LEDC: Add examples/ledc_check.c for check freq and duty (Issue report). (IDFGH-14067) #1678

	name: Check pre-commit rules

	on:
	pull_request:
	types: [opened, reopened, synchronize]

	permissions:
	contents: read

	jobs:
	pre_commit_check:
	runs-on: ubuntu-latest
	env:
	SKIP: "cleanup-ignore-lists" # Comma-separated string of ignored pre-commit check IDs
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- name: Fetch head and base refs
	# This is necessary for pre-commit to check the changes in the PR branch
	run: \|
	git fetch origin ${{ github.base_ref }}:base_ref
	git fetch origin pull/${{ github.event.pull_request.number }}/head:pr_ref
	- name: Set up Python environment
	uses: actions/setup-python@master
	with:
	python-version: v3.8
	- name: Install python packages
	run: \|
	pip install pre-commit
	pre-commit install-hooks
	- name: Run pre-commit and check for any changes
	run: \|
	echo "Commits being checked:"
	git log --oneline --no-decorate base_ref..pr_ref
	echo ""
	if ! pre-commit run --from-ref base_ref --to-ref pr_ref --show-diff-on-failure ; then
	echo ""
	echo "::notice::It looks like the commits in this PR have been made without having pre-commit hooks installed."
	echo "::notice::Please see https://docs.espressif.com/projects/esp-idf/en/latest/esp32/contribute/install-pre-commit-hook.html for instructions."
	echo ""
	exit 1
	fi
	# Run pre-commit for PowerShell scripts check
	pre-commit run --hook-stage manual check-powershell-scripts --from-ref base_ref --to-ref pr_ref --show-diff-on-failure

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