Initialize p4est and t8code only if possible #1786

	name: format-check

	on:
	push:
	branches:
	- 'main'
	tags: '*'
	pull_request:

	jobs:
	check-format:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	julia-version: [1]
	julia-arch: [x86]
	os: [ubuntu-latest]
	steps:
	- uses: julia-actions/setup-julia@latest
	with:
	version: ${{ matrix.julia-version }}

	- uses: actions/checkout@v4
	- name: Install JuliaFormatter and format
	# This will use the latest version by default but you can set the version like so:
	#
	# julia -e 'using Pkg; Pkg.add(PackageSpec(name = "JuliaFormatter", version = "0.13.0"))'
	#
	# TODO: Change the call below to
	# format(".")
	run: \|
	julia -e 'using Pkg; Pkg.add(PackageSpec(name = "JuliaFormatter"))'
	julia -e 'using JuliaFormatter; format(["benchmark", "examples", "ext", "src", "test", "utils"])'
	- name: Format check
	run: \|
	julia -e '
	out = Cmd(`git diff --name-only`) \|> read \|> String
	if out == ""
	exit(0)
	else
	@error "Some files have not been formatted !!!"
	write(stdout, out)
	exit(1)
	end'

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