【发布时间】:2016-05-23 07:39:43
【问题描述】:
我正在设置一个基本的 Webpack 安装,并希望使用 PostCSS 和 PreCSS 插件在 @imported 文件中自动重新加载预处理的 CSS。目前,如果我修改并保存 @imported 文件,浏览器不会刷新(下例中的 body.css)。如果我随后保存根引用的 CSS 文件 (styles.css),则浏览器会刷新并反映对 @imported 文件所做的任何更改。
我尝试过使用可配置的 webpack-dev-server,并使用 server.js。我尝试过不安装和安装热模型重载 (HMR)。
有没有办法让 webpack 监视 @imported CSS 文件,还是我从根本上错过了什么?
package.json
"dependencies": {
"react": "^0.14.0",
"react-dom": "^0.14.0"
},
"devDependencies": {
"autoprefixer": "^6.3.1",
"css-loader": "^0.23.1",
"extract-text-webpack-plugin": "^1.0.1",
"postcss-loader": "^0.8.0",
"postcss-scss": "^0.1.3",
"precss": "^1.4.0",
"react-hot-loader": "^1.3.0",
"style-loader": "^0.13.0",
"webpack": "^1.12.13",
"webpack-dev-server": "^1.14.1"
},
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"start": "node server.js",
"start-dev-server": "webpack-dev-server 'webpack-dev-server/client?/' --host 0.0.0.0 --port 9090 --progress --colors",
"build": "echo \"Build hasn't been specified yet\" && exit 1"
},
webpack.config.js
/*global require module __dirname*/
var path = require('path'),
webpack = require('webpack'),
ExtractTextPlugin = require('extract-text-webpack-plugin'),
autoprefixer = require('autoprefixer'),
precss = require('precss');
module.exports = {
entry: [
'webpack-dev-server/client?http://localhost:9090',
'webpack/hot/only-dev-server',
'./entry.js'
],
output: {
path: path.join(__dirname, 'dist'),
filename: 'bundle.js',
publicPath: '/static/'
},
devtool: 'source-map',
module: {
loaders: [
{
test: /\.css$/i,
loaders: ExtractTextPlugin.extract('style-loader', 'css-loader?sourceMap&modules&importLoaders=1!postcss-loader')
}
]
},
postcss: function() {
return [precss, autoprefixer];
},
plugins: [
// Set the name of the single CSS file here.
new ExtractTextPlugin('main.css', { allChunks: true }),
new webpack.HotModuleReplacementPlugin()
]
};
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<link rel="stylesheet" type="text/css" href="/static/main.css" />
</head>
<body>
<script src="http://localhost:9090/webpack-dev-server.js"></script>
<script type="text/javascript" src="/static/bundle.js" charset="utf-8"></script>
</body>
</html>
entry.js
require("./styles.css");
document.write(require("./content.js"));
styles.css
@import "body.css";
body {
/*background: yellow; */
font-size: 30px;
}
div {
display: flex;
}
body.css
$color: yellow;
body {
background: $color;
}
div {
color: white;
a {
color: green;
}
}
div {
display: flex;
}
【问题讨论】:
-
作为附加说明,如果我使用 HMR 并保存根 styles.css,我会收到消息:以下模块无法热更新:(它们需要完全重新加载!)我必须刷新页面。如果我不使用 HMR,那么它会刷新很好,尽管只有在保存根 styles.css 时才会刷新。
标签: webpack reload webpack-dev-server postcss webpack-hmr