vue hello world项目
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"use strict";
const os = require("os");
const {
SourceMapConsumer
} = require("source-map");
const {
validate
} = require("schema-utils");
const serialize = require("serialize-javascript");
const {
Worker
} = require("jest-worker");
const {
throttleAll,
cssnanoMinify,
cssoMinify,
cleanCssMinify,
esbuildMinify,
parcelCssMinify
} = require("./utils");
const schema = require("./options.json");
const {
minify
} = require("./minify");
/** @typedef {import("schema-utils/declarations/validate").Schema} Schema */
/** @typedef {import("webpack").Compiler} Compiler */
/** @typedef {import("webpack").Compilation} Compilation */
/** @typedef {import("webpack").WebpackError} WebpackError */
/** @typedef {import("jest-worker").Worker} JestWorker */
/** @typedef {import("source-map").RawSourceMap} RawSourceMap */
/** @typedef {import("webpack").Asset} Asset */
/** @typedef {import("postcss").ProcessOptions} ProcessOptions */
/** @typedef {import("postcss").Syntax} Syntax */
/** @typedef {import("postcss").Parser} Parser */
/** @typedef {import("postcss").Stringifier} Stringifier */
/**
* @typedef {Object} CssNanoOptions
* @property {string} [configFile]
* @property {[string, object] | string | undefined} [preset]
*/
/** @typedef {Error & { plugin?: string, text?: string, source?: string } | string} Warning */
/**
* @typedef {Object} WarningObject
* @property {string} message
* @property {string} [plugin]
* @property {string} [text]
* @property {number} [line]
* @property {number} [column]
*/
/**
* @typedef {Object} ErrorObject
* @property {string} message
* @property {number} [line]
* @property {number} [column]
* @property {string} [stack]
*/
/**
* @typedef {Object} MinimizedResult
* @property {string} code
* @property {RawSourceMap} [map]
* @property {Array<Error | ErrorObject| string>} [errors]
* @property {Array<Warning | WarningObject | string>} [warnings]
*/
/**
* @typedef {{ [file: string]: string }} Input
*/
/**
* @typedef {{ [key: string]: any }} CustomOptions
*/
/**
* @template T
* @typedef {T extends infer U ? U : CustomOptions} InferDefaultType
*/
/**
* @template T
* @callback BasicMinimizerImplementation
* @param {Input} input
* @param {RawSourceMap | undefined} sourceMap
* @param {InferDefaultType<T>} minifyOptions
* @returns {Promise<MinimizedResult>}
*/
/**
* @template T
* @typedef {T extends any[] ? { [P in keyof T]: BasicMinimizerImplementation<T[P]>; } : BasicMinimizerImplementation<T>} MinimizerImplementation
*/
/**
* @template T
* @typedef {T extends any[] ? { [P in keyof T]?: InferDefaultType<T[P]> } : InferDefaultType<T>} MinimizerOptions
*/
/**
* @template T
* @typedef {Object} InternalOptions
* @property {string} name
* @property {string} input
* @property {RawSourceMap | undefined} inputSourceMap
* @property {{ implementation: MinimizerImplementation<T>, options: MinimizerOptions<T> }} minimizer
*/
/**
* @typedef InternalResult
* @property {Array<{ code: string, map: RawSourceMap | undefined }>} outputs
* @property {Array<Warning | WarningObject | string>} warnings
* @property {Array<Error | ErrorObject | string>} errors
*/
/** @typedef {undefined | boolean | number} Parallel */
/** @typedef {RegExp | string} Rule */
/** @typedef {Rule[] | Rule} Rules */
/** @typedef {(warning: Warning | WarningObject | string, file: string, source?: string) => boolean} WarningsFilter */
/**
* @typedef {Object} BasePluginOptions
* @property {Rules} [test]
* @property {Rules} [include]
* @property {Rules} [exclude]
* @property {WarningsFilter} [warningsFilter]
* @property {Parallel} [parallel]
*/
/**
* @template T
* @typedef {JestWorker & { transform: (options: string) => InternalResult, minify: (options: InternalOptions<T>) => InternalResult }} MinimizerWorker
*/
/**
* @typedef{ProcessOptions | { from?: string, to?: string, parser?: string | Syntax | Parser, stringifier?: string | Syntax | Stringifier, syntax?: string | Syntax } } ProcessOptionsExtender
*/
/**
* @typedef {CssNanoOptions & { processorOptions?: ProcessOptionsExtender }} CssNanoOptionsExtended
*/
/**
* @template T
* @typedef {T extends CssNanoOptionsExtended ? { minify?: MinimizerImplementation<T> | undefined, minimizerOptions?: MinimizerOptions<T> | undefined } : { minify: MinimizerImplementation<T>, minimizerOptions?: MinimizerOptions<T> | undefined }} DefinedDefaultMinimizerAndOptions
*/
/**
* @template T
* @typedef {BasePluginOptions & { minimizer: { implementation: MinimizerImplementation<T>, options: MinimizerOptions<T> } }} InternalPluginOptions
*/
const warningRegex = /\s.+:+([0-9]+):+([0-9]+)/;
/**
* @template [T=CssNanoOptionsExtended]
*/
class CssMinimizerPlugin {
/**
* @param {BasePluginOptions & DefinedDefaultMinimizerAndOptions<T>} [options]
*/
constructor(options) {
validate(
/** @type {Schema} */
schema, options || {}, {
name: "Css Minimizer Plugin",
baseDataPath: "options"
});
const {
minify =
/** @type {BasicMinimizerImplementation<T>} */
cssnanoMinify,
minimizerOptions =
/** @type {MinimizerOptions<T>} */
{},
test = /\.css(\?.*)?$/i,
warningsFilter = () => true,
parallel = true,
include,
exclude
} = options || {};
/**
* @private
* @type {InternalPluginOptions<T>}
*/
this.options = {
test,
warningsFilter,
parallel,
include,
exclude,
minimizer: {
implementation:
/** @type {MinimizerImplementation<T>} */
minify,
options: minimizerOptions
}
};
}
/**
* @private
* @param {any} input
* @returns {boolean}
*/
static isSourceMap(input) {
// All required options for `new SourceMapConsumer(...options)`
// https://github.com/mozilla/source-map#new-sourcemapconsumerrawsourcemap
return Boolean(input && input.version && input.sources && Array.isArray(input.sources) && typeof input.mappings === "string");
}
/**
* @private
* @param {Warning | WarningObject | string} warning
* @param {string} file
* @param {WarningsFilter} [warningsFilter]
* @param {SourceMapConsumer} [sourceMap]
* @param {Compilation["requestShortener"]} [requestShortener]
* @returns {Error & { hideStack?: boolean, file?: string } | undefined}
*/
static buildWarning(warning, file, warningsFilter, sourceMap, requestShortener) {
let warningMessage = typeof warning === "string" ? warning : `${warning.plugin ? `[${warning.plugin}] ` : ""}${warning.text || warning.message}`;
let locationMessage = "";
let source;
if (sourceMap) {
let line;
let column;
if (typeof warning === "string") {
const match = warningRegex.exec(warning);
if (match) {
line = +match[1];
column = +match[2];
}
} else {
({
line,
column
} =
/** @type {WarningObject} */
warning);
}
if (line && column) {
const original = sourceMap.originalPositionFor({
line,
column
});
if (original && original.source && original.source !== file && requestShortener) {
({
source
} = original);
warningMessage = `${warningMessage.replace(warningRegex, "")}`;
locationMessage = `${requestShortener.shorten(original.source)}:${original.line}:${original.column}`;
}
}
}
if (warningsFilter && !warningsFilter(warning, file, source)) {
return;
}
/**
* @type {Error & { hideStack?: boolean, file?: string }}
*/
const builtWarning = new Error(`${file} from Css Minimizer plugin\n${warningMessage}${locationMessage ? ` ${locationMessage}` : ""}`);
builtWarning.name = "Warning";
builtWarning.hideStack = true;
builtWarning.file = file; // eslint-disable-next-line consistent-return
return builtWarning;
}
/**
* @private
* @param {Error | ErrorObject | string} error
* @param {string} file
* @param {SourceMapConsumer} [sourceMap]
* @param {Compilation["requestShortener"]} [requestShortener]
* @returns {Error}
*/
static buildError(error, file, sourceMap, requestShortener) {
/**
* @type {Error & { file?: string }}
*/
let builtError;
if (typeof error === "string") {
builtError = new Error(`${file} from Css Minimizer plugin\n${error}`);
builtError.file = file;
return builtError;
}
if (
/** @type {ErrorObject} */
error.line &&
/** @type {ErrorObject} */
error.column) {
const {
line,
column
} =
/** @type {ErrorObject & { line: number, column: number }} */
error;
const original = sourceMap && sourceMap.originalPositionFor({
line,
column
});
if (original && original.source && requestShortener) {
builtError = new Error(`${file} from Css Minimizer plugin\n${error.message} [${requestShortener.shorten(original.source)}:${original.line},${original.column}][${file}:${line},${column}]${error.stack ? `\n${error.stack.split("\n").slice(1).join("\n")}` : ""}`);
builtError.file = file;
return builtError;
}
builtError = new Error(`${file} from Css Minimizer plugin\n${error.message} [${file}:${line},${column}]${error.stack ? `\n${error.stack.split("\n").slice(1).join("\n")}` : ""}`);
builtError.file = file;
return builtError;
}
if (error.stack) {
builtError = new Error(`${file} from Css Minimizer plugin\n${error.stack}`);
builtError.file = file;
return builtError;
}
builtError = new Error(`${file} from Css Minimizer plugin\n${error.message}`);
builtError.file = file;
return builtError;
}
/**
* @private
* @param {Parallel} parallel
* @returns {number}
*/
static getAvailableNumberOfCores(parallel) {
// In some cases cpus() returns undefined
// https://github.com/nodejs/node/issues/19022
const cpus = os.cpus() || {
length: 1
};
return parallel === true ? cpus.length - 1 : Math.min(Number(parallel) || 0, cpus.length - 1);
}
/**
* @private
* @param {Compiler} compiler
* @param {Compilation} compilation
* @param {Record<string, import("webpack").sources.Source>} assets
* @param {{availableNumberOfCores: number}} optimizeOptions
* @returns {Promise<void>}
*/
async optimize(compiler, compilation, assets, optimizeOptions) {
const cache = compilation.getCache("CssMinimizerWebpackPlugin");
let numberOfAssetsForMinify = 0;
const assetsForMinify = await Promise.all(Object.keys(typeof assets === "undefined" ? compilation.assets : assets).filter(name => {
const {
info
} =
/** @type {Asset} */
compilation.getAsset(name);
if ( // Skip double minimize assets from child compilation
info.minimized) {
return false;
}
if (!compiler.webpack.ModuleFilenameHelpers.matchObject.bind( // eslint-disable-next-line no-undefined
undefined, this.options)(name)) {
return false;
}
return true;
}).map(async name => {
const {
info,
source
} =
/** @type {Asset} */
compilation.getAsset(name);
const eTag = cache.getLazyHashedEtag(source);
const cacheItem = cache.getItemCache(name, eTag);
const output = await cacheItem.getPromise();
if (!output) {
numberOfAssetsForMinify += 1;
}
return {
name,
info,
inputSource: source,
output,
cacheItem
};
}));
if (assetsForMinify.length === 0) {
return;
}
/** @type {undefined | (() => MinimizerWorker<T>)} */
let getWorker;
/** @type {undefined | MinimizerWorker<T>} */
let initializedWorker;
/** @type {undefined | number} */
let numberOfWorkers;
if (optimizeOptions.availableNumberOfCores > 0) {
// Do not create unnecessary workers when the number of files is less than the available cores, it saves memory
numberOfWorkers = Math.min(numberOfAssetsForMinify, optimizeOptions.availableNumberOfCores);
getWorker = () => {
if (initializedWorker) {
return initializedWorker;
}
initializedWorker =
/** @type {MinimizerWorker<T>} */
new Worker(require.resolve("./minify"), {
numWorkers: numberOfWorkers,
enableWorkerThreads: true
}); // https://github.com/facebook/jest/issues/8872#issuecomment-524822081
const workerStdout = initializedWorker.getStdout();
if (workerStdout) {
workerStdout.on("data", chunk => process.stdout.write(chunk));
}
const workerStderr = initializedWorker.getStderr();
if (workerStderr) {
workerStderr.on("data", chunk => process.stderr.write(chunk));
}
return initializedWorker;
};
}
const {
SourceMapSource,
RawSource
} = compiler.webpack.sources;
const scheduledTasks = [];
for (const asset of assetsForMinify) {
scheduledTasks.push(async () => {
const {
name,
inputSource,
cacheItem
} = asset;
let {
output
} = asset;
if (!output) {
let input;
/** @type {RawSourceMap | undefined} */
let inputSourceMap;
const {
source: sourceFromInputSource,
map
} = inputSource.sourceAndMap();
input = sourceFromInputSource;
if (map) {
if (!CssMinimizerPlugin.isSourceMap(map)) {
compilation.warnings.push(
/** @type {WebpackError} */
new Error(`${name} contains invalid source map`));
} else {
inputSourceMap =
/** @type {RawSourceMap} */
map;
}
}
if (Buffer.isBuffer(input)) {
input = input.toString();
}
/**
* @type {InternalOptions<T>}
*/
const options = {
name,
input,
inputSourceMap,
minimizer: {
implementation: this.options.minimizer.implementation,
options: this.options.minimizer.options
}
};
let result;
try {
result = await (getWorker ? getWorker().transform(serialize(options)) : minify(options));
} catch (error) {
const hasSourceMap = inputSourceMap && CssMinimizerPlugin.isSourceMap(inputSourceMap);
compilation.errors.push(
/** @type {WebpackError} */
CssMinimizerPlugin.buildError(
/** @type {any} */
error, name, hasSourceMap ? new SourceMapConsumer(
/** @type {RawSourceMap} */
inputSourceMap) : // eslint-disable-next-line no-undefined
undefined, // eslint-disable-next-line no-undefined
hasSourceMap ? compilation.requestShortener : undefined));
return;
}
output = {
warnings: [],
errors: []
};
for (const item of result.outputs) {
if (item.map) {
let originalSource;
let innerSourceMap;
if (output.source) {
({
source: originalSource,
map: innerSourceMap
} = output.source.sourceAndMap());
} else {
originalSource = input;
innerSourceMap = inputSourceMap;
} // TODO need API for merging source maps in `webpack-source`
output.source = new SourceMapSource(item.code, name, item.map, originalSource, innerSourceMap, true);
} else {
output.source = new RawSource(item.code);
}
}
if (result.errors && result.errors.length > 0) {
const hasSourceMap = inputSourceMap && CssMinimizerPlugin.isSourceMap(inputSourceMap);
for (const error of result.errors) {
output.warnings.push(CssMinimizerPlugin.buildError(error, name, hasSourceMap ? new SourceMapConsumer(
/** @type {RawSourceMap} */
inputSourceMap) : // eslint-disable-next-line no-undefined
undefined, // eslint-disable-next-line no-undefined
hasSourceMap ? compilation.requestShortener : undefined));
}
}
if (result.warnings && result.warnings.length > 0) {
const hasSourceMap = inputSourceMap && CssMinimizerPlugin.isSourceMap(inputSourceMap);
for (const warning of result.warnings) {
const buildWarning = CssMinimizerPlugin.buildWarning(warning, name, this.options.warningsFilter, hasSourceMap ? new SourceMapConsumer(
/** @type {RawSourceMap} */
inputSourceMap) : // eslint-disable-next-line no-undefined
undefined, // eslint-disable-next-line no-undefined
hasSourceMap ? compilation.requestShortener : undefined);
if (buildWarning) {
output.warnings.push(buildWarning);
}
}
}
await cacheItem.storePromise({
source: output.source,
warnings: output.warnings,
errors: output.errors
});
}
if (output.warnings && output.warnings.length > 0) {
for (const warning of output.warnings) {
compilation.warnings.push(warning);
}
}
if (output.errors && output.errors.length > 0) {
for (const error of output.errors) {
compilation.errors.push(error);
}
}
const newInfo = {
minimized: true
};
const {
source
} = output;
compilation.updateAsset(name, source, newInfo);
});
}
const limit = getWorker && numberOfAssetsForMinify > 0 ?
/** @type {number} */
numberOfWorkers : scheduledTasks.length;
await throttleAll(limit, scheduledTasks);
if (initializedWorker) {
await initializedWorker.end();
}
}
/**
* @param {Compiler} compiler
* @returns {void}
*/
apply(compiler) {
const pluginName = this.constructor.name;
const availableNumberOfCores = CssMinimizerPlugin.getAvailableNumberOfCores(this.options.parallel);
compiler.hooks.compilation.tap(pluginName, compilation => {
compilation.hooks.processAssets.tapPromise({
name: pluginName,
stage: compiler.webpack.Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE_SIZE,
additionalAssets: true
}, assets => this.optimize(compiler, compilation, assets, {
availableNumberOfCores
}));
compilation.hooks.statsPrinter.tap(pluginName, stats => {
stats.hooks.print.for("asset.info.minimized").tap("css-minimizer-webpack-plugin", (minimized, {
green,
formatFlag
}) => // eslint-disable-next-line no-undefined
minimized ?
/** @type {Function} */
green(
/** @type {Function} */
formatFlag("minimized")) : "");
});
});
}
}
CssMinimizerPlugin.cssnanoMinify = cssnanoMinify;
CssMinimizerPlugin.cssoMinify = cssoMinify;
CssMinimizerPlugin.cleanCssMinify = cleanCssMinify;
CssMinimizerPlugin.esbuildMinify = esbuildMinify;
CssMinimizerPlugin.parcelCssMinify = parcelCssMinify;
module.exports = CssMinimizerPlugin;