【发布时间】：2020-07-02 04:10:02
【问题描述】：
我目前正在创建一个npm package。这基本上是一个使用 SCSS 添加样式的 React 组件。当我测试它时，类名在那里，但没有应用任何样式。
这是package 的存储库。我使用单独的 webpack 配置来构建组件所在的特定文件夹。
这是我正在使用的 webpack 配置：
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const EsLintFormatter = require('eslint-formatter-pretty');
const path = require('path');
const pkg = require('../../package.json');
const { SRC_PATH, BUILD_PATH } = require('./constants');
const setStyleLoaders = require('./style-loaders');
const alias = require('./alias');
const packageName = pkg.name;
module.exports = ({ NODE_ENV }) => ({
mode: 'production',
entry: `${SRC_PATH}/components/Carousel/Carousel.js`,
output: {
path: BUILD_PATH,
filename: 'index.js',
library: packageName,
libraryTarget: 'commonjs2',
umdNamedDefine: true,
publicPath: '/build/',
},
node: {
net: 'empty',
tls: 'empty',
dns: 'empty',
},
resolve: {
alias: {
...alias,
react: path.resolve(__dirname, './node_modules/react'),
'react-dom': path.resolve(__dirname, './node_modules/react-dom'),
},
},
externals: {
react: 'react',
reactDom: 'react-dom',
},
module: {
rules: [
{
test: /\.js$/,
exclude: /(node_modules)/,
use: [
{ loader: 'babel-loader' },
{
loader: 'eslint-loader',
options: {
formatter: EsLintFormatter,
},
},
],
},
{
test: /\.(sa|sc|c)ss$/,
use: setStyleLoaders(NODE_ENV),
},
{
test: /\.(png|pje?g|gif|svg)$/,
use: [
{
loader: 'file-loader',
options: {
outputPath: 'images',
},
},
],
},
{
test: /\.(woff|woff2|tff|otf|eot)$/,
use: [
{
loader: 'file-loader',
options: {
outputPath: 'fonts',
},
},
],
},
],
},
plugins: [
new CleanWebpackPlugin(),
new MiniCssExtractPlugin({ filename: 'index.css' }),
],
});
...这是我的 package.json
{
"name": "react-clear-carousel",
"version": "0.1.0-beta.1",
"description": "A test",
"main": "build/index.js",
"scripts": {
"start": "cross-env NODE_ENV=development webpack-dev-server --env.NODE_ENV=development --config config/webpack/webpack.config.js",
"build": "cross-env NODE_ENV=production webpack --env.NODE_ENV=production --config config/webpack/webpack.config.publish.js",
"stylelint": "stylelint 'src/**/*.scss' --config stylelint.config.js; exit 0",
"eslint": "eslint 'src/**/*.js'; exit 0",
"es:fix": "eslint 'src/**/*.js' --fix",
"style:fix": "stylelint 'src/**/*.scss' --fix",
"lint": "npm run eslint && npm run stylelint",
"publish:beta": "npm publish --tag=beta",
"test": "jest"
},
"repository": {
"type": "git",
"url": "git+https://github.com/RobCC/web-playground.git"
},
"author": "robcc",
"license": "ISC",
"bugs": {
"url": "https://github.com/RobCC/web-playground/issues"
},
"files": [
"dist"
],
"jest": {
"setupFilesAfterEnv": [
"<rootDir>/config/jest/setup.js"
],
"moduleNameMapper": {
"\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "<rootDir>/config/jest/fileMock.js",
"\\.(css|less|scss)$": "identity-obj-proxy",
"^~/(.*)": "<rootDir>/$1",
"^#/(.*)": "<rootDir>/src/$1"
}
},
"homepage": "https://github.com/RobCC/web-playground#readme",
"peerDependencies": {
"react": "^16.13.1",
"react-dom": "^16.13.1",
"prop-types": "^15.7.2"
},
"devDependencies": {
"@babel/cli": "^7.8.4",
"@babel/core": "^7.9.0",
"@babel/plugin-proposal-class-properties": "^7.8.3",
"@babel/plugin-proposal-export-default-from": "^7.8.3",
"@babel/plugin-proposal-export-namespace-from": "^7.8.3",
"@babel/preset-env": "^7.9.0",
"@babel/preset-react": "^7.9.1",
"@types/jest": "^25.1.4",
"@types/node": "^13.9.2",
"@types/react": "^16.9.25",
"@types/react-dom": "^16.9.5",
"@welldone-software/why-did-you-render": "^4.0.5",
"autoprefixer": "^9.7.4",
"babel-eslint": "^10.1.0",
"babel-loader": "^8.1.0",
"chalk": "^3.0.0",
"clean-webpack-plugin": "^3.0.0",
"core-js": "^3.6.4",
"cross-env": "^7.0.2",
"css-loader": "^3.4.2",
"cssnano": "^4.1.10",
"enzyme": "^3.11.0",
"enzyme-adapter-react-16": "^1.15.2",
"eslint": "^6.8.0",
"eslint-config-airbnb": "^18.1.0",
"eslint-formatter-pretty": "^3.0.1",
"eslint-import-resolver-alias": "^1.1.2",
"eslint-loader": "^3.0.3",
"eslint-plugin-import": "^2.20.1",
"eslint-plugin-jsx-a11y": "^6.2.3",
"eslint-plugin-react": "^7.19.0",
"eslint-plugin-react-hooks": "^2.5.1",
"file-loader": "^6.0.0",
"html-webpack-plugin": "^3.2.0",
"identity-obj-proxy": "^3.0.0",
"jest": "^25.1.0",
"log-symbols": "^3.0.0",
"mini-css-extract-plugin": "^0.9.0",
"postcss-loader": "^3.0.0",
"pr*op-types": "^15.7.2",
"react": "^16.13.1",
"react-dom": "^16.13.1",
"regenerator-runtime": "^0.13.5",
"sass": "^1.26.3",
"sass-loader": "^8.0.2",
"style-loader": "^1.1.3",
"stylelint": "^13.2.1",
"stylelint-config-recommended": "^3.0.0",
"stylelint-formatter-pretty": "^2.0.0",
"stylelint-scss": "^3.16.0",
"stylelint-webpack-plugin": "^1.2.3",
"ts-loader": "^6.2.1",
"typescript": "^3.8.3",
"webpack": "^4.42.0",
"webpack-cli": "^3.3.11",
"webpack-dev-server": "^3.10.3"
},
"dependencies": {
"weak-key": "^1.0.2"
}
}
这是测试发布包时的结果：
编辑 1：
devtools 中的网络和控制台选项卡上没有错误。我也找不到加载的文件，即使它在包中。 js文件好像没有使用，但是应该使用。
编辑 2：
感谢您为我指明正确的方向！
我添加了 import 'react-clear-carousel/build/index.css'; 以包含我的包中的 CSS 文件。我现在可以看到该文件（在 devtools 上），但是由于 css-loader 正在对其进行模块化并添加额外的后缀和前缀（即使它已经拥有它们），因此没有应用样式，因此具有与我的组件不同的类名有。
eg. 我的组件渲染为<div class="carousel_swimlane--kXSjh">，但DOM 中的样式命名为index_carousel_swimlane--kXSjh--2C。
我想现在的问题是，我如何告诉 Webpack 按原样传递这个 CSS？如果有办法让我在无需其他人更改 Webpack 配置的情况下交付 CSS 文件。
【问题讨论】：
-
疑难解答：你的样式表加载成功了吗？网络选项卡中没有 404？下一个最简单的测试是清除浏览器缓存。
-
“网络”选项卡中没有 404 错误。我也找不到加载的文件，即使它在包中。好像js文件没有使用，但是应该
-
听起来资产要么编译为空，要么未加载。您需要验证内容是否存在。
-
CSS 文件在那里。如果我在 node_modules 中检查它的文件夹，CSS 和 JS 文件都在那里。并且由于类名被正确应用，这意味着 CSS 文件就在那里。代码库（它有我的包作为依赖项）只是没有应用这些样式
标签： javascript reactjs npm webpack