webpack/lib/MultiStats.js

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/
"use strict";

const Stats = require("./Stats");

const optionOrFallback = (optionValue, fallbackValue) =>
	optionValue !== undefined ? optionValue : fallbackValue;

class MultiStats {
	constructor(stats) {
		this.stats = stats;
		this.hash = stats.map(stat => stat.hash).join("");
	}

	hasErrors() {
		return this.stats
			.map(stat => stat.hasErrors())
			.reduce((a, b) => a || b, false);
	}

	hasWarnings() {
		return this.stats
			.map(stat => stat.hasWarnings())
			.reduce((a, b) => a || b, false);
	}

	toJson(options, forToString) {
		if (typeof options === "boolean" || typeof options === "string") {
			options = Stats.presetToOptions(options);
		} else if (!options) {
			options = {};
		}
		const jsons = this.stats.map((stat, idx) => {
			const childOptions = Stats.getChildOptions(options, idx);
			const obj = stat.toJson(childOptions, forToString);
			obj.name = stat.compilation && stat.compilation.name;
			return obj;
		});
		const showVersion =
			options.version === undefined
				? jsons.every(j => j.version)
				: options.version !== false;
		const showHash =
			options.hash === undefined
				? jsons.every(j => j.hash)
				: options.hash !== false;
		if (showVersion) {
			for (const j of jsons) {
				delete j.version;
			}
		}
		const obj = {
			errors: jsons.reduce((arr, j) => {
				return arr.concat(
					j.errors.map(msg => {
						return `(${j.name}) ${msg}`;
					})
				);
			}, []),
			warnings: jsons.reduce((arr, j) => {
				return arr.concat(
					j.warnings.map(msg => {
						return `(${j.name}) ${msg}`;
					})
				);
			}, [])
		};
		if (showVersion) obj.version = require("../package.json").version;
		if (showHash) obj.hash = this.hash;
		if (options.children !== false) obj.children = jsons;
		return obj;
	}

	toString(options) {
		if (typeof options === "boolean" || typeof options === "string") {
			options = Stats.presetToOptions(options);
		} else if (!options) {
			options = {};
		}

		const useColors = optionOrFallback(options.colors, false);

		const obj = this.toJson(options, true);

		return Stats.jsonToString(obj, useColors);
	}
}

module.exports = MultiStats;