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[英]Pass custom environment parameters to @angular-builders/custom-webpack
[英]Angular Project fails compilation with @angular-builders/custom-webpack on scss files
我正在使用@angular-builders/custom-webpack來擴展scss
文件的編譯,以便使用postcss和插件postcss-modules
目前,當我嘗試為項目提供服務時,這些錯誤會顯示在終端中:
我認為問題是component.scss
文件被編譯了兩次,一個用於默認編譯器,另一個用於我的自定義 webpack 配置:
const path = require('path');
module.exports = {
module: {
rules: [
{
test: /\.component\.(css|sass|scss)$/,
exclude: [path.resolve('node_modules'), path.resolve('src/styles.scss')],
include: [path.resolve('src/app')],
use: [
'raw-loader',
{
loader: 'postcss-loader',
options: {
plugins: [
require('postcss-modules')({
generateScopedName: "[hash:base64:5]"
}),
require('postcss-import')
]
}
},
'sass-loader'
]
}
]
}
};
這是我的項目的回購:
https://github.com/gquinteros93/angular-css-modules
提前致謝。
我找到了解決方案。
我的問題是我如何擴展postcss-loader
,這要歸功於just-jeb 的解釋和這個例子: https://github.com/angular/angular-cli/issues/8427#issuecomment-576263052
我能夠擴展 postcss-loader。
而不是這樣做:
const path = require('path');
module.exports = {
module: {
rules: [
{
test: /\.component\.(css|sass|scss)$/,
exclude: [path.resolve('node_modules'), path.resolve('src/styles.scss')],
include: [path.resolve('src/app')],
use: [
'raw-loader',
{
loader: 'postcss-loader',
options: {
plugins: [
require('postcss-modules')({
generateScopedName: "[hash:base64:5]"
}),
require('postcss-import')
]
}
},
'sass-loader'
]
}
]
}
};
我必須做:
const postcssModules = require('postcss-modules');
module.exports = (config, options) => {
const scssRule = config.module.rules.find(x => x.test.toString().includes('scss'));
const postcssLoader = scssRule.use.find(x => x.loader === 'postcss-loader');
const pluginFunc = postcssLoader.options.plugins;
const newPluginFunc = function () {
var plugs = pluginFunc.apply(this, arguments);
plugs.splice(plugs.length - 1, 0, postcssModules({ generateScopedName: "[hash:base64:5]" }));
return plugs;
}
postcssLoader.options.plugins = newPluginFunc;
return config;
};
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