Function undoFiles

script/move-content.js:488–525

(files, updateParent, opts)

}

function undoFiles(files, updateParent, opts) {
  const { verbose, git: useGit } = opts

  // First undo any edits to the file
  for (const [oldPath, newPath, oldHref, newHref] of files) {
    const fileContent = fs.readFileSync(newPath, 'utf-8')
    const { content, data } = readFrontmatter(fileContent)

    data[REDIRECT_FROM_KEY] = (data[REDIRECT_FROM_KEY] || []).filter((entry) => entry !== oldHref)
    if (data[REDIRECT_FROM_KEY].length === 0) {
      delete data[REDIRECT_FROM_KEY]
    }

    fs.writeFileSync(
      newPath,
      readFrontmatter.stringify(content, data, { lineWidth: 10000 }),
      'utf-8'
    )
    if (updateParent) {
      addToChildren(newPath, removeFromChildren(oldPath, opts), opts)
    }

    // Perhaps this was mentioned in a 'guide' in a learning track
    for (const filePath of findInLearningTracks(newHref)) {
      changeLearningTracks(filePath, newHref, oldHref)
      if (verbose) {
        console.log(`Updated learning tracks in ${filePath}`)
      }
    }
  }
  if (useGit) {
    const cmd = `git commit -a -m "unset ${REDIRECT_FROM_KEY} on ${files.length} files"`
    execSync(cmd)
    if (verbose) {
      console.log(`git commit command: ${chalk.grey(cmd)}`)
    }
  }
}

function findInLearningTracks(href) {
  const allFiles = walk(path.join(DATA_ROOT, 'learning-tracks'), {