%if 0%{?epel}
# EPEL status as of 2026-04-05:
# EPEL 9: fails on a weird error in %%pyproject_install
%bcond optimized_init %[%epel >= 10]
# No python-mcp yet in EPEL
%bcond mcp 0
%else
%bcond optimized_init 1
%bcond mcp %[0%{?fedora} >= 43]
%endif

%global forgeurl https://github.com/arighi/virtme-ng

Version:        1.41
%forgemeta
Name:           virtme-ng
Release:        %autorelease
Summary:        Quickly build and run kernels inside a virtualized snapshot of your live system
# Code license:
# - GPL-2.0-only
# - GPL-3.0-only (virtme_ng_init)
# Rust dependency licenses:
# - MIT
# - MIT OR Apache-2.0
License:        GPL-2.0-only AND GPL-3.0-only AND MIT AND (MIT OR Apache-2.0)
URL:            %forgeurl
Source:         %forgesource

%if !%{with optimized_init}
BuildArch:      noarch
%endif

BuildRequires:  python3-devel
BuildRequires:  argparse-manpage
%if %{with optimized_init}
BuildRequires:  cargo-rpm-macros >= 24
BuildRequires:  glibc-static
%endif

Recommends:     qemu-kvm
Recommends:     busybox
Recommends:     virtiofsd >= 1.7.0

# virtme-ng provides a mostly compatible CLI w.r.t. the original virtme,
# which is dead upstream, so obsolete it in favor of the new package.
Obsoletes:      virtme < 0.1.1-25
Provides:       virtme = %{version}-%{release}

%description
virtme-ng is a tool that allows to easily and quickly recompile and test a Linux
kernel, starting from the source code.

It allows to recompile the kernel in few minutes (rather than hours), then the
kernel is automatically started in a virtualized environment that is an exact
copy-on-write copy of your live system, which means that any changes made to the
virtualized environment do not affect the host system.

In order to do this a minimal config is produced (with the bare minimum support
to test the kernel inside qemu), then the selected kernel is automatically built
and started inside qemu, using the filesystem of the host as a copy-on-write
snapshot.

This means that you can safely destroy the entire filesystem, crash the kernel,
etc. without affecting the host.

Kernels produced with virtme-ng are lacking lots of features, in order to reduce
the build time to the minimum and still provide you a usable kernel capable of
running your tests and experiments.

virtme-ng is based on virtme, written by Andy Lutomirski <luto@kernel.org>.

%prep
%forgeautosetup -p1

%if 0%{?epel} && 0%{?epel} < 10
# EPEL 9: work around no PEP 604
for file in \
	virtme/util.py \
	virtme/architectures.py \
	virtme/mkinitramfs.py \
	virtme/qemu_helpers.py \
	virtme/commands/run.py
do
	sed -i \
		-e '1i from typing import Optional' \
		-e 's/\(:\|->\) \([a-zA-Z][^:->]*\) | None/\1 Optional[\2]/g' \
		$file
done
%endif

%if %{with optimized_init}
# Don't strip the debuginfo - let the rpm macros do it.
sed -i 's/\["strip", /["true", /' setup.py

cd virtme_ng_init
%cargo_prep
%endif

%generate_buildrequires
%pyproject_buildrequires %{?with_mcp:-x mcp}
%if %{with optimized_init}
cd virtme_ng_init
%cargo_generate_buildrequires
%endif

%build
%if %{with optimized_init}
export BUILD_VIRTME_NG_INIT=1
%endif
%pyproject_wheel

%if %{with optimized_init}
cd virtme_ng_init
%cargo_license_summary
%{cargo_license} > LICENSE.dependencies
%endif

%install
%pyproject_install

# Man page already installs in the right place, remove the sitelib copy
rm -rf %{buildroot}%{python3_sitelib}%{_mandir}
# These need to be moved into the right place
mv %{buildroot}%{python3_sitelib}/usr/share/* %{buildroot}%{_datadir}
rm -rf %{buildroot}%{python3_sitelib}/usr

%pyproject_save_files virtme virtme_ng

%check
%pyproject_check_import %{!?with_mcp:-e virtme_ng.mcp}

%files -f %{pyproject_files}
%license LICENSE
%if %{with optimized_init}
%license virtme_ng_init/LICENSE.dependencies
%endif
%doc README.md
%ghost %{_sysconfdir}/virtme-ng.conf
%{_bindir}/vng
%{_bindir}/virtme-ng
%{_bindir}/virtme-run
%{_bindir}/virtme-configkernel
%{_bindir}/virtme-mkinitramfs
%{_bindir}/virtme-prep-kdir-mods
%{_bindir}/virtme-ssh-proxy
%{bash_completions_dir}/{virtme-ng,vng}-prompt
%{_mandir}/man1/vng.1*
%if !%{with mcp}
%exclude %{_bindir}/vng-mcp
%endif

%if %{with mcp}
%pyproject_extras_subpkg -n %{name} mcp
%{_bindir}/vng-mcp
%endif

%changelog
%autochangelog