monorepo-update.js

const execa = require('execa');
const Listr = require('listr');

async function refreshPackage(task, packageName) {
  task.title = `Updating ${packageName}`;
  const { stdout }  = await execa('git', ['subtree', 'pull', '-P', `packages/${packageName}`, '-m', `Update ${packageName}`,  `https://github.com/AugurProject/${packageName}`, 'master']);
  const firstLine = (stdout || '').split('\n')[0].trim();
  task.title = `Done updating ${packageName} - ${firstLine}`;
}

let tasks;
if (process.argv.length == 2) {
  tasks = new Listr([
    {
      title: 'Augur Core',
      task: async (ctx, task) => await refreshPackage(task, 'augur-core')
    },
    {
      title: 'Augur UI',
      task: async (ctx, task) => await refreshPackage(task, 'augur-ui')
    }
  ]);

} else {
  tasks = new Listr([
    {
      title: `Updating ${process.argv[2]}`,
      task: async (ctx, task) => await refreshPackage(task, process.argv[2])
    }
  ]);
}

tasks.run().catch((err) => {
  console.log(err);
  process.exit(1);
});