Hello Alex,
On Mon Oct 21, 2024 at 12:25 PM CEST, Alexander Kanavin wrote:
> Can this be done from systemd recipe itself? Items in
> rootfs-postprocess list should not be recipe-specific.
>
Sure it could be done in the recipe itself ;) but...
The recipe harcodes already a sane value at configure time thanks to the
meson option -Dtime-epoch and the environment variable $SOURCE_DATE_EPOC
(or the date the creation of the latest git-tag or the modification time
of the NEWS file). systemd sets the date somewhere in 2022 (kirkstone).
I have created a rootfs-postcommand to be able to set a better time **at
image creation** to keep the systemd package untouched (not rebuilt) by
updateing the variable $REPRODUCIBLE_TIMESTAMP_ROOTFS.
That variable is suffixed by _ROOTFS; and I guess that variable **SHOULD
NOT** be used by package recipes.
The rootfs_systemd_timestamp() is based on rootfs_update_timestamp(); it
touches the file and it leaves the file empty.
Also, to decrease the systemd-specific thing, I wonder if this is
acceptable:
rootfs_update_timestamp () {
if [ "${REPRODUCIBLE_TIMESTAMP_ROOTFS}" != "" ]; then
# Convert UTC into %4Y%2m%2d%2H%2M%2S
sformatted=`date -u -d
@${REPRODUCIBLE_TIMESTAMP_ROOTFS} +%4Y%2m%2d%2H%2M%2S`
else
sformatted=`date -u +%4Y%2m%2d%2H%2M%2S`
fi
echo $sformatted > ${IMAGE_ROOTFS}/etc/timestamp
bbnote "rootfs_update_timestamp: set /etc/timestamp to
$sformatted"
+
+ if [ -x /lib/systemd/systemd ]; then
+ if [ "${REPRODUCIBLE_TIMESTAMP_ROOTFS}" != "" ]; then
+ # Convert UTC into %4Y%2m%2d%2H%2M.%2S
+ sformatted=`date -u -d
@${REPRODUCIBLE_TIMESTAMP_ROOTFS} +%4Y%2m%2d%2H%2M.%2S`
+ else
+ sformatted=`date -u +%4Y%2m%2d%2H%2M.%2S`
+ fi
+ touch -m -t "$sformatted"
${IMAGE_ROOTFS}/usr/lib/clock-epoch
+ bbnote "rootfs_systemd_timestamp: set /usr/lib/clock-epoch
mtime to $sformatted"
+ }
}
Or, linking the file instead:
rootfs_update_timestamp () {
if [ "${REPRODUCIBLE_TIMESTAMP_ROOTFS}" != "" ]; then
# Convert UTC into %4Y%2m%2d%2H%2M%2S
sformatted=`date -u -d
@${REPRODUCIBLE_TIMESTAMP_ROOTFS} +%4Y%2m%2d%2H%2M%2S`
else
sformatted=`date -u +%4Y%2m%2d%2H%2M%2S`
fi
echo $sformatted > ${IMAGE_ROOTFS}/etc/timestamp
bbnote "rootfs_update_timestamp: set /etc/timestamp to
$sformatted"
+
+ if [ -x /lib/systemd/systemd ]; then
+ ln -sf /etc/timestamp /usr/lib/clock-epoch
+ }
}
Does it look better for you?
> Alex
>
Regards,
Gaël
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