git-cc

#!/usr/bin/env node

// Checkout or create a branch

const { execSync, exec } = require('child_process');

try {
  const lines = execSync("git branch --all --format '%(refname:short) %(refname)'").toString().trim().split('\n')

  const localBranches = lines.flatMap(line => {
    const [short, ref] = line.split(' ');
    if (ref.startsWith('refs/remotes/')) {
      return []
    } else {
      return [short]
    }
  })

  const remoteBranches = lines.flatMap(line => {
    const [short, ref] = line.split(' ');
    if (ref.startsWith('refs/remotes/') && !ref.endsWith('/HEAD')) {
      const [, local] = short.split(/\/(.*)/)
      if (localBranches.includes(local)) {
        return []
      } else {
        return short
      }
    } else {
      return []
    }
  })

  const branches = localBranches.concat(remoteBranches)

  exec(`echo "${branches.join('\n')}" | fzf --print-query`, (err, stdout, stderr) => {
    if (stdout.length > 0) {
     let [query, selectedBranch] = stdout.toString().split('\n').map(x => x.trim())
     if (selectedBranch != null && selectedBranch !== '') {
        if (localBranches.includes(selectedBranch)) {
          execSync(`git checkout ${selectedBranch}`)
        } else if (remoteBranches.includes(selectedBranch)) {
          const [remote, local] = selectedBranch.split(/\/(.*)/)
          execSync(`git checkout -b ${local} ${remote}/${local}`)
        }
      } else {
        const prompt = `# Output branch name

- Output the appropriate branch name for the following changes.
- If the change content can be used as is for the branch name, simply convert it according to the general branch naming rules.
- Make branch names concise, descriptive, and distinctive.
  - If the branch name is too generic and may conflict with future work, add a timestamp (YYYYMMDDhhmm) to the end of the name.
- Only respond with the message and no affirmation

## Changes

${query.replace('ai:', '')}
`
        const branch = execSync(`claude --model sonnet -p "${prompt}"`).toString().trim()
        execSync(`git checkout -b "${branch.trim()}"`)
      }
    }
  })
} catch(e) {
  if ('status' in e && 'stdout' in e && 'stderr' in e) {
    console.error('status:', e.status)
    console.error('stdout:' + e.stdout.toString() + 'stderr:', e.stderr.toString())
  } else {
    console.error(e)
  }
  process.exit(1)
}