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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
#!/usr/bin/env python3
# Copyright 2018 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.
'''
Regenerate markdown docs by using `meson.py` from the root dir
'''
import argparse
import os
import re
import subprocess
import sys
import textwrap
import json
import typing as T
from pathlib import Path
from urllib.request import urlopen
PathLike = T.Union[Path,str]
def _get_meson_output(root_dir: Path, args: T.List) -> str:
env = os.environ.copy()
env['COLUMNS'] = '80'
return subprocess.run([str(sys.executable), str(root_dir/'meson.py')] + args, check=True, capture_output=True, text=True, env=env).stdout.strip()
def get_commands_data(root_dir: Path) -> T.Dict[str, T.Any]:
usage_start_pattern = re.compile(r'^usage: ', re.MULTILINE)
positional_start_pattern = re.compile(r'^positional arguments:[\t ]*[\r\n]+', re.MULTILINE)
options_start_pattern = re.compile(r'^optional arguments:[\t ]*[\r\n]+', re.MULTILINE)
commands_start_pattern = re.compile(r'^[A-Za-z ]*[Cc]ommands:[\t ]*[\r\n]+', re.MULTILINE)
def get_next_start(iterators: T.Sequence[T.Any], end: T.Optional[int]) -> int:
return next((i.start() for i in iterators if i), end)
def normalize_text(text: str) -> str:
# clean up formatting
out = text
out = re.sub(r'\r\n', r'\r', out, flags=re.MULTILINE) # replace newlines with a linux EOL
out = re.sub(r'^ +$', '', out, flags=re.MULTILINE) # remove trailing whitespace
out = re.sub(r'(?:^\n+|\n+$)', '', out) # remove trailing empty lines
return out
def parse_cmd(cmd: str) -> T.Dict[str, str]:
cmd_len = len(cmd)
usage = usage_start_pattern.search(cmd)
positionals = positional_start_pattern.search(cmd)
options = options_start_pattern.search(cmd)
commands = commands_start_pattern.search(cmd)
arguments_start = get_next_start([positionals, options, commands], None)
assert arguments_start
# replace `usage:` with `$` and dedent
dedent_size = (usage.end() - usage.start()) - len('$ ')
usage_text = textwrap.dedent(f'{dedent_size * " "}$ {normalize_text(cmd[usage.end():arguments_start])}')
return {
'usage': usage_text,
'arguments': normalize_text(cmd[arguments_start:cmd_len]),
}
def clean_dir_arguments(text: str) -> str:
# Remove platform specific defaults
args = [
'prefix',
'bindir',
'datadir',
'includedir',
'infodir',
'libdir',
'libexecdir',
'localedir',
'localstatedir',
'mandir',
'sbindir',
'sharedstatedir',
'sysconfdir'
]
out = text
for a in args:
out = re.sub(r'(--' + a + r' .+?)\s+\(default:.+?\)(\.)?', r'\1\2', out, flags=re.MULTILINE|re.DOTALL)
return out
output = _get_meson_output(root_dir, ['--help'])
commands = {c.strip() for c in re.findall(r'usage:(?:.+)?{((?:[a-z]+,*)+?)}', output, re.MULTILINE|re.DOTALL)[0].split(',')}
commands.remove('help')
cmd_data = dict()
for cmd in commands:
cmd_output = _get_meson_output(root_dir, [cmd, '--help'])
cmd_data[cmd] = parse_cmd(cmd_output)
if cmd in ['setup', 'configure']:
cmd_data[cmd]['arguments'] = clean_dir_arguments(cmd_data[cmd]['arguments'])
return cmd_data
def generate_hotdoc_includes(root_dir: Path, output_dir: Path) -> None:
cmd_data = get_commands_data(root_dir)
for cmd, parsed in cmd_data.items():
for typ in parsed.keys():
with open(output_dir / (cmd+'_'+typ+'.inc'), 'w', encoding='utf-8') as f:
f.write(parsed[typ])
def generate_wrapdb_table(output_dir: Path) -> None:
url = urlopen('https://wrapdb.mesonbuild.com/v2/releases.json')
releases = json.loads(url.read().decode())
with open(output_dir / 'wrapdb-table.md', 'w', encoding='utf-8') as f:
f.write('| Project | Versions | Provided dependencies | Provided programs |\n')
f.write('| ------- | -------- | --------------------- | ----------------- |\n')
for name, info in releases.items():
versions = [f'[{v}](https://wrapdb.mesonbuild.com/v2/{name}_{v}/{name}.wrap)' for v in info['versions']]
# Highlight latest version.
versions_str = f'<big>**{versions[0]}**</big><br/>' + ', '.join(versions[1:])
dependency_names = info.get('dependency_names', [])
dependency_names_str = ', '.join(dependency_names)
program_names = info.get('program_names', [])
program_names_str = ', '.join(program_names)
f.write(f'| {name} | {versions_str} | {dependency_names_str} | {program_names_str} |\n')
def regenerate_docs(output_dir: PathLike,
dummy_output_file: T.Optional[PathLike]) -> None:
if not output_dir:
raise ValueError(f'Output directory value is not set')
output_dir = Path(output_dir).resolve()
output_dir.mkdir(parents=True, exist_ok=True)
root_dir = Path(__file__).resolve().parent.parent
generate_hotdoc_includes(root_dir, output_dir)
generate_wrapdb_table(output_dir)
if dummy_output_file:
with open(output_dir/dummy_output_file, 'w', encoding='utf-8') as f:
f.write('dummy file for custom_target output')
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='Generate meson docs')
parser.add_argument('--output-dir', required=True)
parser.add_argument('--dummy-output-file', type=str)
args = parser.parse_args()
regenerate_docs(output_dir=args.output_dir,
dummy_output_file=args.dummy_output_file)
|
