linux-kernel - Re: [PATCH] kunit: run kunit

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Date:   Mon, 10 Feb 2020 16:31:45 -0800
From:   Brendan Higgins <brendanhiggins@...gle.com>
To:     Heidi Fahim <heidifahim@...gle.com>,
        David Gow <davidgow@...gle.com>,
        Daniel Latypov <dlatypov@...gle.com>
Cc:     "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        KUnit Development <kunit-dev@...glegroups.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kunit: run kunit_tool from any directory

On Mon, Feb 10, 2020 at 4:26 PM Heidi Fahim <heidifahim@...gle.com> wrote:
>
> Implemented small fix so that the script changes work directories to the
> linux directory where kunit.py is run. This enables the user to run
> kunit from any working directory. Originally considered using
> os.path.join but this is more error prone as we would have to find all
> file path usages and modify them accordingly. Using os.chdir ensures
> that the entire script is run within /linux.
>
> Signed-off-by: Heidi Fahim <heidifahim@...gle.com>

Reviewed-by: Brendan Higgins <brendanhiggins@...gle.com>

Thanks!

> ---
>  tools/testing/kunit/kunit.py | 10 ++++++++++
>  1 file changed, 10 insertions(+)
>
> diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py
> index e59eb9e7f923..3cc7be7b28a0 100755
> --- a/tools/testing/kunit/kunit.py
> +++ b/tools/testing/kunit/kunit.py
> @@ -35,6 +35,13 @@ def create_default_kunitconfig():
>                 shutil.copyfile('arch/um/configs/kunit_defconfig',
>                                 kunit_kernel.kunitconfig_path)
>
> +def get_kernel_root_path():
> +       parts = sys.argv[0] if not __file__ else __file__
> +       parts = os.path.realpath(parts).split('tools/testing/kunit')
> +       if len(parts) != 2:
> +               sys.exit(1)
> +       return parts[0]
> +
>  def run_tests(linux: kunit_kernel.LinuxSourceTree,
>               request: KunitRequest) -> KunitResult:
>         config_start = time.time()
> @@ -114,6 +121,9 @@ def main(argv, linux=None):
>         cli_args = parser.parse_args(argv)
>
>         if cli_args.subcommand == 'run':
> +               if get_kernel_root_path():
> +                       os.chdir(get_kernel_root_path())
> +
>                 if cli_args.build_dir:
>                         if not os.path.exists(cli_args.build_dir):
>                                 os.mkdir(cli_args.build_dir)
> --
> 2.25.0.341.g760bfbb309-goog
>