fixup 3418ac9c: append to updateLog

background/update.js

@@ -225,12 +225,11 @@ global API_METHODS
     debounce(flushQueue, text && checkingAll ? 1000 : 0);
   }
 
-  function flushQueue(stored) {
-    if (!stored) {
-      chrome.storage.local.get('updateLog', flushQueue);
+  function flushQueue(lines) {
+    if (!lines) {
+      chromeLocal.getValue('updateLog', []).then(flushQueue);
       return;
     }
-    const lines = stored.lines || [];
     const time = Date.now() - logLastWriteTime > 11e3 ?
       logQueue[0].time + ' ' :
       '';
@@ -242,7 +241,7 @@ global API_METHODS
     lines.push(time + (logQueue[0] && logQueue[0].text || ''));
     lines.push(...logQueue.slice(1).map(item => item.text));
 
-    chrome.storage.local.set({updateLog: lines});
+    chromeLocal.setValue('updateLog', lines);
     logLastWriteTime = Date.now();
     logQueue = [];
   }

js/storage-util.js

@@ -21,7 +21,18 @@ var [chromeLocal, chromeSync] = (() => {
       set: data => new Promise(resolve => storage.set(data, () => resolve(data))),
       remove: data => new Promise(resolve => storage.remove(data, resolve)),
 
-      getValue: key => wrapper.get(key).then(data => data[key]),
+      /**
+       * @param {String} key
+       * @param {Any}    [defaultValue]
+       * @returns {Promise<any>}
+       */
+      getValue: (key, defaultValue) =>
+        wrapper.get(
+          defaultValue !== undefined ?
+            {[key]: defaultValue} :
+            key
+        ).then(data => data[key]),
+
       setValue: (key, value) => wrapper.set({[key]: value}),
 
       getLZValue: key => wrapper.getLZValues([key]).then(data => data[key]),