Puppet module class for installing OpenCV from source on Ubuntu.

init.pp

class opencv {

    Exec { path => "/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin", }

    $version = "2.4.6.1"
    $libopencv_core_filename = "libopencv_core.so.2.4.6"

    case $operatingsystem {
        # Install OpenCV from source. This is an instructive example
        # and may come in handy if we need to move to a version of
        # OpenCV newer than is packaged in the OS.
        ubuntu: {
            $packages = ["libjpeg-dev",
                         "libtiff4-dev",
                         "libjasper-dev",
                         "libgtk2.0-dev",
                         "libavcodec-dev",
                         "libavformat-dev",
                         "libswscale-dev",
                         "libdc1394-22-dev",
                         "libv4l-dev",
                         "libxine-dev",
                         "libgstreamer0.10-dev",
                         "libgstreamer-plugins-base0.10-dev",
                         "libtbb-dev",
                         "python-numpy",
                         "libqt4-dev"]
            package { $packages: ensure => latest }
            exec{"download_opencv":
                require => [Package[$packages],
                            Class["development"]],
                command => "bash -c \"cd /home/stb-tester/Downloads; wget http://netcologne.dl.sourceforge.net/project/opencvlibrary/opencv-unix/${version}/opencv-${version}.tar.gz\"",
                creates => "/home/stb-tester/Downloads/opencv-${version}.tar.gz",
            }
            exec {"extract_opencv":
                require => Exec["download_opencv"],
                command => "tar xvf opencv-${version}.tar.gz",
                cwd => '/home/stb-tester/Downloads',
                creates => "/home/stb-tester/Downloads/opencv-${version}",
            }
            file { "/home/stb-tester/Downloads/opencv-${version}/build":
                require => Exec["extract_opencv"],
                ensure => "directory",
            }
            exec {"build_opencv_make":
                require => [File["/home/stb-tester/Downloads/opencv-${version}/build"],
                            Class["development"]],
                command => 'cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D BUILD_NEW_PYTHON_SUPPORT=ON -D WITH_V4L=ON -D INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON -D BUILD_EXAMPLES=ON -D WITH_QT=ON -D WITH_OPENGL=ON ..',
                cwd => "/home/stb-tester/Downloads/opencv-${version}/build",
            }
            exec {"build_opencv":
                require => Exec["build_opencv_make"],
                command => 'bash -c "make; make install"',
                cwd => "/home/stb-tester/Downloads/opencv-${version}/build",
                timeout => 1800,
                creates => "/usr/local/lib/${libopencv_core_filename}",
            }
            exec {"load_module":
                require => Exec["build_opencv"],
                command => "ldconfig",
            }
        }
        /(centos|redhat|oel)/: {
            package { "opencv": ensure => latest }
        }
    }

}