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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 .. 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()
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