#!/bin/bash -eux
# vi: ts=4 expandtab
#
# Generate the compressed root directory for WSL

case ${SUBPROJECT:-} in
    minimized)
        echo "Skipping minimized $0 build as WSL systems are designed to be interactive"
        exit 0
        ;;
    *)
        ;;
esac

case $ARCH in
    amd64|arm64)
        ;;
    *)
        echo "WSL root tarballs are not generated for $ARCH."
        exit 0;;
esac

if [ -n "${SUBARCH:-}" ]; then
    echo "Skipping rootfs build for subarch flavor build"
    exit 0
fi

. config/functions

rootfs_dir=wslroot.dir

# This is the directory created by create-root-dir.binary
cp -a rootfs.dir $rootfs_dir

setup_mountpoint $rootfs_dir

env DEBIAN_FRONTEND=noninteractive chroot $rootfs_dir apt-get -y -qq install ubuntu-wsl
env DEBIAN_FRONTEND=noninteractive chroot $rootfs_dir apt-get autoremove --purge --assume-yes

create_manifest $rootfs_dir livecd.ubuntu-cpc.wsl.rootfs.manifest
teardown_mountpoint $rootfs_dir

# remove attributes not supported by WSL's tar
if [ -d $rootfs_dir/var/log/journal ]; then
    setfattr -x system.posix_acl_access $rootfs_dir/var/log/journal
    setfattr -x system.posix_acl_default $rootfs_dir/var/log/journal
fi

# The reason not using just tar .. -C $rootfs_dir . is that using '.' was found
# not working once and checking if using the simpler command is safe needs
# verification of the app installation on all Windows 10 builds we support
# with WSL.
cd $rootfs_dir
tar --xattrs --sort=name -czf ../livecd.ubuntu-cpc.wsl.rootfs.tar.gz *
cd ..

rm -rf $rootfs_dir