lint

Fix three bugs in `.zi-check-for-git-changes()` that broke `zinit self-update` #2464

	name: Lint

	on:
	pull_request:
	branches:
	- main
	push:
	branches:
	- main
	workflow_dispatch:

	jobs:
	mdlint:
	name: Markdown Lint
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v6

	- uses: xt0rted/markdownlint-problem-matcher@v3

	- run: npm install -g markdownlint-cli
	# disabled checks:
	# MD013/line-length
	# MD024/no-duplicate-heading
	# MD033/no-inline-html
	# MD034/no-bare-urls
	# MD036/no-emphasis-as-heading
	# MD041/first-line-heading/first-line-h1
	# MD059/descriptive-link-text
	# MD060/table-column-style
	- run: \|
	markdownlint --version

	# List files to lint
	ls .md /.md

	markdownlint \
	--disable MD013 MD024 MD029 MD033 MD034 MD036 MD041 MD059 MD060 \
	--ignore '**/CHANGELOG.md' \
	-- .md /.md

	zshlint:
	name: ZSH Lint
	runs-on: ubuntu-latest

	strategy:
	fail-fast: false
	matrix:
	task: [zsh-noexec, zsh-zcompile]

	steps:
	- uses: actions/checkout@v6
	with:
	fetch-depth: 0

	- uses: actions/setup-python@v6

	- name: install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install --yes zsh

	- name: "run lint (${{ matrix.task }})"
	run: \|
	case "${{ matrix.task }}" in
	zsh-noexec)
	find . -name '*.zsh' -type f -print0 \
	\| xargs -0 -n1 -P4 zsh -n
	;;
	zsh-zcompile)
	find . -name '*.zsh' -type f \
	-exec zsh -fc "zcompile {}" \;
	;;
	*)
	echo "ERROR: unknown task ${{ matrix.task }}" >&2
	exit 1
	;;
	esac

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