Change product landing page introLinks to a general map of link titles to links (#26360)

* Add cta button to frontmatter and context

* Add cta to Page

* Render cta button in product landing hero

* Handle external links

* Add simple unit test for cta link

* Address feedback

Co-authored-by: Peter Bengtsson <mail@peterbe.com>

* Actually push condition update

* Show it's an external link

* Refactor FullLink so we use Link once

Co-authored-by: Peter Bengtsson <mail@peterbe.com>

* Custom link can also be null

* Rename 'cta' to 'custom' and make it the last introLink

* Update tests with 'cta' to 'custom' change

* Filter once

* Revert "Filter once"

This reverts commit a3f9a8a06b505d77fed47ca96a66c187c86c3c91.

* Update introLinks to a map of titles and URLs

* No more custom introLink in LandingHero

* Simplify introLinks processing

* introLinks can also be null

Co-authored-by: Peter Bengtsson <mail@peterbe.com>

* more concise

Co-authored-by: Peter Bengtsson <mail@peterbe.com>

* No longer necessary with the a plain introLinks map

Co-authored-by: Peter Bengtsson <mail@peterbe.com>

* '.entries()` is simpler

Co-authored-by: Peter Bengtsson <mail@peterbe.com>

* 'link' could be false depending on what version you're on

* Update test for new introLinks

Co-authored-by: Peter Bengtsson <mail@peterbe.com>

components/context/ProductLandingContext.tsx

@@ -38,11 +38,7 @@ export type ProductLandingContextT = {
   intro: string
   beta_product: boolean
   product: Product
-  introLinks: {
-    quickstart?: string
-    reference?: string
-    overview?: string
-  } | null
+  introLinks: Record<string, string> | null
   product_video?: string
   featuredLinks: Record<string, Array<FeaturedLink>>
   productCodeExamples: Array<CodeExample>
@@ -128,13 +124,7 @@ export const getProductLandingContextFromRequest = (req: any): ProductLandingCon
       })
     ),
 
-    introLinks: page.introLinks
-      ? {
-          quickstart: page.introLinks.quickstart,
-          reference: page.introLinks.reference,
-          overview: page.introLinks.overview,
-        }
-      : null,
+    introLinks: page.introLinks || null,
 
     featuredLinks: getFeaturedLinksFromReq(req),
 

components/landing/LandingHero.tsx

@@ -1,8 +1,9 @@
 import { useEffect, useState } from 'react'
 import cx from 'classnames'
 import { useRouter } from 'next/router'
-import { useMainContext } from 'components/context/MainContext'
+import { LinkExternalIcon } from '@primer/octicons-react'
 
+import { useMainContext } from 'components/context/MainContext'
 import { Link } from 'components/Link'
 import { useProductLandingContext } from 'components/context/ProductLandingContext'
 import { useTranslation } from 'components/hooks/useTranslation'
@@ -46,7 +47,7 @@ export const LandingHero = () => {
                   href={link}
                   className={cx('btn btn-large f4 mt-3 mr-3 ', i === 0 && 'btn-primary')}
                 >
-                  {t(key)}
+                  {t(key) || key}
                 </FullLink>
               )
             })}
@@ -72,7 +73,8 @@ export const LandingHero = () => {
   )
 }
 
-// Fully Qualified Link - it includes the version and locale in the path
+// Fully Qualified Link - it includes the version and locale in the path if
+// the href is not an external link.
 type Props = {
   href: string
   children: React.ReactNode
@@ -81,13 +83,24 @@ type Props = {
 export const FullLink = ({ href, children, className }: Props) => {
   const router = useRouter()
   const { currentVersion } = useVersion()
+
+  const isExternal = href.startsWith('https')
+  let linkHref = href
+  if (!isExternal) {
     const locale = router.locale || 'en'
-  const fullyQualifiedHref = `/${locale}${
+    linkHref = `/${locale}${
       currentVersion !== 'free-pro-team@latest' ? `/${currentVersion}` : ''
     }${href}`
+  }
+
   return (
-    <Link href={fullyQualifiedHref} className={className}>
-      {children}
+    <Link href={linkHref} className={className}>
+      {children}{' '}
+      {isExternal && (
+        <span className="ml-1">
+          <LinkExternalIcon size="small" />
+        </span>
+      )}
     </Link>
   )
 }

lib/frontmatter.js

@@ -77,11 +77,6 @@ export const schema = {
     },
     introLinks: {
       type: 'object',
-      properties: {
-        quickstart: { type: 'string' },
-        reference: { type: 'string' },
-        overview: { type: 'string' },
-      },
     },
     authors: {
       type: 'array',

lib/page.js

@@ -90,12 +90,7 @@ class Page {
     this.rawLearningTracks = this.learningTracks
     this.rawIncludeGuides = this.includeGuides
     this.raw_product_video = this.product_video
-
-    if (this.introLinks) {
-      this.introLinks.rawQuickstart = this.introLinks.quickstart
-      this.introLinks.rawReference = this.introLinks.reference
-      this.introLinks.rawOverview = this.introLinks.overview
-    }
+    this.rawIntroLinks = this.introLinks
 
     // Is this the Homepage or a Product, Category, Topic, or Article?
     this.documentType = getDocumentType(this.relativePath)
@@ -209,18 +204,6 @@ class Page {
 
     this.product_video = await renderContent(this.raw_product_video, context, { textOnly: true })
 
-    if (this.introLinks) {
-      this.introLinks.quickstart = await renderContent(this.introLinks.rawQuickstart, context, {
-        textOnly: true,
-      })
-      this.introLinks.reference = await renderContent(this.introLinks.rawReference, context, {
-        textOnly: true,
-      })
-      this.introLinks.overview = await renderContent(this.introLinks.rawOverview, context, {
-        textOnly: true,
-      })
-    }
-
     context.relativePath = this.relativePath
     const html = await renderContentCacheByContext('markdown')(this.markdown, context)
 
@@ -260,6 +243,18 @@ class Page {
       this.learningTracks = learningTracks
     }
 
+    // introLinks may contain Liquid and need to have versioning processed.
+    if (this.rawIntroLinks) {
+      const introLinks = {}
+      for (const [rawKey, value] of Object.entries(this.rawIntroLinks)) {
+        introLinks[rawKey] = await renderContent(value, context, {
+          textOnly: true,
+        })
+      }
+
+      this.introLinks = introLinks
+    }
+
     if (this.rawIncludeGuides) {
       this.allTopics = []
       this.includeGuides = await getLinkData(this.rawIncludeGuides, context)

tests/fixtures/article-with-introLinks.md

@@ -0,0 +1,9 @@
+---
+title: Article with introLinks 
+versions:
+  ghec: '*'
+  ghes: '*'
+introLinks:
+  overview: 'https://github.com'
+  custom link!: 'https://github.com/features'
+---

tests/unit/page.js

@@ -609,6 +609,21 @@ describe('Page class', () => {
     })
   })
 
+  describe('introLinks', () => {
+    it('includes the links specified in the introLinks frontmatter', async () => {
+      const page = await Page.init({
+        relativePath: 'article-with-introLinks.md',
+        basePath: path.join(__dirname, '../fixtures'),
+        languageCode: 'en',
+      })
+
+      expect(page.introLinks).toStrictEqual({
+        overview: 'https://github.com',
+        'custom link!': 'https://github.com/features',
+      })
+    })
+  })
+
   describe('Page.parseFrontmatter()', () => {
     it('throws an error on bad input', () => {
       const markdown = null