Only allow builds when `go build` also works #9

	name: Go

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]
	schedule:
	# Every day at 8am.
	- cron: "0 8 * * *"

	# Cancel running workflows on new push to a PR.
	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	tidy:
	name: Tidy
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Setup Go
	uses: actions/setup-go@v4
	with:
	go-version: '1.22.x'

	- name: gofmt
	run: cd src && test -z "$(gofmt -s -l $(find -name '*.go'))"

	- name: go mod tidy
	run: \|
	cd src
	go mod tidy
	git status
	if [[ -n "$(git status --porcelain .)" ]]; then
	echo 'go.mod/go.sum is out-of-date: run `go mod tidy` and then check in the changes'
	echo 'If `go mod tidy` results in no changes, make sure you are using the latest relase of Go'
	git status --porcelain .
	exit 1
	fi

	unit-test:
	name: Unit Test
	runs-on: ubuntu-latest
	strategy:
	matrix:
	goversion: ['1.20', '1.21.x', '1.22.x']
	steps:
	- uses: actions/checkout@v4
	with:
	path: go/src/github.com/u-root/gobusybox

	- name: Setup Go
	uses: actions/setup-go@v4
	with:
	go-version: ${{ matrix.goversion }}

	- name: Test
	run: \|
	cd go/src/github.com/u-root/gobusybox/src
	# Unit tests cover both GO111MODULE=on and off cases.
	GOPATH=$GITHUB_WORKSPACE/go go test -covermode=atomic -coverprofile=coverprofile.txt ./...

	- uses: codecov/codecov-action@v4
	env:
	CODECOV_TOKEN: 'bf25d8b2-b4f9-43f4-b578-64eefbe31e61'
	with:
	root_dir: go/src/github.com/u-root/gobusybox
	flags: ${{ matrix.goversion }}
	fail_ci_if_error: true
	verbose: true

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