Re: [PATCH v1 11/13] tests/docker: fall back more gracefully when pull fails

["Philippe Mathieu-Daudé" <f4bug@amsat.org>]

On 7/9/20 4:13 PM, Alex Bennée wrote:
> I only spotted this in the small window between my testing with my
> registry while waiting for the gitlab PR to go in. As we pre-pull the
> registry image we know if that fails there isn't any point attempting
> to use the cache. Fall back to the way we used to do it at that point.
> 
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> ---
>  tests/docker/docker.py | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)
> 
> diff --git a/tests/docker/docker.py b/tests/docker/docker.py
> index 9684f07bdebe..2d67bbd15a5b 100755
> --- a/tests/docker/docker.py
> +++ b/tests/docker/docker.py
> @@ -306,13 +306,14 @@ class Docker(object):
>          checksum = _text_checksum(_dockerfile_preprocess(dockerfile))
>  
>          if registry is not None:
> -            dockerfile = dockerfile.replace("FROM qemu/",
> -                                            "FROM %s/qemu/" %
> -                                            (registry))
>              # see if we can fetch a cache copy, may fail...
>              pull_args = ["pull", "%s/%s" % (registry, tag)]
> -            self._do(pull_args, quiet=quiet)
> -
> +            if self._do(pull_args, quiet=quiet) == 0:

Maybe worth defining EXIT_SUCCESS = 0. Otherwise:
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

> +                dockerfile = dockerfile.replace("FROM qemu/",
> +                                                "FROM %s/qemu/" %
> +                                                (registry))
> +            else:
> +                registry = None
>  
>          tmp_df = tempfile.NamedTemporaryFile(mode="w+t",
>                                               encoding='utf-8',
>