main.js

const { app, Tray, Menu, nativeTheme: { shouldUseDarkColors }, BrowserWindow } = require('electron')
const { exec } = require("child_process");
const path = require('path')
const fs = require('fs');
const { homedir } = require('os')

const icon = shouldUseDarkColors ? 'tray-icon-white.png' : 'tray-icon-dark.png'
const homedirPath = homedir()
let tray = null
const configString = `
[
  {
      "label": "Script label",
      "path": "/path/to/script.sh"
  }
]
`

// initLog()
fixPath();
app.dock.hide()
app.on('ready', createApp)
app.setLoginItemSettings({
  openAtLogin: true
})

function createApp() {
  createConfigFile()
  const configJson = readConfigFile()
  const menuTemplate = getMenuTemplate(configJson)
  const contextMenu = Menu.buildFromTemplate(menuTemplate)
  tray = new Tray(path.join(__dirname, icon))
  tray.setContextMenu(contextMenu)
}

function createConfigFile() {
  const path = `${homedirPath}/bt-config.json`
  if (fs.existsSync(path)) {
  } else {
    fs.writeFileSync(path, configString, function (err) {
      if (err) throw err;
    });
  }
}

function readConfigFile() {
  const configFile = path.join(homedirPath, 'bt-config.json')
  let rawdata = fs.readFileSync(configFile);
  let configJson = JSON.parse(rawdata);
  return configJson
}

function getMenuTemplate(configJson) {
  const template = configJson.map(obj => (obj.type === 'separator' ? { type: 'separator' } : { label: obj.label, click: () => executeBash(obj.path) }))
  template.push(
    { type: 'separator' },
    { label: "Quit", click: () => app.quit() }
  )

  return template
}

function executeBash(scriptPath) {
  exec(scriptPath, execCallback);
}

function execCallback(error, stdout, stderr) {
  console.log(error, stdout, stderr)
  console.log("DONE")
}


function fixPath() {
  const shellPath = require('shell-path');
  if (process.platform !== 'darwin') {
    return;
  }

  process.env.PATH = shellPath.sync() || [
    './node_modules/.bin',
    '/.nodebrew/current/bin',
    '/usr/local/bin',
    process.env.PATH
  ].join(':');
};

function initLog() {
  const log = require('electron-log');
  Object.assign(console, log.functions);
  log.transports.file.file = __dirname + 'log.log';
  log.info('Started app');
};