vue hello world项目
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.exec = exec;
exports.findPackageJSONDir = findPackageJSONDir;
exports.getPostcssImplementation = getPostcssImplementation;
exports.getPostcssOptions = getPostcssOptions;
exports.loadConfig = loadConfig;
exports.normalizeSourceMap = normalizeSourceMap;
exports.normalizeSourceMapAfterPostcss = normalizeSourceMapAfterPostcss;
var _path = _interopRequireDefault(require("path"));
var _module = _interopRequireDefault(require("module"));
var _full = require("klona/full");
var _cosmiconfig = require("cosmiconfig");
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
const parentModule = module;
const stat = (inputFileSystem, filePath) => new Promise((resolve, reject) => {
inputFileSystem.stat(filePath, (err, stats) => {
if (err) {
reject(err);
}
resolve(stats);
});
});
function exec(code, loaderContext) {
const {
resource,
context
} = loaderContext;
const module = new _module.default(resource, parentModule); // eslint-disable-next-line no-underscore-dangle
module.paths = _module.default._nodeModulePaths(context);
module.filename = resource; // eslint-disable-next-line no-underscore-dangle
module._compile(code, resource);
return module.exports;
}
async function loadConfig(loaderContext, config, postcssOptions) {
const searchPath = typeof config === "string" ? _path.default.resolve(config) : _path.default.dirname(loaderContext.resourcePath);
let stats;
try {
stats = await stat(loaderContext.fs, searchPath);
} catch (errorIgnore) {
throw new Error(`No PostCSS config found in: ${searchPath}`);
}
const explorer = (0, _cosmiconfig.cosmiconfig)("postcss");
let result;
try {
if (stats.isFile()) {
result = await explorer.load(searchPath);
} else {
result = await explorer.search(searchPath);
}
} catch (error) {
throw error;
}
if (!result) {
return {};
}
loaderContext.addBuildDependency(result.filepath);
loaderContext.addDependency(result.filepath);
if (result.isEmpty) {
return result;
}
if (typeof result.config === "function") {
const api = {
mode: loaderContext.mode,
file: loaderContext.resourcePath,
// For complex use
webpackLoaderContext: loaderContext,
// Partial compatibility with `postcss-cli`
env: loaderContext.mode,
options: postcssOptions || {}
};
result.config = result.config(api);
}
result = (0, _full.klona)(result);
return result;
}
function loadPlugin(plugin, options, file) {
try {
if (!options || Object.keys(options).length === 0) {
// eslint-disable-next-line global-require, import/no-dynamic-require
const loadedPlugin = require(plugin);
if (loadedPlugin.default) {
return loadedPlugin.default;
}
return loadedPlugin;
} // eslint-disable-next-line global-require, import/no-dynamic-require
const loadedPlugin = require(plugin);
if (loadedPlugin.default) {
return loadedPlugin.default(options);
}
return loadedPlugin(options);
} catch (error) {
throw new Error(`Loading PostCSS "${plugin}" plugin failed: ${error.message}\n\n(@${file})`);
}
}
function pluginFactory() {
const listOfPlugins = new Map();
return plugins => {
if (typeof plugins === "undefined") {
return listOfPlugins;
}
if (Array.isArray(plugins)) {
for (const plugin of plugins) {
if (Array.isArray(plugin)) {
const [name, options] = plugin;
listOfPlugins.set(name, options);
} else if (plugin && typeof plugin === "function") {
listOfPlugins.set(plugin);
} else if (plugin && Object.keys(plugin).length === 1 && (typeof plugin[Object.keys(plugin)[0]] === "object" || typeof plugin[Object.keys(plugin)[0]] === "boolean") && plugin[Object.keys(plugin)[0]] !== null) {
const [name] = Object.keys(plugin);
const options = plugin[name];
if (options === false) {
listOfPlugins.delete(name);
} else {
listOfPlugins.set(name, options);
}
} else if (plugin) {
listOfPlugins.set(plugin);
}
}
} else {
const objectPlugins = Object.entries(plugins);
for (const [name, options] of objectPlugins) {
if (options === false) {
listOfPlugins.delete(name);
} else {
listOfPlugins.set(name, options);
}
}
}
return listOfPlugins;
};
}
async function tryRequireThenImport(module) {
let exports;
try {
// eslint-disable-next-line import/no-dynamic-require, global-require
exports = require(module);
return exports;
} catch (requireError) {
let importESM;
try {
// eslint-disable-next-line no-new-func
importESM = new Function("id", "return import(id);");
} catch (e) {
importESM = null;
}
if (requireError.code === "ERR_REQUIRE_ESM" && importESM) {
exports = await importESM(module);
return exports.default;
}
throw requireError;
}
}
async function getPostcssOptions(loaderContext, loadedConfig = {}, postcssOptions = {}) {
const file = loaderContext.resourcePath;
let normalizedPostcssOptions = postcssOptions;
if (typeof normalizedPostcssOptions === "function") {
normalizedPostcssOptions = normalizedPostcssOptions(loaderContext);
}
let plugins = [];
try {
const factory = pluginFactory();
if (loadedConfig.config && loadedConfig.config.plugins) {
factory(loadedConfig.config.plugins);
}
factory(normalizedPostcssOptions.plugins);
plugins = [...factory()].map(item => {
const [plugin, options] = item;
if (typeof plugin === "string") {
return loadPlugin(plugin, options, file);
}
return plugin;
});
} catch (error) {
loaderContext.emitError(error);
}
const processOptionsFromConfig = loadedConfig.config || {};
if (processOptionsFromConfig.from) {
processOptionsFromConfig.from = _path.default.resolve(_path.default.dirname(loadedConfig.filepath), processOptionsFromConfig.from);
}
if (processOptionsFromConfig.to) {
processOptionsFromConfig.to = _path.default.resolve(_path.default.dirname(loadedConfig.filepath), processOptionsFromConfig.to);
} // No need them for processOptions
delete processOptionsFromConfig.plugins;
const processOptionsFromOptions = (0, _full.klona)(normalizedPostcssOptions);
if (processOptionsFromOptions.from) {
processOptionsFromOptions.from = _path.default.resolve(loaderContext.rootContext, processOptionsFromOptions.from);
}
if (processOptionsFromOptions.to) {
processOptionsFromOptions.to = _path.default.resolve(loaderContext.rootContext, processOptionsFromOptions.to);
} // No need them for processOptions
delete processOptionsFromOptions.config;
delete processOptionsFromOptions.plugins;
const processOptions = {
from: file,
to: file,
map: false,
...processOptionsFromConfig,
...processOptionsFromOptions
};
if (typeof processOptions.parser === "string") {
try {
processOptions.parser = await tryRequireThenImport(processOptions.parser);
} catch (error) {
loaderContext.emitError(new Error(`Loading PostCSS "${processOptions.parser}" parser failed: ${error.message}\n\n(@${file})`));
}
}
if (typeof processOptions.stringifier === "string") {
try {
processOptions.stringifier = await tryRequireThenImport(processOptions.stringifier);
} catch (error) {
loaderContext.emitError(new Error(`Loading PostCSS "${processOptions.stringifier}" stringifier failed: ${error.message}\n\n(@${file})`));
}
}
if (typeof processOptions.syntax === "string") {
try {
processOptions.syntax = await tryRequireThenImport(processOptions.syntax);
} catch (error) {
loaderContext.emitError(new Error(`Loading PostCSS "${processOptions.syntax}" syntax failed: ${error.message}\n\n(@${file})`));
}
}
if (processOptions.map === true) {
// https://github.com/postcss/postcss/blob/master/docs/source-maps.md
processOptions.map = {
inline: true
};
}
return {
plugins,
processOptions
};
}
const IS_NATIVE_WIN32_PATH = /^[a-z]:[/\\]|^\\\\/i;
const ABSOLUTE_SCHEME = /^[a-z0-9+\-.]+:/i;
function getURLType(source) {
if (source[0] === "/") {
if (source[1] === "/") {
return "scheme-relative";
}
return "path-absolute";
}
if (IS_NATIVE_WIN32_PATH.test(source)) {
return "path-absolute";
}
return ABSOLUTE_SCHEME.test(source) ? "absolute" : "path-relative";
}
function normalizeSourceMap(map, resourceContext) {
let newMap = map; // Some loader emit source map as string
// Strip any JSON XSSI avoidance prefix from the string (as documented in the source maps specification), and then parse the string as JSON.
if (typeof newMap === "string") {
newMap = JSON.parse(newMap);
}
delete newMap.file;
const {
sourceRoot
} = newMap;
delete newMap.sourceRoot;
if (newMap.sources) {
newMap.sources = newMap.sources.map(source => {
const sourceType = getURLType(source); // Do no touch `scheme-relative` and `absolute` URLs
if (sourceType === "path-relative" || sourceType === "path-absolute") {
const absoluteSource = sourceType === "path-relative" && sourceRoot ? _path.default.resolve(sourceRoot, _path.default.normalize(source)) : _path.default.normalize(source);
return _path.default.relative(resourceContext, absoluteSource);
}
return source;
});
}
return newMap;
}
function normalizeSourceMapAfterPostcss(map, resourceContext) {
const newMap = map; // result.map.file is an optional property that provides the output filename.
// Since we don't know the final filename in the webpack build chain yet, it makes no sense to have it.
// eslint-disable-next-line no-param-reassign
delete newMap.file; // eslint-disable-next-line no-param-reassign
newMap.sourceRoot = ""; // eslint-disable-next-line no-param-reassign
newMap.sources = newMap.sources.map(source => {
if (source.indexOf("<") === 0) {
return source;
}
const sourceType = getURLType(source); // Do no touch `scheme-relative`, `path-absolute` and `absolute` types
if (sourceType === "path-relative") {
return _path.default.resolve(resourceContext, source);
}
return source;
});
return newMap;
}
function findPackageJSONDir(cwd, statSync) {
let dir = cwd;
for (;;) {
try {
if (statSync(_path.default.join(dir, "package.json")).isFile()) {
break;
}
} catch (error) {// Nothing
}
const parent = _path.default.dirname(dir);
if (dir === parent) {
dir = null;
break;
}
dir = parent;
}
return dir;
}
function getPostcssImplementation(loaderContext, implementation) {
let resolvedImplementation = implementation;
if (!implementation || typeof implementation === "string") {
const postcssImplPkg = implementation || "postcss";
try {
// eslint-disable-next-line import/no-dynamic-require, global-require
resolvedImplementation = require(postcssImplPkg);
} catch (error) {
loaderContext.emitError(error); // eslint-disable-next-line consistent-return
return;
}
} // eslint-disable-next-line consistent-return
return resolvedImplementation;
}