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600 lines
26 KiB
600 lines
26 KiB
# Copyright 2015 The Meson development team |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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from .. import mlog |
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import contextlib |
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import urllib.request |
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import urllib.error |
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import urllib.parse |
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import os |
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import hashlib |
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import shutil |
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import tempfile |
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import stat |
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import subprocess |
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import sys |
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import configparser |
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import typing as T |
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import textwrap |
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from pathlib import Path |
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from . import WrapMode |
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from .. import coredata |
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from ..mesonlib import quiet_git, GIT, ProgressBar, MesonException |
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from .. import mesonlib |
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if T.TYPE_CHECKING: |
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import http.client |
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try: |
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# Importing is just done to check if SSL exists, so all warnings |
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# regarding 'imported but unused' can be safely ignored |
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import ssl # noqa |
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has_ssl = True |
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API_ROOT = 'https://wrapdb.mesonbuild.com/v1/' |
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except ImportError: |
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has_ssl = False |
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API_ROOT = 'http://wrapdb.mesonbuild.com/v1/' |
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REQ_TIMEOUT = 600.0 |
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SSL_WARNING_PRINTED = False |
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WHITELIST_SUBDOMAIN = 'wrapdb.mesonbuild.com' |
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ALL_TYPES = ['file', 'git', 'hg', 'svn'] |
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def whitelist_wrapdb(urlstr: str) -> urllib.parse.ParseResult: |
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""" raises WrapException if not whitelisted subdomain """ |
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url = urllib.parse.urlparse(urlstr) |
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if not url.hostname: |
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raise WrapException('{} is not a valid URL'.format(urlstr)) |
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if not url.hostname.endswith(WHITELIST_SUBDOMAIN): |
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raise WrapException('{} is not a whitelisted WrapDB URL'.format(urlstr)) |
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if has_ssl and not url.scheme == 'https': |
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raise WrapException('WrapDB did not have expected SSL https url, instead got {}'.format(urlstr)) |
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return url |
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def open_wrapdburl(urlstring: str) -> 'http.client.HTTPResponse': |
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global SSL_WARNING_PRINTED |
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url = whitelist_wrapdb(urlstring) |
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if has_ssl: |
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try: |
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return T.cast('http.client.HTTPResponse', urllib.request.urlopen(urllib.parse.urlunparse(url), timeout=REQ_TIMEOUT)) |
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except urllib.error.URLError as excp: |
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raise WrapException('WrapDB connection failed to {} with error {}'.format(urlstring, excp)) |
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# following code is only for those without Python SSL |
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nossl_url = url._replace(scheme='http') |
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if not SSL_WARNING_PRINTED: |
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mlog.warning('SSL module not available in {}: WrapDB traffic not authenticated.'.format(sys.executable)) |
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SSL_WARNING_PRINTED = True |
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try: |
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return T.cast('http.client.HTTPResponse', urllib.request.urlopen(urllib.parse.urlunparse(nossl_url), timeout=REQ_TIMEOUT)) |
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except urllib.error.URLError as excp: |
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raise WrapException('WrapDB connection failed to {} with error {}'.format(urlstring, excp)) |
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class WrapException(MesonException): |
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pass |
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class WrapNotFoundException(WrapException): |
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pass |
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class PackageDefinition: |
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def __init__(self, fname: str): |
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self.filename = fname |
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self.type = None # type: T.Optional[str] |
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self.values = {} # type: T.Dict[str, str] |
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self.provided_deps = {} # type: T.Dict[str, T.Optional[str]] |
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self.provided_programs = [] # type: T.List[str] |
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self.basename = os.path.basename(fname) |
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self.has_wrap = self.basename.endswith('.wrap') |
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self.name = self.basename[:-5] if self.has_wrap else self.basename |
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self.directory = self.name |
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self.provided_deps[self.name] = None |
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if self.has_wrap: |
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self.parse_wrap() |
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self.directory = self.values.get('directory', self.name) |
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if os.path.dirname(self.directory): |
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raise WrapException('Directory key must be a name and not a path') |
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if self.type and self.type not in ALL_TYPES: |
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raise WrapException('Unknown wrap type {!r}'.format(self.type)) |
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self.filesdir = os.path.join(os.path.dirname(self.filename), 'packagefiles') |
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def parse_wrap(self) -> None: |
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try: |
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self.config = configparser.ConfigParser(interpolation=None) |
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self.config.read(self.filename) |
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except configparser.Error: |
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raise WrapException('Failed to parse {}'.format(self.basename)) |
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self.parse_wrap_section() |
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if self.type == 'redirect': |
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# [wrap-redirect] have a `filename` value pointing to the real wrap |
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# file we should parse instead. It must be relative to the current |
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# wrap file location and must be in the form foo/subprojects/bar.wrap. |
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dirname = Path(self.filename).parent |
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fname = Path(self.values['filename']) |
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for i, p in enumerate(fname.parts): |
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if i % 2 == 0: |
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if p == '..': |
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raise WrapException('wrap-redirect filename cannot contain ".."') |
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else: |
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if p != 'subprojects': |
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raise WrapException('wrap-redirect filename must be in the form foo/subprojects/bar.wrap') |
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if fname.suffix != '.wrap': |
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raise WrapException('wrap-redirect filename must be a .wrap file') |
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fname = dirname / fname |
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if not fname.is_file(): |
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raise WrapException('wrap-redirect filename does not exist') |
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self.filename = str(fname) |
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self.parse_wrap() |
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return |
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self.parse_provide_section() |
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def parse_wrap_section(self) -> None: |
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if len(self.config.sections()) < 1: |
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raise WrapException('Missing sections in {}'.format(self.basename)) |
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self.wrap_section = self.config.sections()[0] |
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if not self.wrap_section.startswith('wrap-'): |
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m = '{!r} is not a valid first section in {}' |
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raise WrapException(m.format(self.wrap_section, self.basename)) |
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self.type = self.wrap_section[5:] |
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self.values = dict(self.config[self.wrap_section]) |
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def parse_provide_section(self) -> None: |
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if self.config.has_section('provide'): |
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for k, v in self.config['provide'].items(): |
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if k == 'dependency_names': |
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# A comma separated list of dependency names that does not |
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# need a variable name |
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names_dict = {n.strip(): None for n in v.split(',')} |
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self.provided_deps.update(names_dict) |
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continue |
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if k == 'program_names': |
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# A comma separated list of program names |
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names_list = [n.strip() for n in v.split(',')] |
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self.provided_programs += names_list |
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continue |
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if not v: |
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m = ('Empty dependency variable name for {!r} in {}. ' |
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'If the subproject uses meson.override_dependency() ' |
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'it can be added in the "dependency_names" special key.') |
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raise WrapException(m.format(k, self.basename)) |
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self.provided_deps[k] = v |
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def get(self, key: str) -> str: |
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try: |
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return self.values[key] |
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except KeyError: |
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m = 'Missing key {!r} in {}' |
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raise WrapException(m.format(key, self.basename)) |
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def get_directory(subdir_root: str, packagename: str) -> str: |
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fname = os.path.join(subdir_root, packagename + '.wrap') |
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if os.path.isfile(fname): |
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wrap = PackageDefinition(fname) |
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return wrap.directory |
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return packagename |
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def verbose_git(cmd: T.List[str], workingdir: str, check: bool = False) -> bool: |
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''' |
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Wrapper to convert GitException to WrapException caught in interpreter. |
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''' |
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try: |
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return mesonlib.verbose_git(cmd, workingdir, check=check) |
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except mesonlib.GitException as e: |
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raise WrapException(str(e)) |
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class Resolver: |
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def __init__(self, source_dir: str, subdir: str, wrap_mode: WrapMode = WrapMode.default) -> None: |
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self.source_dir = source_dir |
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self.subdir = subdir |
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self.wrap_mode = wrap_mode |
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self.subdir_root = os.path.join(source_dir, subdir) |
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self.cachedir = os.path.join(self.subdir_root, 'packagecache') |
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self.wraps = {} # type: T.Dict[str, PackageDefinition] |
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self.provided_deps = {} # type: T.Dict[str, PackageDefinition] |
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self.provided_programs = {} # type: T.Dict[str, PackageDefinition] |
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self.load_wraps() |
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def load_wraps(self) -> None: |
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if not os.path.isdir(self.subdir_root): |
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return |
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root, dirs, files = next(os.walk(self.subdir_root)) |
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for i in files: |
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if not i.endswith('.wrap'): |
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continue |
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fname = os.path.join(self.subdir_root, i) |
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wrap = PackageDefinition(fname) |
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self.wraps[wrap.name] = wrap |
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if wrap.directory in dirs: |
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dirs.remove(wrap.directory) |
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# Add dummy package definition for directories not associated with a wrap file. |
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for i in dirs: |
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if i in ['packagecache', 'packagefiles']: |
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continue |
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fname = os.path.join(self.subdir_root, i) |
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wrap = PackageDefinition(fname) |
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self.wraps[wrap.name] = wrap |
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for wrap in self.wraps.values(): |
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for k in wrap.provided_deps.keys(): |
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if k in self.provided_deps: |
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prev_wrap = self.provided_deps[k] |
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m = 'Multiple wrap files provide {!r} dependency: {} and {}' |
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raise WrapException(m.format(k, wrap.basename, prev_wrap.basename)) |
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self.provided_deps[k] = wrap |
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for k in wrap.provided_programs: |
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if k in self.provided_programs: |
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prev_wrap = self.provided_programs[k] |
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m = 'Multiple wrap files provide {!r} program: {} and {}' |
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raise WrapException(m.format(k, wrap.basename, prev_wrap.basename)) |
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self.provided_programs[k] = wrap |
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def merge_wraps(self, other_resolver: 'Resolver') -> None: |
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for k, v in other_resolver.wraps.items(): |
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self.wraps.setdefault(k, v) |
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for k, v in other_resolver.provided_deps.items(): |
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self.provided_deps.setdefault(k, v) |
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for k, v in other_resolver.provided_programs.items(): |
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self.provided_programs.setdefault(k, v) |
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def find_dep_provider(self, packagename: str) -> T.Optional[T.Union[str, T.List[str]]]: |
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# Return value is in the same format as fallback kwarg: |
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# ['subproject_name', 'variable_name'], or 'subproject_name'. |
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wrap = self.provided_deps.get(packagename) |
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if wrap: |
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dep_var = wrap.provided_deps.get(packagename) |
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if dep_var: |
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return [wrap.name, dep_var] |
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return wrap.name |
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return None |
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def find_program_provider(self, names: T.List[str]) -> T.Optional[str]: |
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for name in names: |
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wrap = self.provided_programs.get(name) |
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if wrap: |
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return wrap.name |
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return None |
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def resolve(self, packagename: str, method: str, current_subproject: str = '') -> str: |
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self.current_subproject = current_subproject |
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self.packagename = packagename |
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self.directory = packagename |
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self.wrap = self.wraps.get(packagename) |
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if not self.wrap: |
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m = 'Neither a subproject directory nor a {}.wrap file was found.' |
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raise WrapNotFoundException(m.format(self.packagename)) |
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self.directory = self.wrap.directory |
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if self.wrap.has_wrap: |
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# We have a .wrap file, source code will be placed into main |
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# project's subproject_dir even if the wrap file comes from another |
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# subproject. |
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self.dirname = os.path.join(self.subdir_root, self.directory) |
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# Check if the wrap comes from the main project. |
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main_fname = os.path.join(self.subdir_root, self.wrap.basename) |
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if self.wrap.filename != main_fname: |
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rel = os.path.relpath(self.wrap.filename, self.source_dir) |
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mlog.log('Using', mlog.bold(rel)) |
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# Write a dummy wrap file in main project that redirect to the |
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# wrap we picked. |
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with open(main_fname, 'w') as f: |
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f.write(textwrap.dedent('''\ |
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[wrap-redirect] |
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filename = {} |
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'''.format(os.path.relpath(self.wrap.filename, self.subdir_root)))) |
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else: |
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# No wrap file, it's a dummy package definition for an existing |
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# directory. Use the source code in place. |
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self.dirname = self.wrap.filename |
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rel_path = os.path.relpath(self.dirname, self.source_dir) |
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meson_file = os.path.join(self.dirname, 'meson.build') |
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cmake_file = os.path.join(self.dirname, 'CMakeLists.txt') |
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if method not in ['meson', 'cmake']: |
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raise WrapException('Only the methods "meson" and "cmake" are supported') |
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# The directory is there and has meson.build? Great, use it. |
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if method == 'meson' and os.path.exists(meson_file): |
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return rel_path |
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if method == 'cmake' and os.path.exists(cmake_file): |
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return rel_path |
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# Check if the subproject is a git submodule |
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self.resolve_git_submodule() |
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if os.path.exists(self.dirname): |
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if not os.path.isdir(self.dirname): |
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raise WrapException('Path already exists but is not a directory') |
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else: |
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if self.wrap.type == 'file': |
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self.get_file() |
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else: |
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self.check_can_download() |
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if self.wrap.type == 'git': |
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self.get_git() |
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elif self.wrap.type == "hg": |
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self.get_hg() |
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elif self.wrap.type == "svn": |
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self.get_svn() |
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else: |
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raise WrapException('Unknown wrap type {!r}'.format(self.wrap.type)) |
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self.apply_patch() |
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# A meson.build or CMakeLists.txt file is required in the directory |
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if method == 'meson' and not os.path.exists(meson_file): |
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raise WrapException('Subproject exists but has no meson.build file') |
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if method == 'cmake' and not os.path.exists(cmake_file): |
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raise WrapException('Subproject exists but has no CMakeLists.txt file') |
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return rel_path |
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def check_can_download(self) -> None: |
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# Don't download subproject data based on wrap file if requested. |
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# Git submodules are ok (see above)! |
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if self.wrap_mode is WrapMode.nodownload: |
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m = 'Automatic wrap-based subproject downloading is disabled' |
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raise WrapException(m) |
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def resolve_git_submodule(self) -> bool: |
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if not GIT: |
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raise WrapException('Git program not found.') |
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# Are we in a git repository? |
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ret, out = quiet_git(['rev-parse'], self.subdir_root) |
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if not ret: |
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return False |
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# Is `dirname` a submodule? |
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ret, out = quiet_git(['submodule', 'status', self.dirname], self.subdir_root) |
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if not ret: |
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return False |
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# Submodule has not been added, add it |
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if out.startswith('+'): |
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mlog.warning('git submodule might be out of date') |
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return True |
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elif out.startswith('U'): |
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raise WrapException('git submodule has merge conflicts') |
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# Submodule exists, but is deinitialized or wasn't initialized |
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elif out.startswith('-'): |
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if verbose_git(['submodule', 'update', '--init', self.dirname], self.subdir_root): |
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return True |
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raise WrapException('git submodule failed to init') |
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# Submodule looks fine, but maybe it wasn't populated properly. Do a checkout. |
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elif out.startswith(' '): |
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verbose_git(['checkout', '.'], self.dirname) |
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# Even if checkout failed, try building it anyway and let the user |
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# handle any problems manually. |
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return True |
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elif out == '': |
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# It is not a submodule, just a folder that exists in the main repository. |
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return False |
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m = 'Unknown git submodule output: {!r}' |
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raise WrapException(m.format(out)) |
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def get_file(self) -> None: |
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path = self.get_file_internal('source') |
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extract_dir = self.subdir_root |
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# Some upstreams ship packages that do not have a leading directory. |
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# Create one for them. |
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if 'lead_directory_missing' in self.wrap.values: |
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os.mkdir(self.dirname) |
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extract_dir = self.dirname |
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shutil.unpack_archive(path, extract_dir) |
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def get_git(self) -> None: |
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if not GIT: |
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raise WrapException('Git program not found.') |
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revno = self.wrap.get('revision') |
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is_shallow = False |
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depth_option = [] # type: T.List[str] |
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if self.wrap.values.get('depth', '') != '': |
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is_shallow = True |
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depth_option = ['--depth', self.wrap.values.get('depth')] |
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# for some reason git only allows commit ids to be shallowly fetched by fetch not with clone |
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if is_shallow and self.is_git_full_commit_id(revno): |
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# git doesn't support directly cloning shallowly for commits, |
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# so we follow https://stackoverflow.com/a/43136160 |
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verbose_git(['init', self.directory], self.subdir_root, check=True) |
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verbose_git(['remote', 'add', 'origin', self.wrap.get('url')], self.dirname, check=True) |
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revno = self.wrap.get('revision') |
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verbose_git(['fetch', *depth_option, 'origin', revno], self.dirname, check=True) |
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verbose_git(['checkout', revno], self.dirname, check=True) |
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if self.wrap.values.get('clone-recursive', '').lower() == 'true': |
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verbose_git(['submodule', 'update', '--init', '--checkout', |
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'--recursive', *depth_option], self.dirname, check=True) |
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push_url = self.wrap.values.get('push-url') |
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if push_url: |
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verbose_git(['remote', 'set-url', '--push', 'origin', push_url], self.dirname, check=True) |
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else: |
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if not is_shallow: |
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verbose_git(['clone', self.wrap.get('url'), self.directory], self.subdir_root, check=True) |
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if revno.lower() != 'head': |
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if not verbose_git(['checkout', revno], self.dirname): |
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verbose_git(['fetch', self.wrap.get('url'), revno], self.dirname, check=True) |
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verbose_git(['checkout', revno], self.dirname, check=True) |
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else: |
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verbose_git(['clone', *depth_option, '--branch', revno, self.wrap.get('url'), |
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self.directory], self.subdir_root, check=True) |
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if self.wrap.values.get('clone-recursive', '').lower() == 'true': |
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verbose_git(['submodule', 'update', '--init', '--checkout', '--recursive', *depth_option], |
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self.dirname, check=True) |
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push_url = self.wrap.values.get('push-url') |
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if push_url: |
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verbose_git(['remote', 'set-url', '--push', 'origin', push_url], self.dirname, check=True) |
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def is_git_full_commit_id(self, revno: str) -> bool: |
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result = False |
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if len(revno) in (40, 64): # 40 for sha1, 64 for upcoming sha256 |
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result = all((ch in '0123456789AaBbCcDdEeFf' for ch in revno)) |
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return result |
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def get_hg(self) -> None: |
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revno = self.wrap.get('revision') |
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hg = shutil.which('hg') |
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if not hg: |
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raise WrapException('Mercurial program not found.') |
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subprocess.check_call([hg, 'clone', self.wrap.get('url'), |
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self.directory], cwd=self.subdir_root) |
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if revno.lower() != 'tip': |
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subprocess.check_call([hg, 'checkout', revno], |
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cwd=self.dirname) |
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def get_svn(self) -> None: |
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revno = self.wrap.get('revision') |
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svn = shutil.which('svn') |
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if not svn: |
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raise WrapException('SVN program not found.') |
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subprocess.check_call([svn, 'checkout', '-r', revno, self.wrap.get('url'), |
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self.directory], cwd=self.subdir_root) |
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def get_data(self, urlstring: str) -> T.Tuple[str, str]: |
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blocksize = 10 * 1024 |
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h = hashlib.sha256() |
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tmpfile = tempfile.NamedTemporaryFile(mode='wb', dir=self.cachedir, delete=False) |
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url = urllib.parse.urlparse(urlstring) |
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if url.hostname and url.hostname.endswith(WHITELIST_SUBDOMAIN): |
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resp = open_wrapdburl(urlstring) |
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elif WHITELIST_SUBDOMAIN in urlstring: |
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raise WrapException('{} may be a WrapDB-impersonating URL'.format(urlstring)) |
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else: |
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try: |
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req = urllib.request.Request(urlstring, headers={'User-Agent': 'mesonbuild/{}'.format(coredata.version)}) |
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resp = urllib.request.urlopen(req, timeout=REQ_TIMEOUT) |
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except urllib.error.URLError as e: |
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mlog.log(str(e)) |
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raise WrapException('could not get {} is the internet available?'.format(urlstring)) |
|
with contextlib.closing(resp) as resp: |
|
try: |
|
dlsize = int(resp.info()['Content-Length']) |
|
except TypeError: |
|
dlsize = None |
|
if dlsize is None: |
|
print('Downloading file of unknown size.') |
|
while True: |
|
block = resp.read(blocksize) |
|
if block == b'': |
|
break |
|
h.update(block) |
|
tmpfile.write(block) |
|
hashvalue = h.hexdigest() |
|
return hashvalue, tmpfile.name |
|
sys.stdout.flush() |
|
progress_bar = ProgressBar(bar_type='download', total=dlsize, |
|
desc='Downloading') |
|
while True: |
|
block = resp.read(blocksize) |
|
if block == b'': |
|
break |
|
h.update(block) |
|
tmpfile.write(block) |
|
progress_bar.update(len(block)) |
|
progress_bar.close() |
|
hashvalue = h.hexdigest() |
|
return hashvalue, tmpfile.name |
|
|
|
def check_hash(self, what: str, path: str, hash_required: bool = True) -> None: |
|
if what + '_hash' not in self.wrap.values and not hash_required: |
|
return |
|
expected = self.wrap.get(what + '_hash') |
|
h = hashlib.sha256() |
|
with open(path, 'rb') as f: |
|
h.update(f.read()) |
|
dhash = h.hexdigest() |
|
if dhash != expected: |
|
raise WrapException('Incorrect hash for {}:\n {} expected\n {} actual.'.format(what, expected, dhash)) |
|
|
|
def download(self, what: str, ofname: str, fallback: bool = False) -> None: |
|
self.check_can_download() |
|
srcurl = self.wrap.get(what + ('_fallback_url' if fallback else '_url')) |
|
mlog.log('Downloading', mlog.bold(self.packagename), what, 'from', mlog.bold(srcurl)) |
|
try: |
|
dhash, tmpfile = self.get_data(srcurl) |
|
expected = self.wrap.get(what + '_hash') |
|
if dhash != expected: |
|
os.remove(tmpfile) |
|
raise WrapException('Incorrect hash for {}:\n {} expected\n {} actual.'.format(what, expected, dhash)) |
|
except WrapException: |
|
if not fallback: |
|
if what + '_fallback_url' in self.wrap.values: |
|
return self.download(what, ofname, fallback=True) |
|
mlog.log('A fallback URL could be specified using', |
|
mlog.bold(what + '_fallback_url'), 'key in the wrap file') |
|
raise |
|
os.rename(tmpfile, ofname) |
|
|
|
def get_file_internal(self, what: str) -> str: |
|
filename = self.wrap.get(what + '_filename') |
|
if what + '_url' in self.wrap.values: |
|
cache_path = os.path.join(self.cachedir, filename) |
|
|
|
if os.path.exists(cache_path): |
|
self.check_hash(what, cache_path) |
|
mlog.log('Using', mlog.bold(self.packagename), what, 'from cache.') |
|
return cache_path |
|
|
|
if not os.path.isdir(self.cachedir): |
|
os.mkdir(self.cachedir) |
|
self.download(what, cache_path) |
|
return cache_path |
|
else: |
|
from ..interpreterbase import FeatureNew |
|
FeatureNew('Local wrap patch files without {}_url'.format(what), '0.55.0').use(self.current_subproject) |
|
path = Path(self.wrap.filesdir) / filename |
|
|
|
if not path.exists(): |
|
raise WrapException('File "{}" does not exist'.format(path)) |
|
self.check_hash(what, path.as_posix(), hash_required=False) |
|
|
|
return path.as_posix() |
|
|
|
def apply_patch(self) -> None: |
|
if 'patch_filename' in self.wrap.values and 'patch_directory' in self.wrap.values: |
|
m = 'Wrap file {!r} must not have both "patch_filename" and "patch_directory"' |
|
raise WrapException(m.format(self.wrap.basename)) |
|
if 'patch_filename' in self.wrap.values: |
|
path = self.get_file_internal('patch') |
|
try: |
|
shutil.unpack_archive(path, self.subdir_root) |
|
except Exception: |
|
with tempfile.TemporaryDirectory() as workdir: |
|
shutil.unpack_archive(path, workdir) |
|
self.copy_tree(workdir, self.subdir_root) |
|
elif 'patch_directory' in self.wrap.values: |
|
from ..interpreterbase import FeatureNew |
|
FeatureNew('patch_directory', '0.55.0').use(self.current_subproject) |
|
patch_dir = self.wrap.values['patch_directory'] |
|
src_dir = os.path.join(self.wrap.filesdir, patch_dir) |
|
if not os.path.isdir(src_dir): |
|
raise WrapException('patch directory does not exists: {}'.format(patch_dir)) |
|
self.copy_tree(src_dir, self.dirname) |
|
|
|
def copy_tree(self, root_src_dir: str, root_dst_dir: str) -> None: |
|
""" |
|
Copy directory tree. Overwrites also read only files. |
|
""" |
|
for src_dir, _, files in os.walk(root_src_dir): |
|
dst_dir = src_dir.replace(root_src_dir, root_dst_dir, 1) |
|
if not os.path.exists(dst_dir): |
|
os.makedirs(dst_dir) |
|
for file_ in files: |
|
src_file = os.path.join(src_dir, file_) |
|
dst_file = os.path.join(dst_dir, file_) |
|
if os.path.exists(dst_file): |
|
try: |
|
os.remove(dst_file) |
|
except PermissionError: |
|
os.chmod(dst_file, stat.S_IWUSR) |
|
os.remove(dst_file) |
|
shutil.copy2(src_file, dst_dir)
|
|
|