add `nph` formatting linter #119

	name: CI
	on:
	push:
	branches:
	- master
	- test-*
	pull_request:
	workflow_dispatch:
	inputs:
	branch:
	default: '"stable"'

	concurrency: # Cancel stale PR builds (but not push builds)
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.sha }}
	cancel-in-progress: true

	jobs:
	build:
	strategy:
	fail-fast: false
	matrix:
	branch: ${{ fromJSON(format('[{0}]', inputs.branch \|\| '"1.2.0","1.2.x","1.4.2","1.4.x","1.6.0","1.6.x","2.0.0","2.0.x","stable","devel"')) }}

	name: 'nim-${{matrix.branch}}'
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- uses: jiro4989/setup-nim-action@v1
	with:
	nim-version: ${{ matrix.branch }}
	repo-token: ${{ secrets.GITHUB_TOKEN }}

	- name: Run tests
	run: \|
	nim --version
	env TEST_LANG="c" nimble test
	env TEST_LANG="cpp" nimble test


	lint:
	name: "Check formatting"
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	fetch-depth: 2 # In PR, has extra merge commit: ^1 = PR, ^2 = base

	- name: Check nph formatting
	# Pin nph to a specific version to avoid sudden style differences.
	run: \|
	VERSION="v0.6.0"
	ARCHIVE="nph-linux_x64.tar.gz"
	curl -L "https://github.com/arnetheduck/nph/releases/download/${VERSION}/${ARCHIVE}" -o ${ARCHIVE}
	tar -xzf ${ARCHIVE}
	./nph
	git diff --exit-code

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