Put webpack in charge of language file copying and loading

And HTTP in charge of caching.

app/cache.js

@@ -1,126 +0,0 @@
-
-export /*abstract */class Cache {
-  /**
-   * @param {string} key
-   * @return {boolean}
-   * @author svartoyg
-   */
-  /*protected */has(key) {
-    throw (new Error('not implemented'));
-  }
-  
-  /**
-   * @param {string} key
-   * @return {any}
-   * @author svartoyg
-   */
-  /*protected */fetch(key) {
-    throw (new Error('not implemented'));
-  }
-  
-  /**
-   * @param {string} key
-   * @param {any} value
-   * @author svartoyg
-   */
-  /*protected */store(key, value) {
-    throw (new Error('not implemented'));
-  }
-  
-  /**
-   * @param {string} key
-   * @param {()=>Promise<any>} retrieve
-   * @return {Promise<any>}
-   * @author svartoyg
-   */
-  /*public */async get(key, retrieve) {
-    if (this.has(key)) {
-      const value = this.fetch(key);
-      return Promise.resolve(value);
-    } else {
-      const value = await retrieve();
-      this.store(key, value);
-      return Promise.resolve(value);
-    }
-  }
-}
-
-
-/**
- * @author svartoyg
- */
-class CacheNone extends Cache {
-  /**
-   * @author svartoyg
-   */
-  /*public */constructor() {
-    super();
-  }
-  
-  /**
-   * @author svartoyg
-   */
-  /*protected */has(key) {
-    return false;
-  }
-  
-  /**
-   * @author svartoyg
-   */
-  /*protected */fetch(key) {
-    throw (new Error('not possible'));
-  }
-  
-  /**
-   * @author svartoyg
-   */
-  /*protected */store(key, value) {
-  }
-}
-
-
-/**
- * @author svartoyg
- */
-export class CacheLocalstorage extends Cache {
-  /**
-   * @param {string} [corner] for separating the cache instance from others
-   * @author svartoyg
-   */
-  /*public */constructor(corner = null) {
-    super();
-    this.corner = corner;
-  }
-  
-  /**
-   * @author svartoyg
-   */
-  /*private */augmentKey(key) {
-    return ((this.corner === null) ? key : (this.corner + '/' + key));
-  }
-  
-  /**
-   * @author svartoyg
-   */
-  /*protected */has(key) {
-    return (window.localStorage.getItem(this.augmentKey(key)) !== null);
-  }
-  
-  /**
-   * @author svartoyg
-   */
-  /*protected */fetch(key) {
-    const valueRaw = window.localStorage.getItem(this.augmentKey(key));
-    const value = JSON.parse(valueRaw);
-    return value;
-  }
-  
-  /**
-   * @author svartoyg
-   */
-  /*protected */store(key, value) {
-    const valueRaw = JSON.stringify(value);
-    window.localStorage.setItem(this.augmentKey(key), valueRaw);
-  }
-}
-

app/file.js

@@ -1,40 +0,0 @@
-
-/**
- * @param {string} path
- * @return Promise<string>
- * @todo use Util.fetch instead?
- * @author svartoyg
- */
-export async function read (path) {
-  return (
-    new Promise(
-      (resolve, reject) => {
-        let request = new XMLHttpRequest();
-        request.open('GET', '/' + path, true);
-        request.onreadystatechange = () => {
-          switch (request.readyState) {
-            case XMLHttpRequest.DONE: {
-              switch (request.status) {
-                case 0: {
-                  reject(new Error('XMLHttpRequest failed'));
-                  break;
-                }
-                default: {
-                  resolve(request.responseText);
-                  break;
-                }
-              }
-              break;
-            }
-            default: {
-              console.warn('unhandled readyState "' + request.readyState + '"');
-              break;
-            }
-          }
-        };
-        request.send(null);
-      }
-    )
-  );
-}
-

app/loc.js

@@ -1,17 +1,3 @@
-import {CacheLocalstorage} from './cache';
-import {read as fileRead} from './file';
-// import {Util} from 'util';
-
-
-/**
- * the relative path to the directory containing the JSON localization files
- * 
- * @var {string}
- * @author svartoyg
- */
-var _directory = 'loc';
-
-
 /**
  * the default language to use
  * 
@@ -31,13 +17,6 @@ var _languageFallback = null;
 
 
 /**
- * @var {Cache}
- * @author svartoyg
- */
-var _cache = null;
-
-
-/**
  * two level map with ISO-639-1 code as first key and translation id as second key
  * 
  * @var {Map<string,Map<string,string>>}
@@ -56,20 +35,7 @@ async function retrieveData (language) {
   if (regexp.exec(language) === null) {
     return Promise.reject(new Error('invalid language code "' + language + '"'));
   } else {
-    const path = (_directory + '/' + language + '.json');
-    let content;
-    try {
-      content = await fileRead(path);
-    } catch (exception) {
-      return Promise.reject(new Error('could not load localization data for language "' + language + '": ' + error.toString()));
-    }
-    let data;
-    try {
-      data = JSON.parse(content);
-    } catch (exception) {
-      return Promise.reject(new Error('invalid JSON localization data for language "' + language + '": ' + exception.toString()));
-    }
-    return Promise.resolve(data);
+    return (await import(`../loc/${language}.json`)).default
   }
 }
 
@@ -80,7 +46,6 @@ async function retrieveData (language) {
  * @author svartoyg
  */
 export async function initialize (languageDefault, languageFallback = 'en') {
-  _cache = new CacheLocalstorage('loc');
   _languageFallback = languageFallback;
   _languageDefault = languageDefault;
   for (const language of [_languageFallback, _languageDefault]) {
@@ -88,7 +53,7 @@ export async function initialize (languageDefault, languageFallback = 'en') {
     console.log('--', 'loading localization data for language "' + language + '" ...');
     let data;
     try {
-      data = await _cache.get(language, () => retrieveData(language));
+      data = await retrieveData(language);
     } catch (exception) {
       console.warn(exception.toString());
     }

tools/build

@@ -1,8 +0,0 @@
-#!/usr/bin/env sh
-
-npm run build
-
-## loc
-mkdir -p dist/loc
-cp -ruv loc/* dist/loc/
-

webpack.config.js

@@ -15,6 +15,7 @@ module.exports = {
   devtool: "cheap-source-map",
   output: {
     path: path.join(__dirname, 'dist'),
+    chunkFilename: '[chunkhash].js',
     filename: '[name].js'
   },
   module: {