# Contributor: Stefan Reimer <stefan@zero-downtime.net>
# Maintainer: Stefan Reimer <stefan@zero-downtime.net>
pkgname=falco-kernel
pkgver=0.35.1
pkgrel=0
pkgdesc="Falco kernel module"
url="https://github.com/falcosecurity/falco"
arch="x86_64 aarch64"
license="AGPL-3.0"
makedepends="cmake linux-virt-dev linux-headers"
             # protobuf-dev jq-dev openssl-dev curl-dev c-ares-dev grpc-dev yaml-dev yaml-cpp-dev jsoncpp-dev re2-dev"
             # perl autoconf elfutils-dev libtool argp-standalone musl-fts-dev musl-libintl musl-obstack-dev"
options="!check"

source="
  falco-$pkgver.tar.gz::https://github.com/falcosecurity/falco/archive/refs/tags/$pkgver.tar.gz
  "
builddir="$srcdir/falco-$pkgver"

prepare() {
  [[ -d build ]] || mkdir build
}

build() {
  # Hack running the build inside a container other uname -r returns host kernel
  KERNEL_VERSION=$(basename $(ls -d /lib/modules/*-virt))

  cd build
  cmake .. \
    -DCMAKE_BUILD_TYPE=Release \
    -DFALCO_VERSION=$pkgver \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DUSE_BUNDLED_DEPS=On \
    -DMUSL_OPTIMIZED_BUILD=On

  KERNELDIR=/lib/modules/$KERNEL_VERSION/build make driver
}

package() {
  KERNEL_VERSION=$(basename $(ls -d /lib/modules/*-virt))
  depends="linux-virt~$(echo $KERNEL_VERSION | sed -e 's/-.*$//')"

  cd $srcdir/falco-$pkgver/build
  mkdir -p "$pkgdir"/lib/modules/$KERNEL_VERSION/kernel
  gzip -9 -c driver/falco.ko > "$pkgdir"/lib/modules/$KERNEL_VERSION/kernel/falco.ko.gz 
}

sha512sums="
dc648d9b0a625a02320ff0235bbf4f4940e7ba40c684a8a1f972d34f0a3447b4a34e665d7fbc0ee1ec9a014f65f81a304dc76b4ec804fc7b4e448f330b9474af  falco-0.35.1.tar.gz
"