update all-products so it reads from the homepage frontmatter

lib/all-products.js

@@ -1,53 +1,28 @@
 const fs = require('fs')
 const path = require('path')
-const slash = require('slash')
-const assert = require('assert')
-const { difference } = require('lodash')
-const yaml = require('js-yaml')
-const contentDir = path.join(process.cwd(), 'content')
 const frontmatter = require('./read-frontmatter')
 const getApplicableVersions = require('./get-applicable-versions')
 const removeFPTFromPath = require('./remove-fpt-from-path')
 
-// the product order is determined by data/products.yml
-const productsFile = path.join(process.cwd(), 'data/products.yml')
-const productsYml = yaml.load(fs.readFileSync(productsFile, 'utf8'))
-const sortedProductIds = productsYml.productsInOrder
-
-const contentProductIds = fs.readdirSync(contentDir, { withFileTypes: true })
-  .map(entry => {
-    // `fs.readdir` provides file entries based on `fs.lstat`, which doesn't
-    // resolve symbolic links to their target file/directory. We need to take
-    // an extra step here to resolve the Early Access symlinked directory.
-    const { name } = entry
-    if (entry.isSymbolicLink()) {
-      entry = fs.statSync(path.join(contentDir, entry.name))
-      entry.name = name
-    }
-    return entry
-  })
-  .filter(entry => entry.isDirectory())
-  .map(entry => entry.name)
-
-// require the content/<subdir> list to match the list in data/products.yml,
-// with the exception of content/early-access, which lives in a separate private repo
-const publicContentProductIds = contentProductIds.filter(id => id !== 'early-access')
-assert(difference(sortedProductIds, publicContentProductIds).length === 0)
-assert(difference(publicContentProductIds, sortedProductIds).length === 0)
+// Both internal and external products are specified in content/index.md
+const homepage = path.posix.join(process.cwd(), 'content/index.md')
+const { data } = frontmatter(fs.readFileSync(homepage, 'utf8'))
+const productIds = data.children
+const externalProducts = data.externalProducts
 
 const internalProducts = {}
 
-// add optional early access content dir to sorted products list if present
-const earlyAccessId = contentProductIds.find(id => id === 'early-access')
-if (earlyAccessId) sortedProductIds.push(earlyAccessId)
-
-sortedProductIds.forEach(productId => {
+productIds.forEach(productId => {
   const relPath = productId
-  const dir = slash(path.join('content', relPath))
-  const toc = slash(path.join(dir, 'index.md'))
+  const dir = path.posix.join('content', relPath)
+
+  // Early Access may not exist in the current checkout
+  if (!fs.existsSync(dir)) return
+
+  const toc = path.posix.join(dir, 'index.md')
   const { data } = frontmatter(fs.readFileSync(toc, 'utf8'))
   const applicableVersions = getApplicableVersions(data.versions, toc)
-  const href = removeFPTFromPath(slash(path.join('/', applicableVersions[0], productId)))
+  const href = removeFPTFromPath(path.posix.join('/', applicableVersions[0], productId))
 
   internalProducts[productId] = {
     id: productId,
@@ -62,27 +37,9 @@ sortedProductIds.forEach(productId => {
   internalProducts[productId].versions = applicableVersions
 })
 
-const externalProducts = {
-  cli: {
-    id: 'cli',
-    name: 'GitHub CLI',
-    href: 'https://cli.github.com/manual',
-    external: true
-  },
-  atom: {
-    id: 'atom',
-    name: 'Atom',
-    href: 'https://atom.io/docs',
-    external: true
-  },
-  electron: {
-    id: 'electron',
-    name: 'Electron',
-    href: 'https://electronjs.org/docs',
-    external: true
-  }
-}
+const productMap = Object.assign({}, internalProducts, externalProducts)
 
-const allProducts = Object.assign({}, internalProducts, externalProducts)
-
-module.exports = allProducts
+module.exports = {
+  productIds,
+  productMap
+}