Chris@4: import sys, os.path
Chris@4: 
Chris@4: def rsplit(toSplit, sub, max=-1):
Chris@4:     """ str.rsplit seems to have been introduced in 2.4 :( """
Chris@4:     l = []
Chris@4:     i = 0
Chris@4:     while i != max:
Chris@4:         try: idx = toSplit.rindex(sub)
Chris@4:         except ValueError: break
Chris@4: 
Chris@4:         toSplit, splitOff = toSplit[:idx], toSplit[idx + len(sub):]
Chris@4:         l.insert(0, splitOff)
Chris@4:         i += 1
Chris@4: 
Chris@4:     l.insert(0, toSplit)
Chris@4:     return l
Chris@4: 
Chris@4: sconsDir = os.path.join("build", "scons")
Chris@4: SConscript(os.path.join(sconsDir, "SConscript_common"))
Chris@4: Import("Platform", "Posix", "ApiVer")
Chris@4: 
Chris@4: # SConscript_opts exports PortAudio options
Chris@4: optsDict = SConscript(os.path.join(sconsDir, "SConscript_opts"))
Chris@4: optionsCache = os.path.join(sconsDir, "options.cache")   # Save options between runs in this cache
Chris@4: options = Options(optionsCache, args=ARGUMENTS)
Chris@4: for k in ("Installation Dirs", "Build Targets", "Host APIs", "Build Parameters", "Bindings"):
Chris@4:     options.AddOptions(*optsDict[k])
Chris@4: # Propagate options into environment
Chris@4: env = Environment(options=options)
Chris@4: # Save options for next run
Chris@4: options.Save(optionsCache, env)
Chris@4: # Generate help text for options
Chris@4: env.Help(options.GenerateHelpText(env))
Chris@4: 
Chris@4: buildDir = os.path.join("#", sconsDir, env["PLATFORM"])
Chris@4: 
Chris@4: # Determine parameters to build tools
Chris@4: if Platform in Posix:
Chris@4:     threadCFlags = ''
Chris@4:     if Platform != 'darwin':
Chris@4:         threadCFlags = "-pthread "
Chris@4:     baseLinkFlags = threadCFlags
Chris@4:     baseCxxFlags = baseCFlags = "-Wall -pedantic -pipe " + threadCFlags
Chris@4:     debugCxxFlags = debugCFlags = "-g"
Chris@4:     optCxxFlags = optCFlags  = "-O2"
Chris@4: env.Append(CCFLAGS = baseCFlags)
Chris@4: env.Append(CXXFLAGS = baseCxxFlags)
Chris@4: env.Append(LINKFLAGS = baseLinkFlags)
Chris@4: if env["enableDebug"]:
Chris@4:     env.AppendUnique(CCFLAGS=debugCFlags.split())
Chris@4:     env.AppendUnique(CXXFLAGS=debugCxxFlags.split())
Chris@4: if env["enableOptimize"]:
Chris@4:     env.AppendUnique(CCFLAGS=optCFlags.split())
Chris@4:     env.AppendUnique(CXXFLAGS=optCxxFlags.split())
Chris@4: if not env["enableAsserts"]:
Chris@4:     env.AppendUnique(CPPDEFINES=["-DNDEBUG"])
Chris@4: if env["customCFlags"]:
Chris@4:     env.Append(CCFLAGS=Split(env["customCFlags"]))
Chris@4: if env["customCxxFlags"]:
Chris@4:     env.Append(CXXFLAGS=Split(env["customCxxFlags"]))
Chris@4: if env["customLinkFlags"]:
Chris@4:     env.Append(LINKFLAGS=Split(env["customLinkFlags"]))
Chris@4: 
Chris@4: env.Append(CPPPATH=[os.path.join("#", "include"), "common"])
Chris@4: 
Chris@4: # Store all signatures in one file, otherwise .sconsign files will get installed along with our own files
Chris@4: env.SConsignFile(os.path.join(sconsDir, ".sconsign"))
Chris@4: 
Chris@4: env.SConscriptChdir(False)
Chris@4: sources, sharedLib, staticLib, tests, portEnv, hostApis = env.SConscript(os.path.join("src", "SConscript"),
Chris@4:         build_dir=buildDir, duplicate=False, exports=["env"])
Chris@4: 
Chris@4: if Platform in Posix:
Chris@4:     prefix = env["prefix"]
Chris@4:     includeDir = os.path.join(prefix, "include")
Chris@4:     libDir = os.path.join(prefix, "lib")
Chris@4:     env.Alias("install", includeDir)
Chris@4:     env.Alias("install", libDir)
Chris@4: 
Chris@4:     # pkg-config
Chris@4: 
Chris@4:     def installPkgconfig(env, target, source):
Chris@4:         tgt = str(target[0])
Chris@4:         src = str(source[0])
Chris@4:         f = open(src)
Chris@4:         try: txt = f.read()
Chris@4:         finally: f.close()
Chris@4:         txt = txt.replace("@prefix@", prefix)
Chris@4:         txt = txt.replace("@exec_prefix@", prefix)
Chris@4:         txt = txt.replace("@libdir@", libDir)
Chris@4:         txt = txt.replace("@includedir@", includeDir)
Chris@4:         txt = txt.replace("@LIBS@", " ".join(["-l%s" % l for l in portEnv["LIBS"]]))
Chris@4:         txt = txt.replace("@THREAD_CFLAGS@", threadCFlags)
Chris@4: 
Chris@4:         f = open(tgt, "w")
Chris@4:         try: f.write(txt)
Chris@4:         finally: f.close()
Chris@4: 
Chris@4:     pkgconfigTgt = "portaudio-%d.0.pc" % int(ApiVer.split(".", 1)[0])
Chris@4:     env.Command(os.path.join(libDir, "pkgconfig", pkgconfigTgt),
Chris@4:         os.path.join("#", pkgconfigTgt + ".in"), installPkgconfig)
Chris@4: 
Chris@4: # Default to None, since if the user disables all targets and no Default is set, all targets
Chris@4: # are built by default
Chris@4: env.Default(None)
Chris@4: if env["enableTests"]:
Chris@4:     env.Default(tests)
Chris@4: if env["enableShared"]:
Chris@4:     env.Default(sharedLib)
Chris@4: 
Chris@4:     if Platform in Posix:
Chris@4:         def symlink(env, target, source):
Chris@4:             trgt = str(target[0])
Chris@4:             src = str(source[0])
Chris@4: 
Chris@4:             if os.path.islink(trgt) or os.path.exists(trgt):
Chris@4:                 os.remove(trgt)
Chris@4:             os.symlink(os.path.basename(src), trgt)
Chris@4: 
Chris@4:         major, minor, micro = [int(c) for c in ApiVer.split(".")]
Chris@4:         
Chris@4:         soFile = "%s.%s" % (os.path.basename(str(sharedLib[0])), ApiVer)
Chris@4:         env.InstallAs(target=os.path.join(libDir, soFile), source=sharedLib)
Chris@4:         # Install symlinks
Chris@4:         symTrgt = os.path.join(libDir, soFile)
Chris@4:         env.Command(os.path.join(libDir, "libportaudio.so.%d.%d" % (major, minor)),
Chris@4:             symTrgt, symlink)
Chris@4:         symTrgt = rsplit(symTrgt, ".", 1)[0]
Chris@4:         env.Command(os.path.join(libDir, "libportaudio.so.%d" % major), symTrgt, symlink)
Chris@4:         symTrgt = rsplit(symTrgt, ".", 1)[0]
Chris@4:         env.Command(os.path.join(libDir, "libportaudio.so"), symTrgt, symlink)
Chris@4: 
Chris@4: if env["enableStatic"]:
Chris@4:     env.Default(staticLib)
Chris@4:     env.Install(libDir, staticLib)
Chris@4: 
Chris@4: env.Install(includeDir, os.path.join("include", "portaudio.h"))
Chris@4: 
Chris@4: 
Chris@4: if env["enableCxx"]:
Chris@4:     env.SConscriptChdir(True)
Chris@4:     cxxEnv = env.Copy()
Chris@4:     sharedLibs, staticLibs, headers = env.SConscript(os.path.join("bindings", "cpp", "SConscript"),
Chris@4:             exports={"env": cxxEnv, "buildDir": buildDir}, build_dir=os.path.join(buildDir, "portaudiocpp"), duplicate=False)
Chris@4:     if env["enableStatic"]:
Chris@4:         env.Default(staticLibs)
Chris@4:         env.Install(libDir, staticLibs)
Chris@4:     if env["enableShared"]:
Chris@4:         env.Default(sharedLibs)
Chris@4:         env.Install(libDir, sharedLibs)
Chris@4:     env.Install(os.path.join(includeDir, "portaudiocpp"), headers)
Chris@4: 
Chris@4: # Generate portaudio_config.h header with compile-time definitions of which PA
Chris@4: # back-ends are available, and which includes back-end extension headers
Chris@4: 
Chris@4: # Host-specific headers
Chris@4: hostApiHeaders = {"ALSA": "pa_linux_alsa.h",
Chris@4:                     "ASIO": "pa_asio.h",
Chris@4:                     "COREAUDIO": "pa_mac_core.h",
Chris@4:                     "JACK": "pa_jack.h",
Chris@4:                     "WMME": "pa_winwmme.h",
Chris@4:                     }
Chris@4: 
Chris@4: def buildConfigH(target, source, env):
Chris@4:     """builder for portaudio_config.h"""
Chris@4:     global hostApiHeaders, hostApis
Chris@4:     out = ""
Chris@4:     for hostApi in hostApis:
Chris@4:         out += "#define PA_HAVE_%s\n" % hostApi
Chris@4: 
Chris@4:         hostApiSpecificHeader = hostApiHeaders.get(hostApi, None)
Chris@4:         if hostApiSpecificHeader:
Chris@4:             out += "#include \"%s\"\n" % hostApiSpecificHeader
Chris@4: 
Chris@4:         out += "\n"
Chris@4:     # Strip the last newline
Chris@4:     if out and out[-1] == "\n":
Chris@4:         out = out[:-1]
Chris@4: 
Chris@4:     f = file(str(target[0]), 'w')
Chris@4:     try: f.write(out)
Chris@4:     finally: f.close()
Chris@4:     return 0
Chris@4: 
Chris@4: # Define the builder for the config header
Chris@4: env.Append(BUILDERS={"portaudioConfig": env.Builder(
Chris@4:             action=Action(buildConfigH), target_factory=env.fs.File)})
Chris@4: 
Chris@4: confH = env.portaudioConfig(File("portaudio_config.h", "include"),
Chris@4:         File("portaudio.h", "include"))
Chris@4: env.Default(confH)
Chris@4: env.Install(os.path.join(includeDir, "portaudio"), confH)
Chris@4: 
Chris@4: for api in hostApis:
Chris@4:     if api in hostApiHeaders:
Chris@4:         env.Install(os.path.join(includeDir, "portaudio"),
Chris@4:                 File(hostApiHeaders[api], "include"))