fix

.github/workflows/changelog.yml

@@ -17,7 +17,7 @@ jobs:
 
     - name: Run Go Changelog Generator
       run: |
-        # Run the Go changelog generator, pass the release tag if available
+        # Run the Go changelog generator, passing the release tag if available
         if [ "${{ github.event.release.tag_name }}" = "latest" ]; then
           go run tools/changelog.go > "${{ github.event.release.tag_name }}-changelog.md"
         else
@@ -26,7 +26,7 @@ jobs:
 
     - name: Handle changelog files
       run: |
-        # Remove the 'v' prefix from the tag name and extract Major.Minor version
+        # Extract Major.Minor version by removing the 'v' prefix from the tag name
         TAG_NAME=${{ github.event.release.tag_name }}
         CHANGELOG_VERSION_NUMBER=$(echo "$TAG_NAME" | sed 's/^v//' | grep -oP '^\d+\.\d+')
 
@@ -36,21 +36,23 @@ jobs:
 
         # Check if the changelog file for the current release already exists
         if [ -f "$CHANGELOG_PATH" ]; then
-          # If the file exists, append the current content to the temporary changelog
+          # If the file exists, append the new changelog to the existing one
           cat "$CHANGELOG_PATH" >> "${TAG_NAME}-changelog.md"
           # Overwrite the existing changelog with the updated content
           mv "${TAG_NAME}-changelog.md" "$CHANGELOG_PATH"
         else
-          # If it doesn't exist, rename the temp changelog to the new changelog file
+          # If the changelog file doesn't exist, rename the temp changelog file to the new changelog file
           mv "${TAG_NAME}-changelog.md" "$CHANGELOG_PATH"
 
-          # Update CHANGELOG/README.md with the new file in reverse order
+          # Ensure that README.md exists
           if [ ! -f "CHANGELOG/README.md" ]; then
             echo -e "# CHANGELOGs\n" > CHANGELOG/README.md
           fi
           
-          # Insert the new changelog at the top of the README.md file
-          sed -i "2s/^/- [$CHANGELOG_FILENAME](./$CHANGELOG_FILENAME)\n/" CHANGELOG/README.md
+          # Add the new changelog entry at the top of the README.md
+          if ! grep -q "\[$CHANGELOG_FILENAME\]" CHANGELOG/README.md; then
+            sed -i "2i- [$CHANGELOG_FILENAME](./$CHANGELOG_FILENAME)" CHANGELOG/README.md
+          fi
         fi
 
     - name: Clean up