feat(debug): improve logging and add file to debug

config/daemon/fetch-unix-params.js

@@ -4,7 +4,7 @@ import path from 'path';
 import cp from 'child_process';
 
 import getBinariesPath from './get-binaries-path';
-import log from './logger';
+import { log } from './logger';
 
 // eslint-disable-next-line
 export default (): Promise<*> => new Promise((resolve, reject) => {

config/daemon/fetch-windows-params.js

@@ -15,7 +15,7 @@ import Queue from 'p-queue';
 // eslint-disable-next-line
 import { app, mainWindow } from '../electron';
 import getBinariesPath from './get-binaries-path';
-import log from './logger';
+import { log } from './logger';
 
 const queue = new Queue({ concurrency: 2, autoStart: false });
 
@@ -49,10 +49,7 @@ const FILES: Array<{ name: string, hash: string }> = [
 ];
 
 // eslint-disable-next-line max-len
-const checkSha256 = (
-  pathToFile: string,
-  expectedHash: string,
-) => new Promise((resolve, reject) => {
+const checkSha256 = (pathToFile: string, expectedHash: string) => new Promise((resolve, reject) => {
   fs.readFile(pathToFile, (err, file) => {
     if (err) return reject(new Error(err));
 
@@ -63,10 +60,7 @@ const checkSha256 = (
 });
 
 // eslint-disable-next-line max-len
-const downloadFile = ({
-  file,
-  pathToSave,
-}): Promise<*> => new Promise((resolve, reject) => {
+const downloadFile = ({ file, pathToSave }): Promise<*> => new Promise((resolve, reject) => {
   if (!mainWindow.isDestroyed()) mainWindow.webContents.send('zcashd-params-download', `Downloading ${file.name}...`);
   log(`Downloading ${file.name}...`);
 

config/daemon/logger.js

@@ -1,4 +1,29 @@
 // @flow
+import fs from 'fs';
+import path from 'path';
+import { app } from '../electron'; // eslint-disable-line
 
-// eslint-disable-next-line
-export default (...message: Array<*>) => console.log('[Zcash Daemon]', ...message);
+const getLogsFileName = () => path.join(app.getPath('userData'), 'main-process-logs.txt');
+
+// eslint-disable-next-line no-console
+export const log = (...message: Array<*>) => {
+  console.log('[Zcash Daemon]', ...message); // eslint-disable-line
+  fs.appendFileSync(
+    getLogsFileName(),
+    message
+      .map((msg) => {
+        if (msg instanceof Error) {
+          return `${JSON.stringify(msg, Object.getOwnPropertyNames(msg))}\n`;
+        }
+
+        if (typeof msg === 'object') {
+          return `${JSON.stringify(msg)}\n`;
+        }
+
+        return `${msg}\n`;
+      })
+      .join(''),
+  );
+};
+
+export const cleanLogs = () => fs.writeFileSync(getLogsFileName(), '');

config/daemon/run-fetch-params.js

@@ -2,7 +2,7 @@
 
 import os from 'os';
 
-import log from './logger';
+import { log } from './logger';
 import fetchWindowsParams from './fetch-windows-params';
 import runUnixFetchParams from './fetch-unix-params';
 
@@ -10,7 +10,5 @@ import runUnixFetchParams from './fetch-unix-params';
 export default (): Promise<*> => {
   log('Fetching params');
 
-  return os.platform() === 'win32'
-    ? fetchWindowsParams()
-    : runUnixFetchParams();
+  return os.platform() === 'win32' ? fetchWindowsParams() : runUnixFetchParams();
 };

config/daemon/zcashd-child-process.js

@@ -20,7 +20,7 @@ import getOsFolder from './get-os-folder';
 import getDaemonName from './get-daemon-name';
 import fetchParams from './run-fetch-params';
 import { locateZcashConf } from './locate-zcash-conf';
-import log from './logger';
+import { log } from './logger';
 import store from '../electron-store';
 import { parseZcashConf, parseCmdArgs, generateArgsFromConf } from './parse-zcash-conf';
 import { isTestnet } from '../is-testnet';

config/electron.js

@@ -11,7 +11,7 @@ import { autoUpdater } from 'electron-updater';
 import isDev from 'electron-is-dev';
 import { registerDebugShortcut } from '../utils/debug-shortcut';
 import runDaemon from './daemon/zcashd-child-process';
-import zcashLog from './daemon/logger';
+import { log as zcashLog, cleanLogs } from './daemon/logger';
 import getZecPrice from '../services/zec-price';
 import store from './electron-store';
 import { handleDeeplink } from './handle-deeplink';
@@ -113,6 +113,9 @@ app.on('ready', async () => {
 
   console.log('[Process Argv]', process.argv); // eslint-disable-line
 
+  // Reset old logs on startup
+  cleanLogs();
+
   if (process.env.NODE_ENV === 'test') {
     zcashLog('Not running daemon, please run the mock API');
     return;