Added module for Qt4 support.

1 files changed, 155 insertions, 0 deletions

diff --git a/modules/qt4.py b/modules/qt4.py
new file mode 100644
index 0000000..ddaca39
--- /dev/null
+++ b/modules/qt4.py
@@ -0,0 +1,155 @@
+# 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 dependencies, mlog
+import os, subprocess
+import build
+from coredata import MesonException
+import xml.etree.ElementTree as ET
+
+class Qt5Module():
+    
+    def __init__(self):
+        mlog.log('Detecting Qt tools.')
+        # The binaries have different names on different
+        # distros. Joy.
+        self.moc = dependencies.ExternalProgram('moc', silent=True)
+        if not self.moc.found():
+            self.moc = dependencies.ExternalProgram('moc-qt4', silent=True)
+        self.uic = dependencies.ExternalProgram('uic', silent=True)
+        if not self.uic.found():
+            self.uic = dependencies.ExternalProgram('uic-qt4', silent=True)
+        self.rcc = dependencies.ExternalProgram('rcc', silent=True)
+        if not self.rcc.found():
+            self.rcc = dependencies.ExternalProgram('rcc-qt4', silent=True)
+        # 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():
+            mp = subprocess.Popen(self.moc.get_command() + ['-v'],
+                                  stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+            (stdout, stderr) = mp.communicate()
+            stdout = stdout.decode().strip()
+            stderr = stderr.decode().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)' % \
+                     (' '.join(self.moc.fullpath), moc_ver.split()[-1]))
+        else:
+            mlog.log(' moc:', mlog.red('NO'))
+        if self.uic.found():
+            up = subprocess.Popen(self.uic.get_command() + ['-v'],
+                                  stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+            (stdout, stderr) = up.communicate()
+            stdout = stdout.decode().strip()
+            stderr = stderr.decode().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)' % \
+                     (' '.join(self.uic.fullpath), uic_ver.split()[-1]))
+        else:
+            mlog.log(' uic:', mlog.red('NO'))
+        if self.rcc.found():
+            rp = subprocess.Popen(self.rcc.get_command() + ['-v'],
+                                  stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+            (stdout, stderr) = rp.communicate()
+            stdout = stdout.decode().strip()
+            stderr = stderr.decode().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)'\
+                     % (' '.join(self.rcc.fullpath), rcc_ver.split()[-1]))
+        else:
+            mlog.log(' rcc:', mlog.red('NO'))
+
+    def parse_qrc(self, state, fname):
+        abspath = os.path.join(state.environment.source_dir, state.subdir, fname)
+        try:
+            tree = ET.parse(abspath)
+            root = tree.getroot()
+            result = []
+            for child in root[0]:
+                if child.tag != 'file':
+                    mlog.log("Warning, malformed rcc file: ", os.path.join(state.subdir, fname))
+                    break
+                else:
+                    result.append(os.path.join(state.subdir, 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]
+        srctmp = kwargs.pop('sources', [])
+        if not isinstance(srctmp, list):
+            srctmp = [srctmp]
+        sources = args[1:] + srctmp
+        if len(rcc_files) > 0:
+            rcc_kwargs = {'output' : '@BASENAME@.cpp',
+                          'arguments' : ['@INPUT@', '-o', '@OUTPUT@']}
+            rcc_gen = build.Generator([self.rcc], rcc_kwargs)
+            rcc_output = build.GeneratedList(rcc_gen)
+            qrc_deps = []
+            for i in rcc_files:
+                qrc_deps += self.parse_qrc(state, i)
+            rcc_output.extra_depends = qrc_deps
+            [rcc_output.add_file(os.path.join(state.subdir, a)) for a in rcc_files]
+            sources.append(rcc_output)
+        if len(ui_files) > 0:
+            ui_kwargs = {'output' : 'ui_@BASENAME@.h',
+                         'arguments' : ['-o', '@OUTPUT@', '@INPUT@']}
+            ui_gen = build.Generator([self.uic], ui_kwargs)
+            ui_output = build.GeneratedList(ui_gen)
+            [ui_output.add_file(os.path.join(state.subdir, a)) for a in ui_files]
+            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 = build.GeneratedList(moc_gen)
+            [moc_output.add_file(os.path.join(state.subdir, a)) for a in moc_headers]
+            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 = build.GeneratedList(moc_gen)
+            [moc_output.add_file(os.path.join(state.subdir, a)) for a in moc_sources]
+            sources.append(moc_output)
+        return sources
+
+def initialize():
+    mlog.log('Warning, rcc dependencies will not work properly until this upstream issue is fixed:',
+             mlog.bold('https://bugreports.qt.io/browse/QTBUG-45460'))
+    return Qt5Module()