Add hash functions for group elements #8776

	name: JuliaFormatter test

	on:
	push:
	branches:
	- master
	- 'release-*'
	paths-ignore:
	- '*.md'
	- '.github/workflows/changelog.yml'
	- 'dev/releases/release_notes.py'
	pull_request:
	paths-ignore:
	- '*.md'
	- '.github/workflows/changelog.yml'
	- 'dev/releases/release_notes.py'
	workflow_dispatch:

	concurrency:
	# group by workflow and ref; the last slightly strange component ensures that for pull
	# requests, we limit to 1 concurrent job, but for the master branch we don't
	group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref != 'refs/heads/master' \|\| github.run_number }}
	# Cancel intermediate builds, but only if it is a pull request build.
	cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}

	jobs:
	check-consistent-formatting:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v5
	- uses: julia-actions/setup-julia@v2
	- uses: julia-actions/cache@v2
	- name: 'Check format with JuliaFormatter'
	run: \|
	julia etc/format_code.jl
	git status # to see which files changed
	if ! git diff-index --quiet HEAD; then
	echo "+------------------------------------------------------------------"
	echo "\| Error, detected files which are not properly formatted!"
	echo "\| Please run 'julia etc/format_code.jl' on your code and try again."
	echo "+------------------------------------------------------------------"
	exit 1
	fi
	shell: bash

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