Add Production Logs

Author: casesandberg

README.md

@@ -26,6 +26,13 @@ npm run setup
 
 If the window doesn't load after running `npm start`: try clicking on dev tools window and hitting `cmd-r` to refresh the window.
 
+### Logs
+Logs are written to the following locations:
+
+* **Linux:** `~/.config/Lightning/log.log`
+* **OSX:** `~/Library/Logs/Lightning/log.log`
+* **Windows:** `%USERPROFILE%\AppData\Roaming\Lightning\log.log`
+
 ### Building
 
 To build binaries for OSX:

packages/lightning-desktop/main.development.js

@@ -7,6 +7,7 @@ import _ from 'lodash'
 import observe from 'observe'
 import cp from 'child_process'
 import ps from 'ps-node'
+import fileLog from 'electron-log'
 import os from 'os'
 import lnd from './lnd'
 
@@ -35,6 +36,7 @@ const runProcesses = (processes, logs) => {
       .then(() => {
         console.log(`${ proc.name } Already Running`)
         logs.push(`${ proc.name } Already Running`)
+        fileLog.info(`${ proc.name } Already Running`)
       })
       .catch(() => {
         const plat = os.platform()
@@ -49,7 +51,10 @@ const runProcesses = (processes, logs) => {
           })
           runningProcesses.push(instance)
           instance.stdout.on('data', data => logs.push(`${ proc.name }: ${ data }`))
-          instance.stderr.on('data', data => logs.push(`${ proc.name } Error: ${ data }`))
+          instance.stderr.on('data', (data) => {
+            logs.push(`${ proc.name } Error: ${ data }`)
+            fileLog.error(`${ proc.name }: ${ data }`)
+          })
         } catch (error) {
           console.log(`Caught Error When Starting ${ proc.name }: ${ error }`)
           logs.push(`Caught Error When Starting ${ proc.name }: ${ error }`)
@@ -195,4 +200,5 @@ app.on('quit', () => {
 
 process.on('uncaughtException', (error) => {
   console.log('Caught Main Process Error:', error)
+  fileLog.error(`Main Process: ${ error }`)
 })

packages/lightning-desktop/package.json

@@ -27,6 +27,7 @@
     "concurrently": "^3.1.0",
     "css-loader": "^0.26.1",
     "electron-debug": "^1.1.0",
+    "electron-log": "^2.2.6",
     "electron-packager": "^8.4.0",
     "electron-prebuilt": "^1.4.6",
     "electron-window-state": "^4.0.1",