# Contributor: Stefan Reimer <stefan@zero-downtime.net>
# Maintainer: Stefan Reimer <stefan@zero-downtime.net>
pkgname=falco
pkgver=0.36.2
pkgrel=0
pkgdesc="Falco is the open source solution for runtime security for hosts, containers, Kubernetes and the cloud"
url="https://github.com/falcosecurity/falco"
arch="x86_64 aarch64"
license="AGPL-3.0"
makedepends="cmake linux-headers bash perl autoconf elfutils-dev libtool argp-standalone musl-fts-dev musl-libintl musl-obstack-dev
             protobuf-dev jq-dev openssl-dev curl-dev c-ares-dev grpc-dev yaml-dev yaml-cpp-dev zlib-dev jsoncpp-dev re2-dev onetbb-dev@edge-community"
options="!check"
depends="falco-kernel~$pkgver"

# Original config
# https://raw.githubusercontent.com/falcosecurity/rules/main/rules/falco_rules.yaml
# https://raw.githubusercontent.com/falcosecurity/falco/master/falco.yaml

source="
  $pkgname-$pkgver.tar.gz::https://github.com/falcosecurity/falco/archive/refs/tags/$pkgver.tar.gz
  alpine.patch
  falco.patch
  rules.patch
  "

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

  # Disable static binaries
  patch -i $srcdir/alpine.patch
}

build() {
  cd build

  cmake \
    -DCPACK_GENERATOR=TGZ \
    -DCMAKE_BUILD_TYPE=Release \
    -DFALCO_VERSION=$pkgver \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DFALCO_ETC_DIR=/etc/falco \
    -DUSE_BUNDLED_DEPS=Off \
    -DBUILD_SHARED_LIBS=On \
    -DMUSL_OPTIMIZED_BUILD=On \
    -DBUILD_DRIVER=Off \
    -DBUILD_BPF=Off \
    -DBUILD_LIBSCAP_MODERN_BPF=Off \
    ..

  make falco falcoctl
}

package() {
  cd build
  make DESTDIR="${pkgdir}" install

  # patch falco config
  cd $pkgdir/etc/falco
  patch -i $srcdir/falco.patch
  patch -i $srcdir/rules.patch
  
  # We dont build anything on targets so remove sources
  rm -rf $pkgdir/usr/src
  rm -rf $pkgdir/usr/lib
  rm -rf $pkgdir/usr/include
}

sha512sums="
a3fef235ab4f3121bd0400827712652530ec417498c44ada8b6bf565f7631d035673b53dad94ea6ae9c854d45202ed71b2771f19e0c92eea3fc3503e5b75b02e  falco-0.36.2.tar.gz
8ff7a677f723f2d4a09808939500ddff81f15b8a62a2e091d8042765d105d30b67f9993d05ef129dfad6c866ea37d608a3ae9bc7e99730995542f8b5181ba594  alpine.patch
b152fcf6cd81895efa37797ab7ff1aac7350b5f51f2648aa9e3cce9d5ece55791ddf82c396e9da216293e2379a785a294cc972f28a91162dc5bc88ab09e1ab08  falco.patch
d8f71ca7c6d854a866826b3f2f5630b6f30448f794c4c5a56a9ea656ee03c3645a1cf7663b5e79d3ea63d4fab8bd44f91a80b1752c8239c8310efa08b495f2e2  rules.patch
"