Function editFiles

script/move-content.js:443–486

(files, updateParent, opts)

}

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

  // Second loop. This time our only job is to edit the `redirects_from`
  // frontmatter key.
  // See comment in the first loop above for why we're looping over the files
  // two times.
  for (const [oldPath, newPath, oldHref, newHref] of files) {
    const fileContent = fs.readFileSync(newPath, 'utf-8')
    const { content, data } = readFrontmatter(fileContent)
    if (!(REDIRECT_FROM_KEY in data)) {
      data[REDIRECT_FROM_KEY] = []
    }
    data[REDIRECT_FROM_KEY].push(oldHref)
    fs.writeFileSync(
      newPath,
      readFrontmatter.stringify(content, data, { lineWidth: 10000 }),
      'utf-8'
    )
    if (verbose) {
      console.log(`Added ${oldHref} to 'redirects_from' in ${newPath}`)
    }

    if (updateParent) {
      addToChildren(newPath, removeFromChildren(oldPath, opts), opts)
    }

    // Perhaps this was mentioned in a 'guide' in a learning track
    for (const filePath of findInLearningTracks(oldHref)) {
      changeLearningTracks(filePath, oldHref, newHref)
      if (verbose) {
        console.log(`Updated learning tracks in ${filePath}`)
      }
    }
  }

  if (useGit) {
    const cmd = `git commit -a -m "set ${REDIRECT_FROM_KEY} on ${files.length} files"`
    execSync(cmd)
    if (verbose) {
      console.log(`git commit command: ${chalk.grey(cmd)}`)
    }
  }
}

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