# 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 mlog from .. import build from ..mesonlib import MesonException, Popen_safe from ..dependencies import Qt4Dependency from . import ExtensionModule import xml.etree.ElementTree as ET from . import ModuleReturnValue class Qt4Module(ExtensionModule): tools_detected = False def _detect_tools(self, env, method): if self.tools_detected: return mlog.log('Detecting Qt4 tools') # FIXME: We currently require Qt4 to exist while importing the module. # We should make it gracefully degrade and not create any targets if # the import is marked as 'optional' (not implemented yet) kwargs = {'required': 'true', 'modules': 'Core', 'silent': 'true', 'method': method} qt4 = Qt4Dependency(env, kwargs) # Get all tools and then make sure that they are the right version self.moc, self.uic, self.rcc = qt4.compilers_detect() # Moc, uic and rcc write their version strings to stderr. # Moc and rcc return a non-zero result when doing so. # What kind of an idiot thought that was a good idea? if self.moc.found(): stdout, stderr = Popen_safe(self.moc.get_command() + ['-v'])[1:3] stdout = stdout.strip() stderr = stderr.strip() if 'Qt Meta' in stderr: moc_ver = stderr else: raise MesonException('Moc preprocessor is not for Qt 4. Output:\n%s\n%s' % (stdout, stderr)) mlog.log(' moc:', mlog.green('YES'), '(%s, %s)' % (self.moc.get_path(), moc_ver.split()[-1])) else: mlog.log(' moc:', mlog.red('NO')) if self.uic.found(): stdout, stderr = Popen_safe(self.uic.get_command() + ['-v'])[1:3] stdout = stdout.strip() stderr = stderr.strip() if 'version 4.' in stderr: uic_ver = stderr else: raise MesonException('Uic compiler is not for Qt4. Output:\n%s\n%s' % (stdout, stderr)) mlog.log(' uic:', mlog.green('YES'), '(%s, %s)' % (self.uic.get_path(), uic_ver.split()[-1])) else: mlog.log(' uic:', mlog.red('NO')) if self.rcc.found(): stdout, stderr = Popen_safe(self.rcc.get_command() + ['-v'])[1:3] stdout = stdout.strip() stderr = stderr.strip() if 'version 4.' in stderr: rcc_ver = stderr else: raise MesonException('Rcc compiler is not for Qt 4. Output:\n%s\n%s' % (stdout, stderr)) mlog.log(' rcc:', mlog.green('YES'), '(%s, %s)' % (self.rcc.get_path(), rcc_ver.split()[-1])) else: mlog.log(' rcc:', mlog.red('NO')) self.tools_detected = True def parse_qrc(self, state, fname): abspath = os.path.join(state.environment.source_dir, state.subdir, fname) relative_part = os.path.split(fname)[0] try: tree = ET.parse(abspath) root = tree.getroot() result = [] for child in root[0]: if child.tag != 'file': mlog.warning("malformed rcc file: ", os.path.join(state.subdir, fname)) break else: result.append(os.path.join(state.subdir, relative_part, child.text)) return result except Exception: return [] def preprocess(self, state, args, kwargs): rcc_files = kwargs.pop('qresources', []) if not isinstance(rcc_files, list): rcc_files = [rcc_files] ui_files = kwargs.pop('ui_files', []) if not isinstance(ui_files, list): ui_files = [ui_files] moc_headers = kwargs.pop('moc_headers', []) if not isinstance(moc_headers, list): moc_headers = [moc_headers] moc_sources = kwargs.pop('moc_sources', []) if not isinstance(moc_sources, list): moc_sources = [moc_sources] sources = kwargs.pop('sources', []) if not isinstance(sources, list): sources = [sources] sources += args[1:] method = kwargs.get('method', 'auto') self._detect_tools(state.environment, method) err_msg = "{0} sources specified and couldn't find {1}, " \ "please check your qt4 installation" if len(moc_headers) + len(moc_sources) > 0 and not self.moc.found(): raise MesonException(err_msg.format('MOC', 'moc-qt4')) if len(rcc_files) > 0: if not self.rcc.found(): raise MesonException(err_msg.format('RCC', 'rcc-qt4')) qrc_deps = [] for i in rcc_files: qrc_deps += self.parse_qrc(state, i) if len(args) > 0: name = args[0] else: basename = os.path.split(rcc_files[0])[1] name = 'qt4-' + basename.replace('.', '_') rcc_kwargs = {'input': rcc_files, 'output': name + '.cpp', 'command': [self.rcc, '-o', '@OUTPUT@', '@INPUT@'], 'depend_files': qrc_deps} res_target = build.CustomTarget(name, state.subdir, rcc_kwargs) sources.append(res_target) if len(ui_files) > 0: if not self.uic.found(): raise MesonException(err_msg.format('UIC', 'uic-qt4')) ui_kwargs = {'output': 'ui_@BASENAME@.h', 'arguments': ['-o', '@OUTPUT@', '@INPUT@']} ui_gen = build.Generator([self.uic], ui_kwargs) ui_output = ui_gen.process_files('Qt4 ui', ui_files, state) sources.append(ui_output) if len(moc_headers) > 0: moc_kwargs = {'output': 'moc_@BASENAME@.cpp', 'arguments': ['@INPUT@', '-o', '@OUTPUT@']} moc_gen = build.Generator([self.moc], moc_kwargs) moc_output = moc_gen.process_files('Qt4 moc header', moc_headers, state) sources.append(moc_output) if len(moc_sources) > 0: moc_kwargs = {'output': '@BASENAME@.moc', 'arguments': ['@INPUT@', '-o', '@OUTPUT@']} moc_gen = build.Generator([self.moc], moc_kwargs) moc_output = moc_gen.process_files('Qt4 moc source', moc_sources, state) sources.append(moc_output) return ModuleReturnValue(sources, sources) def initialize(): mlog.warning('rcc dependencies will not work properly until this upstream issue is fixed:', mlog.bold('https://bugreports.qt.io/browse/QTBUG-45460')) return Qt4Module()