#42 #37 update. #30

	# Created this action based on information found in:
	# - <https://docs.platformio.org/en/latest/integration/ci/github-actions.html>
	# - <https://docs.github.com/en/free-pro-team@latest/actions/quickstart>
	name: build-platformio
	on: [push, pull_request, workflow_dispatch]
	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	- name: Cache pip
	uses: actions/cache@v2
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
	restore-keys: \|
	${{ runner.os }}-pip-
	- name: Cache PlatformIO
	uses: actions/cache@v2
	with:
	path: ~/.platformio
	key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
	- name: Set up Python
	uses: actions/setup-python@v2
	- name: Install PlatformIO
	run: \|
	python -m pip install --upgrade pip
	pip install --upgrade platformio
	- name: Update test code environments.
	run: \|
	platformio project init
	sed -i -e "s/XXX/10/g" ./examples/coaptest/coaptest.ino
	sed -i -e "s/XXX/10/g" ./examples/esp8266/esp8266.ino
	sed -i -e "s/XXX/10/g" ./examples/esp32/esp32.ino
	mkdir lib/coap-simple/
	mv coap-simple* lib/coap-simple/
	mv ./examples/coaptest/coaptest.ino src/
	pio init -b esp32thing -b uno
	pio lib install Ethernet
	pio init -b nodemcuv2
	- name: Run PlatformIO(uno)
	run: pio run -e uno
	- name: Run PlatformIO(esp8266)
	run: pio run -e nodemcuv2
	- name: Run PlatformIO(esp32)
	run: pio run -e esp32thing

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