { this.checkConnection() if (this.connected || this.connecting) return this.connecting = true this.disconnecting = false ipc.connectTo(this.id, () => { this.connected = true this.connecting = false this.queue && this.queue.forEach(data => this.send(data)) this.queue = null ipc.of[this.id].on('message', this._onMessage) }) } disconnect () { this.checkConnection() if (!this.connected || this.disconnecting) return this.disconnecting = true this.connecting = false const ipcTimer = setTimeout(() => { this._disconnect() }, this.disconnectTimeout) this.send({ done: true }, 'ack') ipc.of[this.id].on('ack', data => { if (data.ok) { clearTimeout(ipcTimer) this._disconnect() } }) } on (listener) { this.listeners.push(listener) } off (listener) { const index = this.listeners.indexOf(listener) if (index !== -1) this.listeners.splice(index, 1) } _reset () { this.queue = [] this.connected = false } _disconnect () { this.connected = false this.disconnecting = false ipc.disconnect(this.id) this._reset() } _onMessage (data) { this.listeners.forEach(fn => { if (this.options.namespaceOnProject && data._projectId) { if (data._projectId === PROJECT_ID) { data = data._data } else { return } } fn(data) }) } }