Update Broken-links-checker-final.yml

Author: Vamshi-Microsoft

.github/workflows/Broken-links-checker-final.yml

@@ -1,4 +1,4 @@
-name: Broken Link Checker
+name: Check Links In Pull Requests
 
 on:
   pull_request:
@@ -8,44 +8,71 @@ on:
 
 permissions:
   contents: read
+  
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 jobs:
-  markdown-link-check:
-    name: Check Markdown Broken Links
+  check-links:
     runs-on: ubuntu-latest
 
     steps:
-      - name: Checkout Repo
+      - name: Checkout PR branch
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
-      - name: Get Added/Modified Markdown Files (PR only)
+      - name: Set up Git
+        run: git fetch origin ${{ github.base_ref }}
+
+      - name: Get added/modified Markdown files
         id: changed-files
-        if: github.event_name == 'pull_request'
         run: |
-          git fetch origin ${{ github.base_ref }}
           files=$(git diff --name-only origin/${{ github.base_ref }}...HEAD | grep '\.md$' || true)
           echo "md_files<<EOF" >> $GITHUB_OUTPUT
           echo "$files" >> $GITHUB_OUTPUT
           echo "EOF" >> $GITHUB_OUTPUT
-      - name: Check Broken Links in Added/Modified Files (PR)
-        if: github.event_name == 'pull_request' && steps.changed-files.outputs.md_files != ''
+
+      - name: Dump base branch links into ignore file
+        if: steps.changed-files.outputs.md_files != ''
+        run: |
+          git checkout origin/${{ github.base_ref }}
+          mkdir -p .lychee
+          lychee --dump --include-fragments ${{ steps.changed-files.outputs.md_files }} > .lychee/ignore.txt || true
+
+      - name: Checkout PR branch again
+        run: git checkout ${{ github.head_ref }}
+
+      - name: Run lychee on PR changes
+        if: steps.changed-files.outputs.md_files != ''
         uses: lycheeverse/[email protected]
         with:
           args: >
-            --verbose --exclude-mail --no-progress --exclude ^https?:// 
+            --no-progress --include-fragments
+            --max-concurrency 4
+            --exclude-mail
+            --accept 200,429
+            --ignore-file .lychee/ignore.txt
             ${{ steps.changed-files.outputs.md_files }}
           failIfEmpty: false
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Provide helpful message on failure
+        if: failure()
+        run: |
+          echo "::error::Link check failed! Please review broken links above."
+          echo "If some links are false positives (e.g. behind auth, CAPTCHA),"
+          echo "you can add them to a .lycheeignore or adjust the check."
+          exit 1
+          
       - name: Check Broken Links in Entire Repo (Manual)
         if: github.event_name == 'workflow_dispatch'
         uses: lycheeverse/[email protected]
         with:
           args: >
-            --verbose --exclude-mail --no-progress --exclude ^https?:// 
+            --verbose --exclude-mail --no-progress --exclude ^https?://
             '**/*.md'
           failIfEmpty: false
           output: lychee/out.md