save election logs to file

client/package-lock.json

@@ -2580,6 +2580,11 @@
         }
       }
     },
+    "electron-log": {
+      "version": "4.4.6",
+      "resolved": "https://registry.npmmirror.com/electron-log/-/electron-log-4.4.6.tgz",
+      "integrity": "sha512-nirYgRdY+F+vclr8ijdwy2vW03IzFpDHTaKNWu76dEN21Y76+smcES5knS7cgHUUB0qNLOi8vZO36taakjbSXA=="
+    },
     "electron-notarize": {
       "version": "1.1.1",
       "resolved": "https://registry.npmmirror.com/electron-notarize/-/electron-notarize-1.1.1.tgz",
@@ -2636,7 +2641,7 @@
       "dependencies": {
         "debug": {
           "version": "2.6.9",
-          "resolved": "https://registry.npmmirror.com/debug/-/debug-2.6.9.tgz",
+          "resolved": "https://registry.npmmirror.com/debug/download/debug-2.6.9.tgz",
           "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
           "dev": true,
           "requires": {
@@ -3565,7 +3570,7 @@
       "dependencies": {
         "debug": {
           "version": "3.2.7",
-          "resolved": "https://registry.npmmirror.com/debug/-/debug-3.2.7.tgz",
+          "resolved": "https://registry.npmmirror.com/debug/download/debug-3.2.7.tgz",
           "integrity": "sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==",
           "dev": true,
           "requires": {
@@ -3660,7 +3665,7 @@
       "dependencies": {
         "debug": {
           "version": "2.6.9",
-          "resolved": "https://registry.npmmirror.com/debug/-/debug-2.6.9.tgz",
+          "resolved": "https://registry.npmmirror.com/debug/download/debug-2.6.9.tgz",
           "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
           "dev": true,
           "requires": {

client/package.json

@@ -39,6 +39,7 @@
     "style-loader": "^3.3.1"
   },
   "dependencies": {
+    "electron-log": "^4.4.6",
     "electron-squirrel-startup": "^1.0.0"
   }
 }

client/src/main.js

 import {app, BrowserWindow} from 'electron';
-import {getUIServerUrl, startZtfServer, killZtfServer} from './services';
+import {getUIServerUrl, startZtfServer, killZtfServer, logInfo, logErr} from './services';
 
 // Handle creating/removing shortcuts on Windows when installing/uninstalling.
 if (require('electron-squirrel-startup')) { // eslint-disable-line global-require
@@ -24,7 +24,6 @@ const createWindow = (url) => {
   mainWindow.webContents.openDevTools({mode: 'bottom'});
 };
 
-
 let _starting = false;
 
 async function startApp() {
@@ -35,9 +34,9 @@ async function startApp() {
 
   try {
     const ztfServerUrl = await startZtfServer();
-    console.log(`>> ZTF Server started successfully: ${ztfServerUrl}`);
+    logInfo(`>> ZTF Server started successfully: ${ztfServerUrl}`);
   } catch (error) {
-    console.error('>> Start ztf server failed: ' + error);
+    logErr('>> Start ztf server failed: ' + error);
     process.exit(1);
     return;
   }

client/src/services.js

@@ -211,3 +211,13 @@ export function getUIServerUrl() {
         _uiServerApp = cmd;
     });
 }
+
+
+const logger = require('electron-log');
+logger.transports.file.resolvePath = () => require("path").join(require("os").homedir(), 'ztf', 'log', 'electron.log');
+export function logInfo(str) {
+    logger.info(str);
+}
+export function logErr(str) {
+    logger.error(str);
+}
\ No newline at end of file