[CI/CD] pre-commit autoupdate (#3068) #1770

	name: shellcheck

	on: [pull_request, push]

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	permissions:
	contents: read

	jobs:
	shellcheck:
	if: github.event_name != 'pull_request' \|\| github.event.pull_request.head.repo.owner.login != github.event.pull_request.base.repo.owner.login
	runs-on: ubuntu-24.04
	steps:
	- name: Install xz-utils
	run: \|
	sudo apt-get -q update
	sudo DEBIAN_FRONTEND=noninteractive apt-get -qq --no-install-recommends install xz-utils
	- uses: actions/checkout@v4
	- name: Download shellcheck
	run: \|
	curl -sSfL "$(curl -sSf 'https://api.github.com/repos/koalaman/shellcheck/releases/latest' \| mawk -F\" '/"browser_download_url.*\.linux\.x86_64\.tar\.xz"/{print $4;exit}')" -o shellcheck.tar.xz
	tar --wildcards --strip-components=1 -xf shellcheck.tar.xz '*/shellcheck'
	rm shellcheck.tar.xz
	- name: Run shellcheck
	run: \|
	mapfile -t FILES < <(find . -not $ -path './.git' -prune $ -type f) # read all files to array
	for i in "${!FILES[@]}"
	do
	[[ ${FILES[$i]##/} =~ '.'[^.]'sh'$ ]] && continue # file has shell extension
	[[ $(mawk 'NR==1 && $0 ~ /^#!.*sh([[:blank:]]\|$)/{print;exit}' "${FILES[$i]}") ]] && continue # file has shell shebang
	unset -v "FILES[$i]" # else remove from array
	done
	./shellcheck -xC -o all -e SC2244,SC2250,SC2312 "${FILES[@]}"

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