linux-kernel - [PATCH v1] kunit: tool: handle when .kunit exists but .kunitconfig does not

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Date:   Mon, 28 Sep 2020 13:02:27 -0700
From:   Brendan Higgins <brendanhiggins@...gle.com>
To:     shuah@...nel.org, davidgow@...gle.com
Cc:     linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com,
        linux-kernel@...r.kernel.org,
        Brendan Higgins <brendanhiggins@...gle.com>
Subject: [PATCH v1] kunit: tool: handle when .kunit exists but .kunitconfig
 does not

Right now .kunitconfig and the build dir are automatically created if
the build dir does not exists; however, if the build dir is present and
.kunitconfig is not, kunit_tool will crash.

Fix this by checking for both the build dir as well as the .kunitconfig.

NOTE: This depends on commit 5578d008d9e0 ("kunit: tool: fix running
kunit_tool from outside kernel tree")

Link: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git/commit/?id=5578d008d9e06bb531fb3e62dd17096d9fd9c853
Signed-off-by: Brendan Higgins <brendanhiggins@...gle.com>
---
 tools/testing/kunit/kunit.py | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py
index e2caf4e24ecb2..8ab17e21a3578 100755
--- a/tools/testing/kunit/kunit.py
+++ b/tools/testing/kunit/kunit.py
@@ -243,6 +243,8 @@ def main(argv, linux=None):
 	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 linux:
@@ -258,10 +260,12 @@ def main(argv, linux=None):
 		if result.status != KunitStatus.SUCCESS:
 			sys.exit(1)
 	elif cli_args.subcommand == 'config':
-		if cli_args.build_dir:
-			if not os.path.exists(cli_args.build_dir):
-				os.mkdir(cli_args.build_dir)
-				create_default_kunitconfig()
+		if cli_args.build_dir and (
+				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 linux:
 			linux = kunit_kernel.LinuxSourceTree()

base-commit: d96fe1a5485fa978a6e3690adc4dbe4d20b5baa4
-- 
2.28.0.681.g6f77f65b4e-goog