Re: [PATCH 1/2] sbuild: place tmpdir below WORKDIR on rootless

[Zhihang Wei <wzh@ilbers.de>]

Applied to next, thanks.

Zhihang

On 9/7/26 13:41, 'Felix Moessbauer' via isar-users wrote:
> When running sbuild in rootless mode, it needs some scratch space to
> extract the rootfs. If not configured otherwise, a tmpdir below /tmp is
> used. In case of isar builds this is not desired, as /tmp could be too
> small (e.g. on a tmpfs) and it also breaks the rule of only operating
> below bitbakes TMPDIR.
>
> We fix this by explicitly setting the TMPDIR env var to a dir below the
> recipes WORKDIR. By that, each sbuild chroot is extracted to a tmpdir
> below the recipe that needs it (it is automatically cleanded up by
> sbuild after the build).
>
> Signed-off-by: Felix Moessbauer <felix.moessbauer@siemens.com>
> ---
>   meta/classes-recipe/dpkg.bbclass | 4 ++++
>   1 file changed, 4 insertions(+)
>
> diff --git a/meta/classes-recipe/dpkg.bbclass b/meta/classes-recipe/dpkg.bbclass
> index a42703d5..35408495 100644
> --- a/meta/classes-recipe/dpkg.bbclass
> +++ b/meta/classes-recipe/dpkg.bbclass
> @@ -21,6 +21,8 @@ SBUILD_PASSTHROUGH_ADDITIONS ?= ""
>   # can be set to "1" in the recipe.
>   DPKG_BUILD_ENABLE_NETWORK ??= "0"
>   
> +SBUILD_TMPDIR ?= "${WORKDIR}/tmpdir"
> +
>   def expand_sbuild_pt_additions(d):
>       cmds = ''
>       for var in d.getVar('SBUILD_PASSTHROUGH_ADDITIONS').split():
> @@ -41,6 +43,7 @@ CP_FLAGS:sid ?= "-L --update=none --no-preserve=owner"
>   
>   # Build package from sources using build script
>   dpkg_runbuild[root_cleandirs] += "${WORKDIR}/rootfs"
> +dpkg_runbuild[cleandirs] += "${SBUILD_TMPDIR}"
>   dpkg_runbuild[vardepsexclude] += "${SBUILD_PASSTHROUGH_ADDITIONS}"
>   dpkg_runbuild() {
>       E="${@ isar_export_proxies(d)}"
> @@ -126,6 +129,7 @@ dpkg_runbuild() {
>           sbuild_network_option="--enable-network"
>       fi
>   
> +    TMPDIR=${SBUILD_TMPDIR} \
>       sbuild -n -c ${SBUILD_CHROOT} \
>           --chroot-mode=${ISAR_CHROOT_MODE} \
>           --host=${PACKAGE_ARCH} --build=${BUILD_ARCH} ${profiles} \

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