ci: ignore build if cached #37

	on: push
	name: CI

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	- name: Use Node.js 20.x
	uses: actions/setup-node@v4
	with:
	node-version: 20.x
	- name: Use Python 3.10
	uses: actions/setup-python@v5
	with:
	python-version: '3.10'
	- name: Cached build
	uses: actions/cache@v2
	with:
	path: .venv
	key: ${{ runner.os }}-venv-3_10
	- uses: actions/checkout@v4
	with:
	repository: pytorch/executorch
	path: executorch
	submodules: recursive
	- name: Cached build
	uses: actions/cache@v2
	with:
	path: executorch/cmake-out
	key: ${{ runner.os }}-cmake-${{ hashFiles('executorch/kernels/.cpp') }}-${{ hashFiles('executorch/extension/.cpp') }}-${{ hashFiles('executorch/backends/.cpp') }}-${{ hashFiles('executorch/runtime/.cpp') }}
	- name: Build executorch
	run: \|
	python -m venv .venv
	source .venv/bin/activate
	cd executorch
	pip install tomli zstd setuptools wheel
	pip install --pre torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/cpu
	if [ ! -d cmake-out ]; then
	./install_requirements.sh
	cmake \
	-S . \
	-B cmake-out \
	-DCMAKE_INSTALL_PREFIX=cmake-out \
	-DEXECUTORCH_BUILD_XNNPACK=ON \
	-DEXECUTORCH_BUILD_EXTENSION_DATA_LOADER=ON \
	-DEXECUTORCH_BUILD_EXTENSION_MODULE=ON
	cmake --build cmake-out --target install --config Release
	fi
	- name: Install dependencies
	run: yarn install
	- name: Build
	run: yarn build --CDCMAKE_PREFIX_PATH=$(realpath executorch/cmake-out) --CDEXECUTORCH_SRC_ROOT=$(realpath executorch)
	- name: Run tests
	run: yarn test

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