#! /bin/sh

set -e

if [ ! -f /etc/python3.7/sitecustomize.py ]; then
    cat <<-EOF
	# Empty sitecustomize.py to avoid a dangling symlink
EOF
fi

case "$1" in
    configure)
        # Create empty directories in /usr/local
        if [ ! -e /usr/local/lib/python3.7 ]; then
            mkdir -p /usr/local/lib/python3.7 2> /dev/null || true
            chmod 2775 /usr/local/lib/python3.7 2> /dev/null || true
            chown root:staff /usr/local/lib/python3.7 2> /dev/null || true
        fi
	localsite=/usr/local/lib/python3.7/dist-packages
        if [ ! -e $localsite ]; then
            mkdir -p $localsite 2> /dev/null || true
            chmod 2775 $localsite 2> /dev/null || true
            chown root:staff $localsite 2> /dev/null || true
        fi

	if which update-binfmts >/dev/null; then
	    update-binfmts --import python3.7
	fi

    ;;
esac

if [ "$1" = configure ]; then

    # only available before removal of the packaging package
    rm -f /etc/python3.7/sysconfig.cfg

    if ls -L /usr/lib/python3.7/sitecustomize.py >/dev/null 2>&1; then
	filt='cat'
    else
	filt='fgrep -v sitecustomize.py'
    fi
    files=$(dpkg -L libpython3.7-minimal:amd64 \
		| sed -n '/^\/usr\/lib\/python3.7\/.*\.py$/p' | $filt)
    if [ -n "$files" ]; then
	/usr/bin/python3.7 -E -S /usr/lib/python3.7/py_compile.py $files
	if grep -sq '^byte-compile[^#]*optimize' /etc/python/debian_config; then
	    /usr/bin/python3.7 -E -S -O /usr/lib/python3.7/py_compile.py $files
	fi
    else
	echo >&2 "python3.7-minimal: can't get files for byte-compilation"
    fi
    bc=no
    #if [ -z "$2" ] || dpkg --compare-versions "$2" lt 2.5-3 \
    #    || [ -f /var/lib/python/python3.7_installed ]; then
    #	bc=yes
    #fi
    if ! grep -sq '^supported-versions[^#]*python3.7' /usr/share/python/debian_defaults
    then
	# FIXME: byte compile anyway?
	bc=no
    fi
    if [ "$bc" = yes ]; then
	# new installation or installation of first version with hook support
	if [ "$DEBIAN_FRONTEND" != noninteractive ]; then
	    echo "Linking and byte-compiling packages for runtime python3.7..."
	fi
	version=$(dpkg -s python3.7-minimal | awk '/^Version:/ {print $2}')
	for hook in /usr/share/python3/runtime.d/*.rtinstall; do
	    [ -x $hook ] || continue
	    $hook rtinstall python3.7 "$2" "$version"
	done
	if [ -f /var/lib/python/python3.7_installed ]; then
	    rm -f /var/lib/python/python3.7_installed
	    rmdir --ignore-fail-on-non-empty /var/lib/python 2>/dev/null
	fi
    fi
fi



exit 0