systemrescue-backup/scripts/os_arch

#!/bin/bash

restoreDir="/etc/restore"

hook_before() {
    mkdir -p "$restoreDir" || exit 1
    pushd "$restoreDir" || exit 2

    pacman -Qqe > "pkglist.txt"
    comm -13 <(pacman -Qqdt | sort) <(pacman -Qqdtt | sort) > optdeplist.txt
    pacman -Qqem > foreignpkglist.txt
    
    cat > restore.sh <<EOF
#!/bin/bash

# Install non-foreign packages from pgklist:
pacman -S --needed \$(comm -12 <(pacman -Slq | sort) <(sort pkglist.txt))

# Remove packages not listed.
#pacman -Rsu \$(comm -23 <(pacman -Qq | sort) <(sort pkglist.txt))

# Install AUR packages
paru -Sa --fm thunar - <foreign-pkglist.txt

EOF
    popd || exit 2
}

hook_after() {
    :
}

hook_fail() {
    :
}

hook_final() {
    :
}

case "$1" in
    before)     hook_before     || exit $?;;
    after)      hook_after      || exit $?;;
    fail)       hook_fail       || exit $?;;
    finally)    hook_final      || exit $?;;
esac