# The test suite isn't normally run. It can be enabled with "--with=check".
%bcond_with check

# Upstream source information.
%global upstream_owner    AdaCore
%global upstream_name     langkit
%global upstream_version  25.0.0
%global upstream_gittag   v%{upstream_version}

Name:           liblktlang
Version:        %{upstream_version}
Release:        1%{?dist}
Summary:        Language parser for the langkit DSL

License:        Apache-2.0 WITH LLVM-Exception

URL:            https://github.com/%{upstream_owner}/%{upstream_name}
Source:         %{url}/archive/%{upstream_gittag}/%{upstream_name}-%{upstream_version}.tar.gz

# [Fedora-specific] Generation of standalone code not supported: no bundling.
Patch:          %{name}-generation-of-standalone-code-not-supported.patch

BuildRequires:  gcc-gnat gprbuild sed
# A fedora-gnat-project-common that contains the new GPRinstall macro.
BuildRequires:  fedora-gnat-project-common >= 3.21
BuildRequires:  langkit-devel
BuildRequires:  python3-devel

# Build only on architectures where GPRbuild is available.
ExclusiveArch:  %{GPRbuild_arches}

# An additional provides to help users find the package.
Provides:   python3-%{name}

%global common_description_en \
Language parser for the langkit DSL.

%description %{common_description_en}


#################
## Subpackages ##
#################

%package devel
Summary:    Development files for the LKT parser
Requires:   %{name}-support%{?_isa} = %{version}-%{release}
Requires:   fedora-gnat-project-common
Requires:   gnatcoll-core-devel
Requires:   gnatcoll-gmp-devel
Requires:   gnatcoll-iconv-devel
Requires:   langkit-devel
Requires:   libprettier_ada-devel

%description devel %{common_description_en}

This package contains source code and linking information for developing
applications that use the LKT parser. It also contains the Python API.


#############
## Prepare ##
#############

%prep
%autosetup -n %{upstream_name}-%{upstream_version} -p1

cd ./contrib/lkt

# Generate the source code.
# -- ignore undocumented nodes, following `manage.py make`.
%python3 manage.py generate --library-types=relocatable --version='%{version}' \
                            --disable-warning=undocumented-nodes

# ??? Version does not propagate into `setup.py`.
sed --in-place \
    --expression 's/version='\''0.1'\''/version='\''%{version}'\''/'\
    build/python/setup.py

# Scenario variables for GRPbuild project.
%global scn_vars -XVERSION=%{version} \\\
                 -XBUILD_MODE=prod \\\
                 -XLIBRARY_TYPE=relocatable

# Generate BuildRequires for the Python bindings.
%generate_buildrequires
%pyproject_buildrequires


###########
## Build ##
###########

%build

# As libltklang.gpr is generated and does not contain a Library_Version
# attribute, we set the soname manually, and create a proper symbolic
# link later, after running GPRinstall.
%global GPRbuild_flags_soname -largs -Wl,-soname=%{name}.so.%{version} -gargs

# Build the library. Use extensions and the latest Ada version (-gnatX).
gprbuild %{GPRbuild_flags} %{GPRbuild_flags_soname} %{scn_vars} \
         -cargs:Ada -gnatX -gargs -XSTANDALONE=no \
         -P contrib/lkt/build/%{name}.gpr

# Build the tools.
gprbuild %{GPRbuild_flags} %{scn_vars} \
         -cargs -fPIE -largs -L./lib -gargs \
         -P contrib/lkt/build/mains.gpr

# Build the Python binding.
pushd . && cd contrib/lkt/build/python
%pyproject_wheel
popd


#############
## Install ##
#############

%install

# Install the language parsers.
%{GPRinstall} %{scn_vars} --no-build-var -P contrib/lkt/build/%{name}.gpr
%{GPRinstall} %{scn_vars} --mode=usage   -P contrib/lkt/build/mains.gpr

# Install Python API.
%pyproject_install
%pyproject_save_files %{name}

# Now we rename the library...
mv %{buildroot}%{_libdir}/%{name}.so \
   %{buildroot}%{_libdir}/%{name}.so.%{version}

# ...and create the symbolic link manually.
ln --symbolic --no-target-directory %{name}.so.%{version} \
   %{buildroot}%{_libdir}/%{name}.so

# Make the generated usage project file architecture-independent.
sed --regexp-extended --in-place \
    '--expression=1i with "directories";' \
    '--expression=/^--  This project has been generated/d' \
    '--expression=s|^( *for +Source_Dirs +use +).*;$|\1(Directories.Includedir \& "/%{name}");|i' \
    '--expression=s|^( *for +Library_Dir +use +).*;$|\1Directories.Libdir;|i' \
    '--expression=s|^( *for +Library_ALI_Dir +use +).*;$|\1Directories.Libdir \& "/%{name}";|i' \
    %{buildroot}%{_GNAT_project_dir}/%{name}.gpr
# The Sed commands are:
# 1: Insert a with clause before the first line to import the directories
#    project.
# 2: Delete a comment that mentions the architecture.
# 3: Replace the value of Source_Dirs with a pathname based on
#    Directories.Includedir.
# 4: Replace the value of Library_Dir with Directories.Libdir.
# 5: Replace the value of Library_ALI_Dir with a pathname based on
#    Directories.Libdir.


###########
## Files ##
###########

%files -f %pyproject_files
%license LICENSE.txt
%{_libdir}/%{name}.so.%{version}
%{_bindir}/lkt_parse
%{_bindir}/lkt_unparse
%{_bindir}/lkt_toolbox

%files devel
%{_GNAT_project_dir}/%{name}.gpr
%{_includedir}/%{name}
%dir %{_libdir}/%{name}
%attr(444,-,-) %{_libdir}/%{name}/*.ali
%{_libdir}/%{name}.so


###############
## Changelog ##
###############

%changelog
* Sun Oct 27 2024 Dennis van Raaij <dvraaij@fedoraproject.org> - 25.0.0-1
- New package.