Enhance release message generation in CI workflow

- Improved handling of the {{COMMITS}} placeholder to support multi-line content.
- Introduced a while loop for safe replacement of multi-line commit messages.
- Added temporary files for intermediate processing to ensure accurate output.

This change ensures that release notes are generated correctly, even when multiple commits are included.

.forgejo/workflows/ci.yaml

@@ -131,14 +131,32 @@ jobs:
           fi
           
           # Replace placeholders in template
+          # Handle COMMITS separately due to multi-line content that can break sed
+          # First, replace all single-line placeholders
           sed -e "s|{{VERSION}}|$VERSION|g" \
               -e "s|{{IMAGE_NAME}}|$IMAGE_NAME|g" \
               -e "s|{{COMMIT_HASH}}|$COMMIT_HASH|g" \
               -e "s|{{COMMIT_SHORT}}|$COMMIT_SHORT|g" \
               -e "s|{{BUILD_DATE}}|$BUILD_DATE|g" \
               -e "s|{{COMMIT_AUTHOR}}|$COMMIT_AUTHOR|g" \
-              -e "s|{{COMMITS}}|$COMMITS|g" \
+              "$TEMPLATE_FILE" > /tmp/release_message_temp.txt
-              "$TEMPLATE_FILE" > /tmp/release_message.txt
+          
+          # Replace COMMITS placeholder - use a while loop to handle multi-line safely
+          if [[ -n "$COMMITS" ]]; then
+            # Write COMMITS to a temp file and use it for replacement
+            echo "$COMMITS" > /tmp/commits.txt
+            # Use a simple approach: read template line by line and replace
+            while IFS= read -r line; do
+              if [[ "$line" == *"{{COMMITS}}"* ]]; then
+                cat /tmp/commits.txt
+              else
+                echo "$line"
+              fi
+            done < /tmp/release_message_temp.txt > /tmp/release_message.txt
+          else
+            # If no commits, just remove the placeholder
+            sed 's|{{COMMITS}}||g' /tmp/release_message_temp.txt > /tmp/release_message.txt
+          fi
           
           echo "Release notes generated from template"