Refine structure. #5

	name: "Release Unity package"

	on:
	push:
	tags:
	- v1*

	jobs:
	release:
	name: release
	runs-on: ubuntu-20.04
	steps:
	# Git checkout
	- name: Checkout repository
	uses: actions/checkout@v2

	# The github.ref is, for example, refs/tags/v1.0.52
	# Generate variables like:
	# SRS_TAG=v1.0.52
	# SRS_MAJOR=1
	# @see https://docs.github.com/en/actions/reference/workflow-commands-for-github-actions#setting-an-environment-variable
	- name: Generate varaiables
	run: \|
	SRS_TAG=$(echo ${{ github.ref }}\| awk -F '/' '{print $3}')
	echo "SRS_TAG=$SRS_TAG" >> $GITHUB_ENV
	SRS_MAJOR=$(echo $SRS_TAG\| cut -c 2)
	echo "SRS_MAJOR=$SRS_MAJOR" >> $GITHUB_ENV
	SRS_FILE="objs/SRS.WebRTC.Samples.unitypackage"
	echo "SRS_FILE=$SRS_FILE" >> $GITHUB_ENV

	# Generate metadata list for Unity package.
	- name: Generate metadata list
	run: \|
	cd src
	find Assets/ -name \*.meta >> metaList
	mkdir -p objs
	- uses: pCYSl5EDgo/create-unitypackage@master
	with:
	package-path: ${{ env.SRS_FILE }}
	include-files: src/metaList

	# Create release.
	- name: Create release
	id: create_release
	uses: actions/create-release@v1
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	with:
	tag_name: ${{ github.ref }}
	release_name: Release ${{ github.ref }}
	body: \|
	${{ github.event.head_commit.message }}
	draft: false
	prerelease: false

	# Upload release source files
	- name: Upload Release Assets Source
	id: upload-release-assets-source
	uses: dwenegar/upload-release-assets@v1
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	with:
	release_id: ${{ steps.create_release.outputs.id }}
	assets_path: ${{ env.SRS_FILE }}

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