| # 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 .. import build |
| from .. import mesonlib |
| from .. import mlog |
| from . import ModuleReturnValue |
| from . import ExtensionModule |
| |
| |
| 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 generate_pkgconfig_file(self, state, libraries, subdirs, name, description, |
| url, version, pcfile, pub_reqs, priv_reqs, |
| conflicts, priv_libs): |
| coredata = state.environment.get_coredata() |
| outdir = state.environment.scratch_dir |
| fname = os.path.join(outdir, pcfile) |
| with open(fname, 'w') as ofile: |
| ofile.write('prefix=%s\n' % coredata.get_builtin_option('prefix')) |
| # '${prefix}' is ignored if the second path is absolute (see |
| # 'os.path.join' for details) |
| ofile.write('libdir=%s\n' % os.path.join('${prefix}', coredata.get_builtin_option('libdir'))) |
| ofile.write('includedir=%s\n' % os.path.join('${prefix}', coredata.get_builtin_option('includedir'))) |
| ofile.write('\n') |
| ofile.write('Name: %s\n' % name) |
| if len(description) > 0: |
| ofile.write('Description: %s\n' % description) |
| if len(url) > 0: |
| ofile.write('URL: %s\n' % url) |
| ofile.write('Version: %s\n' % version) |
| if len(pub_reqs) > 0: |
| ofile.write('Requires: {}\n'.format(' '.join(pub_reqs))) |
| if len(priv_reqs) > 0: |
| ofile.write( |
| 'Requires.private: {}\n'.format(' '.join(priv_reqs))) |
| if len(conflicts) > 0: |
| ofile.write('Conflicts: {}\n'.format(' '.join(conflicts))) |
| |
| def generate_libs_flags(libs): |
| msg = 'Library target {0!r} has {1!r} set. Compilers ' \ |
| 'may not find it from its \'-l{2}\' linker flag in the ' \ |
| '{3!r} pkg-config file.' |
| for l in libs: |
| if isinstance(l, str): |
| yield l |
| else: |
| install_dir = l.get_custom_install_dir()[0] |
| if install_dir: |
| yield '-L${prefix}/%s ' % install_dir |
| else: |
| yield '-L${libdir}' |
| lname = self._get_lname(l, msg, pcfile) |
| # If using a custom suffix, the compiler may not be able to |
| # find the library |
| if l.name_suffix_set: |
| mlog.warning(msg.format(l.name, 'name_suffix', lname, pcfile)) |
| yield '-l%s' % lname |
| |
| if len(libraries) > 0: |
| ofile.write('Libs: {}\n'.format(' '.join(generate_libs_flags(libraries)))) |
| if len(priv_libs) > 0: |
| ofile.write('Libs.private: {}\n'.format(' '.join(generate_libs_flags(priv_libs)))) |
| ofile.write('Cflags:') |
| for h in subdirs: |
| if h == '.': |
| h = '' |
| ofile.write(' ') |
| ofile.write(os.path.join('-I${includedir}', h)) |
| ofile.write('\n') |
| |
| def process_libs(self, libs): |
| if not isinstance(libs, list): |
| libs = [libs] |
| processed_libs = [] |
| for l in libs: |
| if hasattr(l, 'held_object'): |
| l = l.held_object |
| if not isinstance(l, (build.SharedLibrary, build.StaticLibrary, str)): |
| raise mesonlib.MesonException('Library argument not a library object nor a string.') |
| processed_libs.append(l) |
| return processed_libs |
| |
| def generate(self, state, args, kwargs): |
| if len(args) > 0: |
| raise mesonlib.MesonException('Pkgconfig_gen takes no positional arguments.') |
| libs = self.process_libs(kwargs.get('libraries', [])) |
| priv_libs = self.process_libs(kwargs.get('libraries_private', [])) |
| subdirs = mesonlib.stringlistify(kwargs.get('subdirs', ['.'])) |
| version = kwargs.get('version', None) |
| if not isinstance(version, str): |
| raise mesonlib.MesonException('Version must be specified.') |
| name = kwargs.get('name', None) |
| 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', None) |
| 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.') |
| pub_reqs = mesonlib.stringlistify(kwargs.get('requires', [])) |
| priv_reqs = mesonlib.stringlistify(kwargs.get('requires_private', [])) |
| conflicts = mesonlib.stringlistify(kwargs.get('conflicts', [])) |
| pcfile = filebase + '.pc' |
| pkgroot = kwargs.get('install_dir', None) |
| 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, libs, subdirs, name, description, url, |
| version, pcfile, pub_reqs, priv_reqs, |
| conflicts, priv_libs) |
| res = build.Data(mesonlib.File(True, state.environment.get_scratch_dir(), pcfile), pkgroot) |
| return ModuleReturnValue(res, [res]) |
| |
| def initialize(): |
| return PkgConfigModule() |
