chore: lint code #247

	name: Go CI
	on:
	- push
	- pull_request
	jobs:
	lint:
	name: lint
	runs-on: ubuntu-latest
	steps:
	- uses: actions/setup-go@v3
	with:
	go-version: 1.18
	- uses: actions/checkout@v3
	- name: Cache Go modules
	uses: actions/cache@preview
	with:
	path: ~/go/pkg/mod
	key: ${{ runner.os }}-build-${{ hashFiles('**/go.sum') }}
	restore-keys: \|
	${{ runner.OS }}-build-${{ env.cache-name }}-
	${{ runner.OS }}-build-
	${{ runner.OS }}-
	- name: golangci-lint
	uses: golangci/golangci-lint-action@v3
	with:
	args: --timeout=5m
	version: latest
	# Ref https://github.com/golangci/golangci-lint-action/issues/244
	skip-pkg-cache: true
	test:
	name: Test
	runs-on: ubuntu-latest
	env:
	GOPATH: ${{ github.workspace }}/go
	defaults:
	run:
	working-directory: ${{ env.GOPATH }}/src/github.com/deb-sig/double-entry-generator
	steps:
	- name: Check out code
	uses: actions/checkout@v2
	with:
	path: ${{ env.GOPATH }}/src/github.com/deb-sig/double-entry-generator

	- name: Setup Go
	uses: actions/setup-go@v2
	with:
	go-version: 1.17.2

	- name: Check Go modules
	run: \|
	go mod tidy && git add go.*
	git diff --cached --exit-code \|\| (echo 'Please run "go mod tidy" to sync Go modules' && exit 1);
	- name: Verify gofmt
	run: \|
	make check-format && make format && git add pkg
	git diff --cached --exit-code \|\| (echo 'Please run "make format" to verify gofmt & goimports' && exit 1);
	- name: Run Go test
	run: make test

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