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

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Date:   Tue, 18 Feb 2020 14:08:42 -0600
From:   Frank Rowand <frowand.list@...il.com>
To:     Heidi Fahim <heidifahim@...gle.com>, brendanhiggins@...gle.com,
        linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kunit: run kunit_tool from any directory

On 2/10/20 6:25 PM, Heidi Fahim 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

s/linux directory where/root of the linux kernel source tree from which/

The existing wording implies that the cd is to .../tools/testing/kunit/

-Frank

> 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>
> ---
>  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)
>