linux-kernel - [PATCH v1] kunit: relax regex for .config entries to allow spaces

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Message-Id: <20200409222850.238805-1-brendanhiggins@google.com>
Date:   Thu,  9 Apr 2020 15:28:50 -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, Daniel Latypov <dlatypov@...gle.com>,
        Brendan Higgins <brendanhiggins@...gle.com>
Subject: [PATCH v1] kunit: relax regex for .config entries to allow spaces

From: Daniel Latypov <dlatypov@...gle.com>

kunit parses .config in the `build_reconfig()` of `run_tests()`.
Problematically, the current regex '^CONFIG_\w+=\S+$' does not allow for
spaces anywhere after the "=", even the option is a string.

So kunit will refuse to run if the existing .config has something like
  CONFIG_CMDLINE="something and_something_else"
even if kunit.py will drop this entry when it regenerates the .config!

So relax the regex to allow entries that match `CONFIG_\w+=".*"` as a
minimal change. The question remains as to whether we should do any
validation of the string after the "=", however.

Signed-off-by: Daniel Latypov <dlatypov@...gle.com>
Signed-off-by: Brendan Higgins <brendanhiggins@...gle.com>
---
 tools/testing/kunit/kunit_config.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/kunit/kunit_config.py b/tools/testing/kunit/kunit_config.py
index e75063d603b5..0733796b0e32 100644
--- a/tools/testing/kunit/kunit_config.py
+++ b/tools/testing/kunit/kunit_config.py
@@ -10,7 +10,7 @@ import collections
 import re

 CONFIG_IS_NOT_SET_PATTERN = r'^# CONFIG_(\w+) is not set$'
-CONFIG_PATTERN = r'^CONFIG_(\w+)=(\S+)$'
+CONFIG_PATTERN = r'^CONFIG_(\w+)=(".*"|\S+)$'

 KconfigEntryBase = collections.namedtuple('KconfigEntry', ['name', 'value'])

base-commit: c0cc271173b2e1c2d8d0ceaef14e4dfa79eefc0d
-- 
2.26.0.110.g2183baf09c-goog