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, <<
12 11
13 CONFIG_IS_NOT_SET_PATTERN = r'^# CONFIG_(\w+) !! 12 CONFIG_IS_NOT_SET_PATTERN = r'^# CONFIG_\w+ is not set$'
14 CONFIG_PATTERN = r'^CONFIG_(\w+)=(\S+|".*")$' !! 13 CONFIG_PATTERN = r'^CONFIG_\w+=\S+$'
15 14
16 @dataclass(frozen=True) !! 15 KconfigEntryBase = collections.namedtuple('KconfigEntry', ['raw_entry'])
17 class KconfigEntry: !! 16
18 name: str !! 17
19 value: str !! 18 class KconfigEntry(KconfigEntryBase):
20 19
21 def __str__(self) -> str: 20 def __str__(self) -> str:
22 if self.value == 'n': !! 21 return self.raw_entry
23 return f'# CONFIG_{sel <<
24 return f'CONFIG_{self.name}={s <<
25 22
26 23
27 class KconfigParseError(Exception): 24 class KconfigParseError(Exception):
28 """Error parsing Kconfig defconfig or 25 """Error parsing Kconfig defconfig or .config."""
29 26
30 27
31 class Kconfig: !! 28 class Kconfig(object):
32 """Represents defconfig or .config spe 29 """Represents defconfig or .config specified using the Kconfig language."""
33 30
34 def __init__(self) -> None: !! 31 def __init__(self):
35 self._entries = {} # type: Di !! 32 self._entries = []
36 33
37 def __eq__(self, other: Any) -> bool: !! 34 def entries(self):
38 if not isinstance(other, self. !! 35 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 36
49 def add_entry(self, name: str, value: !! 37 def add_entry(self, entry: KconfigEntry) -> None:
50 self._entries[name] = value !! 38 self._entries.append(entry)
51 39
52 def is_subset_of(self, other: 'Kconfig 40 def is_subset_of(self, other: 'Kconfig') -> bool:
53 for name, value in self._entri !! 41 return self.entries().issubset(other.entries())
54 b = other._entries.get <<
55 if b is None: <<
56 if value == 'n <<
57 contin <<
58 return False <<
59 if value != b: <<
60 return False <<
61 return True <<
62 <<
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 42
76 def write_to_file(self, path: str) -> 43 def write_to_file(self, path: str) -> None:
77 with open(path, 'a+') as f: !! 44 with open(path, 'w') as f:
78 for e in self.as_entri !! 45 for entry in self.entries():
79 f.write(str(e) !! 46 f.write(str(entry) + '\n')
80 !! 47
81 def parse_file(path: str) -> Kconfig: !! 48 def parse_from_string(self, blob: str) -> None:
82 with open(path, 'r') as f: !! 49 """Parses a string containing KconfigEntrys and populates this Kconfig."""
83 return parse_from_string(f.rea !! 50 self._entries = []
84 !! 51 is_not_set_matcher = re.compile(CONFIG_IS_NOT_SET_PATTERN)
85 def parse_from_string(blob: str) -> Kconfig: !! 52 config_matcher = re.compile(CONFIG_PATTERN)
86 """Parses a string containing Kconfig !! 53 for line in blob.split('\n'):
87 kconfig = Kconfig() !! 54 line = line.strip()
88 is_not_set_matcher = re.compile(CONFIG !! 55 if not line:
89 config_matcher = re.compile(CONFIG_PAT !! 56 continue
90 for line in blob.split('\n'): !! 57 elif config_matcher.match(line) or is_not_set_matcher.match(line):
91 line = line.strip() !! 58 self._entries.append(KconfigEntry(line))
92 if not line: !! 59 elif line[0] == '#':
93 continue !! 60 continue
94 !! 61 else:
95 match = config_matcher.match(l !! 62 raise KconfigParseError('Failed to parse: ' + line)
96 if match: !! 63
97 kconfig.add_entry(matc !! 64 def read_from_file(self, path: str) -> None:
98 continue !! 65 with open(path, 'r') as f:
99 !! 66 self.parse_from_string(f.read())
100 empty_match = is_not_set_match <<
101 if empty_match: <<
102 kconfig.add_entry(empt <<
103 continue <<
104 <<
105 if line[0] == '#': <<
106 continue <<
107 raise KconfigParseError('Faile <<
108 return kconfig <<
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