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134 lines
4.8 KiB
Bash
Executable File
134 lines
4.8 KiB
Bash
Executable File
#!/bin/bash
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# author : eshan roy
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# author url : https://eshanized.github.io/
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set -e # exit immediately if a command exits with a non-zero status
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# colors
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RED="\033[1;31m"
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GREEN="\033[1;32m"
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YELLOW="\033[1;33m"
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BLUE="\033[1;34m"
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RESET="\033[0m"
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# log file path
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LOG_FILE="/var/log/package_uninstall.log"
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# function to display error message and exit
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error_handler() {
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echo -e "\n${RED}🚨 an error occurred during the uninstallation process.${RESET}"
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echo -e "${RED}command: $BASH_COMMAND${RESET}"
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echo -e "${RED}error on line $1. please check your system and try again.${RESET}"
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echo -e "$(date) - ERROR: an error occurred during the uninstallation process for $PACKAGE" >> $LOG_FILE
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exit 1
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}
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# trap errors and call error_handler
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trap 'error_handler $LINENO' ERR
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# function to display help message
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show_help() {
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echo -e "${BLUE}usage: ${RESET}$0 <package_name> [options]"
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echo -e ""
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echo -e "${GREEN}this script will uninstall the specified package, remove its cache, and clean up orphaned packages.${RESET}"
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echo -e ""
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echo -e "${YELLOW}options:${RESET}"
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echo -e " ${GREEN}-h, --help${RESET} show this help message."
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echo -e " ${GREEN}-d, --dry-run${RESET} show what will be done without performing any actions."
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echo -e " ${GREEN}-f, --force${RESET} force removal of the package even if it has dependencies."
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echo -e " ${GREEN}-b, --backup${RESET} backup configuration files before uninstallation."
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echo -e ""
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echo -e "${YELLOW}example usage:${RESET}"
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echo -e " $0 firefox # uninstalls the firefox package and its cache."
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echo -e " $0 -d firefox # show the dry-run actions for firefox."
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echo -e " $0 -f firefox # force remove firefox package."
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echo -e " $0 -b firefox # backup configuration before uninstalling firefox."
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echo -e " $0 -h # displays this help message."
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}
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# parse command line options
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DRY_RUN=false
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FORCE=false
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BACKUP=false
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while [[ "$1" == -* ]]; do
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case "$1" in
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-h|--help) show_help; exit 0 ;;
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-d|--dry-run) DRY_RUN=true; shift ;;
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-f|--force) FORCE=true; shift ;;
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-b|--backup) BACKUP=true; shift ;;
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*) echo -e "${RED}❌ invalid option $1.${RESET}"; show_help; exit 1 ;;
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esac
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done
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# ensure the script is run as root for certain actions
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if [ "$EUID" -ne 0 ]; then
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echo -e "${RED}❌ please run this script as root or with sudo.${RESET}"
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exit 1
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fi
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# check if a package name is provided
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if [ -z "$1" ]; then
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echo -e "${RED}❌ no package specified.${RESET}"
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echo -e "usage: $0 <package_name>"
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exit 1
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fi
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PACKAGE=$1
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# check if package is installed
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if ! pacman -Qi $PACKAGE > /dev/null; then
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echo -e "${RED}❌ the package $PACKAGE is not installed on your system.${RESET}"
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exit 1
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fi
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# confirm with the user
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echo -e "${YELLOW}⚠️ warning: this script will uninstall the specified package and remove its cache.${RESET}"
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read -p "$(echo -e "${BLUE}are you sure you want to uninstall $PACKAGE and remove its cache? [y/N]: ${RESET}")" CONFIRM
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if [[ "$CONFIRM" != "y" && "$CONFIRM" != "Y" ]]; then
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echo -e "${RED}❌ operation cancelled.${RESET}"
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exit 0
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fi
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# backup configuration files (optional)
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if $BACKUP; then
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echo -e "${BLUE}🔄 backing up configuration files for $PACKAGE...${RESET}"
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backup_dir="/path/to/backup/$PACKAGE"
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mkdir -p "$backup_dir"
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cp /etc/$PACKAGE/* "$backup_dir" || { echo -e "${RED}❌ backup failed.${RESET}"; exit 1; }
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echo -e "${GREEN}✅ backup completed!${RESET}"
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fi
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# dry-run mode (only show what would be done)
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if $DRY_RUN; then
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echo -e "${YELLOW}dry-run mode enabled: the following actions would be performed.${RESET}"
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pacman -Qi $PACKAGE
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echo -e "${BLUE}would uninstall $PACKAGE, remove its cache, and clean orphaned packages.${RESET}"
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exit 0
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fi
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# force removal option
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if $FORCE; then
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echo -e "${YELLOW}⚠️ force removal enabled for $PACKAGE.${RESET}"
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sudo pacman -Rdd $PACKAGE --noconfirm || { echo -e "${RED}❌ failed to force remove $PACKAGE.${RESET}"; exit 1; }
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else
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# uninstall the package and its dependencies
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echo -e "${BLUE}📦 uninstalling $PACKAGE...${RESET}"
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sudo pacman -Rns $PACKAGE --noconfirm || { echo -e "${RED}❌ failed to uninstall $PACKAGE.${RESET}"; exit 1; }
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fi
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# remove the package's cache
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echo -e "${BLUE}🗑️ removing cache for $PACKAGE...${RESET}"
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sudo pacman -Sc --noconfirm || echo -e "${YELLOW}❗ cache removal skipped.${RESET}"
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# clean up orphaned packages
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echo -e "${BLUE}🧹 cleaning up orphaned packages...${RESET}"
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sudo pacman -Rns $(pacman -Qtdq) --noconfirm || echo -e "${YELLOW}no orphaned packages to remove.${RESET}"
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# log the uninstallation
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echo -e "$(date) - successfully uninstalled $PACKAGE" >> $LOG_FILE
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echo -e "\n${GREEN}✅ package $PACKAGE successfully uninstalled!${RESET}"
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exit 0
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