ci: add build workflow #5

	name: build-aar-test
	on:
	push: {}

	jobs:
	android-build:
	runs-on: macos-12
	steps:
	- uses: actions/checkout@v4

	- uses: actions/setup-python@v4
	with:
	python-version: '3.10'

	- name: Install NumPy
	run: pip install --no-cache-dir --user numpy

	- name: echo
	run: \|
	echo $ANDROID_HOME
	echo $ANDROID_NDK_HOME

	- uses: nttld/setup-ndk@v1
	id: setup-ndk
	with:
	ndk-version: r21e
	add-to-path: false

	- name: Build
	run: \|
	# make a dummy OpenCV dir
	mkdir -p /usr/local/opt/opencv@3

	# remove newer build tools
	rm -rf $ANDROID_HOME/build-tools/34.*
	rm -rf $ANDROID_HOME/build-tools/33.*
	rm -rf $ANDROID_HOME/build-tools/32.*
	rm -rf $ANDROID_HOME/build-tools/31.*

	make android_arm64
	make install
	env:
	ANDROID_NDK_HOME: ${{ steps.setup-ndk.outputs.ndk-path }}

	- name: Upload mediapipe_android.aar
	uses: actions/upload-artifact@v3
	with:
	name: mediapipe_android.aar
	path: Assets/MediaPipe/SDK/Plugins/Android/mediapipe_android.aar

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