Small JS script to bump all Yarn dependencies to the latest version available. Supports Yarn workspaces.

bump-deps-major.js

const { exec } = require('child_process')
const path = require('path')
const glob = require('glob').sync

const bumpDeps = async (depsList, dev = false, workspace) => {
    await new Promise((resolve, reject) => {
      const _workspace = workspace ? `workspace ${workspace}` : '-W'
      const _devFlag = dev ? '-D' : ''

      const cmd = `yarn ${_workspace} add ${_devFlag} ${Object.keys(depsList).join(' ')}`
      console.log(`$$ ${cmd}`)

      const e = exec(cmd)
      if (!e.stdout) return reject(new Error("There's no stdout."))

      e.stdout.pipe(process.stdout)
      e.stdout.on('end', resolve)
    })
}

;(async () => {
  const _root = require('./package.json')

  await bumpDeps(_root.dependencies, false)
  await bumpDeps(_root.devDependencies, true)

  if (_root.workspaces) {
    _root.workspaces.forEach(async (workspace) => {
      for (const str of glob(workspace)) {
        const _pkg = require(path.join(__dirname, str, 'package.json'))

        await bumpDeps(_pkg.dependencies, false, _pkg.name)
        await bumpDeps(_pkg.devDependencies, true, _pkg.name)
      }
    })
  }
})()

package.json

{
  "name": "bump-deps-major",
  "version": "1.0.0",
  "license": "MIT",
  "author": "VottusCode <vottus@vott.us>",
  "main": "./bump-deps-major.js",
  "bin": "./bump-deps-major.js"
}