Git Local Branch Clear When Remote Branch PR Merge and Deleted

ClearLocal.js

#!/usr/bin/env node

const { spawn } = require('child_process')

const REMOTE_START_STR = 'remotes/origin/'
const runCommand = async (command, options) => {
  return new Promise((resolve, reject) => {
    const prc = spawn(command, [...options], {
      cwd: process.cwd(),
    })

    let result = ''
    prc.stdout.on('data', data => {
      result += data.toString()
    })
    prc.stderr.on('data', reject)
    prc.on('close', code => {
      resolve(result)
    })
  })
}

const parseBranchInfo = rawInfo => {
  const lines = rawInfo.split('\n')
  const localBranch = []
  const remotesBranch = []
  lines.forEach(line => {
    const br = line.trim().split(' ')[0]
    if (!br || br === '*' || br === 'HEAD') return
    br.startsWith(REMOTE_START_STR) ? remotesBranch.push(br.replace(REMOTE_START_STR, '')) : localBranch.push(br)
  })

  return {
    localBranch,
    remotesBranch
  }
}

const clearLocalBranch = ({ localBranch, remotesBranch }) => {
  const localRemoveCandidate = localBranch.filter(branch => !remotesBranch.includes(branch))
  if (localRemoveCandidate && localRemoveCandidate.length > 0) {
    return runCommand('git', ['branch', '-D', ...localRemoveCandidate])
  }
}

runCommand('git', ['branch', '-av'])
  .then(parseBranchInfo)
  .then(clearLocalBranch)
  .then(() => console.log('Clear Success...'))
  .catch(() => console.error('Clear Failed...'))