Function loadPageList

lib/page-data.js:245–269

(unversionedTree, languagesOnly = null)

// Derive a flat array of Page objects in all languages.
export async function loadPageList(unversionedTree, languagesOnly = null) {
  if (languagesOnly && !Array.isArray(languagesOnly)) {
    throw new Error("'languagesOnly' has to be an array")
  }
  const rawTree = unversionedTree || (await loadUnversionedTree(languagesOnly))
  const pageList = []

  await Promise.all(
    (languagesOnly || Object.keys(languages)).map(async (langCode) => {
      await addToCollection(rawTree[langCode], pageList)
    })
  )

  async function addToCollection(item, collection) {
    if (!item.page) return
    collection.push(item.page)

    if (!item.childPages) return
    await Promise.all(
      item.childPages.map(async (childPage) => await addToCollection(childPage, collection))
    )
  }

  return pageList
}

export const loadPages = loadPageList