Re: [PATCH 1/1] Reduce disk usage during build by avoiding copies of apt cache

["Roberto A. Foglietta" <roberto.foglietta@gmail.com>]

On Wed, 4 Jan 2023 at 07:10, Schmidt, Adriaan
<adriaan.schmidt@siemens.com> wrote:

> > @@ -308,7 +307,8 @@ rootfs_install_sstate_prepare() {
> >      # so we use some mount magic to prevent that
> >      mkdir -p ${WORKDIR}/mnt/rootfs
> >      sudo mount --bind ${WORKDIR}/rootfs ${WORKDIR}/mnt/rootfs -o ro
> > -    sudo tar -C ${WORKDIR}/mnt -cpSf rootfs.tar --one-file-system rootfs
> > +    lopts="--one-file-system --exclude-caches --exclude=var/cache/apt/archives"
>
> (several locations):
> With the creation of CACHEDIR.TAG, and --exclude-caches, isn't the --exclude=
> of that same path redundant?

Hi Adriaan,

if you look at this, everything has been achieved using exclude option

 sudo tar --one-file-system --exclude="var/log/*" \
--exclude="var/cache/*" --exclude="var/backups/*" \
--exclude="var/tmp/*" --exclude="var/crash/*" \
--exclude="var/spool/*" --exclude="var/lib/apt/*" \
--exclude-caches --exclude-backups -C ${WORKDIR}/mnt \
-cpSf rootfs.tar rootfs

however exclude backups and caches are still in place because the user
might define further ignoring locations using different ways.

P.S.: I have updated and rebased the cherry picking on my 'next'
branch and it works pretty well despite is just a subset of all the
patches I am experimenting.

Best regards, R-