@ -16,102 +16,10 @@ esac
setfattr -x system.posix_acl_access chroot/var/log/journal
setfattr -x system.posix_acl_default chroot/var/log/journal
# is_lts returns true if the given release is a LTS.
is_lts() {
release_version="$1"
year=$(echo "${release_version}" | cut -d'.' -f1)
month=$(echo "${release_version}" | cut -d'.' -f2)
if [ "${month}" != "04" ]; then
echo "false"
return
fi
last_year_digit="${year: -1}"
if [ $((last_year_digit % 2)) -ne 0 ]; then
echo "false"
return
fi
echo "true"
}
# is_current_lts_release returns for a given lts release is we are in the year preceeding or 2 years succeeding a release.
# Note that it will mark as "current" a lts release zeven if there is a next one released until the end of the +2 year.
is_current_lts_release() {
release_version="$1"
current_year="$2"
year=$(echo "$release_version" | cut -d'.' -f1)
if [ $(is_lts "${version}") != "true" ]; then
echo "false"
return
fi
if [ "$((year - 1))" -le "${current_year}" ] && [ "${current_year}" -le "$((year + 2))" ]; then
echo "true"
return
fi
echo "false"
}
# Function to check if a version is a development release
is_development_release() {
local version=$1
local current_year=$2
local current_month=$3
local year=$(echo $version | cut -d. -f1)
local month=$(echo $version | cut -d. -f2)
if [ "${year}" -gt "${current_year}" ] || ([ "${year}" -eq "${current_year}" ] && [ "${month}" -gt "${current_month}" ]); then
echo "true"
return
fi
echo "false"
}
# create_archive_with_upgrade_policy modifies the prompting upgrade policy
# and create a separate rootfs for this upgrade policy, named after app_id.
# The reason not using just tar .. -C chroot . 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.
create_archive_with_upgrade_policy() {
upgrade_policy=$1
app_id=$2
cd chroot
sed -i "s#Prompt=.*#Prompt=${upgrade_policy}#" ./etc/update-manager/release-upgrades
tar --xattrs --sort=name -czf ../livecd.ubuntu-wsl.${app_id}.rootfs.tar.gz *
cd ..
}
# release-upgrader configuration, 3 cases:
# Ubuntu-Version: never
# ubuntu (latest LTS): lts
# preview (current dev): normal
# We produce the following tar with this policy:
# Any XY.04, where Y is pair: upgrade-never
# Any XY.04, where Y is pair and current year is between XY-1 to XY+2 (included): upgrade-lts
# Any releases, where XY.04, where current date is comprised within 6 months.
version=$(chroot chroot lsb_release --release --short)
if [ $(is_lts "${version}") = "true" ]; then
create_archive_with_upgrade_policy "never" "ubuntu${version}lts"
fi
if [ $(is_current_lts_release "${version}" $(date +"%y")) = "true" ]; then
create_archive_with_upgrade_policy "lts" "ubuntu"
fi
if [ $(is_development_release "${version}" $(date +"%y") $(date +"%m")) = "true" ]; then
create_archive_with_upgrade_policy "normal" "ubuntupreview"
fi
# Create the rootfs as a .wsl extension
cd chroot
tar --xattrs --sort=name -czf ../livecd.$PROJECT${SUBARCH:+-$SUBARCH}.wsl *
cd ..
# Remove initial ext4-formatted fs
rm -f binary/boot/filesystem.ext4
Didier Roche