Re: [Qemu-devel] [PATCH] archive-source: also create a stash for submodules

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 7/8/19 10:02 PM, Marc-André Lureau wrote:
> "git archive" fails when a submodule has a modification, because "git
> stash create" doesn't handle submodules. Let's teach our
> archive-source.sh to handle modifications in submodules the same way
> as qemu tree, by creating a stash.
> 
> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
> ---
>  scripts/archive-source.sh | 18 ++++++++++--------
>  1 file changed, 10 insertions(+), 8 deletions(-)
> 
> diff --git a/scripts/archive-source.sh b/scripts/archive-source.sh
> index ca94e49978..fb5d6b3918 100755
> --- a/scripts/archive-source.sh
> +++ b/scripts/archive-source.sh
> @@ -39,14 +39,16 @@ function cleanup() {
>  }
>  trap "cleanup" 0 1 2 3 15
>  
> -if git diff-index --quiet HEAD -- &>/dev/null
> -then
> -    HEAD=HEAD
> -else
> -    HEAD=$(git stash create)
> -fi
> +function tree_ish() {
> +    local retval='HEAD'
> +    if ! git diff-index --quiet --ignore-submodules=all HEAD -- &>/dev/null
> +    then
> +        retval=$(git stash create)
> +    fi
> +    echo "$retval"
> +}
>  
> -git archive --format tar $HEAD > "$tar_file"
> +git archive --format tar "$(tree_ish)" > "$tar_file"
>  test $? -ne 0 && error "failed to archive qemu"
>  for sm in $submodules; do
>      status="$(git submodule status "$sm")"
> @@ -62,7 +64,7 @@ for sm in $submodules; do
>              echo "WARNING: submodule $sm is out of sync"
>              ;;
>      esac
> -    (cd $sm; git archive --format tar --prefix "$sm/" $smhash) > "$sub_file"
> +    (cd $sm; git archive --format tar --prefix "$sm/" $(tree_ish)) > "$sub_file"
>      test $? -ne 0 && error "failed to archive submodule $sm ($smhash)"
>      tar --concatenate --file "$tar_file" "$sub_file"
>      test $? -ne 0 && error "failed append submodule $sm to $tar_file"
> 

Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>