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#!/usr/bin/env node
/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
const { NON_COMPILATION_ARGS } = require("./utils/constants");
(function() {
// wrap in IIFE to be able to use return
const importLocal = require("import-local");
// Prefer the local installation of webpack-cli
if (importLocal(__filename)) {
return;
}
require("v8-compile-cache");
const ErrorHelpers = require("./utils/errorHelpers");
const NON_COMPILATION_CMD = process.argv.find(arg => {
if (arg === "serve") {
global.process.argv = global.process.argv.filter(a => a !== "serve");
process.argv = global.process.argv;
}
return NON_COMPILATION_ARGS.find(a => a === arg);
});
if (NON_COMPILATION_CMD) {
return require("./utils/prompt-command")(NON_COMPILATION_CMD, ...process.argv);
}
const yargs = require("yargs").usage(`webpack-cli ${require("../package.json").version}
Usage: webpack-cli [options]
webpack-cli [options] --entry <entry> --output <output>
webpack-cli [options] <entries...> --output <output>
webpack-cli <command> [options]
For more information, see https://webpack.js.org/api/cli/.`);
require("./config/config-yargs")(yargs);
// yargs will terminate the process early when the user uses help or version.
// This causes large help outputs to be cut short (https://github.com/nodejs/node/wiki/API-changes-between-v0.10-and-v4#process).
// To prevent this we use the yargs.parse API and exit the process normally
yargs.parse(process.argv.slice(2), (err, argv, output) => {
Error.stackTraceLimit = 30;
// arguments validation failed
if (err && output) {
console.error(output);
process.exitCode = 1;
return;
}
// help or version info
if (output) {
console.log(output);
return;
}
if (argv.verbose) {
argv["display"] = "verbose";
}
let options;
try {
options = require("./utils/convert-argv")(argv);
} catch (err) {
if (err.code === "MODULE_NOT_FOUND") {
const moduleName = err.message.split("'")[1];
let instructions = "";
let errorMessage = "";
if (moduleName === "webpack") {
errorMessage = `\n${moduleName} not installed`;
instructions = `Install webpack to start bundling: \u001b[32m\n $ npm install --save-dev ${moduleName}\n`;
if (process.env.npm_execpath !== undefined && process.env.npm_execpath.includes("yarn")) {
instructions = `Install webpack to start bundling: \u001b[32m\n $ yarn add ${moduleName} --dev\n`;
}
Error.stackTraceLimit = 1;
console.error(`${errorMessage}\n\n${instructions}`);
process.exitCode = 1;
return;
}
}
if (err.name !== "ValidationError") {
throw err;
}
const stack = ErrorHelpers.cleanUpWebpackOptions(err.stack, err.message);
const message = err.message + "\n" + stack;
if (argv.color) {
console.error(`\u001b[1m\u001b[31m${message}\u001b[39m\u001b[22m`);
} else {
console.error(message);
}
process.exitCode = 1;
return;
}
/**
* When --silent flag is present, an object with a no-op write method is
* used in place of process.stout
*/
const stdout = argv.silent ? { write: () => {} } : process.stdout;
function ifArg(name, fn, init) {
if (Array.isArray(argv[name])) {
if (init) init();
argv[name].forEach(fn);
} else if (typeof argv[name] !== "undefined") {
if (init) init();
fn(argv[name], -1);
}
}
function processOptions(options) {
// process Promise
if (typeof options.then === "function") {
options.then(processOptions).catch(function(err) {
console.error(err.stack || err);
// eslint-disable-next-line no-process-exit
process.exit(1);
});
return;
}
const firstOptions = [].concat(options)[0];
const statsPresetToOptions = require("webpack").Stats.presetToOptions;
let outputOptions = options.stats;
if (typeof outputOptions === "boolean" || typeof outputOptions === "string") {
outputOptions = statsPresetToOptions(outputOptions);
} else if (!outputOptions) {
outputOptions = {};
}
ifArg("display", function(preset) {
outputOptions = statsPresetToOptions(preset);
});
outputOptions = Object.create(outputOptions);
if (Array.isArray(options) && !outputOptions.children) {
outputOptions.children = options.map(o => o.stats);
}
if (typeof outputOptions.context === "undefined") outputOptions.context = firstOptions.context;
ifArg("env", function(value) {
if (outputOptions.env) {
outputOptions._env = value;
}
});
ifArg("json", function(bool) {
if (bool) {
outputOptions.json = bool;
outputOptions.modules = bool;
}
});
if (typeof outputOptions.colors === "undefined") outputOptions.colors = require("supports-color").stdout;
ifArg("sort-modules-by", function(value) {
outputOptions.modulesSort = value;
});
ifArg("sort-chunks-by", function(value) {
outputOptions.chunksSort = value;
});
ifArg("sort-assets-by", function(value) {
outputOptions.assetsSort = value;
});
ifArg("display-exclude", function(value) {
outputOptions.exclude = value;
});
if (!outputOptions.json) {
if (typeof outputOptions.cached === "undefined") outputOptions.cached = false;
if (typeof outputOptions.cachedAssets === "undefined") outputOptions.cachedAssets = false;
ifArg("display-chunks", function(bool) {
if (bool) {
outputOptions.modules = false;
outputOptions.chunks = true;
outputOptions.chunkModules = true;
}
});
ifArg("display-entrypoints", function(bool) {
outputOptions.entrypoints = bool;
});
ifArg("display-reasons", function(bool) {
if (bool) outputOptions.reasons = true;
});
ifArg("display-depth", function(bool) {
if (bool) outputOptions.depth = true;
});
ifArg("display-used-exports", function(bool) {
if (bool) outputOptions.usedExports = true;
});
ifArg("display-provided-exports", function(bool) {
if (bool) outputOptions.providedExports = true;
});
ifArg("display-optimization-bailout", function(bool) {
if (bool) outputOptions.optimizationBailout = bool;
});
ifArg("display-error-details", function(bool) {
if (bool) outputOptions.errorDetails = true;
});
ifArg("display-origins", function(bool) {
if (bool) outputOptions.chunkOrigins = true;
});
ifArg("display-max-modules", function(value) {
outputOptions.maxModules = +value;
});
ifArg("display-cached", function(bool) {
if (bool) outputOptions.cached = true;
});
ifArg("display-cached-assets", function(bool) {
if (bool) outputOptions.cachedAssets = true;
});
if (!outputOptions.exclude) outputOptions.exclude = ["node_modules", "bower_components", "components"];
if (argv["display-modules"]) {
outputOptions.maxModules = Infinity;
outputOptions.exclude = undefined;
outputOptions.modules = true;
}
}
ifArg("hide-modules", function(bool) {
if (bool) {
outputOptions.modules = false;
outputOptions.chunkModules = false;
}
});
ifArg("info-verbosity", function(value) {
outputOptions.infoVerbosity = value;
});
ifArg("build-delimiter", function(value) {
outputOptions.buildDelimiter = value;
});
const webpack = require("webpack");
let lastHash = null;
let compiler;
try {
compiler = webpack(options);
} catch (err) {
if (err.name === "WebpackOptionsValidationError") {
if (argv.color) console.error(`\u001b[1m\u001b[31m${err.message}\u001b[39m\u001b[22m`);
else console.error(err.message);
// eslint-disable-next-line no-process-exit
process.exit(1);
}
throw err;
}
if (argv.progress) {
const ProgressPlugin = require("webpack").ProgressPlugin;
new ProgressPlugin({
profile: argv.profile
}).apply(compiler);
}
if (outputOptions.infoVerbosity === "verbose") {
if (argv.w) {
compiler.hooks.watchRun.tap("WebpackInfo", compilation => {
const compilationName = compilation.name ? compilation.name : "";
console.error("\nCompilation " + compilationName + " starting…\n");
});
} else {
compiler.hooks.beforeRun.tap("WebpackInfo", compilation => {
const compilationName = compilation.name ? compilation.name : "";
console.error("\nCompilation " + compilationName + " starting…\n");
});
}
compiler.hooks.done.tap("WebpackInfo", compilation => {
const compilationName = compilation.name ? compilation.name : "";
console.error("\nCompilation " + compilationName + " finished\n");
});
}
function compilerCallback(err, stats) {
if (!options.watch || err) {
// Do not keep cache anymore
compiler.purgeInputFileSystem();
}
if (err) {
lastHash = null;
console.error(err.stack || err);
if (err.details) console.error(err.details);
process.exitCode = 1;
return;
}
if (outputOptions.json) {
stdout.write(JSON.stringify(stats.toJson(outputOptions), null, 2) + "\n");
} else if (stats.hash !== lastHash) {
lastHash = stats.hash;
if (stats.compilation && stats.compilation.errors.length !== 0) {
const errors = stats.compilation.errors;
if (errors[0].name === "EntryModuleNotFoundError") {
console.error("\n\u001b[1m\u001b[31mInsufficient number of arguments or no entry found.");
console.error(
"\u001b[1m\u001b[31mAlternatively, run 'webpack(-cli) --help' for usage info.\u001b[39m\u001b[22m\n"
);
}
}
const statsString = stats.toString(outputOptions);
const delimiter = outputOptions.buildDelimiter ? `${outputOptions.buildDelimiter}\n` : "";
if (statsString) stdout.write(`${statsString}\n${delimiter}`);
}
if (!options.watch && stats.hasErrors()) {
process.exitCode = 2;
}
}
if (firstOptions.watch || options.watch) {
const watchOptions =
firstOptions.watchOptions || options.watchOptions || firstOptions.watch || options.watch || {};
if (watchOptions.stdin) {
process.stdin.on("end", function(_) {
process.exit(); // eslint-disable-line
});
process.stdin.resume();
}
compiler.watch(watchOptions, compilerCallback);
if (outputOptions.infoVerbosity !== "none") console.error("\nwebpack is watching the files…\n");
} else {
compiler.run((err, stats) => {
if (compiler.close) {
compiler.close(err2 => {
compilerCallback(err || err2, stats);
});
} else {
compilerCallback(err, stats);
}
});
}
}
processOptions(options);
});
})();