Angular 4 + Electron - 如何运行应用程序并观察变化(实时重新加载)

问题描述

我正在使用 Angular 4 创建一个 Electron 应用程序.我如何设置它以便它监视任何更改并实时重新加载它.

I am creating an Electron application using Angular 4. How can i set it up so that it watches for any changes and live reloads it.

package.json

package.json

{
  "name": "angular-electron",
  "version": "0.0.0",
  "license": "MIT",
  "main": "main.js",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e",
    "electron": "electron .",
    "electron-build": "ng build --prod && electron ."
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^4.2.4",
    "@angular/common": "^4.2.4",
    "@angular/compiler": "^4.2.4",
    "@angular/core": "^4.2.4",
    "@angular/forms": "^4.2.4",
    "@angular/http": "^4.2.4",
    "@angular/platform-browser": "^4.2.4",
    "@angular/platform-browser-dynamic": "^4.2.4",
    "@angular/router": "^4.2.4",
    "angular-svg-round-progressbar": "^1.1.0",
    "bulma": "^0.5.3",
    "core-js": "^2.4.1",
    "rxjs": "^5.4.2",
    "zone.js": "^0.8.14"
  },
  "devDependencies": {
    "@angular/cli": "1.4.1",
    "@angular/compiler-cli": "^4.2.4",
    "@angular/language-service": "^4.2.4",
    "@types/jasmine": "~2.5.53",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "~6.0.60",
    "codelyzer": "~3.1.1",
    "electron": "^1.7.6",
    "electron-packager": "^9.1.0",
    "jasmine-core": "~2.6.2",
    "jasmine-spec-reporter": "~4.1.0",
    "karma": "~1.7.0",
    "karma-chrome-launcher": "~2.1.1",
    "karma-cli": "~1.0.1",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.2",
    "ts-node": "~3.2.0",
    "tslint": "~5.3.2",
    "typescript": "~2.3.3"
  }
}

电子

const { app, BrowserWindow } = require('electron')

let win;

function createWindow () {
  // Create the browser window.
  win = new BrowserWindow({
    width: 600,
    height: 600,
    backgroundColor: '#ffffff',
    icon: `file://${__dirname}/dist/assets/logo.png`
  })

  win.loadURL(`file://${__dirname}/dist/index.html`)

  //// uncomment below to open the DevTools.
  // win.webContents.openDevTools()

  // Event when the window is closed.
  win.on('closed', function () {
    win = null
  })
}

// Create window on electron intialization
app.on('ready', createWindow)

// Quit when all windows are closed.
app.on('window-all-closed', function () {

  // On macOS specific close process
  if (process.platform !== 'darwin') {
    app.quit()
  }
})

app.on('activate', function () {
  // macOS specific close process
  if (win === null) {
    createWindow()
  }
})

谢谢.

目前，我每次都使用以下命令构建我的应用程序

Currently, i build my application every time using the following command

ng build --prod && electron .

这很累，所以我希望能够构建运行一个命令，以便它监视更改和实时重新加载.

This gets tiring, so i want to be able to build run one command so it watches for changes and live reloads.

推荐答案

你可以使用 electron-reload 用于热模块重新加载.它监听文件更改并重新加载电子应用程序.

You can use electron-reload for hot module reload. It listens on file changes and reloads the electron app.

只需将其添加到 package.json 中的 devDependencies.

Simply add it to the devDependencies in your package.json.

然后，你必须将它添加到你的 main.ts:

Then, you have to add it to your main.ts:

import { app, BrowserWindow, Menu } from 'electron';

let win, serve;
const args = process.argv.slice(1);
serve = args.some(val => val === '--serve');

if (serve) {
  require('electron-reload')(__dirname, {});
}

然后在你的包 json 中添加一个命令

Then add a command to your package json

"start": "webpack --watch",
"serve": "npm run build:main && electron ./dist --serve",
"build:main": "tsc main.ts --outDir dist && copyfiles package.json dist && cd dist && npm install --prod"

其中 build:main 是您编译项目的构建脚本.这会编译所有 Typescript 文件并将它们放入 dist 文件夹.然后，它运行 npm install 从 NPM 下载和安装模块.

where build:main is your build script to compile your project. This compiles all Typescript files and puts them into the dist folder. Afterwards, it runs npm install to download and install modules from NPM.

您需要模块捆绑程序 Webpack 才能运行.安装它

You need the module-bundler Webpack for this to run. Install it with

npm install --save-dev webpack

首先，在控制台中运行 npm start.然后，在第二个控制台中执行npm run serve.现在，它会侦听更改并在文件更改时重新编译.

First, in a console run npm start. Afterwards, in a second console executenpm run serve. Now, it listens for changes and recompiles on file changes.

tsc 代表 TypeScript 编译器.如果您使用 tsc 作为节点模块，请确保已安装它:

tsc stands for TypeScript compiler. If you're using tsc as a node module, make sure its installed:

npm install -g typescript

我目前将它用于具有相同设置(Angular 4，Electron)的项目，并且效果很好.

I use it currently for a project with the same setup (Angular 4, Electron) and it works perfectly.

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