[PATCH v2 1/2] kunit: tool: Respect '.kunitconfig' in 'build_dir'

From: SeongJae Park
Date: Thu Oct 22 2020 - 03:40:50 EST


From: SeongJae Park <sjpark@xxxxxxxxx>

Commit d43c7fb05765 ("kunit: tool: fix improper treatment of file
location") removed 'kunit_kernel.kunitconfig_path' modification for the
'--build_dir' argument. As a result, running kunit with '--build_dir'
failed with below error message:

Traceback (most recent call last):
File "./tools/testing/kunit/kunit.py", line 325, in <module>
main(sys.argv[1:])
File "./tools/testing/kunit/kunit.py", line 245, in main
linux = kunit_kernel.LinuxSourceTree()
File "/home/sjpark/linux/tools/testing/kunit/kunit_kernel.py", line 109, in __init__
self._kconfig.read_from_file(kunitconfig_path)
File "/home/sjpark/linux/tools/testing/kunit/kunit_config.py", line 88, in read_from_file
with open(path, 'r') as f:
FileNotFoundError: [Errno 2] No such file or directory: '.kunitconfig'

The error removed after commit 82206a0c06cc ("kunit: tool: handle when
.kunit exists but .kunitconfig does not"). However, it was not the
intention of the commit. It hides the error by ignoring the
'.kunitconfig' in the '--build_dir'.

This commit makes the tool to respect '.kunitconfig' in '--build_dir'
again, while respecting the constantness of
'kunit_kernel.kunitconfig_path', as modifying the variable makes the
'kunit_tool_test.py' fails

Fixes: d43c7fb05765 ("kunit: tool: fix improper treatment of file location")
Signed-off-by: SeongJae Park <sjpark@xxxxxxxxx>
---
tools/testing/kunit/kunit.py | 26 ++++++++++++++------------
tools/testing/kunit/kunit_kernel.py | 4 ++--
2 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py
index ebf5f5763dee..8bee2a5fee27 100755
--- a/tools/testing/kunit/kunit.py
+++ b/tools/testing/kunit/kunit.py
@@ -44,10 +44,10 @@ class KunitStatus(Enum):
BUILD_FAILURE = auto()
TEST_FAILURE = auto()

-def create_default_kunitconfig():
- if not os.path.exists(kunit_kernel.kunitconfig_path):
- shutil.copyfile('arch/um/configs/kunit_defconfig',
- kunit_kernel.kunitconfig_path)
+def create_default_kunitconfig(build_dir=''):
+ kunitconfig = os.path.join(build_dir, kunit_kernel.kunitconfig_path)
+ if not os.path.exists(kunitconfig):
+ shutil.copyfile('arch/um/configs/kunit_defconfig', kunitconfig)

def get_kernel_root_path():
parts = sys.argv[0] if not __file__ else __file__
@@ -61,7 +61,7 @@ def config_tests(linux: kunit_kernel.LinuxSourceTree,
kunit_parser.print_with_timestamp('Configuring KUnit Kernel ...')

config_start = time.time()
- create_default_kunitconfig()
+ create_default_kunitconfig(request.build_dir)
success = linux.build_reconfig(request.build_dir, request.make_options)
config_end = time.time()
if not success:
@@ -258,15 +258,17 @@ def main(argv, linux=None):
if get_kernel_root_path():
os.chdir(get_kernel_root_path())

+ kunitconfig_path = os.path.join(cli_args.build_dir,
+ kunit_kernel.kunitconfig_path)
if cli_args.subcommand == 'run':
if not os.path.exists(cli_args.build_dir):
os.mkdir(cli_args.build_dir)

- if not os.path.exists(kunit_kernel.kunitconfig_path):
- create_default_kunitconfig()
+ if not os.path.exists(kunitconfig_path):
+ create_default_kunitconfig(cli_args.build_dir)

if not linux:
- linux = kunit_kernel.LinuxSourceTree()
+ linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir)

request = KunitRequest(cli_args.raw_output,
cli_args.timeout,
@@ -284,10 +286,10 @@ def main(argv, linux=None):
os.mkdir(cli_args.build_dir)

if not os.path.exists(kunit_kernel.kunitconfig_path):
- create_default_kunitconfig()
+ create_default_kunitconfig(cli_args.build_dir)

if not linux:
- linux = kunit_kernel.LinuxSourceTree()
+ linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir)

request = KunitConfigRequest(cli_args.build_dir,
cli_args.make_options)
@@ -299,7 +301,7 @@ def main(argv, linux=None):
sys.exit(1)
elif cli_args.subcommand == 'build':
if not linux:
- linux = kunit_kernel.LinuxSourceTree()
+ linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir)

request = KunitBuildRequest(cli_args.jobs,
cli_args.build_dir,
@@ -313,7 +315,7 @@ def main(argv, linux=None):
sys.exit(1)
elif cli_args.subcommand == 'exec':
if not linux:
- linux = kunit_kernel.LinuxSourceTree()
+ linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir)

exec_request = KunitExecRequest(cli_args.timeout,
cli_args.build_dir,
diff --git a/tools/testing/kunit/kunit_kernel.py b/tools/testing/kunit/kunit_kernel.py
index b557b1e93f98..7dd4268665a8 100644
--- a/tools/testing/kunit/kunit_kernel.py
+++ b/tools/testing/kunit/kunit_kernel.py
@@ -109,9 +109,9 @@ def get_kconfig_path(build_dir):
class LinuxSourceTree(object):
"""Represents a Linux kernel source tree with KUnit tests."""

- def __init__(self):
+ def __init__(self, build_dir):
self._kconfig = kunit_config.Kconfig()
- self._kconfig.read_from_file(kunitconfig_path)
+ self._kconfig.read_from_file(os.path.join(build_dir, kunitconfig_path))
self._ops = LinuxSourceTreeOperations()
signal.signal(signal.SIGINT, self.signal_handler)

--
2.17.1