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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const path = require("path");
const OptionsDefaulter = require("./OptionsDefaulter");
const Template = require("./Template");
const isProductionLikeMode = options => {
return options.mode === "production" || !options.mode;
};
const isWebLikeTarget = options => {
return options.target === "web" || options.target === "webworker";
};
const getDevtoolNamespace = library => {
// if options.output.library is a string
if (Array.isArray(library)) {
return library.join(".");
} else if (typeof library === "object") {
return getDevtoolNamespace(library.root);
}
return library || "";
};
class WebpackOptionsDefaulter extends OptionsDefaulter {
constructor() {
super();
this.set("entry", "./src");
this.set("devtool", "make", options =>
options.mode === "development" ? "eval" : false
);
this.set("cache", "make", options => options.mode === "development");
this.set("context", process.cwd());
this.set("target", "web");
this.set("module", "call", value => Object.assign({}, value));
this.set("module.unknownContextRequest", ".");
this.set("module.unknownContextRegExp", false);
this.set("module.unknownContextRecursive", true);
this.set("module.unknownContextCritical", true);
this.set("module.exprContextRequest", ".");
this.set("module.exprContextRegExp", false);
this.set("module.exprContextRecursive", true);
this.set("module.exprContextCritical", true);
this.set("module.wrappedContextRegExp", /.*/);
this.set("module.wrappedContextRecursive", true);
this.set("module.wrappedContextCritical", false);
this.set("module.strictExportPresence", false);
this.set("module.strictThisContextOnImports", false);
this.set("module.unsafeCache", "make", options => !!options.cache);
this.set("module.rules", []);
this.set("module.defaultRules", "make", options => [
{
type: "javascript/auto",
resolve: {}
},
{
test: /\.mjs$/i,
type: "javascript/esm",
resolve: {
mainFields:
options.target === "web" ||
options.target === "webworker" ||
options.target === "electron-renderer"
? ["browser", "main"]
: ["main"]
}
},
{
test: /\.json$/i,
type: "json"
},
{
test: /\.wasm$/i,
type: "webassembly/experimental"
}
]);
this.set("output", "call", (value, options) => {
if (typeof value === "string") {
return {
filename: value
};
} else if (typeof value !== "object") {
return {};
} else {
return Object.assign({}, value);
}
});
this.set("output.filename", "[name].js");
this.set("output.chunkFilename", "make", options => {
const filename = options.output.filename;
if (typeof filename !== "function") {
const hasName = filename.includes("[name]");
const hasId = filename.includes("[id]");
const hasChunkHash = filename.includes("[chunkhash]");
// Anything changing depending on chunk is fine
if (hasChunkHash || hasName || hasId) return filename;
// Elsewise prefix "[id]." in front of the basename to make it changing
return filename.replace(/(^|\/)([^/]*(?:\?|$))/, "$1[id].$2");
}
return "[id].js";
});
this.set("output.webassemblyModuleFilename", "[modulehash].module.wasm");
this.set("output.library", "");
this.set("output.hotUpdateFunction", "make", options => {
return Template.toIdentifier(
"webpackHotUpdate" + Template.toIdentifier(options.output.library)
);
});
this.set("output.jsonpFunction", "make", options => {
return Template.toIdentifier(
"webpackJsonp" + Template.toIdentifier(options.output.library)
);
});
this.set("output.chunkCallbackName", "make", options => {
return Template.toIdentifier(
"webpackChunk" + Template.toIdentifier(options.output.library)
);
});
this.set("output.globalObject", "make", options => {
switch (options.target) {
case "web":
case "electron-renderer":
case "node-webkit":
return "window";
case "webworker":
return "self";
case "node":
case "async-node":
case "electron-main":
return "global";
default:
return "self";
}
});
this.set("output.devtoolNamespace", "make", options => {
return getDevtoolNamespace(options.output.library);
});
this.set("output.libraryTarget", "var");
this.set("output.path", path.join(process.cwd(), "dist"));
this.set(
"output.pathinfo",
"make",
options => options.mode === "development"
);
this.set("output.sourceMapFilename", "[file].map[query]");
this.set("output.hotUpdateChunkFilename", "[id].[hash].hot-update.js");
this.set("output.hotUpdateMainFilename", "[hash].hot-update.json");
this.set("output.crossOriginLoading", false);
this.set("output.jsonpScriptType", false);
this.set("output.chunkLoadTimeout", 120000);
this.set("output.hashFunction", "md4");
this.set("output.hashDigest", "hex");
this.set("output.hashDigestLength", 20);
this.set("output.devtoolLineToLine", false);
this.set("output.strictModuleExceptionHandling", false);
this.set("node", "call", value => {
if (typeof value === "boolean") {
return value;
} else {
return Object.assign({}, value);
}
});
this.set("node.console", false);
this.set("node.process", true);
this.set("node.global", true);
this.set("node.Buffer", true);
this.set("node.setImmediate", true);
this.set("node.__filename", "mock");
this.set("node.__dirname", "mock");
this.set("performance", "call", (value, options) => {
if (value === false) return false;
if (
value === undefined &&
(!isProductionLikeMode(options) || !isWebLikeTarget(options))
)
return false;
return Object.assign({}, value);
});
this.set("performance.maxAssetSize", 250000);
this.set("performance.maxEntrypointSize", 250000);
this.set("performance.hints", "make", options =>
isProductionLikeMode(options) ? "warning" : false
);
this.set("optimization", "call", value => Object.assign({}, value));
// TODO webpack 5: Disable by default in a modes
this.set(
"optimization.removeAvailableModules",
"make",
options => options.mode !== "development"
);
this.set("optimization.removeEmptyChunks", true);
this.set("optimization.mergeDuplicateChunks", true);
this.set("optimization.flagIncludedChunks", "make", options =>
isProductionLikeMode(options)
);
// TODO webpack 5 add `moduleIds: "named"` default for development
// TODO webpack 5 add `moduleIds: "size"` default for production
// TODO webpack 5 remove optimization.occurrenceOrder
this.set("optimization.occurrenceOrder", "make", options =>
isProductionLikeMode(options)
);
this.set("optimization.sideEffects", "make", options =>
isProductionLikeMode(options)
);
this.set("optimization.providedExports", true);
this.set("optimization.usedExports", "make", options =>
isProductionLikeMode(options)
);
this.set("optimization.concatenateModules", "make", options =>
isProductionLikeMode(options)
);
this.set("optimization.splitChunks", {});
this.set("optimization.splitChunks.hidePathInfo", "make", options => {
return isProductionLikeMode(options);
});
this.set("optimization.splitChunks.chunks", "async");
this.set("optimization.splitChunks.minSize", "make", options => {
return isProductionLikeMode(options) ? 30000 : 10000;
});
this.set("optimization.splitChunks.minChunks", 1);
this.set("optimization.splitChunks.maxAsyncRequests", "make", options => {
return isProductionLikeMode(options) ? 5 : Infinity;
});
this.set("optimization.splitChunks.automaticNameDelimiter", "~");
this.set("optimization.splitChunks.automaticNameMaxLength", 109);
this.set("optimization.splitChunks.maxInitialRequests", "make", options => {
return isProductionLikeMode(options) ? 3 : Infinity;
});
this.set("optimization.splitChunks.name", true);
this.set("optimization.splitChunks.cacheGroups", {});
this.set("optimization.splitChunks.cacheGroups.default", {
automaticNamePrefix: "",
reuseExistingChunk: true,
minChunks: 2,
priority: -20
});
this.set("optimization.splitChunks.cacheGroups.vendors", {
automaticNamePrefix: "vendors",
test: /[\\/]node_modules[\\/]/,
priority: -10
});
this.set("optimization.runtimeChunk", "call", value => {
if (value === "single") {
return {
name: "runtime"
};
}
if (value === true || value === "multiple") {
return {
name: entrypoint => `runtime~${entrypoint.name}`
};
}
return value;
});
this.set("optimization.noEmitOnErrors", "make", options =>
isProductionLikeMode(options)
);
this.set("optimization.checkWasmTypes", "make", options =>
isProductionLikeMode(options)
);
this.set("optimization.mangleWasmImports", false);
// TODO webpack 5 remove optimization.namedModules
this.set(
"optimization.namedModules",
"make",
options => options.mode === "development"
);
this.set("optimization.hashedModuleIds", false);
// TODO webpack 5 add `chunkIds: "named"` default for development
// TODO webpack 5 add `chunkIds: "size"` default for production
// TODO webpack 5 remove optimization.namedChunks
this.set(
"optimization.namedChunks",
"make",
options => options.mode === "development"
);
this.set(
"optimization.portableRecords",
"make",
options =>
!!(
options.recordsInputPath ||
options.recordsOutputPath ||
options.recordsPath
)
);
this.set("optimization.minimize", "make", options =>
isProductionLikeMode(options)
);
this.set("optimization.minimizer", "make", options => [
{
apply: compiler => {
// Lazy load the Terser plugin
const TerserPlugin = require("terser-webpack-plugin");
const SourceMapDevToolPlugin = require("./SourceMapDevToolPlugin");
new TerserPlugin({
cache: true,
parallel: true,
sourceMap:
(options.devtool && /source-?map/.test(options.devtool)) ||
(options.plugins &&
options.plugins.some(p => p instanceof SourceMapDevToolPlugin))
}).apply(compiler);
}
}
]);
this.set("optimization.nodeEnv", "make", options => {
// TODO: In webpack 5, it should return `false` when mode is `none`
return options.mode || "production";
});
this.set("resolve", "call", value => Object.assign({}, value));
this.set("resolve.unsafeCache", true);
this.set("resolve.modules", ["node_modules"]);
this.set("resolve.extensions", [".wasm", ".mjs", ".js", ".json"]);
this.set("resolve.mainFiles", ["index"]);
this.set("resolve.aliasFields", "make", options => {
if (
options.target === "web" ||
options.target === "webworker" ||
options.target === "electron-renderer"
) {
return ["browser"];
} else {
return [];
}
});
this.set("resolve.mainFields", "make", options => {
if (
options.target === "web" ||
options.target === "webworker" ||
options.target === "electron-renderer"
) {
return ["browser", "module", "main"];
} else {
return ["module", "main"];
}
});
this.set("resolve.cacheWithContext", "make", options => {
return (
Array.isArray(options.resolve.plugins) &&
options.resolve.plugins.length > 0
);
});
this.set("resolveLoader", "call", value => Object.assign({}, value));
this.set("resolveLoader.unsafeCache", true);
this.set("resolveLoader.mainFields", ["loader", "main"]);
this.set("resolveLoader.extensions", [".js", ".json"]);
this.set("resolveLoader.mainFiles", ["index"]);
this.set("resolveLoader.cacheWithContext", "make", options => {
return (
Array.isArray(options.resolveLoader.plugins) &&
options.resolveLoader.plugins.length > 0
);
});
this.set("infrastructureLogging", "call", value =>
Object.assign({}, value)
);
this.set("infrastructureLogging.level", "info");
this.set("infrastructureLogging.debug", false);
}
}
module.exports = WebpackOptionsDefaulter;