fix: Only run if new version > old. regex fixes for ripgrep users.

This patch will ensure that the regex portions run regardless of if the
user is running ripgrep or not.
This also adds checking that the new version is a higher version number
than the old number. Also nicer login for if this is the first run and
there have been no versions committed yet.

release_kpz.sh

@@ -3,6 +3,7 @@
 RED="\033[0;31m"
 NC="\033[0m" # No colour
 GREEN="\033[0;32m"
+YELLOW="\033[1;33m"
 
 echo "Creating and releasing .kpz file"
 
@@ -30,10 +31,21 @@ else
     NEW_VERSION_NUMBER=${NEW_VERSION:1}
 fi
 
-PREVIOUS_VERSION=$(git log --pretty=oneline | grep -P -m 1 -o "v[\d|.]{1,6}")
-PREVIOUS_VERSION_NUMBER=${PREVIOUS_VERSION:1}
+PREVIOUS_VERSION=$(git log --pretty=oneline | grep -m 1 -o "v[0-9.]\{1,6\}")
+if [ -z "$PREVIOUS_VERSION" ]; then
+    echo -e "${YELLOW}No previous version found. Assuming this is the first release.${NC}"
+    PREVIOUS_VERSION_NUMBER="v0.0.0" # Assuming 0 as the initial version for comparison
+else
+    PREVIOUS_VERSION_NUMBER=${PREVIOUS_VERSION:1}
+fi
+echo -e "Previous version: $PREVIOUS_VERSION"
+echo -e "New version: $NEW_VERSION"
+
+# Comparing versions
+VERSION_COMPARISON=$(echo -e "$PREVIOUS_VERSION_NUMBER\n$NEW_VERSION_NUMBER" | sort -V | head -n 1)
+echo -e "Version comparison: $VERSION_COMPARISON"
 
-if [ "$NEW_VERSION_NUMBER" != "$PREVIOUS_VERSION_NUMBER" ]; then
+if [ "$VERSION_COMPARISON" != "$PREVIOUS_VERSION_NUMBER" ]; then
     echo -e "${GREEN}Version has been updated from $PREVIOUS_VERSION_NUMBER to $NEW_VERSION_NUMBER - checking remotes and starting upload${NC}"
 
     REMOTES=$(git remote -v)