/usr/share/meson/mesonbuild/wrap/wrap.py is in meson 0.29.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 | # Copyright 2015 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.
from .. import mlog
import urllib.request, os, hashlib, shutil
import subprocess
import sys
try:
import ssl
has_ssl = True
API_ROOT = 'https://wrapdb.mesonbuild.com/v1/'
except ImportError:
has_ssl = False
API_ROOT = 'http://wrapdb.mesonbuild.com/v1/'
ssl_warning_printed = False
def build_ssl_context():
ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
ctx.options |= ssl.OP_NO_SSLv2
ctx.options |= ssl.OP_NO_SSLv3
ctx.verify_mode = ssl.CERT_REQUIRED
ctx.load_default_certs()
return ctx
def open_wrapdburl(urlstring):
global ssl_warning_printed
if has_ssl:
try:
return urllib.request.urlopen(urlstring)#, context=build_ssl_context())
except urllib.error.URLError:
if not ssl_warning_printed:
print('SSL connection failed. Falling back to unencrypted connections.')
ssl_warning_printed = True
if not ssl_warning_printed:
print('Warning: SSL not available, traffic not authenticated.',
file=sys.stderr)
ssl_warning_printed = True
# Trying to open SSL connection to wrapdb fails because the
# certificate is not known.
if urlstring.startswith('https'):
urlstring = 'http' + urlstring[5:]
return urllib.request.urlopen(urlstring)
class PackageDefinition:
def __init__(self, fname):
self.values = {}
ifile = open(fname)
first = ifile.readline().strip()
if first == '[wrap-file]':
self.type = 'file'
elif first == '[wrap-git]':
self.type = 'git'
else:
raise RuntimeError('Invalid format of package file')
for line in ifile:
line = line.strip()
if line == '':
continue
(k, v) = line.split('=', 1)
k = k.strip()
v = v.strip()
self.values[k] = v
def get(self, key):
return self.values[key]
def has_patch(self):
return 'patch_url' in self.values
class Resolver:
def __init__(self, subdir_root):
self.subdir_root = subdir_root
self.cachedir = os.path.join(self.subdir_root, 'packagecache')
def resolve(self, packagename):
fname = os.path.join(self.subdir_root, packagename + '.wrap')
dirname = os.path.join(self.subdir_root, packagename)
if not os.path.isfile(fname):
if os.path.isdir(dirname):
# No wrap file but dir exists -> user put it there manually.
return packagename
return None
p = PackageDefinition(fname)
if p.type == 'file':
if not os.path.isdir(self.cachedir):
os.mkdir(self.cachedir)
self.download(p, packagename)
self.extract_package(p)
elif p.type == 'git':
self.get_git(p)
else:
raise RuntimeError('Unreachable code.')
return p.get('directory')
def get_git(self, p):
checkoutdir = os.path.join(self.subdir_root, p.get('directory'))
revno = p.get('revision')
is_there = os.path.isdir(checkoutdir)
if is_there:
if revno.lower() == 'head':
subprocess.check_call(['git', 'pull'], cwd=checkoutdir)
else:
if subprocess.call(['git', 'checkout', revno], cwd=checkoutdir) != 0:
subprocess.check_call(['git', 'fetch'], cwd=checkoutdir)
subprocess.check_call(['git', 'checkout', revno],
cwd=checkoutdir)
else:
subprocess.check_call(['git', 'clone', p.get('url'),
p.get('directory')], cwd=self.subdir_root)
if revno.lower() != 'head':
subprocess.check_call(['git', 'checkout', revno],
cwd=checkoutdir)
def get_data(self, url):
blocksize = 10*1024
if url.startswith('https://wrapdb.mesonbuild.com'):
resp = open_wrapdburl(url)
else:
resp = urllib.request.urlopen(url)
dlsize = int(resp.info()['Content-Length'])
print('Download size:', dlsize)
print('Downloading: ', end='')
sys.stdout.flush()
printed_dots = 0
blocks = []
downloaded = 0
while True:
block = resp.read(blocksize)
if block == b'':
break
downloaded += len(block)
blocks.append(block)
ratio = int(downloaded/dlsize * 10)
while printed_dots < ratio:
print('.', end='')
sys.stdout.flush()
printed_dots += 1
print('')
resp.close()
return b''.join(blocks)
def get_hash(self, data):
h = hashlib.sha256()
h.update(data)
hashvalue = h.hexdigest()
return hashvalue
def download(self, p, packagename):
ofname = os.path.join(self.cachedir, p.get('source_filename'))
if os.path.exists(ofname):
mlog.log('Using', mlog.bold(packagename), 'from cache.')
return
srcurl = p.get('source_url')
mlog.log('Dowloading', mlog.bold(packagename), 'from', mlog.bold(srcurl))
srcdata = self.get_data(srcurl)
dhash = self.get_hash(srcdata)
expected = p.get('source_hash')
if dhash != expected:
raise RuntimeError('Incorrect hash for source %s:\n %s expected\n %s actual.' % (packagename, expected, dhash))
open(ofname, 'wb').write(srcdata)
if p.has_patch():
purl = p.get('patch_url')
mlog.log('Downloading patch from', mlog.bold(purl))
pdata = self.get_data(purl)
phash = self.get_hash(pdata)
expected = p.get('patch_hash')
if phash != expected:
raise RuntimeError('Incorrect hash for patch %s:\n %s expected\n %s actual' % (packagename, expected, phash))
open(os.path.join(self.cachedir, p.get('patch_filename')), 'wb').write(pdata)
else:
mlog.log('Package does not require patch.')
def extract_package(self, package):
if sys.version_info < (3, 5):
try:
import lzma
del lzma
try:
shutil.register_unpack_format('xztar', ['.tar.xz', '.txz'], shutil._unpack_tarfile, [], "xz'ed tar-file")
except shutil.RegistryError:
pass
except ImportError:
pass
target_dir = os.path.join(self.subdir_root, package.get('directory'))
if os.path.isdir(target_dir):
return
extract_dir = self.subdir_root
# Some upstreams ship packages that do not have a leading directory.
# Create one for them.
try:
package.get('lead_directory_missing')
os.mkdir(target_dir)
extract_dir = target_dir
except KeyError:
pass
shutil.unpack_archive(os.path.join(self.cachedir, package.get('source_filename')), extract_dir)
if package.has_patch():
shutil.unpack_archive(os.path.join(self.cachedir, package.get('patch_filename')), self.subdir_root)
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