Javascript 如何复制要生成的文件夹中的文件?
我在Javascript 如何复制要生成的文件夹中的文件?,javascript,webpack,webpack-4,Javascript,Webpack,Webpack 4,我在图标文件夹中有几个图像: 并希望将所有png文件复制到build文件夹。 我试过: new CopyWebpackPlugin([ { from: "src/manifest.json", transform: function(content, path) { // generates the manifest file using the package.json informations return Buffer.from(
图标
文件夹中有几个图像:
并希望将所有png
文件复制到build
文件夹。
我试过:
new CopyWebpackPlugin([
{
from: "src/manifest.json",
transform: function(content, path) {
// generates the manifest file using the package.json informations
return Buffer.from(
JSON.stringify({
description: process.env.npm_package_description,
version: process.env.npm_package_version,
...JSON.parse(content.toString())
})
);
}
},
{ from: "icons", to: "./"}
]),
但它不起作用。我做错了什么
更新
配置文件的内容:
var webpack = require("webpack"),
path = require("path"),
fileSystem = require("fs"),
env = require("./utils/env"),
CleanWebpackPlugin = require("clean-webpack-plugin").CleanWebpackPlugin,
CopyWebpackPlugin = require("copy-webpack-plugin"),
HtmlWebpackPlugin = require("html-webpack-plugin"),
WriteFilePlugin = require("write-file-webpack-plugin");
// load the secrets
var alias = {};
var secretsPath = path.join(__dirname, ("secrets." + env.NODE_ENV + ".js"));
var fileExtensions = ["jpg", "jpeg", "png", "gif", "eot", "otf", "svg", "ttf", "woff", "woff2"];
if (fileSystem.existsSync(secretsPath)) {
alias["secrets"] = secretsPath;
}
var options = {
mode: process.env.NODE_ENV || "development",
entry: {
popup: path.join(__dirname, "src", "js", "popup.js"),
options: path.join(__dirname, "src", "js", "options.js"),
background: path.join(__dirname, "src", "js", "background.js")
},
output: {
path: path.join(__dirname, "build"),
filename: "[name].bundle.js"
},
module: {
rules: [
{
test: /\.css$/,
loader: "style-loader!css-loader",
exclude: /node_modules/
},
{
test: new RegExp('.(' + fileExtensions.join('|') + ')$'),
loader: "file-loader?name=[name].[ext]",
exclude: /node_modules/
},
{
test: /\.html$/,
loader: "html-loader",
exclude: /node_modules/
}
]
},
resolve: {
alias: alias
},
plugins: [
// clean the build folder
new CleanWebpackPlugin(),
// expose and write the allowed env vars on the compiled bundle
new webpack.EnvironmentPlugin(["NODE_ENV"]),
new CopyWebpackPlugin([{
from: "src/manifest.json",
transform: function (content, path) {
// generates the manifest file using the package.json informations
return Buffer.from(JSON.stringify({
description: process.env.npm_package_description,
version: process.env.npm_package_version,
...JSON.parse(content.toString())
}))
}
},
{ from: "icons", to: "./"}
]),
new HtmlWebpackPlugin({
template: path.join(__dirname, "src", "popup.html"),
filename: "popup.html",
chunks: ["popup"]
}),
new HtmlWebpackPlugin({
template: path.join(__dirname, "src", "options.html"),
filename: "options.html",
chunks: ["options"]
}),
new HtmlWebpackPlugin({
template: path.join(__dirname, "src", "background.html"),
filename: "background.html",
chunks: ["background"]
}),
new WriteFilePlugin()
]
};
if (env.NODE_ENV === "development") {
options.devtool = "cheap-module-eval-source-map";
}
module.exports = options;
文件加载器应该适合您的用例,而不是尝试
CopyWebpackPlugin
module.exports = {
module: {
rules: [
{
test: /\.(png|jpe?g|gif)$/i,
loader: 'file-loader',
options: {
name: 'build/[name].[ext]',
},
},
],
},
};
更新:
试试这个代码沙盒,对我来说有一些小的调整:
下面是我通过上面的配置获得的构建输出:
我通常只使用npm srcipt通过命令行调用copy。例如,
“copy_files”:“cp./src/icons./build/icons”
,我希望每次都复制icons文件夹中的文件,即使我没有将这些文件包含在javascript中,这也是我选择复制插件的原因。您遇到了什么错误?它似乎对我有用。