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