update

README.md

@@ -5,14 +5,14 @@
 | |_| |  _ <| |_| | |_) / __/    | | |  _  | |___| |  | | |___ ___) |
  \____|_| \_\\___/|____/_____|   |_| |_| |_|_____|_|  |_|_____|____/
 
-
 ```
 
-##Flat Design themes for Grub2.
+## Flat Design themes for Grub2.
 
 ## Install
 
 Usage:  `sudo ./install.sh`  **[OPTIONS...]**
+
 *if no option used the terminal user interface will be show up*
 
 |  OPTIONS:      | |

install.sh

@@ -2,7 +2,6 @@
 
 # Grub2 Dark Theme
 
-
 ROOT_UID=0
 THEME_DIR="/boot/grub/themes"
 THEME_DIR_2="/boot/grub2/themes"
@@ -40,23 +39,11 @@ prompt () {
   esac
 }
 
-
-#  print "GRUB THEME"   whene the script is launched                             
-ascii_art_header ()  { 
-    [[ -f README.md ]] && {             
-        header_title=$(sed -n 2,8p README.md) 
-        prompt -i "$header_title" 
-    }     
-} 
-#ascii_art_header                                    # uncomment this line to show Grub theme ascii art 
-
-
 # Check command avalibility
 function has_command() {
   command -v $1 > /dev/null
 }
 
-
 usage() {
   printf "%s\n" "Usage: ${0##*/} [OPTIONS...]"
   printf "\n%s\n" "OPTIONS:"
@@ -68,7 +55,6 @@ usage() {
 }
 
 install() {
-
   if [[ ${theme} == 'slaze' ]]; then
     local name="Slaze"
   elif [[ ${theme} == 'stylish' ]]; then
@@ -78,23 +64,23 @@ install() {
   elif [[ ${theme} == 'vimix' ]]; then
     local name="Vimix"
   else
-    echo -e "\n Please run ./install.sh with option, run ./install.sh -h for help!"
+    prompt -i "\n Run sudo ./install.sh again! or run ./install.sh -h for help"
     exit 0
   fi
 
- 
   # Checking for root access and proceed if it is present
   if [ "$UID" -eq "$ROOT_UID" ]; then
 
     # Create themes directory if not exists
     echo -e "\n Checking for the existence of themes directory..."
+
     [[ -d ${THEME_DIR}/${name} ]] && rm -rf ${THEME_DIR}/${name}
     [[ -d ${THEME_DIR_2}/${name} ]] && rm -rf ${THEME_DIR_2}/${name}
     [[ -d /boot/grub ]] && mkdir -p ${THEME_DIR}/${name}
     [[ -d /boot/grub2 ]] && mkdir -p ${THEME_DIR_2}/${name}
 
     # Copy theme
-    prompt -i "Installing ${name} theme..."
+    prompt -i "\n Installing ${name} theme..."
 
     if [ -d /boot/grub ]; then
       cp -a ${REO_DIR}/common/* ${THEME_DIR}/${name}
@@ -123,14 +109,14 @@ install() {
     fi
 
     # Set theme
-    prompt -i "Setting ${name} as default..."
+    prompt -i "\n Setting ${name} as default..."
     grep "GRUB_THEME=" /etc/default/grub 2>&1 >/dev/null && sed -i '/GRUB_THEME=/d' /etc/default/grub
 
     [[ -d /boot/grub ]] && echo "GRUB_THEME=\"${THEME_DIR}/${name}/theme.txt\"" >> /etc/default/grub
     [[ -d /boot/grub2 ]] && echo "GRUB_THEME=\"${THEME_DIR_2}/${name}/theme.txt\"" >> /etc/default/grub
 
     # Update grub config
-    prompt -i "Updating grub config..."
+    prompt -i "\n Updating grub config..."
     if has_command update-grub; then
       update-grub
     elif has_command grub-mkconfig; then
@@ -140,11 +126,11 @@ install() {
     fi
 
     # Success message
-    prompt -s "All done!"
+    prompt -s "\n All done!"
 
   else
     # Error message
-    prompt -e "\n[ E r r o r ] -> Run me as root "
+    prompt -e "\n [ E r r o r ] -> Run me as root "
 
     # persisted execution of the script as root
     read -p "[ trusted ] specify the root password : " -t${MAX_DELAY} -s
@@ -159,9 +145,8 @@ install() {
   fi
 }
 
-# show terminal user interface for better use 
-if [[ $# -lt 1 ]]  ;then 
-    if [[ -x /usr/bin/dialog ]] ; then 
+run_dialog() {
+  if [[ -x /usr/bin/dialog ]]; then
     tui=$(dialog --backtitle "Grub 2 Themes" \
     --radiolist "Choose your Grub theme : " 15 40 5 \
       1 "Slaze Theme" off  \
@@ -175,9 +160,53 @@ if [[ $# -lt 1 ]]  ;then
         4) theme="vimix"     ;;
         *) prompt "Canceled" ;;
      esac
+  fi
+}
+
+install_dialog() {
+  if [ ! "$(which dialog 2> /dev/null)" ]; then
+    prompt -i "\n 'dialog' needs to be installed for this shell "
+    if has_command zypper; then
+
+      sudo zypper in dialog
+        elif has_command apt-get; then
 
+      sudo apt-get install dialog
+        elif has_command dnf; then
+
+      sudo dnf install dialog
+        elif has_command yum; then
+
+      sudo yum install dialog
+        elif has_command pacman; then
+
+      sudo pacman -S --noconfirm dialog
+    fi
   fi
+}
+
+# show terminal user interface for better use
+if [[ $# -lt 1 ]] && [[ $UID -eq $ROOT_UID ]]; then
+  run_dialog
+fi
+
+if [[ $# -lt 1 ]] && [[ $UID -ne $ROOT_UID ]]; then
+
+    # Error message
+    prompt -e "\n [ Error!] -> Run me as root "
+
+    # persisted execution of the script as root
+    read -p "[ trusted ] specify the root password : " -t${MAX_DELAY} -s
+    [[ -n "$REPLY" ]]&& {
+      sudo -S <<< $REPLY $0
+    }|| {
+      prompt  "\n Operation canceled  Bye"
+      exit 1
+    }
+
+    run_dialog
 fi
+
 while [[ $# -ge 1 ]]; do
   case "${1}" in
     -l|--slaze)
@@ -197,12 +226,14 @@ while [[ $# -ge 1 ]]; do
       exit 0
       ;;
     *)
-            prompt  -e "ERROR: Unrecognized installation option '$1'."
-            prompt  -i "Try '$0 --help' for more information."
+      prompt  -e "\n ERROR: Unrecognized installation option '$1'."
+      prompt  -i "\n Try '$0 --help' for more information."
       exit 1
       ;;
   esac
   shift
 done
 
-install
+install_dialog && install
+
+exit 0