linux-kernel - Re: [PATCH v2] kunit: run kunit

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Date:   Wed, 19 Feb 2020 15:18:08 -0700
From:   shuah <shuah@...nel.org>
To:     Heidi Fahim <heidifahim@...gle.com>, brendanhiggins@...gle.com,
        linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com,
        linux-kernel@...r.kernel.org
Cc:     frowand.list@...il.com, shuah <shuah@...nel.org>
Subject: Re: [PATCH v2] kunit: run kunit_tool from any directory

Hi Heidi,

On 2/18/20 3:19 PM, Heidi Fahim wrote:
> Implemented small fix so that the script changes work directories to the
> root of the linux kernel source tree from which 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 for  the patch. In the future please include changes from v1
to v2.

I am assuming this v2 addresses Frank's comments.

> ---
>   tools/testing/kunit/kunit.py | 12 ++++++++++++
>   1 file changed, 12 insertions(+)
> 
> diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py
> index 3f552e847a14..060d960a7029 100755
> --- a/tools/testing/kunit/kunit.py
> +++ b/tools/testing/kunit/kunit.py
> @@ -26,6 +26,8 @@ KunitResult = namedtuple('KunitResult', ['status','result'])
>   KunitRequest = namedtuple('KunitRequest', ['raw_output','timeout', 'jobs',
>   					'build_dir', 'defconfig', 'json'])
>   
> +KernelDirectoryPath = sys.argv[0].split('tools/testing/kunit/')[0]
> +
>   class KunitStatus(Enum):
>   	SUCCESS = auto()
>   	CONFIG_FAILURE = auto()
> @@ -37,6 +39,13 @@ 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()
> @@ -130,6 +139,9 @@ 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)
> 

thanks,
-- Shuah