feat: add gnoutil, centralizing pkg/file matching #2374

	name: misc

	on:
	push:
	branches: [ "master" ]
	pull_request:

	concurrency:
	group: ${{ github.workflow }}-${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true

	jobs:
	lint:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Install Go
	uses: actions/setup-go@v4
	with:
	go-version: 1.21.x

	- name: Lint
	uses: golangci/golangci-lint-action@v3
	with:
	# sync with misc/devdeps/go.mod
	version: v1.54
	args:
	--config=./.github/golangci.yml
	fmt:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Install Go
	uses: actions/setup-go@v4
	with:
	go-version: 1.21.x

	- name: Install make
	run: sudo apt-get install -y make

	# prefill dependencies so that mod messages don't show up in make output
	- name: Fetch dependencies
	run: go mod download -modfile ./misc/devdeps/go.mod -x

	# inspired by:
	# https://github.com/Jerome1337/gofmt-action/blob/d5eabd189843f1d568286a54578159978b7c0fb1/entrypoint.sh
	- name: Check gofumpt
	run: \|
	output="$(GOFMT_FLAGS=-l make -s fmt)"
	if [ ! -z "$output" ]; then
	echo "The following files are not properly formatted; run 'make fmt' to format them."
	echo "$output"
	exit 1
	else
	echo 'Succeeded.'
	fi
	modtidy:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Install Go
	uses: actions/setup-go@v4
	with:
	go-version: 1.21.x

	- name: Check go.mods
	run: \|
	sums="$(sha256sum go.mod misc/devdeps/go.mod)"
	for path in . ./misc/devdeps; do
	env -C $path go mod tidy -v \|\| exit 1
	done
	echo "$sums" \| sha256sum -c

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