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353 lines
15 KiB
353 lines
15 KiB
# Copyright 2012-2017 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 pickle, os, uuid |
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from pathlib import PurePath |
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from collections import OrderedDict |
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from .mesonlib import MesonException, commonpath |
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from .mesonlib import default_libdir, default_libexecdir, default_prefix |
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import ast |
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version = '0.41.0.dev1' |
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backendlist = ['ninja', 'vs', 'vs2010', 'vs2015', 'vs2017', 'xcode'] |
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class UserOption: |
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def __init__(self, name, description, choices): |
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super().__init__() |
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self.name = name |
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self.choices = choices |
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self.description = description |
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def parse_string(self, valuestring): |
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return valuestring |
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# Check that the input is a valid value and return the |
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# "cleaned" or "native" version. For example the Boolean |
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# option could take the string "true" and return True. |
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def validate_value(self, value): |
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raise RuntimeError('Derived option class did not override validate_value.') |
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class UserStringOption(UserOption): |
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def __init__(self, name, description, value, choices=None): |
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super().__init__(name, description, choices) |
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self.set_value(value) |
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def validate(self, value): |
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if not isinstance(value, str): |
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raise MesonException('Value "%s" for string option "%s" is not a string.' % (str(value), self.name)) |
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def set_value(self, newvalue): |
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self.validate(newvalue) |
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self.value = newvalue |
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def validate_value(self, value): |
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self.validate(value) |
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return value |
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class UserBooleanOption(UserOption): |
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def __init__(self, name, description, value): |
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super().__init__(name, description, [True, False]) |
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self.set_value(value) |
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def tobool(self, thing): |
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if isinstance(thing, bool): |
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return thing |
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if thing.lower() == 'true': |
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return True |
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if thing.lower() == 'false': |
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return False |
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raise MesonException('Value %s is not boolean (true or false).' % thing) |
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def set_value(self, newvalue): |
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self.value = self.tobool(newvalue) |
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def parse_string(self, valuestring): |
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if valuestring == 'false': |
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return False |
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if valuestring == 'true': |
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return True |
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raise MesonException('Value "%s" for boolean option "%s" is not a boolean.' % (valuestring, self.name)) |
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def __bool__(self): |
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return self.value |
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def validate_value(self, value): |
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return self.tobool(value) |
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class UserComboOption(UserOption): |
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def __init__(self, name, description, choices, value): |
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super().__init__(name, description, choices) |
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if not isinstance(self.choices, list): |
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raise MesonException('Combo choices must be an array.') |
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for i in self.choices: |
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if not isinstance(i, str): |
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raise MesonException('Combo choice elements must be strings.') |
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self.set_value(value) |
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def set_value(self, newvalue): |
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if newvalue not in self.choices: |
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optionsstring = ', '.join(['"%s"' % (item,) for item in self.choices]) |
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raise MesonException('Value "%s" for combo option "%s" is not one of the choices. Possible choices are: %s.' % (newvalue, self.name, optionsstring)) |
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self.value = newvalue |
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def validate_value(self, value): |
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if value not in self.choices: |
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raise MesonException('Value %s not one of accepted values.' % value) |
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return value |
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class UserStringArrayOption(UserOption): |
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def __init__(self, name, description, value, **kwargs): |
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super().__init__(name, description, kwargs.get('choices', [])) |
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self.set_value(value) |
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def validate(self, value): |
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if isinstance(value, str): |
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if not value.startswith('['): |
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raise MesonException('Valuestring does not define an array: ' + value) |
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newvalue = ast.literal_eval(value) |
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else: |
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newvalue = value |
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if not isinstance(newvalue, list): |
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raise MesonException('"{0}" should be a string array, but it is not'.format(str(newvalue))) |
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for i in newvalue: |
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if not isinstance(i, str): |
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raise MesonException('String array element "{0}" is not a string.'.format(str(newvalue))) |
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return newvalue |
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def set_value(self, newvalue): |
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self.value = self.validate(newvalue) |
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def validate_value(self, value): |
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self.validate(value) |
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return value |
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# This class contains all data that must persist over multiple |
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# invocations of Meson. It is roughly the same thing as |
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# cmakecache. |
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class CoreData: |
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def __init__(self, options): |
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self.guid = str(uuid.uuid4()).upper() |
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self.test_guid = str(uuid.uuid4()).upper() |
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self.regen_guid = str(uuid.uuid4()).upper() |
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self.target_guids = {} |
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self.version = version |
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self.init_builtins(options) |
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self.user_options = {} |
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self.compiler_options = {} |
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self.base_options = {} |
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# These external_*args, are set via env vars CFLAGS, LDFLAGS, etc |
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# but only when not cross-compiling. |
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self.external_preprocess_args = {} # CPPFLAGS only |
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self.external_args = {} # CPPFLAGS + CFLAGS |
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self.external_link_args = {} # CFLAGS + LDFLAGS (with MSVC: only LDFLAGS) |
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if options.cross_file is not None: |
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self.cross_file = os.path.join(os.getcwd(), options.cross_file) |
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else: |
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self.cross_file = None |
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self.wrap_mode = options.wrap_mode |
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self.compilers = OrderedDict() |
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self.cross_compilers = OrderedDict() |
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self.deps = OrderedDict() |
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self.modules = {} |
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# Only to print a warning if it changes between Meson invocations. |
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self.pkgconf_envvar = os.environ.get('PKG_CONFIG_PATH', '') |
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def sanitize_prefix(self, prefix): |
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if not os.path.isabs(prefix): |
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raise MesonException('prefix value {!r} must be an absolute path' |
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''.format(prefix)) |
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if prefix.endswith('/') or prefix.endswith('\\'): |
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# On Windows we need to preserve the trailing slash if the |
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# string is of type 'C:\' because 'C:' is not an absolute path. |
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if len(prefix) == 3 and prefix[1] == ':': |
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pass |
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else: |
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prefix = prefix[:-1] |
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return prefix |
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def sanitize_dir_option_value(self, prefix, option, value): |
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''' |
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If the option is an installation directory option and the value is an |
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absolute path, check that it resides within prefix and return the value |
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as a path relative to the prefix. |
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This way everyone can do f.ex, get_option('libdir') and be sure to get |
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the library directory relative to prefix. |
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''' |
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if option.endswith('dir') and os.path.isabs(value) and \ |
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option not in builtin_dir_noprefix_options: |
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# Value must be a subdir of the prefix |
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# commonpath will always return a path in the native format, so we |
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# must use pathlib.PurePath to do the same conversion before |
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# comparing. |
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if commonpath([value, prefix]) != str(PurePath(prefix)): |
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m = 'The value of the {!r} option is {!r} which must be a ' \ |
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'subdir of the prefix {!r}.\nNote that if you pass a ' \ |
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'relative path, it is assumed to be a subdir of prefix.' |
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raise MesonException(m.format(option, value, prefix)) |
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# Convert path to be relative to prefix |
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skip = len(prefix) + 1 |
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value = value[skip:] |
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return value |
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def init_builtins(self, options): |
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self.builtins = {} |
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# Sanitize prefix |
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options.prefix = self.sanitize_prefix(options.prefix) |
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# Initialize other builtin options |
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for key in get_builtin_options(): |
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if hasattr(options, key): |
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value = getattr(options, key) |
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value = self.sanitize_dir_option_value(options.prefix, key, value) |
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setattr(options, key, value) |
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else: |
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value = get_builtin_option_default(key) |
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args = [key] + builtin_options[key][1:-1] + [value] |
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self.builtins[key] = builtin_options[key][0](*args) |
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def get_builtin_option(self, optname): |
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if optname in self.builtins: |
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return self.builtins[optname].value |
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raise RuntimeError('Tried to get unknown builtin option %s.' % optname) |
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def set_builtin_option(self, optname, value): |
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if optname == 'prefix': |
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value = self.sanitize_prefix(value) |
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elif optname in self.builtins: |
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prefix = self.builtins['prefix'].value |
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value = self.sanitize_dir_option_value(prefix, optname, value) |
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else: |
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raise RuntimeError('Tried to set unknown builtin option %s.' % optname) |
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self.builtins[optname].set_value(value) |
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def validate_option_value(self, option_name, override_value): |
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for opts in (self.builtins, self.base_options, self.compiler_options, self.user_options): |
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if option_name in opts: |
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opt = opts[option_name] |
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return opt.validate_value(override_value) |
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raise MesonException('Tried to validate unknown option %s.' % option_name) |
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def load(filename): |
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load_fail_msg = 'Coredata file {!r} is corrupted. Try with a fresh build tree.'.format(filename) |
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try: |
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with open(filename, 'rb') as f: |
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obj = pickle.load(f) |
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except pickle.UnpicklingError: |
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raise MesonException(load_fail_msg) |
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if not isinstance(obj, CoreData): |
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raise MesonException(load_fail_msg) |
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if obj.version != version: |
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raise MesonException('Build directory has been generated with Meson version %s, which is incompatible with current version %s.\nPlease delete this build directory AND create a new one.' % |
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(obj.version, version)) |
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return obj |
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def save(obj, filename): |
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if obj.version != version: |
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raise MesonException('Fatal version mismatch corruption.') |
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with open(filename, 'wb') as f: |
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pickle.dump(obj, f) |
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def get_builtin_options(): |
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return list(builtin_options.keys()) |
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def is_builtin_option(optname): |
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return optname in get_builtin_options() |
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def get_builtin_option_choices(optname): |
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if is_builtin_option(optname): |
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if builtin_options[optname][0] == UserStringOption: |
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return None |
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elif builtin_options[optname][0] == UserBooleanOption: |
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return [True, False] |
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else: |
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return builtin_options[optname][2] |
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else: |
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raise RuntimeError('Tried to get the supported values for an unknown builtin option \'%s\'.' % optname) |
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def get_builtin_option_description(optname): |
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if is_builtin_option(optname): |
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return builtin_options[optname][1] |
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else: |
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raise RuntimeError('Tried to get the description for an unknown builtin option \'%s\'.' % optname) |
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def get_builtin_option_default(optname): |
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if is_builtin_option(optname): |
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o = builtin_options[optname] |
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if o[0] == UserComboOption: |
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return o[3] |
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return o[2] |
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else: |
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raise RuntimeError('Tried to get the default value for an unknown builtin option \'%s\'.' % optname) |
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builtin_options = { |
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'buildtype': [UserComboOption, 'Build type to use.', ['plain', 'debug', 'debugoptimized', 'release', 'minsize'], 'debug'], |
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'strip': [UserBooleanOption, 'Strip targets on install.', False], |
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'unity': [UserComboOption, 'Unity build.', ['on', 'off', 'subprojects'], 'off'], |
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'prefix': [UserStringOption, 'Installation prefix.', default_prefix()], |
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'libdir': [UserStringOption, 'Library directory.', default_libdir()], |
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'libexecdir': [UserStringOption, 'Library executable directory.', default_libexecdir()], |
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'bindir': [UserStringOption, 'Executable directory.', 'bin'], |
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'sbindir': [UserStringOption, 'System executable directory.', 'sbin'], |
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'includedir': [UserStringOption, 'Header file directory.', 'include'], |
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'datadir': [UserStringOption, 'Data file directory.', 'share'], |
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'mandir': [UserStringOption, 'Manual page directory.', 'share/man'], |
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'infodir': [UserStringOption, 'Info page directory.', 'share/info'], |
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'localedir': [UserStringOption, 'Locale data directory.', 'share/locale'], |
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# sysconfdir, localstatedir and sharedstatedir are a bit special. These defaults to ${prefix}/etc, |
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# ${prefix}/var and ${prefix}/com but nobody uses that. Instead they always set it |
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# manually to /etc, /var and /var/lib. This default values is thus pointless and not really used |
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# but we set it to this for consistency with other systems. |
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# |
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# Projects installing to sysconfdir, localstatedir or sharedstatedir probably want |
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# to set the following in project(): |
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# |
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# default_options : ['sysconfdir=/etc', 'localstatedir=/var', 'sharedstatedir=/var/lib'] |
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'sysconfdir': [UserStringOption, 'Sysconf data directory.', 'etc'], |
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'localstatedir': [UserStringOption, 'Localstate data directory.', 'var'], |
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'sharedstatedir': [UserStringOption, 'Architecture-independent data directory.', 'com'], |
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'werror': [UserBooleanOption, 'Treat warnings as errors.', False], |
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'warning_level': [UserComboOption, 'Compiler warning level to use.', ['1', '2', '3'], '1'], |
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'layout': [UserComboOption, 'Build directory layout.', ['mirror', 'flat'], 'mirror'], |
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'default_library': [UserComboOption, 'Default library type.', ['shared', 'static'], 'shared'], |
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'backend': [UserComboOption, 'Backend to use.', backendlist, 'ninja'], |
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'stdsplit': [UserBooleanOption, 'Split stdout and stderr in test logs.', True], |
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'errorlogs': [UserBooleanOption, "Whether to print the logs from failing tests.", True], |
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} |
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# Installation directories that can reside in a path outside of the prefix |
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builtin_dir_noprefix_options = {'sysconfdir', 'localstatedir', 'sharedstatedir'} |
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forbidden_target_names = {'clean': None, |
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'clean-ctlist': None, |
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'clean-gcno': None, |
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'clean-gcda': None, |
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'coverage': None, |
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'coverage-text': None, |
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'coverage-xml': None, |
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'coverage-html': None, |
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'phony': None, |
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'PHONY': None, |
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'all': None, |
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'test': None, |
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'benchmark': None, |
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'install': None, |
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'uninstall': None, |
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'build.ninja': None, |
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'scan-build': None, |
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'reconfigure': None, |
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'dist': None, |
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'distcheck': None, |
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}
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