GMT-Ghostscript incompatibility: Give recommendations and extend examples #13549

	# Code lint and style checks
	#
	# This workflow runs code style and lint checks to check if the codes have
	# consistent code style and are high-quality.
	#
	# It is run on every commit to the main and pull request branches. It is also
	# scheduled to run daily on the main branch.
	#
	name: Style Checks

	on:
	push:
	branches: [ main ]
	pull_request:
	# Schedule daily tests
	schedule:
	- cron: '0 0 * * *'

	jobs:
	style_check:
	name: Style Checks
	runs-on: ubuntu-latest

	steps:
	# Checkout current git repository
	- name: Checkout
	uses: actions/checkout@v4.1.5

	# Setup Python
	- name: Set up Python
	uses: actions/setup-python@v5.1.0
	with:
	python-version: '3.12'

	- name: Install packages
	run: \|
	python -m pip install ruff
	python -m pip list
	sudo apt-get install dos2unix

	- name: Formatting check (ruff)
	run: make check

	- name: Ensure files use UNIX line breaks and have 644 permission
	run: \|
	git ls-files -z \| xargs -0 dos2unix --quiet
	git ls-files -z \| xargs -0 chmod 644
	if [[ $(git ls-files -m) ]]; then git --no-pager diff HEAD; exit 1; fi

	- name: Ensure example scripts have at least one code block separator
	run: \|
	git ls-files 'examples/*/.py' \| xargs grep --files-without-match '# %%' > output.txt
	nfiles=$(wc --lines output.txt \| awk '{print $1}')
	if [[ $nfiles > 0 ]]; then
	echo "Code block separator '# %%' is required in following example files:"
	cat output.txt
	rm output.txt
	exit $nfiles
	fi

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