add: generate coverage action. #1

	name: Generate Test Coverage

	on:
	push:
	branches: [ main ]
	workflow_dispatch:

	jobs:

	build:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, windows-latest]
	go: [1.20, 1.21]
	steps:
	- uses: actions/checkout@v2

	- name: Set up Go
	uses: actions/setup-go@v2
	with:
	go-version: ${{ matrix.go }}

	- name: Build
	run: go install

	- name: Test
	run: \|
	go test -v -coverpkg ./... -cover ./... -coverprofile coverage.out
	go tool cover -func coverage.out -o coverage.out

	- name: Go Coverage Badge
	uses: tj-actions/coverage-badge-go@v1
	if: ${{ runner.os == 'Linux' && matrix.go == '1.21' }}
	with:
	green: 80
	filename: coverage.out

	- uses: stefanzweifel/git-auto-commit-action@v4
	id: auto-commit-action
	with:
	commit_message: Apply Code Coverage Badge
	skip_fetch: true
	skip_checkout: true
	file_pattern: ./README.md

	- name: Push Changes
	if: steps.auto-commit-action.outputs.changes_detected == 'true'
	uses: ad-m/github-push-action@master
	with:
	github_token: ${{ github.token }}
	branch: ${{ github.ref }}

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