add suggestion to use cache if no depot is detected #103

	name: CI

	on:
	push:
	branches:
	- "main"
	- "master"
	paths-ignore:
	- "README.md"
	- "LICENSE"
	pull_request:
	paths-ignore:
	- "README.md"
	- "LICENSE"

	jobs:
	test:
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	version:
	- "1.0"
	- "1" # automatically expands to the latest stable 1.x release of Julia
	- nightly
	os:
	- ubuntu-latest
	- macOS-latest
	- windows-latest
	arch:
	- x64
	- x86
	pkg-server:
	- ""
	- "pkg.julialang.org"
	# 32-bit Julia binaries are not available on macOS
	exclude:
	- os: macOS-latest
	arch: x86

	steps:
	- name: Checkout Example.jl
	uses: actions/checkout@v2
	with:
	repository: julia-actions/Example.jl

	- name: Verify that test output file does not exist yet
	run: test ! -f "$HOME/julia-buildpkg"
	shell: bash

	- name: Checkout julia-buildpkg
	uses: actions/checkout@v2
	with:
	path: ./.github/actions/julia-buildpkg

	- uses: julia-actions/setup-julia@v1
	with:
	version: ${{ matrix.version }}
	arch: ${{ matrix.arch }}

	- uses: actions/cache@v1
	env:
	cache-name: cache-artifacts
	with:
	path: ~/.julia/artifacts
	key: ${{ runner.os }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
	restore-keys: \|
	${{ runner.os }}-test-${{ env.cache-name }}-
	${{ runner.os }}-test-
	${{ runner.os }}-

	- uses: ./.github/actions/julia-buildpkg
	env:
	JULIA_PKG_SERVER: ${{ matrix.pkg-server }}

	- uses: julia-actions/julia-runtest@v1

	- uses: julia-actions/julia-processcoverage@v1

	- uses: codecov/codecov-action@v1
	with:
	file: lcov.info

	- name: Verify that test output file exists
	run: test -f "$HOME/julia-buildpkg"
	shell: bash

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