Function getBreadcrumbs

middleware/contextualizers/breadcrumbs.js:20–47

(req, isEarlyAccess)

const earlyAccessExceptions = ['insights', 'enterprise-importer']

function getBreadcrumbs(req, isEarlyAccess) {
  let cutoff = 0
  // When in Early access docs consider the "root" be much higher.
  // E.g. /en/early-access/github/migrating/understanding/about
  // we only want it start at /migrating/understanding/about
  // Essentially, we're skipping "/early-access" and its first
  // top-level like "/github"
  if (isEarlyAccess) {
    const split = req.context.currentPath.split('/')
    // There are a few exceptions to this rule for the
    // /{version}/early-access/<product-name>/... URLs because they're a
    // bit different.
    // If there are more known exceptions, add them to the array above.
    if (earlyAccessExceptions.some((product) => split.includes(product))) {
      cutoff = 1
    } else {
      cutoff = 2
    }
  }

  const breadcrumbs = traverseTreeTitles(
    req.context.currentPath,
    req.context.currentProductTreeTitles
  )
  ;[...Array(cutoff)].forEach(() => breadcrumbs.shift())

  return breadcrumbs
}

// Return an array as if you'd traverse down a tree. Imagine a tree like
//