@mora/tinypng/lib/tinypng-webpack-plugin.js

基于 tinypng 封装的一个支持 `nodejs`、`命令行`和`webpack`的图片压缩工具

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var webpack_sources_1 = require("webpack-sources");
var tinypng_1 = require("./tinypng");
var helper_1 = require("./helper");
var TinypngWebpackPlugin = (function () {
    function TinypngWebpackPlugin(options) {
        this.options = options;
        options = helper_1.getConfig(options);
        if (!options.tokens || !Array.isArray(options.tokens) || options.tokens.length === 0)
            throw new Error('No tokens option');
        this.tp = new tinypng_1.default(options);
        this.filter = options.filter || function (m) {
            return m.rawRequest && /\.(png|jpg|jpeg|svg)$/i.test(m.resource);
        };
    }
    TinypngWebpackPlugin.prototype.apply = function (compiler) {
        var self = this;
        compiler.plugin('compilation', function (compilation) {
            compilation.plugin('optimize-assets', function (assets, callback) {
                var optimizeFiles = [];
                this.modules.forEach(function (m) {
                    var moduleAssets = Object.keys(m.assets);
                    if (moduleAssets.length === 1 && self.filter(m)) {
                        optimizeFiles.push({
                            rawRequest: m.rawRequest,
                            assetKey: moduleAssets[0],
                            asset: m.assets[moduleAssets[0]]
                        });
                    }
                });
                helper_1.runProgressTasks(optimizeFiles.map(function (file) { return function (done) {
                    self.tp.tiny(file.asset.source())
                        .then(function (buffer) {
                        compilation.assets[file.assetKey] = new webpack_sources_1.RawSource(buffer);
                        done(file.rawRequest);
                    })
                        .catch(function (e) {
                        compilation.errors.push(e instanceof Error ? e : new Error(JSON.stringify(e)));
                        done(file.rawRequest);
                    });
                    return file.rawRequest;
                }; }), callback, {
                    indent: '',
                    quiet: self.options.quiet
                });
            });
        });
    };
    return TinypngWebpackPlugin;
}());
exports.default = TinypngWebpackPlugin;