pkgname =  "opencv"
pkgver  = "4.13.0"
source  = f"https://github.com/opencv/opencv/archive/{pkgver}/opencv-{pkgver}.tar.gz"
builddir = f"/tmp/fempkg/build/{pkgname}/{pkgname}-{pkgver}"
fembuilddir = f"/tmp/fempkg/build/{pkgname}"
outputdir = "/home/gabry/lfs-repo/binpkg"
manifestdir = "/home/gabry/lfs-repo/manifests"
destdir = f"{fembuilddir}/DESTDIR"

deps = ["cmake", "libarchive", "ffmpeg", "gst-plugins-base", "gtk3", "libjpeg-turbo", "libpng", "libtiff", "libwebp"]

build = [
    # Extract
    f"mkdir -p {fembuilddir} && cd {fembuilddir} && tar -xvf /var/lib/fempkg/pkgs/{pkgname}-{pkgver}.tar.gz && "
    f"wget https://www.linuxfromscratch.org/patches/blfs/svn/opencv-{pkgver}-ffmpeg8-1.patch",

    # 64-bit build
    f"cd {builddir} && patch -Np1 -i ../opencv-{pkgver}-ffmpeg8-1.patch && mkdir -pv build && cd build && cmake -D CMAKE_INSTALL_PREFIX=/usr "
    f"-D CMAKE_BUILD_TYPE=Release -D ENABLE_CXX11=ON -D BUILD_PERF_TESTS=OFF -D WITH_XINE=OFF -D WITH_OPENJPEG=OFF -D BUILD_TESTS=OFF "
    f"-D ENABLE_PRECOMPILED_HEADERS=OFF -D CMAKE_SKIP_INSTALL_RPATH=ON -D BUILD_WITH_DEBUG_INFO=OFF -D OPENCV_GENERATE_PKGCONFIG=ON "
    f"-D CMAKE_POLICY_VERSION_MINIMUM=3.5 -W no-dev  .. ", # hmm

    f"cd {builddir}/build && make -j$(nproc)",
    f"cd {builddir}/build && make DESTDIR={destdir} install",

    f"install -v -d -m755 {destdir}/usr/share/licenses/{pkgname}4/",
    f"install -v -m644 {builddir}/LICENSE {destdir}/usr/share/licenses/{pkgname}4/LICENSE",
    f"install -v -m644 {builddir}/COPYRIGHT {destdir}/usr/share/licenses/{pkgname}4/COPYRIGHT",

    # Make tarball + manifests
    f"mkdir -p {outputdir} && cd {destdir} && tar --transform 's|^\\.||' -I zstd -cf {outputdir}/{pkgname}-{pkgver}.tar.zst .",
    f"mkdir -p {manifestdir} && tar -tf {outputdir}/{pkgname}-{pkgver}.tar.zst | grep -v '/$' > {manifestdir}/{pkgname}.txt",

    # Cleanup
    f"rm -rf {fembuilddir}"
]