%global rustflags_debuginfo 1
%undefine _include_frame_pointers
%global toolchain clang

%global scheds %{shrink:
                scx_bpfland
                scx_cosmos
                scx_flash
                scx_lavd
                scx_rusty
}

Name:           scx-scheds
Version:        1.0.16
Release:        2%{?dist}
Summary:        Sched_ext Schedulers and Tools

License:        GPL-2.0-only
URL:            https://github.com/sched-ext/scx
Source:         %{url}/archive/v%{version}/%{name}-%{version}.tar.gz

BuildRequires:  /usr/bin/protoc
BuildRequires:  bpftool
BuildRequires:  cargo
BuildRequires:  clang
BuildRequires:  elfutils-libelf-devel
BuildRequires:  jq
BuildRequires:  libbpf-static
BuildRequires:  lld
BuildRequires:  llvm
BuildRequires:  pkgconfig(libseccomp)
BuildRequires:  python
BuildRequires:  rust
BuildRequires:  systemd-rpm-macros
BuildRequires:  zlib-devel

%description
sched_ext is a Linux kernel feature which enables implementing kernel thread
schedulers in BPF and dynamically loading them.

%prep
%autosetup -n scx-%{version} -p1

%build
export CARGO_HOME=.cargo
for sched in %{scheds}; do
cargo build --locked --release -p "${sched}"
done

%install
for sched in %{scheds}; do
install -Dpm0755 target/release/"${sched}" -t %{buildroot}%{_bindir}
done

install -Dpm644 services/scx -t %{buildroot}%{_sysconfdir}/default
install -Dpm644 services/systemd/scx.service -t %{buildroot}%{_unitdir}

echo 'enable scx.service' | install -Dpm0644 /dev/stdin %{buildroot}%{_prefix}/lib/systemd/system-preset/70-%{name}.preset

sed -i '/SCX_SCHEDULER=/s/scx_flash/scx_cosmos/' %{buildroot}%{_sysconfdir}/default/scx
sed -i 's/\(List of scx_schedulers:\).*/\1 %{scheds}/' %{buildroot}%{_sysconfdir}/default/scx


%post
%systemd_post scx.service

%preun
%systemd_preun scx.service

%postun
%systemd_postun_with_restart scx.service

%files
%config(noreplace) %{_sysconfdir}/default/scx
%{_bindir}/scx*
%{_unitdir}/scx.service
%{_prefix}/lib/systemd/system-preset/70-%{name}.preset

%changelog
%autochangelog