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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/testing/kunit/kunit_config.py | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/kunit/kunit_config.py')
-rw-r--r-- | tools/testing/kunit/kunit_config.py | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/tools/testing/kunit/kunit_config.py b/tools/testing/kunit/kunit_config.py new file mode 100644 index 000000000..b30e9d6db --- /dev/null +++ b/tools/testing/kunit/kunit_config.py @@ -0,0 +1,89 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Builds a .config from a kunitconfig. +# +# Copyright (C) 2019, Google LLC. +# Author: Felix Guo <felixguoxiuping@gmail.com> +# Author: Brendan Higgins <brendanhiggins@google.com> + +import collections +import re + +CONFIG_IS_NOT_SET_PATTERN = r'^# CONFIG_(\w+) is not set$' +CONFIG_PATTERN = r'^CONFIG_(\w+)=(\S+|".*")$' + +KconfigEntryBase = collections.namedtuple('KconfigEntryBase', ['name', 'value']) + +class KconfigEntry(KconfigEntryBase): + + def __str__(self) -> str: + if self.value == 'n': + return r'# CONFIG_%s is not set' % (self.name) + else: + return r'CONFIG_%s=%s' % (self.name, self.value) + + +class KconfigParseError(Exception): + """Error parsing Kconfig defconfig or .config.""" + + +class Kconfig(object): + """Represents defconfig or .config specified using the Kconfig language.""" + + def __init__(self): + self._entries = [] + + def entries(self): + return set(self._entries) + + def add_entry(self, entry: KconfigEntry) -> None: + self._entries.append(entry) + + def is_subset_of(self, other: 'Kconfig') -> bool: + for a in self.entries(): + found = False + for b in other.entries(): + if a.name != b.name: + continue + if a.value != b.value: + return False + found = True + if a.value != 'n' and found == False: + return False + return True + + def write_to_file(self, path: str) -> None: + with open(path, 'w') as f: + for entry in self.entries(): + f.write(str(entry) + '\n') + + def parse_from_string(self, blob: str) -> None: + """Parses a string containing KconfigEntrys and populates this Kconfig.""" + self._entries = [] + is_not_set_matcher = re.compile(CONFIG_IS_NOT_SET_PATTERN) + config_matcher = re.compile(CONFIG_PATTERN) + for line in blob.split('\n'): + line = line.strip() + if not line: + continue + + match = config_matcher.match(line) + if match: + entry = KconfigEntry(match.group(1), match.group(2)) + self.add_entry(entry) + continue + + empty_match = is_not_set_matcher.match(line) + if empty_match: + entry = KconfigEntry(empty_match.group(1), 'n') + self.add_entry(entry) + continue + + if line[0] == '#': + continue + else: + raise KconfigParseError('Failed to parse: ' + line) + + def read_from_file(self, path: str) -> None: + with open(path, 'r') as f: + self.parse_from_string(f.read()) |