Add badge (coverage). #42

	name: build
	on:
	push:
	tags:
	- v*
	branches:
	- master
	- main
	pull_request:
	jobs:
	build:
	name: Build
	runs-on: ubuntu-latest
	steps:

	- name: Set up Go 1.20
	uses: actions/setup-go@v1
	with:
	go-version: 1.20
	id: go

	- name: Set up path
	run: \|
	echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
	echo "$(go env GOPATH)/bin" >> $GITHUB_PATH
	shell: bash

	- name: Check out code into the Go module directory
	uses: actions/checkout@v1

	- name: Get dependencies
	run: \|
	go mod download
	go mod verify

	- name: Build
	run: make build

	- name: Test
	run: make test

	- name: Go Coverage Badge # Pass the `coverage.out` output to this action
	uses: tj-actions/coverage-badge-go@v2
	with:
	filename: coverage.out

	- name: Verify Changed files
	uses: tj-actions/verify-changed-files@v12
	id: verify-changed-files
	with:
	files: README.md

	- name: Commit changes
	if: steps.verify-changed-files.outputs.files_changed == 'true'
	run: \|
	git config --local user.email "action@github.com"
	git config --local user.name "GitHub Action"
	git add README.md
	git commit -m "chore: Updated coverage badge."

	- name: Push changes
	if: steps.verify-changed-files.outputs.files_changed == 'true'
	uses: ad-m/github-push-action@master
	with:
	github_token: ${{ github.token }}
	branch: ${{ github.head_ref }}

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