DPM Dosbox Package Manager v.0.1

dpm

#!/bin/bash
set -eu

ME="${0##*/}"
PWDROM="/home/ruben/Juegos/dosbox/rom"
EXTROM=".tar.zst"
INFO="Dosbox Package Manager\nUse: $ME <action> [<rom_package>|<directory>]\nAvailable actions:\n    launch <romfile>: Launch a rom package in dosbox\n    list: List roms\n    pack <directory>: Compress a game into a rom package\n    unpack <romfile>: Decompresses a rom package into a directory\nLibrary location: \"$PWDROM\"\n"

if [ "$#" -lt 1 ]; then
    echo -e "$INFO"
    exit
fi

launch() {
    # Clean any path in ROM name
    ROMPACK=$(basename -- "$1")
    if [ ! -f "$PWDROM/$ROMPACK" ]; then
        echo "$ME: Game rom pack '$PWDROM/$ROMPACK' doesn't exist"
        return
    fi
    TMPDIR="/dev/shm/dosbox/${ROMPACK%%.*}"
    mkdir -p "$TMPDIR"
    cd "$TMPDIR"
    bsdtar xf "$PWDROM/$ROMPACK"
    dosbox -conf "${ROMPACK%%.*}.dosboxconf"
    rm -r /dev/shm/dosbox
}

pack() {
    PACKDIR="$PWDROM/$1"
    if [ ! -d "$PACKDIR" ]; then
        echo "$ME: Game directory doesn't exist"
        return
    fi
    cd "$PWDROM/$1"
    bsdtar --zstd --options zstd:compression-level=19,zstd:threads=0 -cf "../${1%/}$EXTROM" -- *
    cd ..
    rm -r "$1"
}

unpack() {
    if [ ! -f "$PWDROM/$1" ]; then
        echo "$ME: Game rom pack doesn't exist"
        return
    fi
    UNPACKDIR="$PWDROM/${1%%.*}"
    mkdir "$UNPACKDIR"
    cd "$UNPACKDIR"
    bsdtar xf "$PWDROM/$1"
}

list() {
    ls -1 "$PWDROM"
}

case "$1" in
	list) $1;;
	pack|unpack|launch) [ "$#" -gt 1 ] && $1 "$2" || echo -e "$INFO";;
	*) echo "$INFO";;
esac

This is an attempt to emulate thought a script the game packing functionality implemented in Dosbox-Pure , games are packed in tar.zst files which are quickly unpacked in /dev/shm (RAM) and the program expects a .dosboxconf file in the root of the packed file which will use to launch the game. Works pretty well for me, still lacks saving any change occurred during the game I plan to do that in the future as there are some tools available for that in the command line stack.