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