Revert "[Update.sh] Implemented optimized Regex Compose Detection"

This reverts commit a76e6b32f7973c79936cc9aa3dfbfc900135df3d.

update.sh

@@ -177,35 +177,38 @@ remove_obsolete_nginx_ports() {
 
 detect_docker_compose_command(){
 if ! [ "${DOCKER_COMPOSE_VERSION}" == "native" ] && ! [ "${DOCKER_COMPOSE_VERSION}" == "standalone" ]; then
-  if command -v docker compose > /dev/null 2>&1; then
-      version=$(docker compose version --short)
-      if [[ $version =~ ^2\.([0-9]+)\.([0-9]+) ]]; then
-        COMPOSE_VERSION=native
+  if docker compose > /dev/null 2>&1; then
+      if docker compose version --short | grep "2." > /dev/null 2>&1; then
+        DOCKER_COMPOSE_VERSION=native
+        COMPOSE_COMMAND="docker compose"
         echo -e "\e[31mFound Docker Compose Plugin (native).\e[0m"
         echo -e "\e[31mSetting the DOCKER_COMPOSE_VERSION Variable to native\e[0m"
         sleep 2
-        echo -e "\e[33mNotice: You´ll have to update this Compose Version via your Package Manager manually!\e[0m"
+        echo -e "\e[33mNotice: You'll have to update this Compose Version via your Package Manager manually!\e[0m"
       else
         echo -e "\e[31mCannot find Docker Compose with a Version Higher than 2.X.X.\e[0m" 
-        echo -e "\e[31mPlease update/install manually regarding to this doc site: https://mailcow.github.io/mailcow-dockerized-docs/i_u_m/i_u_m_install/\e[0m"
+        echo -e "\e[31mPlease update/install it manually regarding to this doc site: https://mailcow.github.io/mailcow-dockerized-docs/i_u_m/i_u_m_install/\e[0m"
         exit 1
       fi
-  elif command -v docker-compose > /dev/null 2>&1; then
-      version=$(docker-compose version --short)
-      if [[ $version =~ ^2\.([0-9]+)\.([0-9]+) ]]; then
-        COMPOSE_VERSION=standalone
+  elif docker-compose > /dev/null 2>&1; then
+    if ! [[ $(alias docker-compose 2> /dev/null) ]] ; then
+      if docker-compose version --short | grep "^2." > /dev/null 2>&1; then
+        DOCKER_COMPOSE_VERSION=standalone
+        COMPOSE_COMMAND="docker-compose"
         echo -e "\e[31mFound Docker Compose Standalone.\e[0m"
         echo -e "\e[31mSetting the DOCKER_COMPOSE_VERSION Variable to standalone\e[0m"
         sleep 2
         echo -e "\e[33mNotice: For an automatic update of docker-compose please use the update_compose.sh scripts located at the helper-scripts folder.\e[0m"
       else
         echo -e "\e[31mCannot find Docker Compose with a Version Higher than 2.X.X.\e[0m" 
-        echo -e "\e[31mPlease update/install manually regarding to this doc site: https://mailcow.github.io/mailcow-dockerized-docs/i_u_m/i_u_m_install/\e[0m"
+        echo -e "\e[31mPlease update/install regarding to this doc site: https://mailcow.github.io/mailcow-dockerized-docs/i_u_m/i_u_m_install/\e[0m"
         exit 1
       fi
+    fi
+
   else
     echo -e "\e[31mCannot find Docker Compose.\e[0m" 
-    echo -e "\e[31mPlease install it manually regarding to this doc site: https://mailcow.github.io/mailcow-dockerized-docs/i_u_m/i_u_m_install/\e[0m"
+    echo -e "\e[31mPlease install it regarding to this doc site: https://mailcow.github.io/mailcow-dockerized-docs/i_u_m/i_u_m_install/\e[0m"
     exit 1
   fi