New variant of iOS framework building, fixed some warnings for XCode 7.1.1 and cmake 3.3.2
This commit is contained in:
Maksim Shabunin
@@ -25,141 +25,165 @@ The script should handle minor OpenCV updates efficiently
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However, opencv2.framework directory is erased and recreated on each run.
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"""
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import glob, re, os, os.path, shutil, string, sys, exceptions, subprocess, argparse
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from __future__ import print_function
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import glob, re, os, os.path, shutil, string, sys, argparse, traceback
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from subprocess import check_call, check_output, CalledProcessError
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opencv_contrib_path = None
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def execute(cmd, cwd = None):
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print("Executing: %s in %s" % (cmd, cwd), file=sys.stderr)
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retcode = check_call(cmd, cwd = cwd)
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if retcode != 0:
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raise Exception("Child returned:", retcode)
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def execute(cmd):
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try:
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print >>sys.stderr, "Executing:", cmd
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retcode = subprocess.call(cmd, shell=True)
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if retcode < 0:
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raise Exception("Child was terminated by signal:", -retcode)
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elif retcode > 0:
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raise Exception("Child returned:", retcode)
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except OSError as e:
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raise Exception("Execution failed:", e)
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def getXCodeMajor():
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ret = check_output(["xcodebuild", "-version"])
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m = re.match(r'XCode\s+(\d)\..*', ret, flags=re.IGNORECASE)
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if m:
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return int(m.group(1))
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return 0
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def build_opencv(srcroot, buildroot, target, arch):
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"builds OpenCV for device or simulator"
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class Builder:
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def __init__(self, opencv, contrib):
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self.opencv = os.path.abspath(opencv)
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self.contrib = None
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if contrib:
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modpath = os.path.join(contrib, "modules")
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if os.path.isdir(modpath):
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self.contrib = os.path.abspath(modpath)
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else:
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print("Note: contrib repository is bad - modules subfolder not found", file=sys.stderr)
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self.targets = [
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("armv7", "iPhoneOS"),
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("armv7s", "iPhoneOS"),
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("arm64", "iPhoneOS"),
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("i386", "iPhoneSimulator"),
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("x86_64", "iPhoneSimulator")
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]
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builddir = os.path.join(buildroot, target + '-' + arch)
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if not os.path.isdir(builddir):
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os.makedirs(builddir)
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currdir = os.getcwd()
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os.chdir(builddir)
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# for some reason, if you do not specify CMAKE_BUILD_TYPE, it puts libs to "RELEASE" rather than "Release"
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cmakeargs = ("-GXcode " +
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"-DCMAKE_BUILD_TYPE=Release " +
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"-DCMAKE_TOOLCHAIN_FILE=%s/platforms/ios/cmake/Toolchains/Toolchain-%s_Xcode.cmake " +
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"-DCMAKE_C_FLAGS=\"-Wno-implicit-function-declaration\" " +
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"-DCMAKE_INSTALL_PREFIX=install") % (srcroot, target)
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def getBD(self, parent, t):
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res = os.path.join(parent, '%s-%s' % t)
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if not os.path.isdir(res):
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os.makedirs(res)
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return os.path.abspath(res)
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if arch.startswith("armv"):
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cmakeargs += " -DENABLE_NEON=ON"
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def build(self, outdir):
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outdir = os.path.abspath(outdir)
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if not os.path.isdir(outdir):
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os.makedirs(outdir)
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mainWD = os.path.join(outdir, "build")
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dirs = []
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if opencv_contrib_path is not None:
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cmakeargs += " -DCMAKE_SKIP_INSTALL_ALL_DEPENDENCY=ON -DOPENCV_EXTRA_MODULES_PATH=%s -DBUILD_opencv_contrib_world=ON" % opencv_contrib_path
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build_target = "opencv_contrib_world"
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libname = "libopencv_contrib_world.a"
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else:
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cmakeargs += " -DBUILD_opencv_world=ON"
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build_target = "ALL_BUILD"
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libname = "libopencv_world.a"
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xcode_ver = getXCodeMajor()
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# if cmake cache exists, just rerun cmake to update OpenCV.xcodeproj if necessary
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if os.path.isfile(os.path.join(builddir, "CMakeCache.txt")):
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execute("cmake %s ." % (cmakeargs,))
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else:
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execute("cmake %s %s" % (cmakeargs, srcroot))
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for t in self.targets:
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mainBD = self.getBD(mainWD, t)
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dirs.append(mainBD)
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cmake_flags = []
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if self.contrib:
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cmake_flags.append("-DOPENCV_EXTRA_MODULES_PATH=%s" % self.contrib)
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if xcode_ver >= 7 and not "Simulator" in t[1]:
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cmake_flags.append("-DCMAKE_C_FLAGS=-fembed-bitcode")
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cmake_flags.append("-DCMAKE_CXX_FLAGS=-fembed-bitcode")
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self.buildOne(t[0], t[1], mainBD, cmake_flags)
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self.mergeLibs(mainBD)
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self.makeFramework(outdir, dirs)
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for wlib in [builddir + "/modules/world/UninstalledProducts/" + libname,
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builddir + "/lib/Release/" + libname]:
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if os.path.isfile(wlib):
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os.remove(wlib)
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def buildOne(self, arch, target, builddir, cmakeargs = []):
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# Run cmake
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toolchain = os.path.join(self.opencv, "platforms", "ios", "cmake", "Toolchains", "Toolchain-%s_Xcode.cmake" % target)
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cmakecmd = [
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"cmake",
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"-GXcode",
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"-DCMAKE_BUILD_TYPE=Release",
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"-DCMAKE_TOOLCHAIN_FILE=%s" % toolchain,
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"-DCMAKE_INSTALL_PREFIX=install",
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]
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if arch.startswith("armv"):
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cmakecmd.append("-DENABLE_NEON=ON")
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cmakecmd.append(self.opencv)
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cmakecmd.extend(cmakeargs)
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execute(cmakecmd, cwd = builddir)
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# Clean and build
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cleanlist = []
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cleanlist.extend(glob.glob(os.path.join(builddir, "lib", "Release", "*.a")))
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cleanlist.extend(glob.glob(os.path.join(builddir, "modules", "*", "UninstalledProducts", "*.a")))
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print("Cleaning files:\n\t%s" % "\n\t".join(cleanlist), file=sys.stderr)
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for f in cleanlist:
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if os.path.isfile(f):
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os.remove(f)
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buildcmd = [
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"xcodebuild",
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"IPHONEOS_DEPLOYMENT_TARGET=6.0",
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"ARCHS=%s" % arch,
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"-sdk", target.lower(),
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"-configuration", "Release",
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"-parallelizeTargets",
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"-jobs", "8",
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]
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execute(buildcmd + ["-target", "ALL_BUILD", "build"], cwd = builddir)
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execute(buildcmd + ["-target", "install", "install"], cwd = builddir)
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execute("xcodebuild IPHONEOS_DEPLOYMENT_TARGET=6.0 -parallelizeTargets ARCHS=%s -jobs 8 -sdk %s -configuration Release -target %s" % (arch, target.lower(), build_target))
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execute("xcodebuild IPHONEOS_DEPLOYMENT_TARGET=6.0 ARCHS=%s -sdk %s -configuration Release -target install install" % (arch, target.lower()))
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os.chdir(currdir)
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def mergeLibs(self, builddir):
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res = os.path.join(builddir, "lib", "Release", "libopencv_merged.a")
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libs = glob.glob(os.path.join(builddir, "lib", "Release", "*.a"))
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libs3 = glob.glob(os.path.join(builddir, "3rdparty", "lib", "Release", "*.a"))
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print("Merging libraries:\n\t%s" % "\n\t".join(libs + libs3), file=sys.stderr)
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execute(["libtool", "-static", "-o", res] + libs + libs3)
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def put_framework_together(srcroot, dstroot):
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"constructs the framework directory after all the targets are built"
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def makeFramework(self, outdir, builddirs):
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name = "opencv2"
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libname = "libopencv_merged.a"
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name = "opencv2" if opencv_contrib_path is None else "opencv2_contrib"
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libname = "libopencv_world.a" if opencv_contrib_path is None else "libopencv_contrib_world.a"
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# set the current dir to the dst root
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framework_dir = os.path.join(outdir, "%s.framework" % name)
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if os.path.isdir(framework_dir):
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shutil.rmtree(framework_dir)
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os.makedirs(framework_dir)
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# find the list of targets (basically, ["iPhoneOS", "iPhoneSimulator"])
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targetlist = glob.glob(os.path.join(dstroot, "build", "*"))
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targetlist = [os.path.basename(t) for t in targetlist]
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dstdir = os.path.join(framework_dir, "Versions", "A")
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# set the current dir to the dst root
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currdir = os.getcwd()
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framework_dir = dstroot + "/%s.framework" % name
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if os.path.isdir(framework_dir):
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shutil.rmtree(framework_dir)
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os.makedirs(framework_dir)
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os.chdir(framework_dir)
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# copy headers from one of build folders
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shutil.copytree(os.path.join(builddirs[0], "install", "include", "opencv2"), os.path.join(dstdir, "Headers"))
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# form the directory tree
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dstdir = "Versions/A"
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os.makedirs(dstdir + "/Resources")
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# make universal static lib
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libs = [os.path.join(d, "lib", "Release", libname) for d in builddirs]
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lipocmd = ["lipo", "-create"]
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lipocmd.extend(libs)
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lipocmd.extend(["-o", os.path.join(dstdir, name)])
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print("Creating universal library from:\n\t%s" % "\n\t".join(libs), file=sys.stderr)
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execute(lipocmd)
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tdir0 = "../build/" + targetlist[0]
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# copy headers
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shutil.copytree(tdir0 + "/install/include/opencv2", dstdir + "/Headers")
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# make universal static lib
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wlist = " ".join(["../build/" + t + "/lib/Release/" + libname for t in targetlist])
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execute("lipo -create " + wlist + " -o " + dstdir + "/%s" % name)
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# copy Info.plist
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shutil.copyfile(tdir0 + "/ios/Info.plist", dstdir + "/Resources/Info.plist")
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# make symbolic links
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os.symlink("A", "Versions/Current")
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os.symlink("Versions/Current/Headers", "Headers")
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os.symlink("Versions/Current/Resources", "Resources")
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os.symlink("Versions/Current/%s" % name, name)
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def build_framework(srcroot, dstroot):
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"main function to do all the work"
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targets = [("armv7", "iPhoneOS"),
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("armv7s", "iPhoneOS"),
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("arm64", "iPhoneOS"),
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("i386", "iPhoneSimulator"),
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("x86_64", "iPhoneSimulator")]
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for t in targets:
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build_opencv(srcroot, os.path.join(dstroot, "build"), t[1], t[0])
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put_framework_together(srcroot, dstroot)
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# copy Info.plist
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resdir = os.path.join(dstdir, "Resources")
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os.makedirs(resdir)
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shutil.copyfile(os.path.join(builddirs[0], "ios", "Info.plist"), os.path.join(resdir, "Info.plist"))
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# make symbolic links
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links = [
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(["A"], ["Versions", "Current"]),
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(["Versions", "Current", "Headers"], ["Headers"]),
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(["Versions", "Current", "Resources"], ["Resources"]),
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(["Versions", "Current", name], [name])
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]
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for l in links:
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s = os.path.join(*l[0])
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d = os.path.join(framework_dir, *l[1])
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os.symlink(s, d)
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if __name__ == "__main__":
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folder = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), "../.."))
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parser = argparse.ArgumentParser(description='The script builds OpenCV.framework for iOS.')
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parser.add_argument('outputdir', nargs=1, help='folder to put built framework')
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parser.add_argument('--contrib', help="folder with opencv_contrib repository")
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parser.add_argument('out', metavar='OUTDIR', help='folder to put built framework')
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parser.add_argument('--opencv', metavar='DIR', default=folder, help='folder with opencv repository (default is "../.." relative to script location)')
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parser.add_argument('--contrib', metavar='DIR', default=None, help='folder with opencv_contrib repository (default is "None" - build only main framework)')
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args = parser.parse_args()
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# path to OpenCV main repository - hardcoded ../..
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opencv_path = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), "../.."))
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print "OpenCV:", opencv_path
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# path to OpenCV_contrib repository, can be empty - global variable
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if hasattr(args, "contrib") and args.contrib is not None:
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if os.path.isdir(args.contrib + "/modules"):
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opencv_contrib_path = os.path.abspath(args.contrib + "/modules")
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print "Contrib:", opencv_contrib_path
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else:
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print "Note: contrib repository is bad: modules subfolder not found"
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# result path - folder where framework will be located
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output_path = os.path.abspath(args.outputdir[0])
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print "Output:", output_path
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b = Builder(args.opencv, args.contrib)
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try:
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build_framework(opencv_path, output_path)
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b.build(args.out)
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except Exception as e:
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print >>sys.stderr, e
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print("="*60, file=sys.stderr)
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print("ERROR: %s" % e, file=sys.stderr)
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print("="*60, file=sys.stderr)
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traceback.print_exc(file=sys.stderr)
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sys.exit(1)
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