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- # Copyright 2015 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 pathlib import PurePath
- from .. import build
- from .. import dependencies
- from .. import mesonlib
- from .. import mlog
- from . import ModuleReturnValue
- from . import ExtensionModule
- from ..interpreterbase import permittedKwargs, FeatureNew, FeatureNewKwargs
- class DependenciesHelper:
- def __init__(self, name):
- self.name = name
- self.pub_libs = []
- self.pub_reqs = []
- self.priv_libs = []
- self.priv_reqs = []
- self.cflags = []
- self.version_reqs = {}
- def add_pub_libs(self, libs):
- libs, reqs, cflags = self._process_libs(libs, True)
- self.pub_libs += libs
- self.pub_reqs += reqs
- self.cflags += cflags
- def add_priv_libs(self, libs):
- libs, reqs, _ = self._process_libs(libs, False)
- self.priv_libs += libs
- self.priv_reqs += reqs
- def add_pub_reqs(self, reqs):
- self.pub_reqs += self._process_reqs(reqs)
- def add_priv_reqs(self, reqs):
- self.priv_reqs += self._process_reqs(reqs)
- def _process_reqs(self, reqs):
- '''Returns string names of requirements'''
- processed_reqs = []
- for obj in mesonlib.listify(reqs, unholder=True):
- if hasattr(obj, 'generated_pc'):
- processed_reqs.append(obj.generated_pc)
- elif hasattr(obj, 'pcdep'):
- pcdeps = mesonlib.listify(obj.pcdep)
- for d in pcdeps:
- processed_reqs.append(d.name)
- self.add_version_reqs(d.name, obj.version_reqs)
- elif isinstance(obj, dependencies.PkgConfigDependency):
- if obj.found():
- processed_reqs.append(obj.name)
- self.add_version_reqs(obj.name, obj.version_reqs)
- elif isinstance(obj, str):
- name, version_req = self.split_version_req(obj)
- processed_reqs.append(name)
- self.add_version_reqs(name, version_req)
- elif isinstance(obj, dependencies.Dependency) and not obj.found():
- pass
- else:
- raise mesonlib.MesonException('requires argument not a string, '
- 'library with pkgconfig-generated file '
- 'or pkgconfig-dependency object, '
- 'got {!r}'.format(obj))
- return processed_reqs
- def add_cflags(self, cflags):
- self.cflags += mesonlib.stringlistify(cflags)
- def _process_libs(self, libs, public):
- libs = mesonlib.listify(libs, unholder=True)
- processed_libs = []
- processed_reqs = []
- processed_cflags = []
- for obj in libs:
- shared_library_only = getattr(obj, 'shared_library_only', False)
- if hasattr(obj, 'pcdep'):
- pcdeps = mesonlib.listify(obj.pcdep)
- for d in pcdeps:
- processed_reqs.append(d.name)
- self.add_version_reqs(d.name, obj.version_reqs)
- elif hasattr(obj, 'generated_pc'):
- processed_reqs.append(obj.generated_pc)
- elif isinstance(obj, dependencies.PkgConfigDependency):
- if obj.found():
- processed_reqs.append(obj.name)
- self.add_version_reqs(obj.name, obj.version_reqs)
- elif isinstance(obj, dependencies.ThreadDependency):
- processed_libs += obj.get_compiler().thread_link_flags(obj.env)
- processed_cflags += obj.get_compiler().thread_flags(obj.env)
- elif isinstance(obj, dependencies.Dependency):
- if obj.found():
- processed_libs += obj.get_link_args()
- processed_cflags += obj.get_compile_args()
- elif isinstance(obj, build.SharedLibrary) and shared_library_only:
- # Do not pull dependencies for shared libraries because they are
- # only required for static linking. Adding private requires has
- # the side effect of exposing their cflags, which is the
- # intended behaviour of pkg-config but force Debian to add more
- # than needed build deps.
- # See https://bugs.freedesktop.org/show_bug.cgi?id=105572
- processed_libs.append(obj)
- if public:
- if not hasattr(obj, 'generated_pc'):
- obj.generated_pc = self.name
- elif isinstance(obj, (build.SharedLibrary, build.StaticLibrary)):
- processed_libs.append(obj)
- if public:
- if not hasattr(obj, 'generated_pc'):
- obj.generated_pc = self.name
- if isinstance(obj, build.StaticLibrary) and public:
- self.add_pub_libs(obj.get_dependencies(internal=False))
- self.add_pub_libs(obj.get_external_deps())
- else:
- self.add_priv_libs(obj.get_dependencies(internal=False))
- self.add_priv_libs(obj.get_external_deps())
- elif isinstance(obj, str):
- processed_libs.append(obj)
- else:
- raise mesonlib.MesonException('library argument not a string, library or dependency object.')
- return processed_libs, processed_reqs, processed_cflags
- def add_version_reqs(self, name, version_reqs):
- if version_reqs:
- if name not in self.version_reqs:
- self.version_reqs[name] = set()
- # Note that pkg-config is picky about whitespace.
- # 'foo > 1.2' is ok but 'foo>1.2' is not.
- # foo, bar' is ok, but 'foo,bar' is not.
- new_vreqs = [s for s in mesonlib.stringlistify(version_reqs)]
- self.version_reqs[name].update(new_vreqs)
- def split_version_req(self, s):
- for op in ['>=', '<=', '!=', '==', '=', '>', '<']:
- pos = s.find(op)
- if pos > 0:
- return s[0:pos].strip(), s[pos:].strip()
- return s, None
- def format_vreq(self, vreq):
- # vreq are '>=1.0' and pkgconfig wants '>= 1.0'
- for op in ['>=', '<=', '!=', '==', '=', '>', '<']:
- if vreq.startswith(op):
- return op + ' ' + vreq[len(op):]
- return vreq
- def format_reqs(self, reqs):
- result = []
- for name in reqs:
- vreqs = self.version_reqs.get(name, None)
- if vreqs:
- result += [name + ' ' + self.format_vreq(vreq) for vreq in vreqs]
- else:
- result += [name]
- return ', '.join(result)
- def remove_dups(self):
- def _fn(xs, libs=False):
- # Remove duplicates whilst preserving original order
- result = []
- for x in xs:
- # Don't de-dup unknown strings to avoid messing up arguments like:
- # ['-framework', 'CoreAudio', '-framework', 'CoreMedia']
- if x not in result or (libs and (isinstance(x, str) and not x.endswith(('-l', '-L')))):
- result.append(x)
- return result
- self.pub_libs = _fn(self.pub_libs, True)
- self.pub_reqs = _fn(self.pub_reqs)
- self.priv_libs = _fn(self.priv_libs, True)
- self.priv_reqs = _fn(self.priv_reqs)
- self.cflags = _fn(self.cflags)
- # Remove from private libs/reqs if they are in public already
- self.priv_libs = [i for i in self.priv_libs if i not in self.pub_libs]
- self.priv_reqs = [i for i in self.priv_reqs if i not in self.pub_reqs]
- class PkgConfigModule(ExtensionModule):
- def _get_lname(self, l, msg, pcfile):
- # Nothing special
- if not l.name_prefix_set:
- return l.name
- # Sometimes people want the library to start with 'lib' everywhere,
- # which is achieved by setting name_prefix to '' and the target name to
- # 'libfoo'. In that case, try to get the pkg-config '-lfoo' arg correct.
- if l.prefix == '' and l.name.startswith('lib'):
- return l.name[3:]
- # If the library is imported via an import library which is always
- # named after the target name, '-lfoo' is correct.
- if l.import_filename:
- return l.name
- # In other cases, we can't guarantee that the compiler will be able to
- # find the library via '-lfoo', so tell the user that.
- mlog.warning(msg.format(l.name, 'name_prefix', l.name, pcfile))
- return l.name
- def _escape(self, value):
- '''
- We cannot use shlex.quote because it quotes with ' and " which does not
- work with pkg-config and pkgconf at all.
- '''
- # We should always write out paths with / because pkg-config requires
- # spaces to be quoted with \ and that messes up on Windows:
- # https://bugs.freedesktop.org/show_bug.cgi?id=103203
- if isinstance(value, PurePath):
- value = value.as_posix()
- return value.replace(' ', '\ ')
- def _make_relative(self, prefix, subdir):
- if isinstance(prefix, PurePath):
- prefix = prefix.as_posix()
- if isinstance(subdir, PurePath):
- subdir = subdir.as_posix()
- if subdir.startswith(prefix):
- subdir = subdir.replace(prefix, '')
- return subdir
- def generate_pkgconfig_file(self, state, deps, subdirs, name, description,
- url, version, pcfile, conflicts, variables):
- deps.remove_dups()
- coredata = state.environment.get_coredata()
- outdir = state.environment.scratch_dir
- fname = os.path.join(outdir, pcfile)
- prefix = PurePath(coredata.get_builtin_option('prefix'))
- # These always return paths relative to prefix
- libdir = PurePath(coredata.get_builtin_option('libdir'))
- incdir = PurePath(coredata.get_builtin_option('includedir'))
- with open(fname, 'w') as ofile:
- ofile.write('prefix={}\n'.format(self._escape(prefix)))
- ofile.write('libdir={}\n'.format(self._escape('${prefix}' / libdir)))
- ofile.write('includedir={}\n'.format(self._escape('${prefix}' / incdir)))
- if variables:
- ofile.write('\n')
- for k, v in variables:
- ofile.write('{}={}\n'.format(k, self._escape(v)))
- ofile.write('\n')
- ofile.write('Name: %s\n' % name)
- if len(description) > 0:
- ofile.write('Description: %s\n' % description)
- if len(url) > 0:
- ofile.write('URL: %s\n' % url)
- ofile.write('Version: %s\n' % version)
- reqs_str = deps.format_reqs(deps.pub_reqs)
- if len(reqs_str) > 0:
- ofile.write('Requires: {}\n'.format(reqs_str))
- reqs_str = deps.format_reqs(deps.priv_reqs)
- if len(reqs_str) > 0:
- ofile.write('Requires.private: {}\n'.format(reqs_str))
- if len(conflicts) > 0:
- ofile.write('Conflicts: {}\n'.format(' '.join(conflicts)))
- def generate_libs_flags(libs):
- msg = 'Library target {0!r} has {1!r} set. Compilers ' \
- 'may not find it from its \'-l{2}\' linker flag in the ' \
- '{3!r} pkg-config file.'
- Lflags = []
- for l in libs:
- if isinstance(l, str):
- yield l
- else:
- install_dir = l.get_custom_install_dir()[0]
- if install_dir is False:
- continue
- if isinstance(install_dir, str):
- Lflag = '-L${prefix}/%s ' % self._escape(self._make_relative(prefix, install_dir))
- else: # install_dir is True
- Lflag = '-L${libdir}'
- if Lflag not in Lflags:
- Lflags.append(Lflag)
- yield Lflag
- lname = self._get_lname(l, msg, pcfile)
- # If using a custom suffix, the compiler may not be able to
- # find the library
- if l.name_suffix_set:
- mlog.warning(msg.format(l.name, 'name_suffix', lname, pcfile))
- yield '-l%s' % lname
- if len(deps.pub_libs) > 0:
- ofile.write('Libs: {}\n'.format(' '.join(generate_libs_flags(deps.pub_libs))))
- if len(deps.priv_libs) > 0:
- ofile.write('Libs.private: {}\n'.format(' '.join(generate_libs_flags(deps.priv_libs))))
- ofile.write('Cflags:')
- for h in subdirs:
- ofile.write(' ')
- if h == '.':
- ofile.write('-I${includedir}')
- else:
- ofile.write(self._escape(PurePath('-I${includedir}') / h))
- for f in deps.cflags:
- ofile.write(' ')
- ofile.write(self._escape(f))
- ofile.write('\n')
- @FeatureNewKwargs('pkgconfig.generate', '0.42.0', ['extra_cflags'])
- @FeatureNewKwargs('pkgconfig.generate', '0.41.0', ['variables'])
- @permittedKwargs({'libraries', 'version', 'name', 'description', 'filebase',
- 'subdirs', 'requires', 'requires_private', 'libraries_private',
- 'install_dir', 'extra_cflags', 'variables', 'url', 'd_module_versions'})
- def generate(self, state, args, kwargs):
- if 'variables' in kwargs:
- FeatureNew('custom pkgconfig variables', '0.41.0').use()
- default_version = state.project_version['version']
- default_install_dir = None
- default_description = None
- default_name = None
- mainlib = None
- if len(args) == 1:
- FeatureNew('pkgconfig.generate optional positional argument', '0.46.0').use()
- mainlib = getattr(args[0], 'held_object', args[0])
- if not isinstance(mainlib, (build.StaticLibrary, build.SharedLibrary)):
- raise mesonlib.MesonException('Pkgconfig_gen first positional argument must be a library object')
- default_name = mainlib.name
- default_description = state.project_name + ': ' + mainlib.name
- install_dir = mainlib.get_custom_install_dir()[0]
- if isinstance(install_dir, str):
- default_install_dir = os.path.join(install_dir, 'pkgconfig')
- elif len(args) > 1:
- raise mesonlib.MesonException('Too many positional arguments passed to Pkgconfig_gen.')
- subdirs = mesonlib.stringlistify(kwargs.get('subdirs', ['.']))
- version = kwargs.get('version', default_version)
- if not isinstance(version, str):
- raise mesonlib.MesonException('Version must be specified.')
- name = kwargs.get('name', default_name)
- if not isinstance(name, str):
- raise mesonlib.MesonException('Name not specified.')
- filebase = kwargs.get('filebase', name)
- if not isinstance(filebase, str):
- raise mesonlib.MesonException('Filebase must be a string.')
- description = kwargs.get('description', default_description)
- if not isinstance(description, str):
- raise mesonlib.MesonException('Description is not a string.')
- url = kwargs.get('url', '')
- if not isinstance(url, str):
- raise mesonlib.MesonException('URL is not a string.')
- conflicts = mesonlib.stringlistify(kwargs.get('conflicts', []))
- deps = DependenciesHelper(filebase)
- if mainlib:
- deps.add_pub_libs(mainlib)
- deps.add_pub_libs(kwargs.get('libraries', []))
- deps.add_priv_libs(kwargs.get('libraries_private', []))
- deps.add_pub_reqs(kwargs.get('requires', []))
- deps.add_priv_reqs(kwargs.get('requires_private', []))
- deps.add_cflags(kwargs.get('extra_cflags', []))
- dversions = kwargs.get('d_module_versions', None)
- if dversions:
- compiler = state.environment.coredata.compilers.get('d')
- if compiler:
- deps.add_cflags(compiler.get_feature_args({'versions': dversions}, None))
- def parse_variable_list(stringlist):
- reserved = ['prefix', 'libdir', 'includedir']
- variables = []
- for var in stringlist:
- # foo=bar=baz is ('foo', 'bar=baz')
- l = var.split('=', 1)
- if len(l) < 2:
- raise mesonlib.MesonException('Invalid variable "{}". Variables must be in \'name=value\' format'.format(var))
- name, value = l[0].strip(), l[1].strip()
- if not name or not value:
- raise mesonlib.MesonException('Invalid variable "{}". Variables must be in \'name=value\' format'.format(var))
- # Variable names must not contain whitespaces
- if any(c.isspace() for c in name):
- raise mesonlib.MesonException('Invalid whitespace in assignment "{}"'.format(var))
- if name in reserved:
- raise mesonlib.MesonException('Variable "{}" is reserved'.format(name))
- variables.append((name, value))
- return variables
- variables = parse_variable_list(mesonlib.stringlistify(kwargs.get('variables', [])))
- pcfile = filebase + '.pc'
- pkgroot = kwargs.get('install_dir', default_install_dir)
- if pkgroot is None:
- pkgroot = os.path.join(state.environment.coredata.get_builtin_option('libdir'), 'pkgconfig')
- if not isinstance(pkgroot, str):
- raise mesonlib.MesonException('Install_dir must be a string.')
- self.generate_pkgconfig_file(state, deps, subdirs, name, description, url,
- version, pcfile, conflicts, variables)
- res = build.Data(mesonlib.File(True, state.environment.get_scratch_dir(), pcfile), pkgroot)
- return ModuleReturnValue(res, [res])
- def initialize(*args, **kwargs):
- return PkgConfigModule(*args, **kwargs)
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