1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
# Copyright 2019 The Meson development team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import typing
import hashlib
from pathlib import Path, PurePath
from .. import mlog
from . import ExtensionModule
from . import ModuleReturnValue
from ..mesonlib import MesonException
from ..interpreterbase import stringArgs, noKwargs
if typing.TYPE_CHECKING:
from ..interpreter import ModuleState
class FSModule(ExtensionModule):
def __init__(self, interpreter):
super().__init__(interpreter)
self.snippets.add('generate_dub_file')
def _resolve_dir(self, state: 'ModuleState', arg: str) -> Path:
"""
resolves (makes absolute) a directory relative to calling meson.build,
if not already absolute
"""
return Path(state.source_root) / state.subdir / Path(arg).expanduser()
def _check(self, check: str, state: 'ModuleState', args: typing.Sequence[str]) -> ModuleReturnValue:
if len(args) != 1:
MesonException('fs.{} takes exactly one argument.'.format(check))
test_file = self._resolve_dir(state, args[0])
return ModuleReturnValue(getattr(test_file, check)(), [])
@stringArgs
@noKwargs
def exists(self, state: 'ModuleState', args: typing.Sequence[str], kwargs: dict) -> ModuleReturnValue:
return self._check('exists', state, args)
@stringArgs
@noKwargs
def is_symlink(self, state: 'ModuleState', args: typing.Sequence[str], kwargs: dict) -> ModuleReturnValue:
return self._check('is_symlink', state, args)
@stringArgs
@noKwargs
def is_file(self, state: 'ModuleState', args: typing.Sequence[str], kwargs: dict) -> ModuleReturnValue:
return self._check('is_file', state, args)
@stringArgs
@noKwargs
def is_dir(self, state: 'ModuleState', args: typing.Sequence[str], kwargs: dict) -> ModuleReturnValue:
return self._check('is_dir', state, args)
@stringArgs
@noKwargs
def hash(self, state: 'ModuleState', args: typing.Sequence[str], kwargs: dict) -> ModuleReturnValue:
if len(args) != 2:
MesonException('method takes exactly two arguments.')
file = self._resolve_dir(state, args[0])
if not file.is_file():
raise MesonException('{} is not a file and therefore cannot be hashed'.format(file))
try:
h = hashlib.new(args[1])
except ValueError:
raise MesonException('hash algorithm {} is not available'.format(args[1]))
mlog.debug('computing {} sum of {} size {} bytes'.format(args[1], file, file.stat().st_size))
h.update(file.read_bytes())
return ModuleReturnValue(h.hexdigest(), [])
@stringArgs
@noKwargs
def size(self, state: 'ModuleState', args: typing.Sequence[str], kwargs: dict) -> ModuleReturnValue:
if len(args) != 1:
MesonException('method takes exactly one argument.')
file = self._resolve_dir(state, args[0])
if not file.is_file():
raise MesonException('{} is not a file and therefore cannot be sized'.format(file))
try:
return ModuleReturnValue(file.stat().st_size, [])
except ValueError:
raise MesonException('{} size could not be determined'.format(args[0]))
@stringArgs
@noKwargs
def samefile(self, state: 'ModuleState', args: typing.Sequence[str], kwargs: dict) -> ModuleReturnValue:
if len(args) != 2:
MesonException('method takes exactly two arguments.')
file1 = self._resolve_dir(state, args[0])
file2 = self._resolve_dir(state, args[1])
if not file1.exists():
raise MesonException('{} is not a file, symlink or directory and therefore cannot be compared'.format(file1))
if not file2.exists():
raise MesonException('{} is not a file, symlink or directory and therefore cannot be compared'.format(file2))
try:
return ModuleReturnValue(file1.samefile(file2), [])
except OSError:
raise MesonException('{} could not be compared to {}'.format(file1, file2))
@stringArgs
@noKwargs
def replace_suffix(self, state: 'ModuleState', args: typing.Sequence[str], kwargs: dict) -> ModuleReturnValue:
if len(args) != 2:
MesonException('method takes exactly two arguments.')
original = PurePath(args[0])
new = original.with_suffix(args[1])
return ModuleReturnValue(str(new), [])
def initialize(*args, **kwargs) -> FSModule:
return FSModule(*args, **kwargs)
|
