Merge pull request #11 from ko-build/imjasonh-patch-1 #40

	name: Use Action

	on:
	push:
	branches: ['main']

	jobs:
	use-action:
	name: Use Action
	strategy:
	matrix:
	platform: [ubuntu-latest, macos-latest]
	runs-on: ${{ matrix.platform }}

	steps:
	- uses: actions/setup-go@v2
	with:
	go-version: 1.18
	- uses: actions/checkout@v2

	# Minimal publish
	- uses: ko-build/setup-ko@main
	- run: ko publish --bare ./

	- name: Install old release
	uses: ko-build/setup-ko@main
	with:
	version: v0.8.0
	- name: Check installed version
	run: ko version \| grep 0.8.0

	- name: Install from tip
	uses: ko-build/setup-ko@main
	with:
	version: tip
	- name: Check installed version (tip)
	run: \|
	sudo rm /usr/local/bin/ko # Uninstall previous versions.
	ko version

	# If KO_DOCKER_REPO is set during setup, it's set for future steps.
	- name: Pre-set KO_DOCKER_REPO
	uses: ko-build/setup-ko@main
	env:
	KO_DOCKER_REPO: already-set
	- name: Check pre-set KO_DOCKER_REPO
	run: \|
	if [[ "${KO_DOCKER_REPO}" != "already-set" ]]; then
	echo "${KO_DOCKER_REPO} != already-set"
	exit 1
	fi

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