1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 # 2 #
3 # Builds a .config from a kunitconfig. 3 # Builds a .config from a kunitconfig.
4 # 4 #
5 # Copyright (C) 2019, Google LLC. 5 # Copyright (C) 2019, Google LLC.
6 # Author: Felix Guo <felixguoxiuping@gmail.com> 6 # Author: Felix Guo <felixguoxiuping@gmail.com>
7 # Author: Brendan Higgins <brendanhiggins@googl 7 # Author: Brendan Higgins <brendanhiggins@google.com>
8 8
9 from dataclasses import dataclass !! 9 import collections
10 import re 10 import re
11 from typing import Any, Dict, Iterable, List, !! 11 from typing import List, Set
12 12
13 CONFIG_IS_NOT_SET_PATTERN = r'^# CONFIG_(\w+) 13 CONFIG_IS_NOT_SET_PATTERN = r'^# CONFIG_(\w+) is not set$'
14 CONFIG_PATTERN = r'^CONFIG_(\w+)=(\S+|".*")$' 14 CONFIG_PATTERN = r'^CONFIG_(\w+)=(\S+|".*")$'
15 15
16 @dataclass(frozen=True) !! 16 KconfigEntryBase = collections.namedtuple('KconfigEntryBase', ['name', 'value'])
17 class KconfigEntry: !! 17
18 name: str !! 18 class KconfigEntry(KconfigEntryBase):
19 value: str <<
20 19
21 def __str__(self) -> str: 20 def __str__(self) -> str:
22 if self.value == 'n': 21 if self.value == 'n':
23 return f'# CONFIG_{sel !! 22 return r'# CONFIG_%s is not set' % (self.name)
24 return f'CONFIG_{self.name}={s !! 23 else:
>> 24 return r'CONFIG_%s=%s' % (self.name, self.value)
25 25
26 26
27 class KconfigParseError(Exception): 27 class KconfigParseError(Exception):
28 """Error parsing Kconfig defconfig or 28 """Error parsing Kconfig defconfig or .config."""
29 29
30 30
31 class Kconfig: !! 31 class Kconfig(object):
32 """Represents defconfig or .config spe 32 """Represents defconfig or .config specified using the Kconfig language."""
33 33
34 def __init__(self) -> None: 34 def __init__(self) -> None:
35 self._entries = {} # type: Di !! 35 self._entries = [] # type: List[KconfigEntry]
36 36
37 def __eq__(self, other: Any) -> bool: !! 37 def entries(self) -> Set[KconfigEntry]:
38 if not isinstance(other, self. !! 38 return set(self._entries)
39 return False <<
40 return self._entries == other. <<
41 <<
42 def __repr__(self) -> str: <<
43 return ','.join(str(e) for e i <<
44 <<
45 def as_entries(self) -> Iterable[Kconf <<
46 for name, value in self._entri <<
47 yield KconfigEntry(nam <<
48 39
49 def add_entry(self, name: str, value: !! 40 def add_entry(self, entry: KconfigEntry) -> None:
50 self._entries[name] = value !! 41 self._entries.append(entry)
51 42
52 def is_subset_of(self, other: 'Kconfig 43 def is_subset_of(self, other: 'Kconfig') -> bool:
53 for name, value in self._entri !! 44 for a in self.entries():
54 b = other._entries.get !! 45 found = False
55 if b is None: !! 46 for b in other.entries():
56 if value == 'n !! 47 if a.name != b.name:
57 contin 48 continue
58 return False !! 49 if a.value != b.value:
59 if value != b: !! 50 return False
>> 51 found = True
>> 52 if a.value != 'n' and found == False:
60 return False 53 return False
61 return True 54 return True
62 55
63 def conflicting_options(self, other: ' <<
64 diff = [] # type: List[Tuple[ <<
65 for name, value in self._entri <<
66 b = other._entries.get <<
67 if b and value != b: <<
68 pair = (Kconfi <<
69 diff.append(pa <<
70 return diff <<
71 <<
72 def merge_in_entries(self, other: 'Kco <<
73 for name, value in other._entr <<
74 self._entries[name] = <<
75 <<
76 def write_to_file(self, path: str) -> 56 def write_to_file(self, path: str) -> None:
77 with open(path, 'a+') as f: !! 57 with open(path, 'w') as f:
78 for e in self.as_entri !! 58 for entry in self.entries():
79 f.write(str(e) !! 59 f.write(str(entry) + '\n')
80 !! 60
81 def parse_file(path: str) -> Kconfig: !! 61 def parse_from_string(self, blob: str) -> None:
82 with open(path, 'r') as f: !! 62 """Parses a string containing KconfigEntrys and populates this Kconfig."""
83 return parse_from_string(f.rea !! 63 self._entries = []
84 !! 64 is_not_set_matcher = re.compile(CONFIG_IS_NOT_SET_PATTERN)
85 def parse_from_string(blob: str) -> Kconfig: !! 65 config_matcher = re.compile(CONFIG_PATTERN)
86 """Parses a string containing Kconfig !! 66 for line in blob.split('\n'):
87 kconfig = Kconfig() !! 67 line = line.strip()
88 is_not_set_matcher = re.compile(CONFIG !! 68 if not line:
89 config_matcher = re.compile(CONFIG_PAT !! 69 continue
90 for line in blob.split('\n'): !! 70
91 line = line.strip() !! 71 match = config_matcher.match(line)
92 if not line: !! 72 if match:
93 continue !! 73 entry = KconfigEntry(match.group(1), match.group(2))
94 !! 74 self.add_entry(entry)
95 match = config_matcher.match(l !! 75 continue
96 if match: !! 76
97 kconfig.add_entry(matc !! 77 empty_match = is_not_set_matcher.match(line)
98 continue !! 78 if empty_match:
99 !! 79 entry = KconfigEntry(empty_match.group(1), 'n')
100 empty_match = is_not_set_match !! 80 self.add_entry(entry)
101 if empty_match: !! 81 continue
102 kconfig.add_entry(empt !! 82
103 continue !! 83 if line[0] == '#':
104 !! 84 continue
105 if line[0] == '#': !! 85 else:
106 continue !! 86 raise KconfigParseError('Failed to parse: ' + line)
107 raise KconfigParseError('Faile !! 87
108 return kconfig !! 88 def read_from_file(self, path: str) -> None:
>> 89 with open(path, 'r') as f:
>> 90 self.parse_from_string(f.read())
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