Re: [Qemu-devel] [PATCH for 2.10 v3 4/6] docker: docker.py make --no-cache skip checksum test

[Fam Zheng <famz@redhat.com>]

On Mon, 08/07 16:39, Alex Bennée wrote:
> If you invoke with NOCACHE=1 we pass --no-cache in the argv to
> docker.py but may still not force a rebuild if the dockerfile checksum
> hasn't changed. By testing for its presence we can force builds
> without having to manually remove the docker image.
> 
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> ---
>  tests/docker/docker.py | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/tests/docker/docker.py b/tests/docker/docker.py
> index ee40ca04d9..aab1648cc5 100755
> --- a/tests/docker/docker.py
> +++ b/tests/docker/docker.py
> @@ -261,7 +261,8 @@ class BuildCommand(SubCommand):
>          tag = args.tag
>  
>          dkr = Docker()
> -        if dkr.image_matches_dockerfile(tag, dockerfile):
> +        if "--no-cache" not in argv and \
> +           dkr.image_matches_dockerfile(tag, dockerfile):
>              if not args.quiet:
>                  print "Image is up to date."
>          else:
> -- 
> 2.13.0
> 
> 

NACK.

Please add "--no-cache" to BuildCommand.args, and use args.no_cache.

diff --git a/tests/docker/docker.py b/tests/docker/docker.py
index ee40ca04d9..530bc62d40 100755
--- a/tests/docker/docker.py
+++ b/tests/docker/docker.py
@@ -251,6 +251,8 @@ class BuildCommand(SubCommand):
         parser.add_argument("--add-current-user", "-u", dest="user",
                             action="store_true",
                             help="Add the current user to image's passwd")
+        parser.add_argument("--no-cache", action="store_true",
+                            help="Disable docker cache and checksum")
         parser.add_argument("tag",
                             help="Image Tag")
         parser.add_argument("dockerfile",