109 lines
3.7 KiB
Ruby
109 lines
3.7 KiB
Ruby
require 'formula'
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def which_python
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"python" + `python -c 'import sys;print(sys.version[:3])'`.strip
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end
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def site_package_dir
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"lib/#{which_python}/site-packages"
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end
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class Opencv < Formula
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homepage 'http://opencv.org/'
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url 'http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/2.4.4/OpenCV-2.4.4.tar.bz2'
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sha1 '23c62f7e3de540524f61974c640a23df426ebed5'
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env :std # to find python
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option '32-bit'
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option 'with-qt', 'Build the Qt4 backend to HighGUI'
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option 'with-tbb', 'Enable parallel code in OpenCV using Intel TBB'
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option 'with-opencl', 'Enable gpu code in OpenCV using OpenCL'
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# CLT-only couldn't install this out-of-the-box.
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# From the build error:
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# set CMAKE_OSX_SYSROOT to a valid SDK or
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# set CMAKE_OSX_DEPLOYMENT_TARGET to empty
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depends_on :xcode
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depends_on 'cmake' => :build
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depends_on 'pkg-config' => :build
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depends_on 'numpy' => :python
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depends_on 'eigen' => :optional
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depends_on 'libtiff' => :optional
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depends_on 'jasper' => :optional
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depends_on 'tbb' => :optional
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depends_on 'qt' => :optional
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depends_on :libpng
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# Can also depend on ffmpeg, but this pulls in a lot of extra stuff that
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# you don't need unless you're doing video analysis, and some of it isn't
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# in Homebrew anyway. Will depend on openexr if it's installed.
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def install
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args = std_cmake_args + %w[
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-DWITH_CUDA=OFF
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-DBUILD_ZLIB=OFF
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-DBUILD_TIFF=OFF
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-DBUILD_PNG=OFF
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-DBUILD_JPEG=OFF
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-DBUILD_JASPER=OFF
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-DBUILD_TESTS=OFF
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-DBUILD_PERF_TESTS=OFF
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]
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if build.build_32_bit?
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args << "-DCMAKE_OSX_ARCHITECTURES=i386"
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args << "-DOPENCV_EXTRA_C_FLAGS='-arch i386 -m32'"
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args << "-DOPENCV_EXTRA_CXX_FLAGS='-arch i386 -m32'"
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end
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args << '-DWITH_QT=ON' if build.with? 'qt'
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args << '-DWITH_TBB=ON' if build.with? 'tbb'
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args << '-DWITH_OPENCL=ON' if build.with? 'opencl'
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# The CMake `FindPythonLibs` Module is dumber than a bag of hammers when
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# more than one python installation is available---for example, it clings
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# to the Header folder of the system Python Framework like a drowning
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# sailor.
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#
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# This code was cribbed from the VTK formula and uses the output to
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# `python-config` to do the job FindPythonLibs should be doing in the first
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# place.
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python_prefix = `python-config --prefix`.strip
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# Python is actually a library. The libpythonX.Y.dylib points to this lib, too.
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if File.exist? "#{python_prefix}/Python"
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# Python was compiled with --framework:
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args << "-DPYTHON_LIBRARY='#{python_prefix}/Python'"
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if !MacOS::CLT.installed? and python_prefix.start_with? '/System/Library'
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# For Xcode-only systems, the headers of system's python are inside of Xcode
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args << "-DPYTHON_INCLUDE_DIR='#{MacOS.sdk_path}/System/Library/Frameworks/Python.framework/Versions/2.7/Headers'"
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else
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args << "-DPYTHON_INCLUDE_DIR='#{python_prefix}/Headers'"
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end
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else
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python_lib = "#{python_prefix}/lib/lib#{which_python}"
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if File.exists? "#{python_lib}.a"
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args << "-DPYTHON_LIBRARY='#{python_lib}.a'"
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else
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args << "-DPYTHON_LIBRARY='#{python_lib}.dylib'"
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end
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args << "-DPYTHON_INCLUDE_DIR='#{python_prefix}/include/#{which_python}'"
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end
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args << "-DPYTHON_PACKAGES_PATH='#{lib}/#{which_python}/site-packages'"
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args << '..'
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mkdir 'macbuild' do
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system 'cmake', *args
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system "make"
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system "make install"
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end
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end
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def caveats; <<-EOS.undent
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The OpenCV Python module will not work until you edit your PYTHONPATH like so:
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export PYTHONPATH="#{HOMEBREW_PREFIX}/#{site_package_dir}:$PYTHONPATH"
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To make this permanent, put it in your shell's profile (e.g. ~/.profile).
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EOS
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end
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end
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