The Meson Build System http://mesonbuild.com/
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# Copyright 2020 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 __future__ import annotations
from pathlib import Path
import os
import shlex
import subprocess
import typing as T
from . import ExtensionModule, ModuleReturnValue, NewExtensionModule, ModuleInfo
from .. import mlog, build
from ..compilers.compilers import CFLAGS_MAPPING
from ..envconfig import ENV_VAR_PROG_MAP
from ..dependencies import InternalDependency, PkgConfigDependency
from ..interpreterbase import FeatureNew
from ..interpreter.type_checking import ENV_KW, DEPENDS_KW
from ..interpreterbase.decorators import ContainerTypeInfo, KwargInfo, typed_kwargs, typed_pos_args
from ..mesonlib import (EnvironmentException, MesonException, Popen_safe, MachineChoice,
get_variable_regex, do_replacement, join_args, OptionKey)
if T.TYPE_CHECKING:
from typing_extensions import TypedDict
from . import ModuleState
from .._typing import ImmutableListProtocol
from ..build import BuildTarget, CustomTarget
from ..interpreter import Interpreter
from ..interpreterbase import TYPE_var
class Dependency(TypedDict):
subdir: str
class AddProject(TypedDict):
configure_options: T.List[str]
cross_configure_options: T.List[str]
verbose: bool
env: build.EnvironmentVariables
depends: T.List[T.Union[BuildTarget, CustomTarget]]
class ExternalProject(NewExtensionModule):
make: ImmutableListProtocol[str]
def __init__(self,
state: 'ModuleState',
configure_command: str,
configure_options: T.List[str],
cross_configure_options: T.List[str],
env: build.EnvironmentVariables,
verbose: bool,
extra_depends: T.List[T.Union['BuildTarget', 'CustomTarget']]):
super().__init__()
self.methods.update({'dependency': self.dependency_method,
})
self.subdir = Path(state.subdir)
self.project_version = state.project_version
self.subproject = state.subproject
self.env = state.environment
self.build_machine = state.build_machine
self.host_machine = state.host_machine
self.configure_command = configure_command
self.configure_options = configure_options
self.cross_configure_options = cross_configure_options
self.verbose = verbose
self.user_env = env
self.src_dir = Path(self.env.get_source_dir(), self.subdir)
self.build_dir = Path(self.env.get_build_dir(), self.subdir, 'build')
self.install_dir = Path(self.env.get_build_dir(), self.subdir, 'dist')
_p = self.env.coredata.get_option(OptionKey('prefix'))
assert isinstance(_p, str), 'for mypy'
self.prefix = Path(_p)
_l = self.env.coredata.get_option(OptionKey('libdir'))
assert isinstance(_l, str), 'for mypy'
self.libdir = Path(_l)
_i = self.env.coredata.get_option(OptionKey('includedir'))
assert isinstance(_i, str), 'for mypy'
self.includedir = Path(_i)
self.name = self.src_dir.name
# On Windows if the prefix is "c:/foo" and DESTDIR is "c:/bar", `make`
# will install files into "c:/bar/c:/foo" which is an invalid path.
# Work around that issue by removing the drive from prefix.
if self.prefix.drive:
self.prefix = self.prefix.relative_to(self.prefix.drive)
# self.prefix is an absolute path, so we cannot append it to another path.
self.rel_prefix = self.prefix.relative_to(self.prefix.root)
self._configure(state)
self.targets = self._create_targets(extra_depends)
def _configure(self, state: 'ModuleState') -> None:
if self.configure_command == 'waf':
FeatureNew('Waf external project', '0.60.0').use(self.subproject, state.current_node)
waf = state.find_program('waf')
configure_cmd = waf.get_command()
configure_cmd += ['configure', '-o', str(self.build_dir)]
workdir = self.src_dir
self.make = waf.get_command() + ['build']
else:
# Assume it's the name of a script in source dir, like 'configure',
# 'autogen.sh', etc).
configure_path = Path(self.src_dir, self.configure_command)
configure_prog = state.find_program(configure_path.as_posix())
configure_cmd = configure_prog.get_command()
workdir = self.build_dir
self.make = state.find_program('make').get_command()
d = [('PREFIX', '--prefix=@PREFIX@', self.prefix.as_posix()),
('LIBDIR', '--libdir=@PREFIX@/@LIBDIR@', self.libdir.as_posix()),
('INCLUDEDIR', None, self.includedir.as_posix()),
]
self._validate_configure_options(d, state)
configure_cmd += self._format_options(self.configure_options, d)
if self.env.is_cross_build():
host = '{}-{}-{}'.format(self.host_machine.cpu_family,
self.build_machine.system,
self.host_machine.system)
d = [('HOST', None, host)]
configure_cmd += self._format_options(self.cross_configure_options, d)
# Set common env variables like CFLAGS, CC, etc.
link_exelist: T.List[str] = []
link_args: T.List[str] = []
self.run_env = os.environ.copy()
for lang, compiler in self.env.coredata.compilers[MachineChoice.HOST].items():
if any(lang not in i for i in (ENV_VAR_PROG_MAP, CFLAGS_MAPPING)):
continue
cargs = self.env.coredata.get_external_args(MachineChoice.HOST, lang)
assert isinstance(cargs, list), 'for mypy'
self.run_env[ENV_VAR_PROG_MAP[lang]] = self._quote_and_join(compiler.get_exelist())
self.run_env[CFLAGS_MAPPING[lang]] = self._quote_and_join(cargs)
if not link_exelist:
link_exelist = compiler.get_linker_exelist()
_l = self.env.coredata.get_external_link_args(MachineChoice.HOST, lang)
assert isinstance(_l, list), 'for mypy'
link_args = _l
if link_exelist:
# FIXME: Do not pass linker because Meson uses CC as linker wrapper,
# but autotools often expects the real linker (e.h. GNU ld).
# self.run_env['LD'] = self._quote_and_join(link_exelist)
pass
self.run_env['LDFLAGS'] = self._quote_and_join(link_args)
self.run_env = self.user_env.get_env(self.run_env)
self.run_env = PkgConfigDependency.setup_env(self.run_env, self.env, MachineChoice.HOST,
uninstalled=True)
self.build_dir.mkdir(parents=True, exist_ok=True)
self._run('configure', configure_cmd, workdir)
def _quote_and_join(self, array: T.List[str]) -> str:
return ' '.join([shlex.quote(i) for i in array])
def _validate_configure_options(self, variables: T.List[T.Tuple[str, str, str]], state: 'ModuleState') -> None:
# Ensure the user at least try to pass basic info to the build system,
# like the prefix, libdir, etc.
for key, default, val in variables:
if default is None:
continue
key_format = f'@{key}@'
for option in self.configure_options:
if key_format in option:
break
else:
FeatureNew('Default configure_option', '0.57.0').use(self.subproject, state.current_node)
self.configure_options.append(default)
def _format_options(self, options: T.List[str], variables: T.List[T.Tuple[str, str, str]]) -> T.List[str]:
out: T.List[str] = []
missing = set()
regex = get_variable_regex('meson')
confdata: T.Dict[str, T.Tuple[str, T.Optional[str]]] = {k: (v, None) for k, _, v in variables}
for o in options:
arg, missing_vars = do_replacement(regex, o, 'meson', confdata)
missing.update(missing_vars)
out.append(arg)
if missing:
var_list = ", ".join(repr(m) for m in sorted(missing))
raise EnvironmentException(
f"Variables {var_list} in configure options are missing.")
return out
def _run(self, step: str, command: T.List[str], workdir: Path) -> None:
mlog.log(f'External project {self.name}:', mlog.bold(step))
m = 'Running command ' + str(command) + ' in directory ' + str(workdir) + '\n'
log_filename = Path(mlog.log_dir, f'{self.name}-{step}.log')
output = None
if not self.verbose:
output = open(log_filename, 'w', encoding='utf-8')
output.write(m + '\n')
output.flush()
else:
mlog.log(m)
p, *_ = Popen_safe(command, cwd=workdir, env=self.run_env,
stderr=subprocess.STDOUT,
stdout=output)
if p.returncode != 0:
m = f'{step} step returned error code {p.returncode}.'
if not self.verbose:
m += '\nSee logs: ' + str(log_filename)
raise MesonException(m)
def _create_targets(self, extra_depends: T.List[T.Union['BuildTarget', 'CustomTarget']]) -> T.List['TYPE_var']:
cmd = self.env.get_build_command()
cmd += ['--internal', 'externalproject',
'--name', self.name,
'--srcdir', self.src_dir.as_posix(),
'--builddir', self.build_dir.as_posix(),
'--installdir', self.install_dir.as_posix(),
'--logdir', mlog.log_dir,
'--make', join_args(self.make),
]
if self.verbose:
cmd.append('--verbose')
self.target = build.CustomTarget(
self.name,
self.subdir.as_posix(),
self.subproject,
self.env,
cmd + ['@OUTPUT@', '@DEPFILE@'],
[],
[f'{self.name}.stamp'],
depfile=f'{self.name}.d',
console=True,
extra_depends=extra_depends,
)
idir = build.InstallDir(self.subdir.as_posix(),
Path('dist', self.rel_prefix).as_posix(),
install_dir='.',
install_dir_name='.',
install_mode=None,
exclude=None,
strip_directory=True,
from_source_dir=False,
subproject=self.subproject)
return [self.target, idir]
@typed_pos_args('external_project.dependency', str)
@typed_kwargs('external_project.dependency', KwargInfo('subdir', str, default=''))
def dependency_method(self, state: 'ModuleState', args: T.Tuple[str], kwargs: 'Dependency') -> InternalDependency:
libname = args[0]
abs_includedir = Path(self.install_dir, self.rel_prefix, self.includedir)
if kwargs['subdir']:
abs_includedir = Path(abs_includedir, kwargs['subdir'])
abs_libdir = Path(self.install_dir, self.rel_prefix, self.libdir)
version = self.project_version
compile_args = [f'-I{abs_includedir}']
link_args = [f'-L{abs_libdir}', f'-l{libname}']
sources = self.target
dep = InternalDependency(version, [], compile_args, link_args, [],
[], [sources], [], [], {}, [], [], [])
return dep
class ExternalProjectModule(ExtensionModule):
INFO = ModuleInfo('External build system', '0.56.0', unstable=True)
def __init__(self, interpreter: 'Interpreter'):
super().__init__(interpreter)
self.methods.update({'add_project': self.add_project,
})
@typed_pos_args('external_project_mod.add_project', str)
@typed_kwargs(
'external_project.add_project',
KwargInfo('configure_options', ContainerTypeInfo(list, str), default=[], listify=True),
KwargInfo('cross_configure_options', ContainerTypeInfo(list, str), default=['--host=@HOST@'], listify=True),
KwargInfo('verbose', bool, default=False),
ENV_KW,
DEPENDS_KW.evolve(since='0.63.0'),
)
def add_project(self, state: 'ModuleState', args: T.Tuple[str], kwargs: 'AddProject') -> ModuleReturnValue:
configure_command = args[0]
project = ExternalProject(state,
configure_command,
kwargs['configure_options'],
kwargs['cross_configure_options'],
kwargs['env'],
kwargs['verbose'],
kwargs['depends'])
return ModuleReturnValue(project, project.targets)
def initialize(interp: 'Interpreter') -> ExternalProjectModule:
return ExternalProjectModule(interp)