installer: add case for ash shell on alpine linux

install

@@ -96,7 +96,7 @@ download_and_install
 add_to_path() {
     local config_file=$1
     local command=$2
-    
+
     if [[ -w $config_file ]]; then
         echo -e "\n# sst" >> "$config_file"
         echo "$command" >> "$config_file"
@@ -120,6 +120,9 @@ case $current_shell in
     bash)
         config_files="$HOME/.bashrc $HOME/.bash_profile $XDG_CONFIG_HOME/bash/.bashrc $XDG_CONFIG_HOME/bash/.bash_profile"
     ;;
+    ash)
+        config_files="$HOME/.ashrc $HOME/.profile /etc/profile"
+    ;;
     *)
         # Default case if none of the above matches
         config_files="$HOME/.bashrc $HOME/.bash_profile $XDG_CONFIG_HOME/bash/.bashrc $XDG_CONFIG_HOME/bash/.bash_profile"
@@ -150,6 +153,9 @@ if [[ ":$PATH:" != *":$INSTALL_DIR:"* ]]; then
         bash)
             add_to_path "$config_file" "export PATH=$INSTALL_DIR:\$PATH"
         ;;
+        ash)
+            add_to_path "$config_file" "export PATH=$INSTALL_DIR:\$PATH"
+        ;;
         *)
             print_message warning "Manually add the directory to $config_file (or similar):"
             print_message info "  export PATH=$INSTALL_DIR:\$PATH"