Re: [PATCH 1/1] sstate: compress rootfs sstate files

[Henning Schild <henning.schild@siemens.com>]

This is wrong. Everything you put into sstate is already compressed
there.

So what you probably want is to "move" stuff into sstate and delete
setscene after unpack so temporary tarballs maybe do not hang around.

That will save much more space and time, but i am not sure it would be
"allowed". That is why i added Adriaan on cc.

Henning

Am Wed, 23 Feb 2022 10:17:49 +0100
schrieb Uladzimir Bely <ubely@ilbers.de>:

> This saves about 1-2 GiB per multiconfig, at the expense of
> approximately 20-40 seconds for packing the files.
> 
> Signed-off-by: Uladzimir Bely <ubely@ilbers.de>
> ---
>  meta/classes/rootfs.bbclass                         | 4 ++--
>  meta/recipes-core/isar-bootstrap/isar-bootstrap.inc | 4 ++--
>  2 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/meta/classes/rootfs.bbclass b/meta/classes/rootfs.bbclass
> index 2bdb3b6d..15e87bec 100644
> --- a/meta/classes/rootfs.bbclass
> +++ b/meta/classes/rootfs.bbclass
> @@ -298,13 +298,13 @@ do_rootfs_install[sstate-interceptfuncs] =
> "rootfs_install_sstate_prepare" # the buildchroot is owned by root,
> so we need some sudoing to pack and unpack
> rootfs_install_sstate_prepare() { sudo mount --bind ${WORKDIR}/rootfs
> ${WORKDIR}/mnt/rootfs -o ro
> -    sudo tar -C ${WORKDIR}/mnt -cpf ${ROOTFS_SSTATE}/rootfs.tar
> --one-file-system rootfs
> +    sudo tar -C ${WORKDIR}/mnt -cpzf ${ROOTFS_SSTATE}/rootfs.tar.gz
> --one-file-system rootfs sudo umount ${WORKDIR}/mnt/rootfs
>  }
>  do_rootfs_install_sstate_prepare[lockfiles] =
> "${REPO_ISAR_DIR}/isar.lock" 
>  rootfs_install_sstate_finalize() {
> -    sudo tar -C ${WORKDIR} -xpf ${ROOTFS_SSTATE}/rootfs.tar
> +    sudo tar -C ${WORKDIR} -xpzf ${ROOTFS_SSTATE}/rootfs.tar.gz
>  }
>  
>  python do_rootfs_install_setscene() {
> diff --git a/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc
> b/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc index
> 2f483f5a..99d1d945 100644 ---
> a/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc +++
> b/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc @@ -402,11
> +402,11 @@ do_bootstrap[sstate-plaindirs] = "${BOOTSTRAP_SSTATE}"
> do_bootstrap[sstate-interceptfuncs] = "bootstrap_sstate_prepare" 
>  bootstrap_sstate_prepare() {
> -    sudo tar -C $(dirname "${ROOTFSDIR}") -cpf
> ${BOOTSTRAP_SSTATE}/bootstrap.tar --one-file-system $(basename
> "${ROOTFSDIR}")
> +    sudo tar -C $(dirname "${ROOTFSDIR}") -cpzf
> ${BOOTSTRAP_SSTATE}/bootstrap.tar.gz --one-file-system $(basename
> "${ROOTFSDIR}") } 
>  bootstrap_sstate_finalize() {
> -    sudo tar -C $(dirname "${ROOTFSDIR}") -xpf
> ${BOOTSTRAP_SSTATE}/bootstrap.tar
> +    sudo tar -C $(dirname "${ROOTFSDIR}") -xpzf
> ${BOOTSTRAP_SSTATE}/bootstrap.tar.gz sudo ln -Tfsr "${ROOTFSDIR}"
> "${DEPLOY_ISAR_BOOTSTRAP}" }
>