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- # Copyright 2014-2016 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 os
- from . import coredata, environment, mesonlib, build, mintro, mlog
- from .ast import AstIDGenerator
- def add_arguments(parser):
- coredata.register_builtin_arguments(parser)
- parser.add_argument('builddir', nargs='?', default='.')
- parser.add_argument('--clearcache', action='store_true', default=False,
- help='Clear cached state (e.g. found dependencies)')
- def make_lower_case(val):
- if isinstance(val, bool):
- return str(val).lower()
- elif isinstance(val, list):
- return [make_lower_case(i) for i in val]
- else:
- return str(val)
- class ConfException(mesonlib.MesonException):
- pass
- class Conf:
- def __init__(self, build_dir):
- self.build_dir = os.path.abspath(os.path.realpath(build_dir))
- if 'meson.build' in [os.path.basename(self.build_dir), self.build_dir]:
- self.build_dir = os.path.dirname(self.build_dir)
- self.build = None
- self.max_choices_line_length = 60
- self.name_col = []
- self.value_col = []
- self.choices_col = []
- self.descr_col = []
- self.has_choices = False
- self.all_subprojects = set()
- self.yielding_options = set()
- if os.path.isdir(os.path.join(self.build_dir, 'meson-private')):
- self.build = build.load(self.build_dir)
- self.source_dir = self.build.environment.get_source_dir()
- self.coredata = coredata.load(self.build_dir)
- self.default_values_only = False
- elif os.path.isfile(os.path.join(self.build_dir, environment.build_filename)):
- # Make sure that log entries in other parts of meson don't interfere with the JSON output
- mlog.disable()
- self.source_dir = os.path.abspath(os.path.realpath(self.build_dir))
- intr = mintro.IntrospectionInterpreter(self.source_dir, '', 'ninja', visitors = [AstIDGenerator()])
- intr.analyze()
- # Re-enable logging just in case
- mlog.enable()
- self.coredata = intr.coredata
- self.default_values_only = True
- else:
- raise ConfException('Directory {} is neither a Meson build directory nor a project source directory.'.format(build_dir))
- def clear_cache(self):
- self.coredata.deps.host.clear()
- self.coredata.deps.build.clear()
- def set_options(self, options):
- self.coredata.set_options(options)
- def save(self):
- # Do nothing when using introspection
- if self.default_values_only:
- return
- # Only called if something has changed so overwrite unconditionally.
- coredata.save(self.coredata, self.build_dir)
- # We don't write the build file because any changes to it
- # are erased when Meson is executed the next time, i.e. when
- # Ninja is run.
- def print_aligned(self):
- col_widths = (max([len(i) for i in self.name_col], default=0),
- max([len(i) for i in self.value_col], default=0),
- max([len(i) for i in self.choices_col], default=0))
- for line in zip(self.name_col, self.value_col, self.choices_col, self.descr_col):
- if self.has_choices:
- print('{0:{width[0]}} {1:{width[1]}} {2:{width[2]}} {3}'.format(*line, width=col_widths))
- else:
- print('{0:{width[0]}} {1:{width[1]}} {3}'.format(*line, width=col_widths))
- def split_options_per_subproject(self, options_iter):
- result = {}
- for k, o in options_iter:
- subproject = ''
- if ':' in k:
- subproject, optname = k.split(':')
- if o.yielding and optname in options:
- self.yielding_options.add(k)
- self.all_subprojects.add(subproject)
- result.setdefault(subproject, {})[k] = o
- return result
- def _add_line(self, name, value, choices, descr):
- self.name_col.append(' ' * self.print_margin + name)
- self.value_col.append(value)
- self.choices_col.append(choices)
- self.descr_col.append(descr)
- def add_option(self, name, descr, value, choices):
- if isinstance(value, list):
- value = '[{0}]'.format(', '.join(make_lower_case(value)))
- else:
- value = make_lower_case(value)
- if choices:
- self.has_choices = True
- if isinstance(choices, list):
- choices_list = make_lower_case(choices)
- current = '['
- while choices_list:
- i = choices_list.pop(0)
- if len(current) + len(i) >= self.max_choices_line_length:
- self._add_line(name, value, current + ',', descr)
- name = ''
- value = ''
- descr = ''
- current = ' '
- if len(current) > 1:
- current += ', '
- current += i
- choices = current + ']'
- else:
- choices = make_lower_case(choices)
- else:
- choices = ''
- self._add_line(name, value, choices, descr)
- def add_title(self, title):
- titles = {'descr': 'Description', 'value': 'Current Value', 'choices': 'Possible Values'}
- if self.default_values_only:
- titles['value'] = 'Default Value'
- self._add_line('', '', '', '')
- self._add_line(title, titles['value'], titles['choices'], titles['descr'])
- self._add_line('-' * len(title), '-' * len(titles['value']), '-' * len(titles['choices']), '-' * len(titles['descr']))
- def add_section(self, section):
- self.print_margin = 0
- self._add_line('', '', '', '')
- self._add_line(section + ':', '', '', '')
- self.print_margin = 2
- def print_options(self, title, options):
- if not options:
- return
- if title:
- self.add_title(title)
- for k, o in sorted(options.items()):
- printable_value = o.printable_value()
- if k in self.yielding_options:
- printable_value = '<inherited from main project>'
- self.add_option(k, o.description, printable_value, o.choices)
- def print_conf(self):
- def print_default_values_warning():
- mlog.warning('The source directory instead of the build directory was specified.')
- mlog.warning('Only the default values for the project are printed, and all command line parameters are ignored.')
- if self.default_values_only:
- print_default_values_warning()
- print('')
- print('Core properties:')
- print(' Source dir', self.source_dir)
- if not self.default_values_only:
- print(' Build dir ', self.build_dir)
- dir_option_names = ['bindir',
- 'datadir',
- 'includedir',
- 'infodir',
- 'libdir',
- 'libexecdir',
- 'localedir',
- 'localstatedir',
- 'mandir',
- 'prefix',
- 'sbindir',
- 'sharedstatedir',
- 'sysconfdir']
- test_option_names = ['errorlogs',
- 'stdsplit']
- core_option_names = [k for k in self.coredata.builtins if k not in dir_option_names + test_option_names]
- dir_options = {k: o for k, o in self.coredata.builtins.items() if k in dir_option_names}
- test_options = {k: o for k, o in self.coredata.builtins.items() if k in test_option_names}
- core_options = {k: o for k, o in self.coredata.builtins.items() if k in core_option_names}
- def insert_build_prefix(k):
- idx = k.find(':')
- if idx < 0:
- return 'build.' + k
- return k[:idx + 1] + 'build.' + k[idx + 1:]
- core_options = self.split_options_per_subproject(core_options.items())
- host_compiler_options = self.split_options_per_subproject(
- self.coredata.flatten_lang_iterator(
- self.coredata.compiler_options.host.items()))
- build_compiler_options = self.split_options_per_subproject(
- self.coredata.flatten_lang_iterator(
- (insert_build_prefix(k), o)
- for k, o in self.coredata.compiler_options.build.items()))
- project_options = self.split_options_per_subproject(self.coredata.user_options.items())
- show_build_options = self.default_values_only or self.build.environment.is_cross_build()
- self.add_section('Main project options')
- self.print_options('Core options', core_options[''])
- self.print_options('', self.coredata.builtins_per_machine.host)
- if show_build_options:
- self.print_options('', {insert_build_prefix(k): o for k, o in self.coredata.builtins_per_machine.build.items()})
- self.print_options('Backend options', self.coredata.backend_options)
- self.print_options('Base options', self.coredata.base_options)
- self.print_options('Compiler options', host_compiler_options.get('', {}))
- if show_build_options:
- self.print_options('', build_compiler_options.get('', {}))
- self.print_options('Directories', dir_options)
- self.print_options('Testing options', test_options)
- self.print_options('Project options', project_options.get('', {}))
- for subproject in sorted(self.all_subprojects):
- if subproject == '':
- continue
- self.add_section('Subproject ' + subproject)
- if subproject in core_options:
- self.print_options('Core options', core_options[subproject])
- if subproject in host_compiler_options:
- self.print_options('Compiler options', host_compiler_options[subproject])
- if subproject in build_compiler_options and show_build_options:
- self.print_options('', build_compiler_options[subproject])
- if subproject in project_options:
- self.print_options('Project options', project_options[subproject])
- self.print_aligned()
- # Print the warning twice so that the user shouldn't be able to miss it
- if self.default_values_only:
- print('')
- print_default_values_warning()
- def run(options):
- coredata.parse_cmd_line_options(options)
- builddir = os.path.abspath(os.path.realpath(options.builddir))
- c = None
- try:
- c = Conf(builddir)
- if c.default_values_only:
- c.print_conf()
- return 0
- save = False
- if len(options.cmd_line_options) > 0:
- c.set_options(options.cmd_line_options)
- coredata.update_cmd_line_file(builddir, options)
- save = True
- elif options.clearcache:
- c.clear_cache()
- save = True
- else:
- c.print_conf()
- if save:
- c.save()
- mintro.update_build_options(c.coredata, c.build.environment.info_dir)
- mintro.write_meson_info_file(c.build, [])
- except ConfException as e:
- print('Meson configurator encountered an error:')
- if c is not None and c.build is not None:
- mintro.write_meson_info_file(c.build, [e])
- raise e
- return 0
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