337 lines
13 KiB
Python
337 lines
13 KiB
Python
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"""SCons.Tool.qt
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Tool-specific initialization for Qt.
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There normally shouldn't be any need to import this module directly.
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It will usually be imported through the generic SCons.Tool.Tool()
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selection method.
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"""
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#
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# Copyright (c) 2001 - 2016 The SCons Foundation
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
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# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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__revision__ = "src/engine/SCons/Tool/qt.py rel_2.5.1:3735:9dc6cee5c168 2016/11/03 14:02:02 bdbaddog"
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import os.path
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import re
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import SCons.Action
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import SCons.Builder
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import SCons.Defaults
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import SCons.Scanner
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import SCons.Tool
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import SCons.Util
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class ToolQtWarning(SCons.Warnings.Warning):
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pass
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class GeneratedMocFileNotIncluded(ToolQtWarning):
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pass
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class QtdirNotFound(ToolQtWarning):
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pass
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SCons.Warnings.enableWarningClass(ToolQtWarning)
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header_extensions = [".h", ".hxx", ".hpp", ".hh"]
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if SCons.Util.case_sensitive_suffixes('.h', '.H'):
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header_extensions.append('.H')
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cplusplus = __import__('c++', globals(), locals(), [])
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cxx_suffixes = cplusplus.CXXSuffixes
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def checkMocIncluded(target, source, env):
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moc = target[0]
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cpp = source[0]
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# looks like cpp.includes is cleared before the build stage :-(
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# not really sure about the path transformations (moc.cwd? cpp.cwd?) :-/
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path = SCons.Defaults.CScan.path(env, moc.cwd)
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includes = SCons.Defaults.CScan(cpp, env, path)
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if not moc in includes:
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SCons.Warnings.warn(
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GeneratedMocFileNotIncluded,
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"Generated moc file '%s' is not included by '%s'" %
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(str(moc), str(cpp)))
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def find_file(filename, paths, node_factory):
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for dir in paths:
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node = node_factory(filename, dir)
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if node.rexists():
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return node
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return None
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class _Automoc(object):
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"""
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Callable class, which works as an emitter for Programs, SharedLibraries and
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StaticLibraries.
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"""
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def __init__(self, objBuilderName):
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self.objBuilderName = objBuilderName
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def __call__(self, target, source, env):
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"""
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Smart autoscan function. Gets the list of objects for the Program
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or Lib. Adds objects and builders for the special qt files.
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"""
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try:
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if int(env.subst('$QT_AUTOSCAN')) == 0:
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return target, source
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except ValueError:
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pass
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try:
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debug = int(env.subst('$QT_DEBUG'))
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except ValueError:
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debug = 0
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# some shortcuts used in the scanner
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splitext = SCons.Util.splitext
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objBuilder = getattr(env, self.objBuilderName)
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# some regular expressions:
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# Q_OBJECT detection
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q_object_search = re.compile(r'[^A-Za-z0-9]Q_OBJECT[^A-Za-z0-9]')
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# cxx and c comment 'eater'
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#comment = re.compile(r'(//.*)|(/\*(([^*])|(\*[^/]))*\*/)')
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# CW: something must be wrong with the regexp. See also bug #998222
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# CURRENTLY THERE IS NO TEST CASE FOR THAT
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# The following is kind of hacky to get builders working properly (FIXME)
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objBuilderEnv = objBuilder.env
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objBuilder.env = env
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mocBuilderEnv = env.Moc.env
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env.Moc.env = env
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# make a deep copy for the result; MocH objects will be appended
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out_sources = source[:]
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for obj in source:
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if not obj.has_builder():
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# binary obj file provided
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if debug:
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print "scons: qt: '%s' seems to be a binary. Discarded." % str(obj)
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continue
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cpp = obj.sources[0]
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if not splitext(str(cpp))[1] in cxx_suffixes:
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if debug:
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print "scons: qt: '%s' is no cxx file. Discarded." % str(cpp)
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# c or fortran source
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continue
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#cpp_contents = comment.sub('', cpp.get_text_contents())
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cpp_contents = cpp.get_text_contents()
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h=None
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for h_ext in header_extensions:
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# try to find the header file in the corresponding source
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# directory
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hname = splitext(cpp.name)[0] + h_ext
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h = find_file(hname, (cpp.get_dir(),), env.File)
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if h:
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if debug:
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print "scons: qt: Scanning '%s' (header of '%s')" % (str(h), str(cpp))
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#h_contents = comment.sub('', h.get_text_contents())
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h_contents = h.get_text_contents()
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break
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if not h and debug:
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print "scons: qt: no header for '%s'." % (str(cpp))
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if h and q_object_search.search(h_contents):
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# h file with the Q_OBJECT macro found -> add moc_cpp
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moc_cpp = env.Moc(h)
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moc_o = objBuilder(moc_cpp)
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out_sources.append(moc_o)
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#moc_cpp.target_scanner = SCons.Defaults.CScan
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if debug:
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print "scons: qt: found Q_OBJECT macro in '%s', moc'ing to '%s'" % (str(h), str(moc_cpp))
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if cpp and q_object_search.search(cpp_contents):
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# cpp file with Q_OBJECT macro found -> add moc
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# (to be included in cpp)
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moc = env.Moc(cpp)
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env.Ignore(moc, moc)
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if debug:
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print "scons: qt: found Q_OBJECT macro in '%s', moc'ing to '%s'" % (str(cpp), str(moc))
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#moc.source_scanner = SCons.Defaults.CScan
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# restore the original env attributes (FIXME)
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objBuilder.env = objBuilderEnv
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env.Moc.env = mocBuilderEnv
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return (target, out_sources)
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AutomocShared = _Automoc('SharedObject')
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AutomocStatic = _Automoc('StaticObject')
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def _detect(env):
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"""Not really safe, but fast method to detect the QT library"""
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QTDIR = None
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if not QTDIR:
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QTDIR = env.get('QTDIR',None)
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if not QTDIR:
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QTDIR = os.environ.get('QTDIR',None)
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if not QTDIR:
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moc = env.WhereIs('moc')
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if moc:
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QTDIR = os.path.dirname(os.path.dirname(moc))
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SCons.Warnings.warn(
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QtdirNotFound,
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"Could not detect qt, using moc executable as a hint (QTDIR=%s)" % QTDIR)
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else:
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QTDIR = None
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SCons.Warnings.warn(
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QtdirNotFound,
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"Could not detect qt, using empty QTDIR")
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return QTDIR
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def uicEmitter(target, source, env):
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adjustixes = SCons.Util.adjustixes
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bs = SCons.Util.splitext(str(source[0].name))[0]
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bs = os.path.join(str(target[0].get_dir()),bs)
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# first target (header) is automatically added by builder
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if len(target) < 2:
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# second target is implementation
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target.append(adjustixes(bs,
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env.subst('$QT_UICIMPLPREFIX'),
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env.subst('$QT_UICIMPLSUFFIX')))
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if len(target) < 3:
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# third target is moc file
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target.append(adjustixes(bs,
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env.subst('$QT_MOCHPREFIX'),
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env.subst('$QT_MOCHSUFFIX')))
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return target, source
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def uicScannerFunc(node, env, path):
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lookout = []
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lookout.extend(env['CPPPATH'])
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lookout.append(str(node.rfile().dir))
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includes = re.findall("<include.*?>(.*?)</include>", node.get_text_contents())
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result = []
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for incFile in includes:
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dep = env.FindFile(incFile,lookout)
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if dep:
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result.append(dep)
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return result
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uicScanner = SCons.Scanner.Base(uicScannerFunc,
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name = "UicScanner",
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node_class = SCons.Node.FS.File,
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node_factory = SCons.Node.FS.File,
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recursive = 0)
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def generate(env):
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"""Add Builders and construction variables for qt to an Environment."""
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CLVar = SCons.Util.CLVar
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Action = SCons.Action.Action
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Builder = SCons.Builder.Builder
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env.SetDefault(QTDIR = _detect(env),
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QT_BINPATH = os.path.join('$QTDIR', 'bin'),
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QT_CPPPATH = os.path.join('$QTDIR', 'include'),
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QT_LIBPATH = os.path.join('$QTDIR', 'lib'),
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QT_MOC = os.path.join('$QT_BINPATH','moc'),
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QT_UIC = os.path.join('$QT_BINPATH','uic'),
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QT_LIB = 'qt', # may be set to qt-mt
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QT_AUTOSCAN = 1, # scan for moc'able sources
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# Some QT specific flags. I don't expect someone wants to
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# manipulate those ...
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QT_UICIMPLFLAGS = CLVar(''),
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QT_UICDECLFLAGS = CLVar(''),
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QT_MOCFROMHFLAGS = CLVar(''),
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QT_MOCFROMCXXFLAGS = CLVar('-i'),
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# suffixes/prefixes for the headers / sources to generate
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QT_UICDECLPREFIX = '',
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QT_UICDECLSUFFIX = '.h',
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QT_UICIMPLPREFIX = 'uic_',
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QT_UICIMPLSUFFIX = '$CXXFILESUFFIX',
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QT_MOCHPREFIX = 'moc_',
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QT_MOCHSUFFIX = '$CXXFILESUFFIX',
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QT_MOCCXXPREFIX = '',
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QT_MOCCXXSUFFIX = '.moc',
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QT_UISUFFIX = '.ui',
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# Commands for the qt support ...
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# command to generate header, implementation and moc-file
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# from a .ui file
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QT_UICCOM = [
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CLVar('$QT_UIC $QT_UICDECLFLAGS -o ${TARGETS[0]} $SOURCE'),
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CLVar('$QT_UIC $QT_UICIMPLFLAGS -impl ${TARGETS[0].file} '
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'-o ${TARGETS[1]} $SOURCE'),
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CLVar('$QT_MOC $QT_MOCFROMHFLAGS -o ${TARGETS[2]} ${TARGETS[0]}')],
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# command to generate meta object information for a class
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# declarated in a header
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QT_MOCFROMHCOM = (
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'$QT_MOC $QT_MOCFROMHFLAGS -o ${TARGETS[0]} $SOURCE'),
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# command to generate meta object information for a class
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# declarated in a cpp file
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QT_MOCFROMCXXCOM = [
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CLVar('$QT_MOC $QT_MOCFROMCXXFLAGS -o ${TARGETS[0]} $SOURCE'),
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Action(checkMocIncluded,None)])
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# ... and the corresponding builders
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uicBld = Builder(action=SCons.Action.Action('$QT_UICCOM', '$QT_UICCOMSTR'),
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emitter=uicEmitter,
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src_suffix='$QT_UISUFFIX',
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suffix='$QT_UICDECLSUFFIX',
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prefix='$QT_UICDECLPREFIX',
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source_scanner=uicScanner)
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mocBld = Builder(action={}, prefix={}, suffix={})
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for h in header_extensions:
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act = SCons.Action.Action('$QT_MOCFROMHCOM', '$QT_MOCFROMHCOMSTR')
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mocBld.add_action(h, act)
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mocBld.prefix[h] = '$QT_MOCHPREFIX'
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mocBld.suffix[h] = '$QT_MOCHSUFFIX'
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for cxx in cxx_suffixes:
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act = SCons.Action.Action('$QT_MOCFROMCXXCOM', '$QT_MOCFROMCXXCOMSTR')
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mocBld.add_action(cxx, act)
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mocBld.prefix[cxx] = '$QT_MOCCXXPREFIX'
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mocBld.suffix[cxx] = '$QT_MOCCXXSUFFIX'
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# register the builders
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env['BUILDERS']['Uic'] = uicBld
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env['BUILDERS']['Moc'] = mocBld
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static_obj, shared_obj = SCons.Tool.createObjBuilders(env)
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static_obj.add_src_builder('Uic')
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shared_obj.add_src_builder('Uic')
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# We use the emitters of Program / StaticLibrary / SharedLibrary
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# to scan for moc'able files
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# We can't refer to the builders directly, we have to fetch them
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# as Environment attributes because that sets them up to be called
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# correctly later by our emitter.
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env.AppendUnique(PROGEMITTER =[AutomocStatic],
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SHLIBEMITTER=[AutomocShared],
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LDMODULEEMITTER=[AutomocShared],
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LIBEMITTER =[AutomocStatic],
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# Of course, we need to link against the qt libraries
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CPPPATH=["$QT_CPPPATH"],
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LIBPATH=["$QT_LIBPATH"],
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LIBS=['$QT_LIB'])
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def exists(env):
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return _detect(env)
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# Local Variables:
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# tab-width:4
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# indent-tabs-mode:nil
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# End:
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# vim: set expandtab tabstop=4 shiftwidth=4:
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