Use fmt as backend for Printf/Fprintf #5779

	name: Check formatting

	concurrency:
	# Don't cancel on master, creating a PR when a push workflow is already going will cancel the push workflow in favour of the PR workflow
	group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.run_id \|\| github.event.number && github.head_ref \|\| github.ref_name }}
	cancel-in-progress: true

	on:
	merge_group:
	push:
	branches:
	- release/**
	pull_request:
	branches:
	- master
	- release/**

	jobs:
	all:
	name: C/C++, CMake and Python
	runs-on: ubuntu-22.04
	timeout-minutes: 5
	steps:
	- uses: actions/checkout@v4
	- name: Update submodule
	working-directory: ${{runner.workspace}}/nrn
	run: git submodule update --init external/coding-conventions
	- name: Check formatting
	working-directory: ${{runner.workspace}}/nrn
	run: external/coding-conventions/bin/format -v --dry-run

	# If formatting fails, apply formatting and push changes.
	# This will trigger another workflow run, which will cancel the current one.
	- name: Apply formatting
	working-directory: ${{runner.workspace}}/nrn
	if: failure() && github.event_name == 'pull_request'
	run: \|
	# Checkout PR
	gh pr checkout ${{ github.event.pull_request.number }}

	# Apply formatting
	external/coding-conventions/bin/format -v

	# Commit & push changes
	git config --global user.name "github-actions[bot]"
	git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
	git add -u :/
	git commit -a -m "Fix formatting"
	git push
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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