Installer lts check

install/hst-install.sh

@@ -42,34 +42,62 @@ case $(head -n1 /etc/issue | cut -f 1 -d ' ') in
     *)          type="NoSupport" ;;
 esac
 
+no_support_message() {
+    echo "Your OS is currently not supported, please consider to use:"
+    echo "  Debian:  8, 9"
+    echo "  Ubuntu:  16.04, 18.04"
+    exit 1;
+}
+
 # Check if OS is supported
 if [ "$type" = "NoSupport" ]; then
-    echo "Your OS is currently not supported."
-    exit 1;
+    no_support_message
 fi
 
-# Check wget
-if [ -e '/usr/bin/wget' ]; then
-    wget -q https://raw.githubusercontent.com/hestiacp/hestiacp/master/install/hst-install-$type.sh -O hst-install-$type.sh
-    if [ "$?" -eq '0' ]; then
-        bash hst-install-$type.sh $*
-        exit
-    else
-        echo "Error: hst-install-$type.sh download failed."
-        exit 1
+check_wget_curl(){
+    # Check wget
+    if [ -e '/usr/bin/wget' ]; then
+        wget -q https://raw.githubusercontent.com/hestiacp/hestiacp/master/install/hst-install-$type.sh -O hst-install-$type.sh
+        if [ "$?" -eq '0' ]; then
+            bash hst-install-$type.sh $*
+            exit
+        else
+            echo "Error: hst-install-$type.sh download failed."
+            exit 1
+        fi
     fi
-fi
 
-# Check curl
-if [ -e '/usr/bin/curl' ]; then
-    curl -s -O https://raw.githubusercontent.com/hestiacp/hestiacp/master/install/hst-install-$type.sh
-    if [ "$?" -eq '0' ]; then
-        bash hst-install-$type.sh $*
-        exit
-    else
-        echo "Error: hst-install-$type.sh download failed."
-        exit 1
+    # Check curl
+    if [ -e '/usr/bin/curl' ]; then
+        curl -s -O https://raw.githubusercontent.com/hestiacp/hestiacp/master/install/hst-install-$type.sh
+        if [ "$?" -eq '0' ]; then
+            bash hst-install-$type.sh $*
+            exit
+        else
+            echo "Error: hst-install-$type.sh download failed."
+            exit 1
+        fi
     fi
+}
+
+
+# Detect codename for debian
+if [ "$type" = "debian" ]; then
+    release=$(cat /etc/debian_version|grep -o [0-9]|head -n1)
+    VERSION='debian'
+fi
+
+# Detect codename for ubuntu
+if [ "$type" = "ubuntu" ]; then
+    release="$(lsb_release -s -r)"
+    VERSION='ubuntu'
+fi
+
+# Check Ubuntu Version Are Acceptable to install
+if [[ "$release" =~ ^(8|9|16.04|18.04)$ ]]; then
+    check_wget_curl
+else
+    no_support_message
 fi
 
-exit
+exit