%global pypi_name executorch

Name:          python-%{pypi_name}
Version:       1.3.1
Release:       0%{?dist}
Summary:       On-device AI across mobile, embedded and edge for PyTorch
License:       BSD-3-Clause
URL:           https://pytorch.org/executorch/
Source0:       https://github.com/pytorch/executorch/archive/%{version}.tar.gz#/%{pypi_name}-%{version}.tar.gz

# Patches to use various systems libraries, the intention
# is to work to get these upstream (if possible)
Patch1:        executorch-toplevel-system-libs.patch
Patch2:        executorch-use-system-libs.patch
Patch3:        executorch-xnnpack-dependencies.patch
Patch4:        executorch-xnnpack-cmakelists.patch
Patch5:        executorch-toplevel-tokenizers.patch
Patch6:        executorch-toplevel-pybind-python-embed.patch
Patch7:        executorch-use-system-flatcc.patch
Patch8:        executorch-eigenblas-system.patch
Patch9:        executorch-pybind11-python-dev-fix.patch
Patch10:       executorch-coreml-pybind-python-embed.patch

ExclusiveArch: x86_64 aarch64
BuildRequires: git-core
BuildRequires: gcc gcc-c++
BuildRequires: cpuinfo-devel
BuildRequires: flatbuffers-devel
BuildRequires: flatbuffers-compiler
BuildRequires: flatcc-devel
BuildRequires: flexiblas-devel
BuildRequires: fxdiv-devel
BuildRequires: gflags-devel
BuildRequires: json-devel
BuildRequires: pthreadpool-devel
BuildRequires: pybind11-devel
BuildRequires: python3-cmake
BuildRequires: python3-devel
BuildRequires: python3-pip
BuildRequires: python3-setuptools
BuildRequires: python3-torch
BuildRequires: python3-pytorch-tokenizers-devel
BuildRequires: xnnpack-devel

%global _description %{expand:
ExecuTorch is PyTorch's unified solution for deploying AI models
on-device—from smartphones to microcontrollers—built for privacy,
performance, and portability. It powers Meta's on-device AI across
Instagram, WhatsApp, Quest 3, Ray-Ban Meta Smart Glasses, and more.

Deploy LLMs, vision, speech, and multimodal models with the same
PyTorch APIs you already know—accelerating research to production
with seamless model export, optimization, and deployment. No manual
C++ rewrites. No format conversions. No vendor lock-in.
}

%description %_description

%package -n     python3-%{pypi_name}
Summary:        %{summary}

%description -n python3-%{pypi_name} %_description


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

# Allow for versioned executorch directories
sed -i 's/STREQUAL "executorch"/MATCHES "^executorch(-.*)?$"/' CMakeLists.txt
# Adjust for Fedora python version minimums
sed -i 's/>=3.10,<3.14/>=3.10/' pyproject.toml
# Adjust for Fedora cmake versions
sed -i 's/,<4.0.0//g' pyproject.toml
sed -i 's/, <4.0.0//g' requirements-dev.txt
# Fedora has 1.4.x
sed -i 's/mpmath==1.3.0/mpmath>=1.3.0/' pyproject.toml
# Fedora has 1.8
sed -i 's/scikit-learn==1.7.1/scikit-learn>=1.7.1/' pyproject.toml
# Fedora has 9.x
sed -i 's/pytest<9.0/pytest/' pyproject.toml
# Fedora has 15.0
sed -i 's/pytest-rerunfailures==15.1/pytest-rerunfailures==15.0/' pyproject.toml
# Complements patch8 needs a better fix
sed -i '/pybind11_add_module(selective_build SHARED/i find_package(Python3 COMPONENTS Interpreter Development.Embed REQUIRED)' codegen/tools/CMakeLists.txt
sed -i '/pybind11_add_module($/i \  find_package(Python3 COMPONENTS Interpreter Development.Embed REQUIRED)' extension/training/CMakeLists.txt
sed -i '/pybind11_add_module($/i \  find_package(Python3 COMPONENTS Interpreter Development.Embed REQUIRED)' extension/llm/runner/CMakeLists.txt

%generate_buildrequires
%pyproject_buildrequires


%build
export CMAKE_ARGS="-DEXECUTORCH_USE_SYSTEM_LIBS=ON -DEXECUTORCH_XNNPACK_USE_SYSTEM_LIBS=ON \
                   -DEXECUTORCH_BUILD_OPENVINO=OFF -DEXECUTORCH_BUILD_DEVTOOLS=OFF \
                   -DEXECUTORCH_ENABLE_EVENT_TRACER=OFF -DEXECUTORCH_BUILD_SHARED=ON \
                   -DEXECUTORCH_BUILD_EXTENSION_LLM=OFF -DEXECUTORCH_BUILD_EXTENSION_LLM_RUNNER=OFF \
                   -DEXECUTORCH_BUILD_COREML=OFF"

%pyproject_wheel


%install
%pyproject_install
%pyproject_save_files -l %{pypi_name}


%files -n python3-%{pypi_name} -f %{pyproject_files}
%doc README.md

%changelog
* Sun Oct 19 2025 Peter Robinson <pbrobinson@fedoraproject.org> - 1.0.0-1
- Initial package