Suggest minor bump on breaking changes

https://www.conventionalcommits.org/en/v1.0.0/

closed #11

scripts/release.sh

@@ -1,5 +1,8 @@
 #!/bin/bash
 
+YELLOW="\e[0;33m"
+RESET="\e[0m"
+
 if [ ! -f ./scripts/run_tests.sh ]
 then
 	echo "Error: ./scripts/run_tests.sh not found"
@@ -82,6 +85,21 @@ then
 	exit 1
 fi
 
+function commits_since_last_tag() {
+	git log "$(git describe --tags --abbrev=0)..HEAD" --pretty=format:'%s'
+}
+
+function list_api_breaking_commits() {
+	printf '%b' "$YELLOW"
+	if commits_since_last_tag | grep -F '!: '
+	then
+		printf '%b' "$RESET"
+		return 0
+	fi
+	printf '%b' "$RESET"
+	return 1
+}
+
 if ! latest_tag="$(git tag | sort -V | tail -n1)"
 then
 	echo "Error: failed to get latest tag"
@@ -101,6 +119,18 @@ echo " - change internal (local variables etc) api -> patch version bump"
 echo " - drastic user affecting change -> major version bump"
 echo "Only a patch version change should NEVER break a users code"
 echo "==================================================================="
+
+echo ""
+
+if list_api_breaking_commits
+then
+	echo ""
+	echo "=!= Found api breaking commits! See list above ^^^              =!="
+	echo "=!= Do at least a minor version jump due to breaking changes    =!="
+	echo "=!= https://www.conventionalcommits.org/en/v1.0.0/              =!="
+	echo "==================================================================="
+fi
+
 read -r -p "tag name: " -i "$latest_tag" -e tag_name
 if [ "$tag_name" == "" ]
 then