# 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, extract_as_list from ..dependencies import Qt4Dependency, Qt5Dependency import xml.etree.ElementTree as ET from . import ModuleReturnValue, get_include_args from ..interpreterbase import permittedKwargs _QT_DEPS_LUT = { 4: Qt4Dependency, 5: Qt5Dependency } class QtBaseModule: tools_detected = False def __init__(self, qt_version=5): self.qt_version = qt_version def _detect_tools(self, env, method): if self.tools_detected: return mlog.log('Detecting Qt{version} tools'.format(version=self.qt_version)) # FIXME: We currently require QtX 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} qt = _QT_DEPS_LUT[self.qt_version](env, kwargs) # Get all tools and then make sure that they are the right version self.moc, self.uic, self.rcc = qt.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? for compiler, compiler_name in ((self.moc, "Moc"), (self.uic, "Uic"), (self.rcc, "Rcc")): if compiler.found(): stdout, stderr = Popen_safe(compiler.get_command() + ['-v'])[1:3] stdout = stdout.strip() stderr = stderr.strip() if 'Qt {}'.format(self.qt_version) in stderr: compiler_ver = stderr elif 'version {}.'.format(self.qt_version) in stderr: compiler_ver = stderr elif ' {}.'.format(self.qt_version) in stdout: compiler_ver = stdout else: raise MesonException('{name} preprocessor is not for Qt {version}. Output:\n{stdo}\n{stderr}'.format( name=compiler_name, version=self.qt_version, stdo=stdout, stderr=stderr)) mlog.log(' {}:'.format(compiler_name.lower()), mlog.green('YES'), '({path}, {version})'.format( path=self.moc.get_path(), version=compiler_ver.split()[-1])) else: mlog.log(' {}:'.format(compiler_name.lower()), 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 [] @permittedKwargs({'moc_headers', 'moc_sources', 'include_directories', 'ui_files', 'qresources', 'method'}) def preprocess(self, state, args, kwargs): rcc_files, ui_files, moc_headers, moc_sources, sources, include_directories \ = extract_as_list(kwargs, 'qresources', 'ui_files', 'moc_headers', 'moc_sources', 'sources', 'include_directories', pop = True) 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 qt{2} installation" if len(moc_headers) + len(moc_sources) > 0 and not self.moc.found(): raise MesonException(err_msg.format('MOC', 'moc-qt{}'.format(self.qt_version), self.qt_version)) if len(rcc_files) > 0: if not self.rcc.found(): raise MesonException(err_msg.format('RCC', 'rcc-qt{}'.format(self.qt_version), self.qt_version)) 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 = 'qt' + str(self.qt_version) + '-' + 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-qt' + self.qt_version)) ui_kwargs = {'output': 'ui_@BASENAME@.h', 'arguments': ['-o', '@OUTPUT@', '@INPUT@']} ui_gen = build.Generator([self.uic], ui_kwargs) ui_output = ui_gen.process_files('Qt{} ui'.format(self.qt_version), ui_files, state) sources.append(ui_output) inc = get_include_args(include_dirs=include_directories) if len(moc_headers) > 0: moc_kwargs = {'output': 'moc_@BASENAME@.cpp', 'arguments': inc + ['@INPUT@', '-o', '@OUTPUT@']} moc_gen = build.Generator([self.moc], moc_kwargs) moc_output = moc_gen.process_files('Qt{} moc header'.format(self.qt_version), 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('Qt{} moc source'.format(self.qt_version), moc_sources, state) sources.append(moc_output) return ModuleReturnValue(sources, sources)