Write boilerplate shell for managing Arch packages

installs/arch.sh

@@ -1,48 +1,99 @@
 #!/usr/bin/env bash
 
-# List of packages to be installed on Arch-based systems
-# Desktop apps installed via Flatpak, PKGBUILDs via Pacman
-# Apps are sorted by category, and arranged alphabetically
-# Be sure to delete / comment out anything you do not need
-
-set -e
+###############################################################
+# Installs listed packages on Arch-based systems via Pacman   #
+# Doesn't include desktop apps, that're managed via Flatpak   #
+# Apps are sorted by category, and arranged alphabetically    #
+# Be sure to delete / comment out anything you do not need    #
+# For more info, see: https://wiki.archlinux.org/title/Pacman #
+###############################################################
+# MIT Licensed (C) Alicia Sykes 2022 <https://aliciasykes.com>#
+###############################################################
 
 # Apps to be installed via Pacman
 pacman_apps=(
-  # Apps
-  
-  
-  # Development
-  
-
-  # Utils
-
-  # Security Utils
-
-
-  # Netowking
-
 
 )
 
 
 
+# Colors
 CYAN_B='\033[1;96m'
-YELLOW_B='\033[1;93m'
-RED_B='\033[1;31m'
-GREEN_B='\033[1;32m'
+YELLOW='\033[0;93m'
 RESET='\033[0m'
+GREEN='\033[0;32m'
+PURPLE='\033[0;35m'
+LIGHT='\x1b[2m'
 
-echo "${CYAN_B}Installing Arch Packages...${RESET}"
+PROMPT_TIMEOUT=15 # When user is prompted for input, skip after x seconds
 
-# Pacman
-if hash pacman 2> /dev/null; then
-  for app in ${pacman_apps[@]}; do
-    # If pacman -Qk ${app}
-    # And If: flatpak list --columns=ref | grep 'ch.protonmail.protonmail-bridge'
-    pacman -S ${app}
-  done
-else
-  echo "${YELLOW_B}Pacman not present, skipping${RESET}"
+# Print intro message
+echo -e "${PURPLE}Starting Arch app install / update script"
+echo -e "${LIGHT}The following script is for Arch / Arch-based headless systems, and will"
+echo -e "update database, upgrade packages, clear cache then install all listed CLI apps."
+echo -e "${YELLOW}Before proceeding, ensure your happy with all the packages listed in \e[4m${0##*/}"
+echo -e "${RESET}"
+
+# Check if running as root, and prompt for password if not
+if [ "$EUID" -ne 0 ]; then
+  echo -e "${PURPLE}Elevated permissions are required to adjust system settings."
+  echo -e "${CYAN_B}Please enter your password...${RESET}"
+  sudo -v
+  if [ $? -eq 1 ]; then
+    echo -e "${YELLOW}Exiting, as not being run as sudo${RESET}"
+    exit 1
+  fi
 fi
 
+# Check pacman actually installed
+if ! hash pacman 2> /dev/null; then
+  echo "${YELLOW_B}Pacman doesn't seem to be present on your system. Exiting...${RESET}"
+  exit 1
+fi
+
+# Prompt user to update package database
+echo -e "${CYAN_B}Would you like to update package database? (y/N)${RESET}\n"
+read -t $PROMPT_TIMEOUT -n 1 -r
+echo
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+  echo -e "${PURPLE}Updating dadatbase...${RESET}"
+  sudo pacman -Syy --noconfirm
+fi
+
+# Prompt user to upgrade currently installed packages
+echo -e "${CYAN_B}Would you like to upgrade currently installed packages? (y/N)${RESET}\n"
+read -t $PROMPT_TIMEOUT -n 1 -r
+echo
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+  echo -e "${PURPLE}Upgrading installed packages...${RESET}"
+  sudo pacman -Syu --noconfirm
+fi
+
+# Prompt user to clear old package caches
+echo -e "${CYAN_B}Would you like to clear unused package caches? (y/N)${RESET}\n"
+read -t $PROMPT_TIMEOUT -n 1 -r
+echo
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+  echo -e "${PURPLE}Freeing up disk space...${RESET}"
+  sudo pacman -Sc --noconfirm
+fi
+
+# Prompt user to install all listed apps
+echo -e "${CYAN_B}Would you like to install listed apps? (y/N)${RESET}\n"
+read -t $PROMPT_TIMEOUT -n 1 -r
+echo
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+  echo -e "${PURPLE}Starting install...${RESET}"
+  for app in ${pacman_apps[@]}; do
+    if hash "${app}" 2> /dev/null; then
+      echo -e "${YELLOW}[Skipping]${LIGHT} ${app} is already installed${RESET}"
+    elif hash flatpak 2> /dev/null && [[ ! -z $(echo $(flatpak list --columns=ref | grep $app)) ]]; then
+      echo -e "${YELLOW}[Skipping]${LIGHT} ${app} is already installed via Flatpak${RESET}"
+    else
+      echo -e "${PURPLE}[Installing]${LIGHT} Downloading ${app}...${RESET}"
+      # pacman -S ${app} --noconfirm
+    fi
+  done
+fi
+
+echo -e "${PURPLE}Finished installing / updating Arch packages.${RESET}"