Function main

script/reconcile-category-dirs-with-ids.js:37–138

()

main()

async function main() {
  const englishCategoryIndices = getEnglishCategoryIndices()

  for (const categoryIndex of englishCategoryIndices) {
    const contents = fs.readFileSync(categoryIndex, 'utf8')
    const { data, content } = frontmatter(contents)

    // Get the parent directory name
    const categoryDirPath = path.dirname(categoryIndex)
    const categoryDirName = path.basename(categoryDirPath)

    const title = await renderContent(data.title, {}, { textOnly: true })
    slugger.reset()
    const expectedSlug = slugger.slug(decode(title))

    // If the directory name already matches the expected slug, bail out now
    if (categoryDirName === expectedSlug) continue

    // Figure out the new path for the category
    const categoryDirParentDir = path.dirname(categoryDirPath)
    const newPath = path.join(categoryDirParentDir, expectedSlug)

    // Figure out redirect path
    const relativeOldPath = path.relative(contentDir, categoryDirPath)
    const redirectPath = '/' + slash(relativeOldPath)

    // Log it
    const relativeNewPath = path.relative(contentDir, newPath)
    console.log(`Renaming category directory:
Old: "${relativeOldPath}"
New: "${relativeNewPath}"
Redirect: "${redirectPath}"
`)

    // Add a new redirect to the frontmatter
    if (!data.redirect_from) {
      data.redirect_from = []
    }
    data.redirect_from.push(redirectPath)

    // Update the category index file on disk
    fs.writeFileSync(categoryIndex, frontmatter.stringify(content, data, { lineWidth: 10000 }))

    // Update all of the category's articles on disk as well to add a new redirect to their frontmatter
    for (const articleFileName of fs.readdirSync(categoryDirPath)) {
      const articlePath = path.join(categoryDirPath, articleFileName)

      // Figure out redirect path
      const articlePathMinusExtension = path.join(
        categoryDirPath,
        path.basename(articleFileName, '.md')
      )
      const redirectArticlePath = '/' + slash(path.relative(contentDir, articlePathMinusExtension))

      // Log it
      const relativeOldArticlePath = path.relative(contentDir, articlePath)
      const newArticlePath = path.join(categoryDirParentDir, expectedSlug, articleFileName)
      const relativeNewArticlePath = path.relative(contentDir, newArticlePath)