Fix content not showing up in preview and link checker checking more than *.mdx files (#226)

* Broken link checker should only run on .mdx files

* Add a test to catch a broken link

* Edit a JSON file

* Move to always using head.sha when link checking

* Miss a place for the head.sha

* print the changed files

* Move back to using nick-fields/retry

* Fix misspelling and add another test

* Fix wrong var being pass in

* Fix misspelling of variable

* Found another misspelling :face_palm:

* get-changed-files output is space not comma sep

* Give action a clearer name

* Fix dev-portal cache

* Revert testing changes

* Put back space

Author: RubenSandwich

.github/workflows/build-pr-preview.yml

@@ -24,7 +24,8 @@ jobs:
     name: Get Changed Files
     runs-on: ubuntu-latest
     outputs:
-      changed_content_files: ${{ steps.changed-files.outputs.content_all_changed_files }}
+      changed_markdown_content_files: ${{ steps.changed-files.outputs.markdown_content_all_changed_files }}
+
       changed_content_files_count: ${{ steps.changed-files.outputs.content_all_changed_files_count }}
 
       not_content_bad_boy_naughty_files_count: ${{ steps.changed-files.outputs.not_content_bad_boy_naughty_all_changed_files_count }}
@@ -38,6 +39,8 @@ jobs:
           files_yaml: |
             content:
               - 'content/**'
+            markdown_content:
+              - 'content/**/*.mdx'
             not_content_bad_boy_naughty:
               - '!content/**'
           base_sha: ${{ github.event.pull_request.base.sha }}
@@ -93,6 +96,8 @@ jobs:
 
       - name: Checkout hashicorp/web-unified-docs
         uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
 
       - name: Add commit link to summary
         run: |
@@ -186,7 +191,7 @@ jobs:
         with:
           path: |
             ~/.npm
-            ${{ github.workspace }}/.next/cache
+            ${{ github.workspace }}/unified-docs-frontend-preview/.next/cache
           # Generate a new cache whenever packages or source files change.
           key: ${{ runner.os }}-nextjs-${{ hashFiles('**/package-lock.json') }}-${{ hashFiles('**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx', '**/*.mdx') }}
           # If source files changed but packages didn't, rebuild from a prior cache.
@@ -213,12 +218,17 @@ jobs:
           echo "UNIFIED_DOCS_API=${{ needs.deploy-unified-docs-api-preview.outputs.preview_url }}" >> .env
 
       - name: Build dev-portal
+        uses: nick-fields/retry@7152eba30c6575329ac0576536151aca5a72780e # v3.0.0
         env:
           # Used to read docs from private repos, once all docs are in UDR we can remove this
           GITHUB_TOKEN: ${{ secrets.CI_GITHUB_TOKEN }}
-        run: |
-          cd unified-docs-frontend-preview
-          vercel build --token=${{ secrets.VERCEL_TOKEN }}
+        with:
+          shell: bash
+          timeout_minutes: 10
+          max_attempts: 2
+          command: |
+            cd unified-docs-frontend-preview
+            vercel build --token=${{ secrets.VERCEL_TOKEN }}
 
       - name: Deploy Project Artifacts and Set GitHub Outputs
         id: deploy_dev_portal_preview
@@ -269,12 +279,19 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - name: Checking links in files
+        run: |
+          echo "Checking links in files:"
+          echo "${{ needs.get-changed-files.outputs.changed_markdown_content_files }}" | tr ' ' '\n'
 
       - name: Run lychee link checker
         id: lychee
         uses: lycheeverse/lychee-action@f613c4a64e50d792e0b31ec34bbcbba12263c6a6 # v2.3.0
         with:
-          args: ${{ needs.get-changed-files.outputs.changed_content_files }} -b ${{ needs.deploy-dev-portal-preview.outputs.preview_url }} --exclude-all-private --exclude '\.(svg|gif|jpg|png)' --accept 200,408,429 --timeout=60 --max-concurrency 24 --no-progress --verbose
+          args: ${{ needs.get-changed-files.outputs.changed_markdown_content_files }} -b ${{ needs.deploy-dev-portal-preview.outputs.preview_url }} --exclude-all-private --exclude '\.(svg|gif|jpg|png)' --accept 200,408,429 --timeout=60 --max-concurrency 24 --no-progress --verbose
           fail: false
         env:
           GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}