Re: [PATCH] sbuild: Declare using random build path

["'MOESSBAUER, Felix' via isar-users" <isar-users@googlegroups.com>]

On Tue, 2025-03-18 at 22:20 +0100, 'Jan Kiszka' via isar-users wrote:
> On 18.03.25 16:50, Anton Mikanovich wrote:
> > After 0.87.1 version of sbuild BUILD_PATH value is no more random
> > by
> > default. It is better for reproducibility but breaks concurrent
> > builds
> > because this path got removed during cleanup stage.
> 
> Can you elaborate?
> 
> > To keep sbuild choose a random build location (just like it is in
> > older
> > package versions) set the empty string to build-path option.
> 
> Err, no. We clearly need reproducibility as well.

According to the "reproducible" definition of Debian, this change
should not matter, as long as we apply the -fdebug-prefix-map switch on
compilation (which we do).

If this change really does not break reproducibility needs to be
verified, though.

Felix

> 
> Jan
> 
> > 
> > More details can be found in sbuild commit:
> > 14cc3a41f7eed7d9bd62e3c443d077b0f345cb24
> > 
> > This fixes Isar building on Trixie hosts.
> > 
> > Signed-off-by: Anton Mikanovich <amikan@ilbers.de>
> > ---
> >  meta/classes/dpkg.bbclass | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/meta/classes/dpkg.bbclass b/meta/classes/dpkg.bbclass
> > index 64404103..0e5a495d 100644
> > --- a/meta/classes/dpkg.bbclass
> > +++ b/meta/classes/dpkg.bbclass
> > @@ -124,7 +124,7 @@ dpkg_runbuild() {
> >          --finished-build-commands="rm -f ${deb_dir}/sbuild-build-
> > depends-main-dummy_*.deb" \
> >          --finished-build-commands="find ${deb_dir} -maxdepth 1 -
> > type f -name '*.deb' -print -exec cp ${CP_FLAGS} -t ${ext_deb_dir}/
> > {} +" \
> >          --finished-build-commands="cp /var/log/dpkg.log
> > ${ext_root}/dpkg_partial.log" \
> > -        --build-dir=${WORKDIR} --dist="${DEBDISTRONAME}"
> > ${DSC_FILE}
> > +        --build-path="" --build-dir=${WORKDIR} --
> > dist="${DEBDISTRONAME}" ${DSC_FILE}
> >  
> >      sbuild_dpkg_log_export "${WORKDIR}/rootfs/dpkg_partial.log"
> >      deb_dl_dir_export "${WORKDIR}/rootfs" "${distro}"
> 
> -- 
> Siemens AG, Foundational Technologies
> Linux Expert Center

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