express-template-reload

Tiny webpack plugin that make express template(like handlebars) support reload page when changed.

This loader is automatically added to this code to support reload page when template changed.

Installation

npm install --save-dev express-template-reload

PS: The temeplate should use loader too, such as raw-loader,html-loader and so on.

Options

You can pass a hash of configuration options to express-template-reload. Allowed values are as follows

Name	Type	Default	Description
enable	{Boolean}	true	Enable this loader or disable, production should disable
name	{String}		The template name, like: index.hbs
jsRootDir	{String}		The js relative root path relative project root path, like: client/js/
templateRootDir	{String}		The template relative root path relative project root path, like: client/view/
nameFormat	{Function}		Allows format template name base on the JS file name
jsHotAccept	{Boolean}	true	If true add module.hot.accept() to the bottom of modules allows js hot module replace
onlyJS	{Boolean}	false	If true just add module.hot.accept() to the bottom of modules allows js hot module replace, and will not support template reload

Why use jsRootDir, templateRootDir

In a multiple-page web application, a webpack entry file should have a template, so use them to calculate the path of the template relative to js. And determines whether the template file exists, if not, the current file is a not entry file, also nothing will not modify.

If you have a better way to judge the current JS is not a webpack entry file, please tell me as soon as possible, thank you.

For example

File directory structure

--client
----js
------home
--------index.js
...
----view
------home
--------index.hbs
...

As we konw if you want to support JS hmr, you should add this

// home/index.js
if (module.hot) {
    //js hmr
    module.hot.accept();
}

If you want to support reload page when template changed.

// client/js/home/index.js
if (module.hot) {
    // template reload
    require('../../../client/view/home/index.hbs')
    module.hot.accept('../../../client/view/home/index.hbs', function () {
        window.location.reload();
    })
    //js hmr
    module.hot.accept();
}

This loader is automatically added to this code to support reload page when template changed.

Usage

// webpack.config.js
 
var webpack = require('webpack');
 
module.exports = {
  entry: [
    'webpack-hot-middleware/client?reload=true',
    './entry.js'
  ],
  output: {
    filename: 'bundle.js'
  },
  plugins: [
    new webpack.NoErrorsPlugin()
  ],
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use:[{
          loader: 'babel-loader',
        },{
          loader: 'express-template-reload',
          options: {
            enable: process.env.NODE_ENV === 'local', //default true
            name: '[name].hbs',
            jsRootDir: 'client/js/',
            templateRootDir: 'client/views/',
            //nameFormat: name => name.substr(name.indexOf('views/') + 6, name.length),
            jsHotAccept: true
          }
        }],
      },
      {
        test: /\.hbs$/,
        use: {
          loader: 'raw-loader'
        },
        exclude: /node_modules/,
      }
    ]
  }
};