Merge pull request #4387 from akohlmey/next_release #5

	# GitHub action to build LAMMPS on MacOS and run unit tests
	name: "Unittest for MacOS"

	on:
	push:
	branches:
	- develop
	pull_request:
	branches:
	- develop

	workflow_dispatch:

	concurrency:
	group: ${{ github.event_name }}-${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: ${{github.event_name == 'pull_request'}}

	jobs:
	build:
	name: MacOS Unit Test
	if: ${{ github.repository == 'lammps/lammps' }}
	runs-on: macos-13
	env:
	CCACHE_DIR: ${{ github.workspace }}/.ccache

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 2

	- name: Install ccache
	run: brew install ccache

	- name: Create Build Environment
	run: mkdir build

	- name: Set up ccache
	uses: actions/cache@v4
	with:
	path: ${{ env.CCACHE_DIR }}
	key: macos-ccache-${{ github.sha }}
	restore-keys: macos-ccache-

	- name: Building LAMMPS via CMake
	shell: bash
	working-directory: build
	run: \|
	ccache -z
	python3 -m venv macosenv
	source macosenv/bin/activate
	python3 -m pip install numpy
	python3 -m pip install pyyaml
	cmake -C ../cmake/presets/clang.cmake \
	-C ../cmake/presets/most.cmake \
	-D DOWNLOAD_POTENTIALS=off \
	-D CMAKE_CXX_COMPILER_LAUNCHER=ccache \
	-D CMAKE_C_COMPILER_LAUNCHER=ccache \
	-D ENABLE_TESTING=on \
	-D BUILD_SHARED_LIBS=on \
	-D LAMMPS_EXCEPTIONS=on \
	../cmake
	cmake --build . --parallel 2
	ccache -s

	- name: Run Tests
	working-directory: build
	shell: bash
	run: ctest -V

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