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#!/bin/bash
set -uex

# Run from: docker run -it --name rocky-rpm-builder -v ~/workspace/devops/packaging:/root/rpmbuild rockylinux:8 /bin/bash
# sudo docker rm rocky-rpm-builder

setup_rpm_build_env() {
  el_version=${1:-8} # default to '8'

  # Update and install required packages
  dnf install -y \
      git \
      rpm-build \
      rpmdevtools \
      dnf-plugins-core \
      gcc \
      gcc-c++ \
      make \
      cmake \
      python3 \
      python3-pip \
      openssl-devel \
      libuuid-devel \
      epel-release

  # Install build tools and dependencies
  dnf groupinstall -y "Development Tools"
  dnf install -y mock epel-release

  # enable Power Tools or CodeReady Builder depending on el version
  if [[ "$el_version" == "8" ]]; then
    dnf config-manager --set-enabled powertools
  elif [[ "$el_version" == "9" ]]; then
    dnf config-manager --set-enabled crb # CodeReady Builder
  else
    echo "Unsupported EL Version: $el_version"
    exit 1
  fi

  # ignore dpdk because want to use rpms build from daos-stack/dpdk
  dnf update -y --exclude=dpdk --exclude=dpdk-devel
}

# Function to clone, build, and install RPMs with packaging repos inside daos-stack
build_and_install_rpm() {
  local repo_name=$1
  local rpm_build_options=${2:-""}

  # Check if the directory exists - helps if running script many times while troubleshooting
  if [ ! -d "$repo_name" ]; then
    git clone https://github.com/daos-stack/$repo_name.git
    cd $repo_name
    dnf builddep -y $repo_name.spec
    make rpms RPM_BUILD_OPTIONS="$rpm_build_options"
    dnf install -y _topdir/RPMS/*/*.rpm
    cp -r _topdir/RPMS/* $rpms_dst/
    cd -
  else
    echo "The '$repo_name' folder already exists. Skipping clone and build steps."
  fi
}

get_el_version() {
  VERSION_ID=$(grep "^VERSION_ID" /etc/os-release | cut -d'=' -f2 | tr -d '"' | cut -d'.' -f1)
  echo $VERSION_ID
}

# ---- #
# MAIN #
# ---- #
rpms_dst=${1:-"~$HOME/rpmbuild/"}
build_dst="/tmp/rpmbuild/" # temp location to do the building

echo "Building RPMs for EL $(get_el_version)."
echo "RPMS will be located in $rpms_dst (built in $build_dst)"

# make sure rpm and build folders are created
mkdir -p $rpms_dst
mkdir -p $build_dst

# ------------------------------
# Build Dependency and DAOS RPMS
# ------------------------------
setup_rpm_build_env $(get_el_version)

cd $build_dst
# Call the function with the repository name as an argument
build_and_install_rpm "isa-l_crypto"
build_and_install_rpm "argobots"
build_and_install_rpm "mercury"
build_and_install_rpm "mercury"
build_and_install_rpm "dpdk" # dependency of spdk.
build_and_install_rpm "spdk"
build_and_install_rpm "pmdk" "--define '_skip_check 1'"

# DAOS and Raft (Submodule)
if [ ! -d "daos" ]; then
  git clone --recursive https://github.com/daos-stack/daos.git

  # RAFT
  cd daos/src/rdb/raft
  dnf builddep -y raft.spec
  make -f Makefile-rpm.mk
  dnf install -y _topdir/RPMS/*/*.rpm
  cp -r _topdir/RPMS/* $rpms_dst/
  cd -

  # DAOS
  cd daos
  dnf builddep -y ./utils/rpms/daos.spec
  make -C utils/rpms rpms
  cp -r utils/rpms/_topdir/RPMS/* $rpms_dst/
  cd -
fi

# --------
# Clean up
# --------
rm -rf $build_dst