Several code/performance improvements #340

	name: Tests

	on:
	pull_request:
	branches:
	- master
	types: [opened, synchronize]
	paths-ignore:
	- '*/.md'
	workflow_dispatch:

	jobs:
	lint:
	name: Lint
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- name: Set up Go from go.mod
	uses: actions/setup-go@v5
	with:
	go-version-file: 'go.mod'

	- name: golangci-lint
	uses: golangci/golangci-lint-action@v3
	with:
	version: latest

	cover:
	name: Coverage
	runs-on: ubuntu-22.04

	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	cache: true
	go-version: '1.22'

	- name: Test and write coverage profile
	run: make cover

	- name: Upload coverage results to Codecov
	uses: codecov/codecov-action@v4
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	slug: nspcc-dev/neofs-rest-gw
	fail_ci_if_error: true
	files: ./coverage.txt
	verbose: true

	tests:
	name: Tests
	runs-on: ubuntu-22.04
	strategy:
	matrix:
	go_versions: [ '1.20', '1.21' ] # The latest is used by Coverage already.
	fail-fast: false
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	cache: true
	go-version: '${{ matrix.go_versions }}'

	- name: Run tests
	run: make test

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