4

custom/custom01/config/lang.js

+const path = require('path');
+const srcPath = path.join(__dirname,"..","src");
+const outputPath = "../resources/lang/";
+module.exports = {
+	lang:["zh","en"],
+	group:srcPath,
+    output:outputPath
+};
\ No newline at end of file

custom/custom01/core/I18NPackage.js

+const path = require('path');
+const fs = require('fs');
+
+const config = require('../config/lang');
+const srcPath = path.join(__dirname,"..","src");
+const langPath = path.join(srcPath,"lang");
+const componentPath = path.join(srcPath,"lang","component");
+let allFilePath = [];
+function getAllLang(...dirs){
+	let langGroup = {};
+	for(let dir of dirs){
+		if(fs.existsSync(dir)){
+			for(let lang of config.lang){
+				let lPath = path.join(dir,"/",`${lang}.json`);
+				if(fs.existsSync(lPath)){
+					let arr;
+					if(langGroup[lang]!=null){
+						arr = langGroup[lang];
+					}else{
+						arr = new Array();
+					}
+					arr.push(lPath);
+					langGroup[lang] = arr;
+					allFilePath.push(lPath);
+				}
+			}
+		}	
+	}
+	return langGroup;
+}
+let langGroup;
+const watch = require('watch');
+class I18NPackage{
+	constructor(options){
+		this.options = options;
+		this.watching = false;
+	}
+
+	apply(compiler){
+		langGroup = getAllLang(langPath,componentPath);
+		compiler.plugin("watch-run", (compilation, callback) => {
+			if(!this.watching){
+				this.watching = true;
+				langGroup = getAllLang(langPath,componentPath);
+				const onChange = () => {
+					langGroup = getAllLang(langPath,componentPath);
+					compiler.run((err) => {
+						if(err) {
+						  throw err;
+						}
+					});
+				};
+				watch.createMonitor(srcPath, (monitor) => {
+					monitor.files[path.join(srcPath,".json")];
+
+					monitor.on("created", onChange);
+					monitor.on("changed", onChange);
+					monitor.on("removed", onChange);
+					callback();
+				});
+			}
+			
+		});
+		compiler.plugin('emit', function(compilation, callback) {
+			let createFileName = [];
+			try{
+				for(let key of Object.keys(langGroup)){
+					let path = langGroup[key];
+					let obj = {};
+					for(let filePath of path){
+						obj = Object.assign(obj,JSON.parse(fs.readFileSync(filePath, 'utf8')));
+					}
+					let filelist = JSON.stringify(obj);
+					// Insert this list into the Webpack build as a new file asset:
+					let fileName = `../resources/lang/${key}.json`;
+					compilation.assets[fileName] = {
+						source: function() {
+							return filelist;
+						},
+						size: function() {
+							return filelist.length;
+						}
+					};
+					createFileName.push(fileName);
+				}
+			}catch(err){
+				console.log(err)
+			}
+			console.log("lang file merge success.")
+			for(let file of createFileName){
+				console.log(file)
+			}
+
+			callback();
+		});
+	}
+}
+module.exports = I18NPackage;
\ No newline at end of file