| # Copyright 2016-2018 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. |
| |
| import typing as T |
| import time |
| import sys, stat |
| import datetime |
| import os.path |
| import platform |
| import cProfile as profile |
| import argparse |
| import tempfile |
| import shutil |
| import glob |
| |
| from . import environment, interpreter, mesonlib |
| from . import build |
| from . import mlog, coredata |
| from . import mintro |
| from .mconf import make_lower_case |
| from .mesonlib import MesonException |
| |
| def add_arguments(parser): |
| coredata.register_builtin_arguments(parser) |
| parser.add_argument('--native-file', |
| default=[], |
| action='append', |
| help='File containing overrides for native compilation environment.') |
| parser.add_argument('--cross-file', |
| default=[], |
| action='append', |
| help='File describing cross compilation environment.') |
| parser.add_argument('-v', '--version', action='version', |
| version=coredata.version) |
| parser.add_argument('--profile-self', action='store_true', dest='profile', |
| help=argparse.SUPPRESS) |
| parser.add_argument('--fatal-meson-warnings', action='store_true', dest='fatal_warnings', |
| help='Make all Meson warnings fatal') |
| parser.add_argument('--reconfigure', action='store_true', |
| help='Set options and reconfigure the project. Useful when new ' + |
| 'options have been added to the project and the default value ' + |
| 'is not working.') |
| parser.add_argument('--wipe', action='store_true', |
| help='Wipe build directory and reconfigure using previous command line options. ' + |
| 'Useful when build directory got corrupted, or when rebuilding with a ' + |
| 'newer version of meson.') |
| parser.add_argument('builddir', nargs='?', default=None) |
| parser.add_argument('sourcedir', nargs='?', default=None) |
| |
| class MesonApp: |
| def __init__(self, options): |
| (self.source_dir, self.build_dir) = self.validate_dirs(options.builddir, |
| options.sourcedir, |
| options.reconfigure, |
| options.wipe) |
| if options.wipe: |
| # Make a copy of the cmd line file to make sure we can always |
| # restore that file if anything bad happens. For example if |
| # configuration fails we need to be able to wipe again. |
| restore = [] |
| with tempfile.TemporaryDirectory() as d: |
| for filename in [coredata.get_cmd_line_file(self.build_dir)] + glob.glob(os.path.join(self.build_dir, environment.Environment.private_dir, '*.ini')): |
| try: |
| restore.append((shutil.copy(filename, d), filename)) |
| except FileNotFoundError: |
| raise MesonException( |
| 'Cannot find cmd_line.txt. This is probably because this ' |
| 'build directory was configured with a meson version < 0.49.0.') |
| |
| coredata.read_cmd_line_file(self.build_dir, options) |
| |
| try: |
| # Don't delete the whole tree, just all of the files and |
| # folders in the tree. Otherwise calling wipe form the builddir |
| # will cause a crash |
| for l in os.listdir(self.build_dir): |
| l = os.path.join(self.build_dir, l) |
| if os.path.isdir(l) and not os.path.islink(l): |
| mesonlib.windows_proof_rmtree(l) |
| else: |
| mesonlib.windows_proof_rm(l) |
| finally: |
| for b, f in restore: |
| os.makedirs(os.path.dirname(f), exist_ok=True) |
| shutil.move(b, f) |
| |
| self.options = options |
| |
| def has_build_file(self, dirname: str) -> bool: |
| fname = os.path.join(dirname, environment.build_filename) |
| return os.path.exists(fname) |
| |
| def validate_core_dirs(self, dir1: str, dir2: str) -> T.Tuple[str, str]: |
| if dir1 is None: |
| if dir2 is None: |
| if not os.path.exists('meson.build') and os.path.exists('../meson.build'): |
| dir2 = '..' |
| else: |
| raise MesonException('Must specify at least one directory name.') |
| dir1 = os.getcwd() |
| if dir2 is None: |
| dir2 = os.getcwd() |
| ndir1 = os.path.abspath(os.path.realpath(dir1)) |
| ndir2 = os.path.abspath(os.path.realpath(dir2)) |
| if not os.path.exists(ndir1): |
| os.makedirs(ndir1) |
| if not os.path.exists(ndir2): |
| os.makedirs(ndir2) |
| if not stat.S_ISDIR(os.stat(ndir1).st_mode): |
| raise MesonException('{} is not a directory'.format(dir1)) |
| if not stat.S_ISDIR(os.stat(ndir2).st_mode): |
| raise MesonException('{} is not a directory'.format(dir2)) |
| if os.path.samefile(dir1, dir2): |
| raise MesonException('Source and build directories must not be the same. Create a pristine build directory.') |
| if self.has_build_file(ndir1): |
| if self.has_build_file(ndir2): |
| raise MesonException('Both directories contain a build file {}.'.format(environment.build_filename)) |
| return ndir1, ndir2 |
| if self.has_build_file(ndir2): |
| return ndir2, ndir1 |
| raise MesonException('Neither directory contains a build file {}.'.format(environment.build_filename)) |
| |
| def validate_dirs(self, dir1: str, dir2: str, reconfigure: bool, wipe: bool) -> T.Tuple[str, str]: |
| (src_dir, build_dir) = self.validate_core_dirs(dir1, dir2) |
| priv_dir = os.path.join(build_dir, 'meson-private/coredata.dat') |
| if os.path.exists(priv_dir): |
| if not reconfigure and not wipe: |
| print('Directory already configured.\n' |
| '\nJust run your build command (e.g. ninja) and Meson will regenerate as necessary.\n' |
| 'If ninja fails, run "ninja reconfigure" or "meson --reconfigure"\n' |
| 'to force Meson to regenerate.\n' |
| '\nIf build failures persist, run "meson setup --wipe" to rebuild from scratch\n' |
| 'using the same options as passed when configuring the build.' |
| '\nTo change option values, run "meson configure" instead.') |
| raise SystemExit |
| else: |
| has_cmd_line_file = os.path.exists(coredata.get_cmd_line_file(build_dir)) |
| if (wipe and not has_cmd_line_file) or (not wipe and reconfigure): |
| raise SystemExit('Directory does not contain a valid build tree:\n{}'.format(build_dir)) |
| return src_dir, build_dir |
| |
| def generate(self): |
| env = environment.Environment(self.source_dir, self.build_dir, self.options) |
| mlog.initialize(env.get_log_dir(), self.options.fatal_warnings) |
| if self.options.profile: |
| mlog.set_timestamp_start(time.monotonic()) |
| with mesonlib.BuildDirLock(self.build_dir): |
| self._generate(env) |
| |
| def _generate(self, env): |
| mlog.debug('Build started at', datetime.datetime.now().isoformat()) |
| mlog.debug('Main binary:', sys.executable) |
| mlog.debug('Build Options:', coredata.get_cmd_line_options(self.build_dir, self.options)) |
| mlog.debug('Python system:', platform.system()) |
| mlog.log(mlog.bold('The Meson build system')) |
| mlog.log('Version:', coredata.version) |
| mlog.log('Source dir:', mlog.bold(self.source_dir)) |
| mlog.log('Build dir:', mlog.bold(self.build_dir)) |
| if env.is_cross_build(): |
| mlog.log('Build type:', mlog.bold('cross build')) |
| else: |
| mlog.log('Build type:', mlog.bold('native build')) |
| b = build.Build(env) |
| |
| intr = interpreter.Interpreter(b) |
| if env.is_cross_build(): |
| logger_fun = mlog.log |
| else: |
| logger_fun = mlog.debug |
| logger_fun('Build machine cpu family:', mlog.bold(intr.builtin['build_machine'].cpu_family_method([], {}))) |
| logger_fun('Build machine cpu:', mlog.bold(intr.builtin['build_machine'].cpu_method([], {}))) |
| mlog.log('Host machine cpu family:', mlog.bold(intr.builtin['host_machine'].cpu_family_method([], {}))) |
| mlog.log('Host machine cpu:', mlog.bold(intr.builtin['host_machine'].cpu_method([], {}))) |
| logger_fun('Target machine cpu family:', mlog.bold(intr.builtin['target_machine'].cpu_family_method([], {}))) |
| logger_fun('Target machine cpu:', mlog.bold(intr.builtin['target_machine'].cpu_method([], {}))) |
| try: |
| if self.options.profile: |
| fname = os.path.join(self.build_dir, 'meson-private', 'profile-interpreter.log') |
| profile.runctx('intr.run()', globals(), locals(), filename=fname) |
| else: |
| intr.run() |
| except Exception as e: |
| mintro.write_meson_info_file(b, [e]) |
| raise |
| # Print all default option values that don't match the current value |
| for def_opt_name, def_opt_value, cur_opt_value in intr.get_non_matching_default_options(): |
| mlog.log('Option', mlog.bold(def_opt_name), 'is:', |
| mlog.bold('{}'.format(make_lower_case(cur_opt_value.printable_value()))), |
| '[default: {}]'.format(make_lower_case(def_opt_value))) |
| try: |
| dumpfile = os.path.join(env.get_scratch_dir(), 'build.dat') |
| # We would like to write coredata as late as possible since we use the existence of |
| # this file to check if we generated the build file successfully. Since coredata |
| # includes settings, the build files must depend on it and appear newer. However, due |
| # to various kernel caches, we cannot guarantee that any time in Python is exactly in |
| # sync with the time that gets applied to any files. Thus, we dump this file as late as |
| # possible, but before build files, and if any error occurs, delete it. |
| cdf = env.dump_coredata() |
| if self.options.profile: |
| fname = 'profile-{}-backend.log'.format(intr.backend.name) |
| fname = os.path.join(self.build_dir, 'meson-private', fname) |
| profile.runctx('intr.backend.generate()', globals(), locals(), filename=fname) |
| else: |
| intr.backend.generate() |
| build.save(b, dumpfile) |
| if env.first_invocation: |
| coredata.write_cmd_line_file(self.build_dir, self.options) |
| else: |
| coredata.update_cmd_line_file(self.build_dir, self.options) |
| |
| # Generate an IDE introspection file with the same syntax as the already existing API |
| if self.options.profile: |
| fname = os.path.join(self.build_dir, 'meson-private', 'profile-introspector.log') |
| profile.runctx('mintro.generate_introspection_file(b, intr.backend)', globals(), locals(), filename=fname) |
| else: |
| mintro.generate_introspection_file(b, intr.backend) |
| mintro.write_meson_info_file(b, [], True) |
| |
| # Post-conf scripts must be run after writing coredata or else introspection fails. |
| intr.backend.run_postconf_scripts() |
| except Exception as e: |
| mintro.write_meson_info_file(b, [e]) |
| if 'cdf' in locals(): |
| old_cdf = cdf + '.prev' |
| if os.path.exists(old_cdf): |
| os.replace(old_cdf, cdf) |
| else: |
| os.unlink(cdf) |
| raise |
| |
| def run(options) -> int: |
| coredata.parse_cmd_line_options(options) |
| app = MesonApp(options) |
| app.generate() |
| return 0 |
