irpf

#!/bin/bash

run_irpf() {
        local prog=$1 dir=$2
        echo 'Inside the unshared environment'
        echo "Bind mounting $dir -> /home/ian"
        mount --bind "$dir" /home/ian/
        echo "Running $prog"
        su - ian -- /usr/lib/jvm/java-11-openjdk/bin/java -jar "$1"
}
export -f run_irpf

progs=$(find /usr/local/lib/irpf -mindepth 1 -maxdepth 1 -type d -exec basename {} \; |
        sort -r | paste -sd \|)
dirs=$(find ~/leao/ -mindepth 1 -maxdepth 1 -type d | paste -sd \|)
zenity --forms \
        --add-combo='Programa IRPF' --combo-values="$progs" \
        --add-combo='Directory' --combo-values="$dirs" \
        --add-entry='Custom directory' | {
        if IFS=\| read -r -a ans; then
                prog=${ans[0]:+/usr/local/lib/irpf/${ans[0]}/irpf.jar}
                dir=${ans[2]:-${ans[1]}}
                unshare --user --map-root-user \
                        unshare --mount --propagation=unchanged \
                        bash -c "run_irpf \"$prog\" \"$dir\""
        fi
}