debug info for pixel validation

Author: Lucas Adamski

.github/workflows/pixel_validation.yml

@@ -63,10 +63,35 @@ jobs:
                   git push
                 fi
 
-            - name: Run pixel validation
-              run: npm run validate-defs-without-formatting -- -g ../internal-github-asana-utils/user_map.yml
+            - name: Run pixel validation (with annotations)
+              id: validate
+              shell: bash
+              run: |
+                set -o pipefail
+                LOG=validation.log
+                npm run validate-defs-without-formatting -- -g ../internal-github-asana-utils/user_map.yml 2>&1 | tee "$LOG"
+                status=$?
+                if [ $status -ne 0 ]; then
+                  echo "::group::Pixel validation errors"
+                  sed -n '1,200p' "$LOG"
+                  echo "::endgroup::"
+                  # Annotate lines that look like errors
+                  grep -i -E "error|fail" "$LOG" | sed 's/%/%25/g;s/\r/%0D/g;s/\n/%0A/g' | while read -r line; do
+                    echo "::error title=Pixel validation failed::${line}"
+                  done
+                  exit $status
+                fi
               working-directory: PixelDefinitions
 
+            - name: Upload validation log
+              if: always()
+              uses: actions/upload-artifact@v4
+              with:
+                name: pixel-validation-log
+                path: PixelDefinitions/validation.log
+                if-no-files-found: ignore
+                retention-days: 5
+