我已经从默认的create-react-app项目中退出，并尝试创建第二个
我想转换类似于
这里是
我也尝试将其复制到
maintenance.html页面，使Webpack可以像默认情况下使用public/index.html一样将其注入。我已经阅读了许多问题和HtmlWebpackPlugin的文档，它指出应该很容易实现：// Makes some environment variables available in index.html.
// The public URL is available as %PUBLIC_URL% in index.html, e.g.:
// <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
// In development, this will be an empty string.
new InterpolateHtmlPlugin(envObject),
// Generates an `index.html` file with the <script> injected.
new HtmlWebpackPlugin({
inject: true,
template: paths.appHtml,
minify: {
minifyCSS: true,
},
}),
转换为：
// Makes some environment variables available in index.html.
// The public URL is available as %PUBLIC_URL% in index.html, e.g.:
// <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
// In development, this will be an empty string.
new InterpolateHtmlPlugin(envObject),
// Generates an `index.html` file with the <script> injected.
new HtmlWebpackPlugin({
inject: true,
template: paths.appHtml,
minify: {
minifyCSS: true,
},
}),
new HtmlWebpackPlugin({
inject: true,
template: paths.appHtml,
filename: '/public/maintenance.html',
minify: {
minifyCSS: true,
},
}),
我想转换类似于
%PUBLIC_URL%的变量为它们的实际值时，总是会出现以下错误：URIError: Failed to decode param '/%PUBLIC_URL%/scripts/modernizr.custom.js'。尽管在public/index.html中它们工作得很好。你有什么想法？我确保没有设置任何规则来处理其他.html文件；因为我看到一些人在这里混淆了。我一直在调整设置并查阅GitHub问题，但感觉自己正在打转。谢谢！以下是当前的webpack.config.dev.js文件：/* THIS FILE HAS BEEN EDITED A BIT FROM https://github.com/facebookincubator/create-react-app/blob/master/packages/react-scripts/config/webpack.config.dev.js */
const autoprefixer = require('autoprefixer');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin');
const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
const WatchMissingNodeModulesPlugin = require('react-dev-utils/WatchMissingNodeModulesPlugin');
const getClientEnvironment = require('./env');
const paths = require('./paths');
// Custom
const cssnano = require('cssnano');
const flexbugs = require('postcss-flexbugs-fixes');
const svgFragments = require('postcss-svg-fragments');
const fs = require('fs');
// Don't show deprecations
process.noDeprecation = true;
// @remove-on-eject-begin
// `path` is not used after eject - see https://github.com/facebookincubator/create-react-app/issues/1174
const path = require('path');
// @remove-on-eject-end
// Webpack uses `publicPath` to determine where the app is being served from.
// In development, we always serve from the root. This makes config easier.
const publicPath = '/';
// `publicUrl` is just like `publicPath`, but we will provide it to our app
// as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
// Omit trailing slash as %PUBLIC_PATH%/xyz looks better than %PUBLIC_PATH%xyz.
const publicUrl = '';
// Get environment variables to inject into our app.
const env = getClientEnvironment(publicUrl);
// Get environment object passed down to HTML template
const envObject = env.raw;
// Read SVG sprite
const svgSprite = fs.readFileSync(`${paths.appPublic}/images/sprite.svg`, 'utf8');
// Add SVG output to variable object passed to HTML template
envObject.SVG_SPRITE = svgSprite;
// This is the development configuration.
// It is focused on developer experience and fast rebuilds.
// The production configuration is different and lives in a separate file.
module.exports = {
/// You may want 'eval' instead if you prefer to see the compiled output in DevTools.
// See the discussion in https://github.com/facebookincubator/create-react-app/issues/343.
devtool: 'eval',
// These are the "entry points" to our application.
// This means they will be the "root" imports that are included in JS bundle.
// The first two entry points enable "hot" CSS and auto-refreshes for JS.
entry: [
// Include an alternative client for WebpackDevServer. A client's job is to
// connect to WebpackDevServer by a socket and get notified about changes.
// When you save a file, the client will either apply hot updates (in case
// of CSS changes), or refresh the page (in case of JS changes). When you
// make a syntax error, this client will display a syntax error overlay.
// Note: instead of the default WebpackDevServer client, we use a custom one
// to bring better experience for Create React App users. You can replace
// the line below with these two lines if you prefer the stock client:
// require.resolve('webpack-dev-server/client') + '?/',
// require.resolve('webpack/hot/dev-server'),
require.resolve('react-dev-utils/webpackHotDevClient'),
// Polyfills
require.resolve('./polyfills'),
// Finally, this is your app's code:
paths.appIndexJs,
// We include the app code last so that if there is a runtime error during
// initialization, it doesn't blow up the WebpackDevServer client, and
// changing JS code would still trigger a refresh.
],
output: {
// Next line is not used in dev but WebpackDevServer crashes without it:
path: paths.appBuild,
// Add /* filename */ comments to generated require()s in the output.
pathinfo: true,
// This does not produce a real file. It's just the virtual path that is
// served by WebpackDevServer in development. This is the JS bundle
// containing code from all our entry points, and the Webpack runtime.
filename: 'static/js/bundle.js',
// This is the URL that app is served from. We use "/" in development.
publicPath: publicPath,
},
externals: {
gsap: 'TweenMax',
},
resolve: {
// This allows you to set a fallback for where Webpack should look for modules.
// We read `NODE_PATH` environment variable in `paths.js` and pass paths here.
// We placed these paths second because we want `node_modules` to "win"
// if there are any conflicts. This matches Node resolution mechanism.
// https://github.com/facebookincubator/create-react-app/issues/253
modules: ['node_modules'].concat(paths.nodePaths),
// These are the reasonable defaults supported by the Node ecosystem.
// We also include JSX as a common component filename extension to support
// some tools, although we do not recommend using it, see:
// https://github.com/facebookincubator/create-react-app/issues/290
extensions: ['.js', '.json', '.jsx'],
alias: {
react: path.resolve('./node_modules/react'),
// Support React Native Web
// https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
'react-native': 'react-native-web',
},
},
// @remove-on-eject-begin
// Resolve loaders (webpack plugins for CSS, images, transpilation) from the
// directory of `react-scripts` itself rather than the project directory.
resolveLoader: {
modules: [
// Lerna hoists everything, so we need to look in our app directory
paths.appNodeModules,
],
},
module: {
rules: [
// Disable require.ensure as it's not a standard language feature.
{ parser: { requireEnsure: false } },
{
test: /\.(js|jsx)$/,
enforce: 'pre',
use: [
{
// @remove-on-eject-end
loader: 'eslint-loader',
},
],
include: paths.appSrc,
},
// ** ADDING/UPDATING LOADERS **
// The "url" loader handles all assets unless explicitly excluded.
// The `exclude` list *must* be updated with every change to loader extensions.
// When adding a new loader, you must add its `test`
// as a new entry in the `exclude` list for "url" loader.
// "file" loader makes sure those assets get served by WebpackDevServer.
// When you `import` an asset, you get its (virtual) filename.
// In production, they would get copied to the `build` folder.
{
test: /\.(ico|jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2)(\?.*)?$/,
loader: 'file-loader',
options: {
name: 'static/media/[name].[hash:8].[ext]',
},
},
// "url" loader works like "file" loader except that it embeds assets
// smaller than specified limit in bytes as data URLs to avoid requests.
// A missing `test` is equivalent to a match.
{
test: /\.(mp4|webm|wav|mp3|m4a|aac|oga)(\?.*)?$/,
loader: 'url-loader',
options: {
limit: 10000,
name: 'static/media/[name].[hash:8].[ext]',
},
},
// Process JS with Babel.
{
test: /\.(js|jsx)$/,
include: paths.appSrc,
loader: 'babel-loader',
options: {
// @remove-on-eject-end
// This is a feature of `babel-loader` for webpack (not Babel itself).
// It enables caching results in ./node_modules/.cache/babel-loader/
// directory for faster rebuilds.
cacheDirectory: true,
},
},
{
test: /\.less$/,
use: [
{
loader: 'style-loader',
},
{
loader: 'css-loader',
options: {
sourceMap: true,
}
},
{
loader: 'postcss-loader',
options: {
sourceMap: true,
ident: 'postcss', // https://webpack.js.org/guides/migrating/#complex-options
plugins: () => [
autoprefixer({
browsers: [
'>2%',
'last 2 versions',
'not ie < 11',
],
cascade: false,
}),
cssnano({
discardUnused: false,
zindex: false,
reduceIdents: false,
mergeIdents: false,
}),
flexbugs(),
svgFragments(),
],
},
},
{
loader: 'less-loader',
options: {
sourceMap: true,
}
},
],
},
],
},
plugins: [
// Makes some environment variables available in index.html.
// The public URL is available as %PUBLIC_URL% in index.html, e.g.:
// <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
// In development, this will be an empty string.
new InterpolateHtmlPlugin(envObject),
// Generates an `index.html` file with the <script> injected.
new HtmlWebpackPlugin({
inject: true,
template: paths.appHtml,
minify: {
minifyCSS: true,
},
}),
// Makes some environment variables available to the JS code, for example:
// if (process.env.NODE_ENV === 'development') { ... }. See `./env.js`.
new webpack.DefinePlugin(env.stringified),
// This is necessary to emit hot updates (currently CSS only):
new webpack.HotModuleReplacementPlugin(),
// Watcher doesn't work well if you mistype casing in a path so we use
// a plugin that prints an error when you attempt to do this.
// See https://github.com/facebookincubator/create-react-app/issues/240
new CaseSensitivePathsPlugin(),
// If you require a missing module and then `npm install` it, you still have
// to restart the development server for Webpack to discover it. This plugin
// makes the discovery automatic so you don't have to restart.
// See https://github.com/facebookincubator/create-react-app/issues/186
new WatchMissingNodeModulesPlugin(paths.appNodeModules),
],
// Some libraries import Node modules but don't use them in the browser.
// Tell Webpack to provide empty mocks for them so importing them works.
node: {
fs: 'empty',
net: 'empty',
tls: 'empty',
},
// Turn off performance hints during development because we don't do any
// splitting or minification in interest of speed. These warnings become
// cumbersome.
performance: {
hints: false,
},
};
这里是
public/index.html的HTML代码。<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="theme-color" content="#ffffff">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="format-detection" content="telephone=no">
<link id="js-favicon" rel="icon" type="image/png" href="%PUBLIC_URL%/favicon-32x32.png" sizes="32x32">
<link rel="manifest" href="%PUBLIC_URL%/manifest.json">
<link rel="apple-touch-icon" sizes="180x180" href="%PUBLIC_URL%/apple-touch-icon.png">
<link rel="mask-icon" href="%PUBLIC_URL%/safari-pinned-tab.svg" color="#0081c6">
<script src="%PUBLIC_URL%/scripts/modernizr.custom.js"></script>
<title></title>
</head>
<body>
<!-- SVG sprite -->
<div style="border: 0px; clip: rect(0px 0px 0px 0px); height: 0px; overflow: hidden; padding: 0px; position: absolute; width: 0px;">%SVG_SPRITE%</div>
<div id="app" style="overflow: hidden;"></div>
</body>
</html>
我也尝试将其复制到
public/maintenance.html，但没有成功。
