# Upstream has not tagged any releases, so we use a git checkout
%global commit     b628596766a4d17fc39f07c7ff6f422bde5bc1eb
%global date       20240311
%global forgeurl   https://github.com/markusa4/sassy

# There are no ELF objects in this package, so turn off debuginfo generation.
%global debug_package %{nil}

Name:           sassy
Version:        0
Summary:        Preprocessor for symmetry detection in sparse graphs

%forgemeta

License:        MIT
Release:        %autorelease
URL:            %{forgeurl}
Source0:        %{forgesource}
Source1:        %{name}-nauty-test.cxx
Source2:        %{name}-nauty-test-output

BuildRequires:  gcc-c++
BuildRequires:  libnauty-devel

%global _desc %{expand:
The sassy preprocessor is designed to shrink large, sparse graphs.
Before giving a graph to an off-the-shelf symmetry detection solver
(such as bliss, dejavu, nauty, saucy, or Traces), the graph is instead
first handed to the preprocessor.  The preprocessor shrinks the graph,
in turn hopefully speeding up the subsequent solver.

Some technicalities apply, though: a hook for symmetries must be given
to sassy (a sassy_hook), and symmetries of the reduced graph must be
translated back to the original graph.  The preprocessor can do the
reverse translation automatically, by providing a special hook that is
in turn given to the backend solver.

The preprocessor comes in the form of a C++ header-only library and uses
some features of C++17.}

%description %_desc

%package devel
Summary:        Preprocessor for symmetry detection in sparse graphs
BuildArch:      noarch
Provides:       %{name}-static = %{version}-%{release}

%description devel %_desc

%prep
%forgeautosetup

%build
# Nothing to do

%install
mkdir -p %{buildroot}%{_includedir}/%{name}
cp -a *.h tools %{buildroot}%{_includedir}/%{name}

%check
g++ %{build_cxxflags} -I %{buildroot}%{_includedir} %{SOURCE1} -o nauty-test \
    %{build_ldflags} -lnauty
./nauty-test | cmp -s %{SOURCE2} -

%files devel
%doc README.md
%license LICENSE
%{_includedir}/%{name}/

%changelog
%autochangelog