pandemonium_engine/SCSCons/Tool/qt.py

372 lines
14 KiB
Python

# MIT License
#
# Copyright The SCons Foundation
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
"""Tool-specific initialization for Qt.
There normally shouldn't be any need to import this module directly.
It will usually be imported through the generic SCons.Tool.Tool()
selection method.
"""
import os.path
import re
import SCons.Action
import SCons.Builder
import SCons.Defaults
import SCons.Scanner
import SCons.Tool
import SCons.Util
import SCons.Tool.cxx
import SCons.Warnings
cplusplus = SCons.Tool.cxx
class ToolQtWarning(SCons.Warnings.SConsWarning):
pass
class GeneratedMocFileNotIncluded(ToolQtWarning):
pass
class QtdirNotFound(ToolQtWarning):
pass
SCons.Warnings.enableWarningClass(ToolQtWarning)
header_extensions = [".h", ".hxx", ".hpp", ".hh"]
if SCons.Util.case_sensitive_suffixes('.h', '.H'):
header_extensions.append('.H')
cxx_suffixes = cplusplus.CXXSuffixes
def find_platform_specific_qt_paths():
"""
find non-standard QT paths
If the platform does not put QT tools in standard search paths,
the path is expected to be set using QTDIR. SCons violates
the normal rule of not pulling from the user's environment
in this case. However, some test cases try to validate what
happens when QTDIR is unset, so we need to try to make a guess.
:return: a guess at a path
"""
# qt_bin_dirs = []
qt_bin_dir = None
if os.path.isfile('/etc/redhat-release'):
with open('/etc/redhat-release','r') as rr:
lines = rr.readlines()
distro = lines[0].split()[0]
if distro == 'CentOS':
# Centos installs QT under /usr/{lib,lib64}/qt{4,5,-3.3}/bin
# so we need to handle this differently
# qt_bin_dirs = glob.glob('/usr/lib64/qt*/bin')
# TODO: all current Fedoras do the same, need to look deeper here.
qt_bin_dir = '/usr/lib64/qt-3.3/bin'
return qt_bin_dir
QT_BIN_DIR = find_platform_specific_qt_paths()
def checkMocIncluded(target, source, env):
moc = target[0]
cpp = source[0]
# looks like cpp.includes is cleared before the build stage :-(
# not really sure about the path transformations (moc.cwd? cpp.cwd?) :-/
path = SCons.Defaults.CScan.path(env, moc.cwd)
includes = SCons.Defaults.CScan(cpp, env, path)
if moc not in includes:
SCons.Warnings.warn(
GeneratedMocFileNotIncluded,
"Generated moc file '%s' is not included by '%s'" %
(str(moc), str(cpp)))
def find_file(filename, paths, node_factory):
for dir in paths:
node = node_factory(filename, dir)
if node.rexists():
return node
return None
class _Automoc:
"""
Callable class, which works as an emitter for Programs, SharedLibraries and
StaticLibraries.
"""
def __init__(self, objBuilderName):
self.objBuilderName = objBuilderName
def __call__(self, target, source, env):
"""
Smart autoscan function. Gets the list of objects for the Program
or Lib. Adds objects and builders for the special qt files.
"""
try:
if int(env.subst('$QT_AUTOSCAN')) == 0:
return target, source
except ValueError:
pass
try:
debug = int(env.subst('$QT_DEBUG'))
except ValueError:
debug = 0
# some shortcuts used in the scanner
splitext = SCons.Util.splitext
objBuilder = getattr(env, self.objBuilderName)
# some regular expressions:
# Q_OBJECT detection
q_object_search = re.compile(r'[^A-Za-z0-9]Q_OBJECT[^A-Za-z0-9]')
# cxx and c comment 'eater'
#comment = re.compile(r'(//.*)|(/\*(([^*])|(\*[^/]))*\*/)')
# CW: something must be wrong with the regexp. See also bug #998222
# CURRENTLY THERE IS NO TEST CASE FOR THAT
# The following is kind of hacky to get builders working properly (FIXME)
objBuilderEnv = objBuilder.env
objBuilder.env = env
mocBuilderEnv = env.Moc.env
env.Moc.env = env
# make a deep copy for the result; MocH objects will be appended
out_sources = source[:]
for obj in source:
if not obj.has_builder():
# binary obj file provided
if debug:
print("scons: qt: '%s' seems to be a binary. Discarded." % str(obj))
continue
cpp = obj.sources[0]
if not splitext(str(cpp))[1] in cxx_suffixes:
if debug:
print("scons: qt: '%s' is no cxx file. Discarded." % str(cpp))
# c or fortran source
continue
#cpp_contents = comment.sub('', cpp.get_text_contents())
if debug:
print("scons: qt: Getting contents of %s" % cpp)
cpp_contents = cpp.get_text_contents()
h=None
for h_ext in header_extensions:
# try to find the header file in the corresponding source
# directory
hname = splitext(cpp.name)[0] + h_ext
h = find_file(hname, (cpp.get_dir(),), env.File)
if h:
if debug:
print("scons: qt: Scanning '%s' (header of '%s')" % (str(h), str(cpp)))
#h_contents = comment.sub('', h.get_text_contents())
h_contents = h.get_text_contents()
break
if not h and debug:
print("scons: qt: no header for '%s'." % (str(cpp)))
if h and q_object_search.search(h_contents):
# h file with the Q_OBJECT macro found -> add moc_cpp
moc_cpp = env.Moc(h)
moc_o = objBuilder(moc_cpp)
out_sources.append(moc_o)
#moc_cpp.target_scanner = SCons.Defaults.CScan
if debug:
print("scons: qt: found Q_OBJECT macro in '%s', moc'ing to '%s'" % (str(h), str(moc_cpp)))
if cpp and q_object_search.search(cpp_contents):
# cpp file with Q_OBJECT macro found -> add moc
# (to be included in cpp)
moc = env.Moc(cpp)
env.Ignore(moc, moc)
if debug:
print("scons: qt: found Q_OBJECT macro in '%s', moc'ing to '%s'" % (str(cpp), str(moc)))
#moc.source_scanner = SCons.Defaults.CScan
# restore the original env attributes (FIXME)
objBuilder.env = objBuilderEnv
env.Moc.env = mocBuilderEnv
return (target, out_sources)
AutomocShared = _Automoc('SharedObject')
AutomocStatic = _Automoc('StaticObject')
def _detect(env):
"""Not really safe, but fast method to detect the QT library"""
QTDIR = env.get('QTDIR',None)
if not QTDIR:
QTDIR = os.environ.get('QTDIR',None)
if not QTDIR:
moc = env.WhereIs('moc') or env.WhereIs('moc',QT_BIN_DIR)
if moc:
QTDIR = os.path.dirname(os.path.dirname(moc))
SCons.Warnings.warn(
QtdirNotFound,
"Could not detect qt, using moc executable as a hint (QTDIR=%s)" % QTDIR)
else:
QTDIR = None
SCons.Warnings.warn(
QtdirNotFound,
"Could not detect qt, using empty QTDIR")
return QTDIR
def uicEmitter(target, source, env):
adjustixes = SCons.Util.adjustixes
bs = SCons.Util.splitext(str(source[0].name))[0]
bs = os.path.join(str(target[0].get_dir()),bs)
# first target (header) is automatically added by builder
if len(target) < 2:
# second target is implementation
target.append(adjustixes(bs,
env.subst('$QT_UICIMPLPREFIX'),
env.subst('$QT_UICIMPLSUFFIX')))
if len(target) < 3:
# third target is moc file
target.append(adjustixes(bs,
env.subst('$QT_MOCHPREFIX'),
env.subst('$QT_MOCHSUFFIX')))
return target, source
def uicScannerFunc(node, env, path):
lookout = []
lookout.extend(env['CPPPATH'])
lookout.append(str(node.rfile().dir))
includes = re.findall("<include.*?>(.*?)</include>", node.get_text_contents())
result = []
for incFile in includes:
dep = env.FindFile(incFile,lookout)
if dep:
result.append(dep)
return result
uicScanner = SCons.Scanner.ScannerBase(uicScannerFunc,
name = "UicScanner",
node_class = SCons.Node.FS.File,
node_factory = SCons.Node.FS.File,
recursive = 0)
def generate(env):
"""Add Builders and construction variables for qt to an Environment."""
CLVar = SCons.Util.CLVar
Action = SCons.Action.Action
Builder = SCons.Builder.Builder
SCons.Warnings.warn(
SCons.Warnings.ToolQtDeprecatedWarning, "Tool module for Qt version 3 is deprecated"
)
env.SetDefault(QTDIR = _detect(env),
QT_BINPATH = os.path.join('$QTDIR', 'bin'),
QT_CPPPATH = os.path.join('$QTDIR', 'include'),
QT_LIBPATH = os.path.join('$QTDIR', 'lib'),
QT_MOC = os.path.join('$QT_BINPATH','moc'),
QT_UIC = os.path.join('$QT_BINPATH','uic'),
QT_LIB = 'qt', # may be set to qt-mt
QT_AUTOSCAN = 1, # scan for moc'able sources
# Some QT specific flags. I don't expect someone wants to
# manipulate those ...
QT_UICIMPLFLAGS = CLVar(''),
QT_UICDECLFLAGS = CLVar(''),
QT_MOCFROMHFLAGS = CLVar(''),
QT_MOCFROMCXXFLAGS = CLVar('-i'),
# suffixes/prefixes for the headers / sources to generate
QT_UICDECLPREFIX = '',
QT_UICDECLSUFFIX = '.h',
QT_UICIMPLPREFIX = 'uic_',
QT_UICIMPLSUFFIX = '$CXXFILESUFFIX',
QT_MOCHPREFIX = 'moc_',
QT_MOCHSUFFIX = '$CXXFILESUFFIX',
QT_MOCCXXPREFIX = '',
QT_MOCCXXSUFFIX = '.moc',
QT_UISUFFIX = '.ui',
# Commands for the qt support ...
# command to generate header, implementation and moc-file
# from a .ui file
QT_UICCOM = [
CLVar('$QT_UIC $QT_UICDECLFLAGS -o ${TARGETS[0]} $SOURCE'),
CLVar('$QT_UIC $QT_UICIMPLFLAGS -impl ${TARGETS[0].file} '
'-o ${TARGETS[1]} $SOURCE'),
CLVar('$QT_MOC $QT_MOCFROMHFLAGS -o ${TARGETS[2]} ${TARGETS[0]}')],
# command to generate meta object information for a class
# declared in a header
QT_MOCFROMHCOM = (
'$QT_MOC $QT_MOCFROMHFLAGS -o ${TARGETS[0]} $SOURCE'),
# command to generate meta object information for a class
# declared in a cpp file
QT_MOCFROMCXXCOM = [
CLVar('$QT_MOC $QT_MOCFROMCXXFLAGS -o ${TARGETS[0]} $SOURCE'),
Action(checkMocIncluded,None)])
# ... and the corresponding builders
uicBld = Builder(action=SCons.Action.Action('$QT_UICCOM', '$QT_UICCOMSTR'),
emitter=uicEmitter,
src_suffix='$QT_UISUFFIX',
suffix='$QT_UICDECLSUFFIX',
prefix='$QT_UICDECLPREFIX',
source_scanner=uicScanner)
mocBld = Builder(action={}, prefix={}, suffix={})
for h in header_extensions:
act = SCons.Action.Action('$QT_MOCFROMHCOM', '$QT_MOCFROMHCOMSTR')
mocBld.add_action(h, act)
mocBld.prefix[h] = '$QT_MOCHPREFIX'
mocBld.suffix[h] = '$QT_MOCHSUFFIX'
for cxx in cxx_suffixes:
act = SCons.Action.Action('$QT_MOCFROMCXXCOM', '$QT_MOCFROMCXXCOMSTR')
mocBld.add_action(cxx, act)
mocBld.prefix[cxx] = '$QT_MOCCXXPREFIX'
mocBld.suffix[cxx] = '$QT_MOCCXXSUFFIX'
# register the builders
env['BUILDERS']['Uic'] = uicBld
env['BUILDERS']['Moc'] = mocBld
static_obj, shared_obj = SCons.Tool.createObjBuilders(env)
static_obj.add_src_builder('Uic')
shared_obj.add_src_builder('Uic')
# We use the emitters of Program / StaticLibrary / SharedLibrary
# to scan for moc'able files
# We can't refer to the builders directly, we have to fetch them
# as Environment attributes because that sets them up to be called
# correctly later by our emitter.
env.AppendUnique(PROGEMITTER =[AutomocStatic],
SHLIBEMITTER=[AutomocShared],
LDMODULEEMITTER=[AutomocShared],
LIBEMITTER =[AutomocStatic],
# Of course, we need to link against the qt libraries
CPPPATH=["$QT_CPPPATH"],
LIBPATH=["$QT_LIBPATH"],
LIBS=['$QT_LIB'])
def exists(env):
return _detect(env)
# Local Variables:
# tab-width:4
# indent-tabs-mode:nil
# End:
# vim: set expandtab tabstop=4 shiftwidth=4: