prevent-translation-commits.js

#!/usr/bin/env node

// [start-readme]
//
// This script is run as a git precommit hook (installed by husky after npm install).
// It detects changes to files the in the translations folder and prevents the commit
// if any changes exist.
//
// [end-readme]

require('dotenv').config()

// Ignore this hook in GitHub Actions workflows
if (process.env.CI) process.exit()

// Allow this hook to be overriden with an enviroment variable
if (process.env.ALLOW_TRANSLATION_COMMITS) process.exit()

const { execSync } = require('child_process')
const filenames = execSync('git diff --cached --name-only').toString().trim().split('\n')
const localizedFilenames = filenames.filter(filename => filename.startsWith('translations/'))

if (localizedFilenames.length) {
  console.error('\n✋ Uh oh! Detected changes in the /translations directory.')
  console.error('The content in this directory is managed by our Crowdin integration and should not be edited directly in the repo.')
  console.error('For more information on how the localization process works, see translations/README.md')
  console.error('\nPlease revert your changes to the following files:\n')
  console.table(localizedFilenames.join('\n'))
  console.error('\nTip #1: You can unstage these changes on the command line using `git restore --staged translations`\n')
  console.error('\nTip #2: You can bypass this hook by setting `ALLOW_TRANSLATION_COMMITS=true` in your .env file.`\n')
  process.exit(1)
}