Bump actions/checkout from 3 to 4 #57

	name: CI

	on:
	push:
	branches: [ main ]
	pull_request: {}

	jobs:

	check:
	runs-on: ubuntu-latest
	name: Check w/ ${{ matrix.deno-version }}
	strategy:
	matrix:
	deno-version:
	- v2.0
	- v2.1
	- canary
	fail-fast: false # run each branch to completion

	steps:
	- name: Checkout source
	uses: actions/checkout@v4

	- name: Use Deno ${{ matrix.deno-version }}
	uses: denoland/setup-deno@v1
	with:
	deno-version: ${{ matrix.deno-version }}

	# "https" cache: code from the Internet
	# External sources won't change much so we use less precise keys
	- name: Cache https://
	uses: actions/cache@v3
	with:
	path: \|
	~/.cache/deno/remote/https
	~/.cache/deno/gen/https
	key: deno-https/v2-${{ github.sha }}
	restore-keys: deno-https/v2-


	- name: Check index.ts
	run: time deno check ./lib/index.ts

	- name: Run examples/v2/ping.ts
	run: time ./examples/v2/ping.ts docker.io

	- name: Test
	run: time deno test --allow-net ./test/*.ts

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