Merge pull request #4 from homebridge/nextVersion #6

	name: CI

	on:
	push:
	tags:
	- 'v*'

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	- name: Get the version (git tag)
	id: get_version
	run: \|
	echo ${GITHUB_REF/refs\/tags\//}
	echo ::set-output name=VERSION::${GITHUB_REF/refs\/tags\//}
	- name: Build Image
	run: \|
	docker build -t boot2homebridge .
	docker run --rm boot2homebridge > homebridge-vm-image.iso
	- name: Calculate Checksum
	id: get_sha256_checksum
	run: \|
	export IMAGE_SHA256_CHECKSUM=$(shasum -a 256 homebridge-vm-image.iso \| awk '{print $1}')
	echo "$IMAGE_SHA256_CHECKSUM homebridge-vm-image.iso"
	echo ::set-output name=IMAGE_SHA256_CHECKSUM::${IMAGE_SHA256_CHECKSUM}
	- name: Create Release
	id: create_release
	uses: actions/create-release@v1
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	with:
	tag_name: ${{ github.ref }}
	release_name: ${{ github.ref }}
	body: \|
	Click the link below to start your download:

	<span align="center">

	### [homebridge-vm-image.iso](https://github.com/homebridge/homebridge-vm-image/releases/download/${{ steps.get_version.outputs.VERSION }}/homebridge-vm-image.iso)

	</span>

	---
	* SHA-256: ${{ steps.get_sha256_checksum.outputs.IMAGE_SHA256_CHECKSUM }}
	draft: false
	prerelease: true
	- name: Upload Image
	id: upload-release-asset
	uses: actions/upload-release-asset@v1
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	with:
	upload_url: ${{ steps.create_release.outputs.upload_url }}
	asset_path: homebridge-vm-image.iso
	asset_name: homebridge-vm-image.iso
	asset_content_type: application/x-iso9660-image

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