Use eslint-config-scratch

.editorconfig

@@ -0,0 +1,11 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+indent_size = 4
+trim_trailing_whitespace = true
+
+[*.{js,html}]
+indent_style = space

.eslintignore

@@ -0,0 +1,2 @@
+node_modules/*
+dist/*

.eslintrc.js

@@ -0,0 +1,7 @@
+module.exports = {
+    root: true,
+    env: {
+        node: true
+    },
+    extends: ['scratch', 'scratch/node']
+};

.gitignore

@@ -1,4 +1,5 @@
 .DS_Store
+.eslintcache
 dist/
 node_modules/
 thumbs.db

package.json

@@ -6,16 +6,22 @@
     "start": "electron-webpack dev",
     "compile": "electron-webpack",
     "dist": "npm run compile && electron-builder",
-    "dist:dir": "npm run dist -- --dir -c.compression=store -c.mac.identity=null"
+    "dist:dir": "npm run dist -- --dir -c.compression=store -c.mac.identity=null",
+    "lint": "eslint --cache --color --ext .jsx,.js ."
   },
   "dependencies": {
     "source-map-support": "^0.5.9"
   },
   "devDependencies": {
+    "babel-eslint": "^8.2.6",
     "electron": "2.0.7",
     "electron-builder": "^20.28.1",
     "electron-webpack": "^2.1.2",
-    "webpack": "^4.16.5"
+    "webpack": "^4.16.5",
+    "eslint": "^4.19.1",
+    "eslint-config-scratch": "^5.0.0",
+    "eslint-plugin-import": "^2.14.0",
+    "eslint-plugin-react": "^7.11.1"
   },
   "resolutions": {
     "upath": "^1.0.5"

src/.eslintrc.js

@@ -0,0 +1,7 @@
+module.exports = {
+    root: true,
+    env: {
+        'shared-node-browser': true
+    },
+    extends: ['scratch', 'scratch/es6']
+};

src/main/.eslintrc.js

@@ -0,0 +1,7 @@
+module.exports = {
+    root: true,
+    env: {
+        node: true
+    },
+    extends: ['scratch', 'scratch/es6', 'scratch/node']
+};

src/main/index.js

@@ -1,62 +1,59 @@
-'use strict'
+import {app, BrowserWindow} from 'electron';
+import * as path from 'path';
+import {format as formatUrl} from 'url';
 
-import { app, BrowserWindow } from 'electron'
-import * as path from 'path'
-import { format as formatUrl } from 'url'
-
-const isDevelopment = process.env.NODE_ENV !== 'production'
+const isDevelopment = process.env.NODE_ENV !== 'production';
 
 // global reference to mainWindow (necessary to prevent window from being garbage collected)
-let mainWindow
+let mainWindow;
 
-function createMainWindow() {
-  const window = new BrowserWindow()
+const createMainWindow = () => {
+    const window = new BrowserWindow();
 
-  if (isDevelopment) {
-    window.webContents.openDevTools()
-  }
+    if (isDevelopment) {
+        window.webContents.openDevTools();
+    }
 
-  if (isDevelopment) {
-    window.loadURL(`http://localhost:${process.env.ELECTRON_WEBPACK_WDS_PORT}`)
-  }
-  else {
-    window.loadURL(formatUrl({
-      pathname: path.join(__dirname, 'index.html'),
-      protocol: 'file',
-      slashes: true
-    }))
-  }
+    if (isDevelopment) {
+        window.loadURL(`http://localhost:${process.env.ELECTRON_WEBPACK_WDS_PORT}`);
+    } else {
+        window.loadURL(formatUrl({
+            pathname: path.join(__dirname, 'index.html'),
+            protocol: 'file',
+            slashes: true
+        }));
+    }
 
-  window.on('closed', () => {
-    mainWindow = null
-  })
+    window.on('closed', () => {
+        mainWindow = null;
+    });
 
-  window.webContents.on('devtools-opened', () => {
-    window.focus()
-    setImmediate(() => {
-      window.focus()
-    })
-  })
+    window.webContents.on('devtools-opened', () => {
+        window.focus();
+        setImmediate(() => {
+            window.focus();
+        });
+    });
 
-  return window
-}
+    return window;
+};
 
 // quit application when all windows are closed
 app.on('window-all-closed', () => {
-  // on macOS it is common for applications to stay open until the user explicitly quits
-  if (process.platform !== 'darwin') {
-    app.quit()
-  }
-})
+    // on macOS it is common for applications to stay open until the user explicitly quits
+    if (process.platform !== 'darwin') {
+        app.quit();
+    }
+});
 
 app.on('activate', () => {
-  // on macOS it is common to re-create a window even after all windows have been closed
-  if (mainWindow === null) {
-    mainWindow = createMainWindow()
-  }
-})
+    // on macOS it is common to re-create a window even after all windows have been closed
+    if (mainWindow === null) {
+        mainWindow = createMainWindow();
+    }
+});
 
 // create main BrowserWindow when electron is ready
 app.on('ready', () => {
-  mainWindow = createMainWindow()
-})
+    mainWindow = createMainWindow();
+});

src/renderer/.eslintrc.js

@@ -0,0 +1,7 @@
+module.exports = {
+    root: true,
+    env: {
+        browser: true
+    },
+    extends: ['scratch', 'scratch/react']
+};