AptMan/aptman

#!/bin/bash

#############################################################################
##
## A thin wrapper that translates humanly understandable "apt-like" commands
## to the enigma-esque syntax that is used by 'pacman'.
##
#############################################################################

if ! command -v pacman &> /dev/null
then
    echo "ERROR: 'pacman' could not be found."
    echo "Make sure it is installed and in your PATH!"
    exit 1
fi

PREFIX=""
target_env="$MSYSTEM"
cmd=""

if [ "$1" == "-t" ]
then
    shift
    target_env="${1^^}" #make uppercase
    shift

    case "$target_env" in
        MSYS|msys|ALL|all)
            PREFIX=""
            ;;
        MINGW64|mingw64)
            PREFIX="mingw-w64-x86_64-"
            ;;
        UCRT64|ucrt64)
            PREFIX="mingw-w64-ucrt-x86_64-"
            ;;
        CLANG64|clang64)
            PREFIX="mingw-w64-clang-x86_64-"
            ;;
        MINGW64|mingw64)
            PREFIX="mingw-w64-i686-"
            ;;
        CLANG32|clang32)
            PREFIX="mingw-w64-clang-i686-"
            ;;
        CLANGARM64|clangarm64)
            PREFIX="mingw-w64-clang-aarch64-"
            ;;
        *)
            echo "ERROR: Unknown environment '$target_env' given."
            exit
            ;;
        esac
else
    if [ "$MSYSTEM" != "MSYS" ]
    then
        PREFIX="$MINGW_PACKAGE_PREFIX""-"
    fi
fi

cmd="$1" # catch first arguments with $1 
shift # drop the first argument from "$@"

case "$cmd" in
    update)
        # Update local package repo/cache
        echo "Updating package index ..."
        pacman -Sy
        echo "$(pacman -Qu | wc -l) packages can be upgraded."
        ;;
    upgrade)
        # Perform package upgrade
        echo "Installing package upgrades ..."
        pacman -Syu
        ;;
    upgradeable)
        # Show which pacakges have an upgrade available
        echo "Listing up upgradeable packages ..."
        pacman -Qu
        ;;
    install|reinstall)
        # (re)Install a package and its dependencies
        echo "Installing '$@' from '$target_env' ..."
        pacman -S "$PREFIX$@"
        ;;
    remove)
        # Remove package - keep dependencies
        echo "Removing '$@' from '$target_env' ..."
        pacman -R "$PREFIX$@"
        echo ""
        echo "If you want to remove unused dependencies, run 'aptman autoremove'"
        echo "or consider 'aptman purge [PKG]' next time."
        ;;
    autoremove)
        # Remove orphaned packages
        echo "Removing orphaned packages ..."
        pacman -Qdtq | pacman -Rs -
        ;;
    purge)
        # Remove package, dependencies and all of the config files
        echo "Removing '$@', configurations and dependencies from '$target_env' ..."
        pacman -Rns "$PREFIX$@"
        ;;
    check)
        # Check & potentially fix broken dependencies
        echo "Checking & (potentially fixing) broken dependencies ..."
        pacman -Dk
        ;;
    search)
        # Search for available packages
        echo "Searching packages for '$@' in '$target_env' ..."
        if [ "$PREFIX" ]
        then
            pacman -Ss "$@" "$PREFIX"
        else
            pacman -Ss "$@"
        fi
        ;;
    show)
        # Show info for a package
        echo "Showing info for '$PREFIX$@' ..."
        pacman -Si "$PREFIX$@"
        ;;
    clean)
        # Clean up pacman cache
        # --> All the cached packages that are not installed, and unused sync database
        echo "Cleaning up pacman cache ..."
        pacman -Sc
        ;;
    cleaner)
        # Clean up pacman caches HARDER
        # --> To remove ALL files from the cache directory
        echo "Cleaning up pacman cache REALLY HARD ..."
        pacman -Scc
        ;;
    *)
        # else
        echo "Usage: aptman [...]"
        echo "---------------------------------------"
        echo "update              - Update packages"
        echo "upgrade             - Install upgrades" 
        echo "upgradeable         - List upgradeable packages"
        echo "install | reinstall - (re)Install packages"
        echo "remove              - Uninstall package"
        echo "autoremove          - Uninstalling orphaned packages"
        echo "purge               - Uninstall package, dependencies and clean config"
        echo "check               - Check for broken dependencies"
        echo "search              - Search package"
        echo "show                - Show package info"
        echo "clean | cleaner     - Clean up pacman cache"
        ;;
esac