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