# Doxygen HTML help is not suitable for packaging due to a minified JavaScript
# bundle inserted by Doxygen itself. See discussion at
# https://bugzilla.redhat.com/show_bug.cgi?id=2006555.
#
# We can enable the Doxygen PDF documentation as a substitute.
%bcond_without doc_pdf

Name:           casc
Summary:        Colored Abstract Simplicial Complex (CASC) Library
Version:        1.0.5
Release:        %autorelease

URL:            https://github.com/ctlee/casc
License:        LGPLv2+

Source0:        %{url}/archive/v%{version}/casc-%{version}.tar.gz

# This is a backport of commit 4c094080b7eaccf345dab8d78dde4d75ef51c516 from the
# development branch to the 1.0.5 release.
#
# Support using an external GoogleTest library (#13)
#
# Adds the EXTERNAL_GTEST CMake option, which defaults to OFF, preserving
# the current behavior.
#
# While this is not recommended by the GoogleTest authors, it is useful
# for Linux distribution packaging.
#
# https://github.com/ctlee/casc/pull/13
# https://github.com/ctlee/casc/commit/4c094080b7eaccf345dab8d78dde4d75ef51c516
Patch0:         casc-1.0.5-external-gtest.patch
# This backports commit 52f105bf7407e90c8bef10cce2a41b7efcb21679, “fix:
# initialize level_count memory”, from the development branch to release 1.0.5.
#
# https://github.com/ctlee/casc/pull/12
Patch1:         casc-1.0.5-levelcount-memory.patch
# This is a backport of commit 0ea03e39961312986b80eac2c9d259fc525e590e, “fix:
# Stop InnerVisitor from reading past end of array”, from the development
# branch to release 1.0.5.
#
# It fixes upstream issue #14, “Tests fail when libstdc++ assertions are
# enabled” (https://github.com/ctlee/casc/issues/14).
Patch2:         casc-1.0.5-innervisitor.patch
# Update Free Software Foundation postal addresses
#
# Ref.: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html#SEC4
#
# Note that we must not patch the license file for legal reasons
# (https://fedoraproject.org/wiki/Common_Rpmlint_issues#incorrect-fsf-address),
# but also that:
#
#  • The license file (here, COPYING.md) already has the correct address
#  • Upstream has accepted the PR corresponding to this patch
#
# https://github.com/ctlee/casc/pull/16
Patch3:         0001-Update-Free-Software-Foundation-postal-addresses.patch

BuildRequires:  gcc-c++
BuildRequires:  cmake
# The make backend would work just as well; Ninja is our choice
BuildRequires:  ninja-build

%if %{with doc_pdf}
BuildRequires:  make
BuildRequires:  doxygen
BuildRequires:  doxygen-latex
%endif

# For tests:
BuildRequires:  cmake(gtest)

# No compiled binaries are installed, so this would be empty.  However,
# packaging guidelines for header-only libraries insist that the base package
# must not be noarch:
# https://docs.fedoraproject.org/en-US/packaging-guidelines/#_use_noarch_only_in_subpackages
%global debug_package %{nil}

%global common_description %{expand:
CASC is a modern and header-only C++ library which provides a data structure to
represent arbitrary dimension abstract simplicial complexes with user-defined
classes stored directly on the simplices at each dimension. This is achieved by
taking advantage of the combinatorial nature of simplicial complexes and new
C++ code features such as: variadic templates and automatic function return
type deduction. Essentially CASC stores the full topology of the complex
according to a Hasse diagram. The representation of the topology is decoupled
from interactions of user data through the use of metatemplate programming.}

%description %{common_description}


%package devel
Summary:        %{summary}

BuildArch:  noarch

# Header-only library
# https://docs.fedoraproject.org/en-US/packaging-guidelines/#_packaging_header_only_libraries
Provides:       casc-static = %{version}-%{release}

%description devel %{common_description}


%package doc
Summary:        Documentation and examples for the casc library

BuildArch:      noarch

%description doc
%{summary}.


%prep
%autosetup -p1

%if %{with doc_pdf}
# We enable the Doxygen PDF documentation as a substitute. We must enable
# GENERATE_LATEX and LATEX_BATCHMODE; the rest are precautionary and should
# already be set as we like them. We also disable GENERATE_HTML, since we will
# not use it.
sed -r -i \
    -e "s/^([[:blank:]]*(GENERATE_LATEX|LATEX_BATCHMODE|USE_PDFLATEX|\
PDF_HYPERLINKS)[[:blank:]]*=[[:blank:]]*)NO[[:blank:]]*/\1YES/" \
    -e "s/^([[:blank:]]*(LATEX_TIMESTAMP|GENERATE_HTML)\
[[:blank:]]*=[[:blank:]]*)YES[[:blank:]]*/\1NO/" \
    doc/Doxyfile.in
%endif


%build
%cmake -DBUILD_CASCTESTS:BOOL=ON -DEXTERNAL_GTEST:BOOL=ON -GNinja
%cmake_build
%if %{with doc_pdf}
%cmake_build --target docs
%make_build -C %{_vpath_builddir}/latex
cp -p %{_vpath_builddir}/latex/refman.pdf %{_vpath_builddir}/casc.pdf
%endif


%install
%cmake_install


%check
%ctest


%files devel
%license COPYING.md

%{_includedir}/casc


%files doc
%license COPYING.md
%doc README.md
%if %{with doc_pdf}
%doc %{_vpath_builddir}/casc.pdf
%endif
%doc examples/


%changelog
%autochangelog