Update build.func

misc/build.func

@@ -158,18 +158,34 @@ arch_check() {
 
 # This function sets the APP-Name into an ASCII Header in Slant, figlet needed on proxmox main node.
 header_info() {
-  if [ -f /etc/debian_version ]; then
-    # Debian/Ubuntu
-    apt-get install -y figlet &> /dev/null
-  elif [ -f /etc/alpine-release ]; then
-    # Alpine Linux
-    apk add --no-cache figlet &> /dev/null
-  else
-    echo "Unsupported OS"
-    return 1
+  if ! command -v figlet &> /dev/null; then
+    # Check for Debian/Ubuntu-based systems
+    if [ -f /etc/debian_version ]; then
+      apt-get update -y &> /dev/null
+      apt-get install -y build-essential git &> /dev/null
+    elif [ -f /etc/alpine-release ]; then
+      # For Alpine Linux
+      apk add --no-cache build-base git ncurses &> /dev/null
+      export TERM=xterm
+    else
+      return 1
+    fi
+
+    # Build and install figlet from source
+    temp_dir=$(mktemp -d)
+    git clone https://github.com/cmatsuoka/figlet.git "$temp_dir" &> /dev/null
+    cd "$temp_dir" || exit 1
+    make &> /dev/null
+    make install &> /dev/null
+    cd - &> /dev/null
+    rm -rf "$temp_dir"
+
+    if ! command -v figlet &> /dev/null; then
+      return 1
+    fi
   fi
 
-  term_width=$(tput cols)
+  term_width=$(tput cols 2>/dev/null || echo 120)  # Fallback to 120 columns
   ascii_art=$(figlet -f slant -w "$term_width" "$APP")
   clear
   cat <<EOF