Re: [PATCH v3 4/4] dpkg-base: Update git alternates

[Jan Kiszka <jan.kiszka@siemens.com>]

On 2017-11-26 23:00, Alexander Smirnov wrote:
> Update git alternates to work in buildchroot.
> 
> Signed-off-by: Alexander Smirnov <asmirnov@ilbers.de>
> ---
>  meta/classes/dpkg-base.bbclass | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/meta/classes/dpkg-base.bbclass b/meta/classes/dpkg-base.bbclass
> index 5d7f8b6..6a78a26 100644
> --- a/meta/classes/dpkg-base.bbclass
> +++ b/meta/classes/dpkg-base.bbclass
> @@ -18,12 +18,24 @@ dpkg_runbuild() {
>  
>  # Wrap the function dpkg_runbuild with the bind mount for buildroot
>  do_build() {
> +    if [ -d ${WORKDIR}/git/.git ]; then
> +        OBJ_PATH=$(cat ${WORKDIR}/git/.git/objects/info/alternates)
> +        REPO_PATH=$(dirname $OBJ_PATH)
> +        REPO_NAME=$(basename $REPO_PATH)
> +        echo "/git/$REPO_NAME/objects" > ${WORKDIR}/git/.git/objects/info/alternates
> +    fi
> +
>      mkdir -p ${BUILDROOT}
>      sudo mount --bind ${WORKDIR} ${BUILDROOT}
>      _do_build_cleanup() {
>          ret=$?
>          sudo umount ${BUILDROOT} 2>/dev/null || true
>          sudo rmdir ${BUILDROOT} 2>/dev/null || true
> +
> +        if [ -d ${WORKDIR}/git/.git ]; then
> +            echo $OBJ_PATH > ${WORKDIR}/git/.git/objects/info/alternates
> +        fi
> +
>          (exit $ret) || sudo umount ${BUILDCHROOT_DIR}/git
>          (exit $ret) || bb_exit_handler
>      }
> 

You can probably also amend (>>) the existing alternates with the path
that is active in the chroot so that you can also look at the repo
outside of it.

Jan

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