fix changelog.sh

changelog.d/scriv.ini

@@ -1,6 +1,6 @@
 [scriv]
 format = md
 entry_title_template =
-categories = Impact, NixOS platform
+categories = Impact, NixOS XX.XX platform
 output_file = changelog.d/CHANGELOG.md.tmp
 skip_fragments = CHANGELOG.*

changelog.sh

@@ -2,8 +2,20 @@
 
 set -e
 
+if [ -z "$EDITOR" ]; then
+  echo "Error: \$EDITOR is not set or empty"
+  exit 1
+fi
+
 base="./changelog.d"
+branch=$(git rev-parse --abbrev-ref HEAD)
+
+new_item="${base}/$(date '+%Y%m%d_%H%M%S')_${branch/\//-}_scriv.md"
+template="${base}/new_fragment.md.j2"
+
+cp "$template" "$new_item"
 
-new_item="${base}/$(date '+%Y%m%d_%H%M%S')_$(git rev-parse --abbrev-ref HEAD)_scriv.md"
-cp "${base}/new_fragment.md.j2" ${new_item}
-$EDITOR $new_item
+if ! $EDITOR "$new_item" || diff -q "$template" "$new_item" > /dev/null; then
+  echo "Editor failed or content not changed. Deleting fragment..."
+  rm "${new_item}"
+fi