From: Daniel Latypov dlatypov@google.com
[ Upstream commit e30f65c4b3d671115bf2a9d9ef142285387f2aff ]
Writing `subprocess.Popen[str]` requires python 3.9+. kunit.py has an assertion that the python version is 3.7+, so we should try to stay backwards compatible.
This conflicts a bit with commit 1da2e6220e11 ("kunit: tool: fix pre-existing `mypy --strict` errors and update run_checks.py"), since mypy complains like so
kunit_kernel.py:95: error: Missing type parameters for generic type "Popen" [type-arg]
Note: `mypy --strict --python-version 3.7` does not work.
We could annotate each file with comments like `# mypy: disable-error-code="type-arg" but then we might still get nudged to break back-compat in other files.
This patch adds a `mypy.ini` file since it seems like the only way to disable specific error codes for all our files.
Note: run_checks.py doesn't need to specify `--config_file mypy.ini`, but I think being explicit is better, particularly since most kernel devs won't be familiar with how mypy works.
Fixes: 695e26030858 ("kunit: tool: add subscripts for type annotations where appropriate") Reported-by: SeongJae Park sj@kernel.org Link: https://lore.kernel.org/linux-kselftest/20230501171520.138753-1-sj@kernel.or... Signed-off-by: Daniel Latypov dlatypov@google.com Tested-by: SeongJae Park sj@kernel.org Reviewed-by: David Gow davidgow@google.com Signed-off-by: Shuah Khan skhan@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/kunit/kunit_kernel.py | 6 +++--- tools/testing/kunit/mypy.ini | 6 ++++++ tools/testing/kunit/run_checks.py | 2 +- 3 files changed, 10 insertions(+), 4 deletions(-) create mode 100644 tools/testing/kunit/mypy.ini
diff --git a/tools/testing/kunit/kunit_kernel.py b/tools/testing/kunit/kunit_kernel.py index f01f941061296..7f648802caf6a 100644 --- a/tools/testing/kunit/kunit_kernel.py +++ b/tools/testing/kunit/kunit_kernel.py @@ -92,7 +92,7 @@ class LinuxSourceTreeOperations: if stderr: # likely only due to build warnings print(stderr.decode())
- def start(self, params: List[str], build_dir: str) -> subprocess.Popen[str]: + def start(self, params: List[str], build_dir: str) -> subprocess.Popen: raise RuntimeError('not implemented!')
@@ -113,7 +113,7 @@ class LinuxSourceTreeOperationsQemu(LinuxSourceTreeOperations): kconfig.merge_in_entries(base_kunitconfig) return kconfig
- def start(self, params: List[str], build_dir: str) -> subprocess.Popen[str]: + def start(self, params: List[str], build_dir: str) -> subprocess.Popen: kernel_path = os.path.join(build_dir, self._kernel_path) qemu_command = ['qemu-system-' + self._qemu_arch, '-nodefaults', @@ -142,7 +142,7 @@ class LinuxSourceTreeOperationsUml(LinuxSourceTreeOperations): kconfig.merge_in_entries(base_kunitconfig) return kconfig
- def start(self, params: List[str], build_dir: str) -> subprocess.Popen[str]: + def start(self, params: List[str], build_dir: str) -> subprocess.Popen: """Runs the Linux UML binary. Must be named 'linux'.""" linux_bin = os.path.join(build_dir, 'linux') params.extend(['mem=1G', 'console=tty', 'kunit_shutdown=halt']) diff --git a/tools/testing/kunit/mypy.ini b/tools/testing/kunit/mypy.ini new file mode 100644 index 0000000000000..ddd288309efaa --- /dev/null +++ b/tools/testing/kunit/mypy.ini @@ -0,0 +1,6 @@ +[mypy] +strict = True + +# E.g. we can't write subprocess.Popen[str] until Python 3.9+. +# But kunit.py tries to support Python 3.7+, so let's disable it. +disable_error_code = type-arg diff --git a/tools/testing/kunit/run_checks.py b/tools/testing/kunit/run_checks.py index 8208c3b3135ef..c6d494ea33739 100755 --- a/tools/testing/kunit/run_checks.py +++ b/tools/testing/kunit/run_checks.py @@ -23,7 +23,7 @@ commands: Dict[str, Sequence[str]] = { 'kunit_tool_test.py': ['./kunit_tool_test.py'], 'kunit smoke test': ['./kunit.py', 'run', '--kunitconfig=lib/kunit', '--build_dir=kunit_run_checks'], 'pytype': ['/bin/sh', '-c', 'pytype *.py'], - 'mypy': ['mypy', '--strict', '--exclude', '_test.py$', '--exclude', 'qemu_configs/', '.'], + 'mypy': ['mypy', '--config-file', 'mypy.ini', '--exclude', '_test.py$', '--exclude', 'qemu_configs/', '.'], }
# The user might not have mypy or pytype installed, skip them if so.