Re: [PATCH] buildchroot: Allow downgrades when installing packages

[Claudius Heine <claudius.heine.ext@siemens.com>]

Hi Jan,

On 23/02/2019 11.44, Jan Kiszka wrote:
> From: Jan Kiszka <jan.kiszka@siemens.com>
> 
> This can happen when changing the recipe of a self-built package, and
> that already when going from v1.0-rc3 to v1.0.

So the issue is that the buildchroot is reused for each recipe/package 
and if a newer one was once installed, it will not be removed. Right?

Then why not use a copy of the buildchroot for each recipe?

That way missing dependencies would also be found more easily.

regards,
Claudius

> 
> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
> ---
>   meta/classes/image.bbclass                      | 2 +-
>   meta/recipes-devtools/buildchroot/files/deps.sh | 4 +++-
>   2 files changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
> index 3f4b728..574fb46 100644
> --- a/meta/classes/image.bbclass
> +++ b/meta/classes/image.bbclass
> @@ -209,7 +209,7 @@ do_install_imager_deps() {
>               -o Dir::Etc::sourceparts="-" \
>               -o APT::Get::List-Cleanup="0"
>           apt-get -o Debug::pkgProblemResolver=yes --no-install-recommends -y \
> -            --allow-unauthenticated install \
> +            --allow-unauthenticated --allow-downgrades install \
>               ${IMAGER_INSTALL}'
>   }
> 
> diff --git a/meta/recipes-devtools/buildchroot/files/deps.sh b/meta/recipes-devtools/buildchroot/files/deps.sh
> index 2501f05..1963943 100644
> --- a/meta/recipes-devtools/buildchroot/files/deps.sh
> +++ b/meta/recipes-devtools/buildchroot/files/deps.sh
> @@ -10,7 +10,9 @@ source /isar/common.sh
>   # Notes:
>   #   1) everything before the -y switch is unchanged from the defaults
>   #   2) we add -y to go non-interactive
> -install_cmd="apt-get -o Debug::pkgProblemResolver=yes --no-install-recommends -y"
> +#   3) downgrades shall be allowed in case a package recipe was changed
> +install_cmd="apt-get -o Debug::pkgProblemResolver=yes --no-install-recommends \
> +    -y --allow-downgrades"
> 
>   # Make sure that we have latest isar-apt content.
>   # Options meaning:
> --
> 2.16.4
> 

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