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build_opencv.sh
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build_opencv.sh
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#!/bin/bash
# 2019 Michael de Gans
set -ex
# change default constants here:
readonly PREFIX=/usr/local # install prefix, (can be ~/.local for a user install)
readonly BUILD_TMP=/tmp/build_opencv
cleanup () {
echo "REMOVING build files"
rm -rf ${BUILD_TMP}
echo "REMOVING build dependencies"
apt-get purge -y --autoremove \
gosu \
build-essential \
ca-certificates \
cmake \
git \
cuda-compiler-10-2 \
cuda-minimal-build-10-2 \
cuda-libraries-dev-10-2 \
libcudnn8-dev \
python3-dev
# there are probably more -dev packages that can be removed if the
# runtime packages are explicitly added below in install_dependencies
# but the above ones I know offhand can be removed without breaking open_cv
# TODO(mdegans): separate more build and runtime deps, purge build deps
# this shaves about 20Mb off the image
echo "REMOVING apt cache and lists"
apt-get clean
rm -rf /var/lib/apt/lists/*
echo "REMOVING builder user and any owned files"
deluser --remove-all-files builder
}
setup () {
echo "CREATING new builder user to build opencv"
adduser --system --group --no-create-home builder
if [[ -d ${BUILD_TMP} ]] ; then
echo "WARNING: It appears an existing build exists in /tmp/build_opencv"
cleanup
fi
mkdir -p ${BUILD_TMP} && chown builder:builder ${BUILD_TMP}
echo "CREATING symlink to /usr/local/cuda"
ln -s /usr/local/cuda-10.0 /usr/local/cuda
echo "ADDING /usr/local/cuda/bin to PATH"
PATH=/usr/local/cuda/bin:$PATH
}
git_source () {
cd ${BUILD_TMP}
echo "CLONING version '$1' of OpenCV"
gosu builder git clone --depth 1 --branch "$1" https://github.com/opencv/opencv.git
gosu builder git clone --depth 1 --branch "$1" https://github.com/opencv/opencv_contrib.git
}
install_dependencies () {
# open-cv has a lot of dependencies, but most can be found in the default
# package repository or should already be installed (eg. CUDA).
echo "Installing build dependencies."
# well, shit, they fixed it, so we do this to get the certs temporarily
mv /etc/apt/sources.list.d/nvidia-l4t-apt-source.list /etc/apt/
apt-get update && apt-get install -y --no-install-recommends \
ca-certificates
mv /etc/apt/nvidia-l4t-apt-source.list /etc/apt/sources.list.d
apt-get update && apt-get install -y --no-install-recommends \
gosu \
cuda-compiler-10-2 \
cuda-minimal-build-10-2 \
cuda-libraries-dev-10-2 \
libcudnn8-dev \
build-essential \
cmake \
git \
gfortran \
libatlas-base-dev \
libavcodec-dev \
libavformat-dev \
libavresample-dev \
libeigen3-dev \
libgstreamer-plugins-base1.0-dev \
libgstreamer-plugins-good1.0-dev \
libgstreamer1.0-dev \
libjpeg-dev \
libjpeg8-dev \
libjpeg-turbo8-dev \
liblapack-dev \
liblapacke-dev \
libopenblas-dev \
libpng-dev \
libpostproc-dev \
libswscale-dev \
libtbb-dev \
libtbb2 \
libtesseract-dev \
libtiff-dev \
libv4l-dev \
libx264-dev \
pkg-config \
python3-dev \
python3-numpy \
python3-pil \
python3-matplotlib \
v4l-utils \
zlib1g-dev
}
configure () {
local CMAKEFLAGS="
-D CMAKE_LIBRARY_PATH=/usr/local/cuda/lib64/stubs
-D BUILD_EXAMPLES=OFF
-D BUILD_opencv_python2=ON
-D BUILD_opencv_python3=ON
-D CMAKE_BUILD_TYPE=RELEASE
-D CMAKE_INSTALL_PREFIX=${PREFIX}
-D CUDA_ARCH_BIN=5.3,6.2,7.2
-D CUDA_ARCH_PTX=
-D CUDA_FAST_MATH=ON
-D EIGEN_INCLUDE_PATH=/usr/include/eigen3
-D ENABLE_NEON=ON
-D OPENCV_ENABLE_NONFREE=ON
-D OPENCV_EXTRA_MODULES_PATH=/tmp/build_opencv/opencv_contrib/modules
-D OPENCV_GENERATE_PKGCONFIG=ON
-D WITH_CUBLAS=ON
-D WITH_CUDA=ON
-D WITH_CUDNN=ON
-D CUDNN_VERSION='8.0'
-D OPENCV_DNN_CUDA=ON
-D WITH_GSTREAMER=ON
-D WITH_LIBV4L=ON
-D WITH_OPENGL=ON"
if [[ ${OPENCV_DO_TEST} != "TRUE" ]]; then
CMAKEFLAGS="
${CMAKEFLAGS}
-D BUILD_PERF_TESTS=OFF
-D BUILD_TESTS=OFF"
fi
echo "cmake flags: ${CMAKEFLAGS}"
cd ${BUILD_TMP}/opencv
mkdir build && chown builder:builder build
cd build
gosu builder cmake ${CMAKEFLAGS} ..
}
main () {
if [[ ! -f "/.dockerenv" ]]; then
echo "this script will break your system if run outside docker" 1>&2
exit 1
fi
echo "OPENCV_VERSION=${OPENCV_VERSION}"
echo "OPENCV_DO_TEST=${OPENCV_DO_TEST}"
echo "OPENCV_BUILD_JOBS=${OPENCV_BUILD_JOBS}"
# prepare for the build:
setup
install_dependencies
git_source ${OPENCV_VERSION}
# configure the build
configure
# start the build
gosu builder make -j${OPENCV_BUILD_JOBS}
if [[ ${OPENCV_DO_TEST} == "TRUE" ]] ; then
echo "MAKING tests"
gosu builder make test # (make and) run the tests
fi
make install
cleanup
}
main "$@"