Filter PR files based on their name and the presence of additions.

filter-pr-files.js

const originalFiles = Array.from(document.querySelectorAll('.js-file'))
const container = document.querySelector('#files')

const isFileValid = el => {
  // Exclude a certain file name pattern
  const EXCLUSION_REGEX = /\.s?css$|^\ios\/|^\java\/|yarn\.lock|styles\.js|\.svg$/
  const fileName = el.querySelector('.file-header').dataset.path
  if (fileName.match(EXCLUSION_REGEX)) return false

  // Exclude files with no addition
  if (!el.querySelector('.block-diff-added')) return false

  return true
}

const filteredFiles = originalFiles.filter(fileEl => isFileValid(fileEl))

container.innerHTML = ''
filteredFiles.forEach(f => container.append(f))

console.log(`Filtered from ${originalFiles.length} to ${document.querySelectorAll('.js-file').length} files`)