feat: generic linter, absorbing `cdot` linter and `attribute [instance] in` linter #44854


	on:
	pull_request

	name: lint and suggest

	jobs:
	style_lint:
	if: github.repository == 'leanprover-community/mathlib4' && github.event.pull_request.draft == false
	name: Lint style
	runs-on: ubuntu-latest
	steps:
	- name: cleanup
	run: \|
	find . -name . -o -prune -exec rm -rf -- {} +

	- uses: actions/checkout@v4

	- name: install Python
	uses: actions/setup-python@v4
	with:
	python-version: 3.8

	- name: lint
	continue-on-error: true
	run: \|
	./scripts/lint-style.sh --fix

	- name: suggester / lint-style
	uses: reviewdog/action-suggester@v1
	with:
	tool_name: lint-style

	- name: Install bibtool
	run: \|
	sudo apt-get update
	sudo apt-get install -y bibtool

	- name: lint references.bib
	continue-on-error: true
	run: \|
	./scripts/lint-bib.sh

	- name: suggester / lint-bib
	uses: reviewdog/action-suggester@v1
	with:
	tool_name: lint-bib

	check_imported:
	if: github.repository == 'leanprover-community/mathlib4' && github.event.pull_request.draft == false
	name: Check all files imported
	runs-on: ubuntu-latest
	steps:
	- name: cleanup
	run: \|
	find . -name . -o -prune -exec rm -rf -- {} +

	- uses: actions/checkout@v4

	- name: install elan
	run: \|
	set -o pipefail
	curl -sSfL https://github.com/leanprover/elan/releases/download/v3.1.1/elan-x86_64-unknown-linux-gnu.tar.gz \| tar xz
	./elan-init -y --default-toolchain none
	echo "$HOME/.elan/bin" >> "${GITHUB_PATH}"

	- name: update {Mathlib, Tactic, Counterexamples, Archive}.lean
	run: lake exe mk_all

	- name: suggester / import list
	uses: reviewdog/action-suggester@v1
	with:
	tool_name: imports

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