Re: [PATCH v2] libubootenv: generate reproducible source tarball

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

On Mon, 2026-01-12 at 16:50 +0530, srinuvasan.a via isar-users wrote:
> From: srinuvasan <srinuvasan.a@siemens.com>
> 
> Apply additional options to the tar command used to generate
> reproducible source tarball: (1) use numeric and null [GU]IDs,
> -clamp-mtime for file modification times to never be later than
> SOURCE_DATE_EPOCH (preserving mtimes for files not modified by
> the recipe) and --sort=name for consistent ordering within the
> archive.
> 
> Signed-off-by: Cedric Hombourger <cedric.hombourger@siemens.com>
> Signed-off-by: srinuvasan <srinuvasan.a@siemens.com>
> ---
>  meta/classes-recipe/dpkg-source.bbclass               | 5 +++++
>  meta/recipes-bsp/libubootenv/libubootenv_0.3.5-0.1.bb | 2 +-
>  2 files changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/meta/classes-recipe/dpkg-source.bbclass b/meta/classes-recipe/dpkg-source.bbclass
> index a16e5812..95042edc 100644
> --- a/meta/classes-recipe/dpkg-source.bbclass
> +++ b/meta/classes-recipe/dpkg-source.bbclass
> @@ -5,6 +5,11 @@
>  
>  inherit dpkg-base
>  
> +TAR_REPRO_OPTS = "--exclude=.git --exclude=debian \

Can we use a weak assignment here? Apart from that, it is exactly as I
envisioned it. Thanks!

PS: please send subsequent versions as new mails, instead of replies to
an existing series.

Felix

> +--mtime=@${SOURCE_DATE_EPOCH} --clamp-mtime \
> +--owner=0 --group=0 --numeric-owner \
> +--sort=name"
> +
>  DPKG_SOURCE_EXTRA_ARGS ?= "-I"
>  
>  DEBIAN_SOURCE ?= "${BPN}"
> diff --git a/meta/recipes-bsp/libubootenv/libubootenv_0.3.5-0.1.bb b/meta/recipes-bsp/libubootenv/libubootenv_0.3.5-0.1.bb
> index 4d64ff8e..d2908536 100644
> --- a/meta/recipes-bsp/libubootenv/libubootenv_0.3.5-0.1.bb
> +++ b/meta/recipes-bsp/libubootenv/libubootenv_0.3.5-0.1.bb
> @@ -25,5 +25,5 @@ CHANGELOG_V ?= "${PV}+isar-${SRCREV}"
>  do_prepare_build() {
>      deb_add_changelog
>      cd ${WORKDIR}
> -    tar cJf ${BPN}_${PV}+isar.orig.tar.xz --exclude=.git --exclude=debian ${P}
> +    tar cJf ${BPN}_${PV}+isar.orig.tar.xz ${TAR_REPRO_OPTS} ${P}
>  }
> -- 
> 2.39.5
> 
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