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

[Henning Schild <henning.schild@siemens.com>]

Am Sat, 23 Feb 2019 11:44:21 +0100
schrieb Jan Kiszka <jan.kiszka@web.de>:

> 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.

Seems pretty risky. If the only motivation is a local package, i would
argue your layer has a bug because it is going "up and down". If it
somehow needs to ... go ahead and do a complete rebuild.
But i guess we are talking about a multiconfig story again ...
I am against this one, we should rather move to the "clean-room" builds

Henning

> 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
>