fix: handle missing coverage files in CI workflows

- Check if coverage-summary.json exists before reading
- Only upload coverage percentage if file was created
- Handle missing artifacts gracefully in coverage workflow
- Prevent CI failures when coverage data is not available

Author: lainra

.github/workflows/ci.yml

@@ -53,18 +53,23 @@ jobs:
     - name: Update coverage badge
       if: matrix.node-version == '18.x' && github.ref == 'refs/heads/main' && github.event_name == 'push'
       run: |
-        # Extract coverage percentage
-        COVERAGE=$(node -e "
-          const coverage = require('./coverage/coverage-summary.json');
-          const pct = coverage.total.statements.pct;
-          console.log(pct.toFixed(2));
-        ")
-        
-        # Create a simple JSON for later use
-        echo "{\"coverage\": \"$COVERAGE\"}" > coverage-percentage.json
+        # Check if coverage file exists
+        if [ -f "coverage/coverage-summary.json" ]; then
+          # Extract coverage percentage
+          COVERAGE=$(node -e "
+            const coverage = require('./coverage/coverage-summary.json');
+            const pct = coverage.total.statements.pct;
+            console.log(pct.toFixed(2));
+          ")
+          
+          # Create a simple JSON for later use
+          echo "{\"coverage\": \"$COVERAGE\"}" > coverage-percentage.json
+        else
+          echo "Coverage file not found, skipping badge update"
+        fi
         
     - name: Upload coverage percentage
-      if: matrix.node-version == '18.x' && github.ref == 'refs/heads/main' && github.event_name == 'push'
+      if: matrix.node-version == '18.x' && github.ref == 'refs/heads/main' && github.event_name == 'push' && hashFiles('coverage-percentage.json') != ''
       uses: actions/upload-artifact@v4
       with:
         name: coverage-percentage

.github/workflows/coverage.yml

@@ -20,13 +20,22 @@ jobs:
 
     - name: Download coverage artifact
       uses: actions/download-artifact@v4
+      continue-on-error: true
+      id: download
       with:
         name: coverage-percentage
         github-token: ${{ secrets.GITHUB_TOKEN }}
         run-id: ${{ github.event.workflow_run.id }}
 
     - name: Update README badge
+      if: steps.download.outcome == 'success'
       run: |
+        # Check if coverage file exists
+        if [ ! -f "coverage-percentage.json" ]; then
+          echo "Coverage percentage file not found, skipping"
+          exit 0
+        fi
+        
         # Read coverage percentage
         COVERAGE=$(jq -r '.coverage' coverage-percentage.json)