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185 lines
8.5 KiB
185 lines
8.5 KiB
# Copyright 2015 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 build |
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from .. import mesonlib |
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from .. import mlog |
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from . import ModuleReturnValue |
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from . import ExtensionModule |
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from . import permittedKwargs |
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class PkgConfigModule(ExtensionModule): |
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def _get_lname(self, l, msg, pcfile): |
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# Nothing special |
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if not l.name_prefix_set: |
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return l.name |
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# Sometimes people want the library to start with 'lib' everywhere, |
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# which is achieved by setting name_prefix to '' and the target name to |
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# 'libfoo'. In that case, try to get the pkg-config '-lfoo' arg correct. |
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if l.prefix == '' and l.name.startswith('lib'): |
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return l.name[3:] |
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# If the library is imported via an import library which is always |
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# named after the target name, '-lfoo' is correct. |
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if l.import_filename: |
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return l.name |
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# In other cases, we can't guarantee that the compiler will be able to |
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# find the library via '-lfoo', so tell the user that. |
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mlog.warning(msg.format(l.name, 'name_prefix', l.name, pcfile)) |
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return l.name |
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def generate_pkgconfig_file(self, state, libraries, subdirs, name, description, |
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url, version, pcfile, pub_reqs, priv_reqs, |
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conflicts, priv_libs, variables): |
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coredata = state.environment.get_coredata() |
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outdir = state.environment.scratch_dir |
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fname = os.path.join(outdir, pcfile) |
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with open(fname, 'w') as ofile: |
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ofile.write('prefix=%s\n' % coredata.get_builtin_option('prefix')) |
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# '${prefix}' is ignored if the second path is absolute (see |
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# 'os.path.join' for details) |
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ofile.write('libdir=%s\n' % os.path.join('${prefix}', coredata.get_builtin_option('libdir'))) |
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ofile.write('includedir=%s\n' % os.path.join('${prefix}', coredata.get_builtin_option('includedir'))) |
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for k, v in variables: |
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ofile.write('%s=%s\n' % (k, v)) |
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ofile.write('\n') |
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ofile.write('Name: %s\n' % name) |
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if len(description) > 0: |
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ofile.write('Description: %s\n' % description) |
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if len(url) > 0: |
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ofile.write('URL: %s\n' % url) |
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ofile.write('Version: %s\n' % version) |
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if len(pub_reqs) > 0: |
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ofile.write('Requires: {}\n'.format(' '.join(pub_reqs))) |
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if len(priv_reqs) > 0: |
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ofile.write( |
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'Requires.private: {}\n'.format(' '.join(priv_reqs))) |
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if len(conflicts) > 0: |
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ofile.write('Conflicts: {}\n'.format(' '.join(conflicts))) |
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def generate_libs_flags(libs): |
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msg = 'Library target {0!r} has {1!r} set. Compilers ' \ |
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'may not find it from its \'-l{2}\' linker flag in the ' \ |
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'{3!r} pkg-config file.' |
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for l in libs: |
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if isinstance(l, str): |
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yield l |
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else: |
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install_dir = l.get_custom_install_dir()[0] |
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if install_dir: |
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yield '-L${prefix}/%s ' % install_dir |
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else: |
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yield '-L${libdir}' |
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lname = self._get_lname(l, msg, pcfile) |
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# If using a custom suffix, the compiler may not be able to |
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# find the library |
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if l.name_suffix_set: |
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mlog.warning(msg.format(l.name, 'name_suffix', lname, pcfile)) |
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yield '-l%s' % lname |
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if len(libraries) > 0: |
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ofile.write('Libs: {}\n'.format(' '.join(generate_libs_flags(libraries)))) |
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if len(priv_libs) > 0: |
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ofile.write('Libs.private: {}\n'.format(' '.join(generate_libs_flags(priv_libs)))) |
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ofile.write('Cflags:') |
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for h in subdirs: |
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if h == '.': |
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h = '' |
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ofile.write(' ') |
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ofile.write(os.path.join('-I${includedir}', h)) |
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ofile.write('\n') |
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def process_libs(self, libs): |
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if not isinstance(libs, list): |
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libs = [libs] |
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processed_libs = [] |
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for l in libs: |
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if hasattr(l, 'held_object'): |
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l = l.held_object |
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if not isinstance(l, (build.SharedLibrary, build.StaticLibrary, str)): |
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raise mesonlib.MesonException('Library argument not a library object nor a string.') |
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processed_libs.append(l) |
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return processed_libs |
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@permittedKwargs({'libraries', 'version', 'name', 'description', 'filebase', |
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'subdirs', 'requires', 'requires_private', 'libraries_private', |
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'install_dir', 'variables'}) |
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def generate(self, state, args, kwargs): |
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if len(args) > 0: |
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raise mesonlib.MesonException('Pkgconfig_gen takes no positional arguments.') |
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libs = self.process_libs(kwargs.get('libraries', [])) |
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priv_libs = self.process_libs(kwargs.get('libraries_private', [])) |
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subdirs = mesonlib.stringlistify(kwargs.get('subdirs', ['.'])) |
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version = kwargs.get('version', None) |
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if not isinstance(version, str): |
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raise mesonlib.MesonException('Version must be specified.') |
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name = kwargs.get('name', None) |
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if not isinstance(name, str): |
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raise mesonlib.MesonException('Name not specified.') |
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filebase = kwargs.get('filebase', name) |
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if not isinstance(filebase, str): |
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raise mesonlib.MesonException('Filebase must be a string.') |
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description = kwargs.get('description', None) |
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if not isinstance(description, str): |
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raise mesonlib.MesonException('Description is not a string.') |
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url = kwargs.get('url', '') |
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if not isinstance(url, str): |
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raise mesonlib.MesonException('URL is not a string.') |
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pub_reqs = mesonlib.stringlistify(kwargs.get('requires', [])) |
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priv_reqs = mesonlib.stringlistify(kwargs.get('requires_private', [])) |
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conflicts = mesonlib.stringlistify(kwargs.get('conflicts', [])) |
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def parse_variable_list(stringlist): |
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reserved = ['prefix', 'libdir', 'includedir'] |
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variables = [] |
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for var in stringlist: |
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# foo=bar=baz is ('foo', 'bar=baz') |
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l = var.split('=', 1) |
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if len(l) < 2: |
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raise mesonlib.MesonException('Variables must be in \'name=value\' format') |
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name, value = l[0].strip(), l[1].strip() |
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if not name or not value: |
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raise mesonlib.MesonException('Variables must be in \'name=value\' format') |
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# Variable names must not contain whitespaces |
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if any(c.isspace() for c in name): |
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raise mesonlib.MesonException('Invalid whitespace in assignment "{}"'.format(var)) |
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if name in reserved: |
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raise mesonlib.MesonException('Variable "{}" is reserved'.format(name)) |
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variables.append((name, value)) |
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return variables |
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variables = parse_variable_list(mesonlib.stringlistify(kwargs.get('variables', []))) |
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pcfile = filebase + '.pc' |
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pkgroot = kwargs.get('install_dir', None) |
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if pkgroot is None: |
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pkgroot = os.path.join(state.environment.coredata.get_builtin_option('libdir'), 'pkgconfig') |
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if not isinstance(pkgroot, str): |
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raise mesonlib.MesonException('Install_dir must be a string.') |
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self.generate_pkgconfig_file(state, libs, subdirs, name, description, url, |
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version, pcfile, pub_reqs, priv_reqs, |
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conflicts, priv_libs, variables) |
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res = build.Data(mesonlib.File(True, state.environment.get_scratch_dir(), pcfile), pkgroot) |
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return ModuleReturnValue(res, [res]) |
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def initialize(): |
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return PkgConfigModule()
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