add helm linter github action #9

	---
	# Helm chart lint
	# More info at https://github.com/helm/chart-testing-action
	name: Lint Helm Charts

	on: pull_request

	jobs:
	lint-test:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	with:
	fetch-depth: 0

	- name: Set up Helm
	uses: azure/[email protected]
	with:
	version: v3.13.3

	- uses: actions/setup-python@v5
	with:
	python-version: '3.x'
	check-latest: true

	- name: Set up chart-testing
	uses: helm/[email protected]

	- name: Collect chart directories
	id: collect-chart-dirs
	run: \|
	CHART_DIRS=$(find . -type f -name 'Chart.yaml' -printf '%h\n' \|sed 's\|^\./\|\|' \| xargs -I {} dirname {} \| sort -u \| tr '\n' ',' \| sed 's/,$//' )
	echo "found charts in the following directories ${CHART_DIRS}"
	echo "CHART_DIRS=$CHART_DIRS" >> GITHUB_ENV

	- name: Run chart-testing (list-changed)
	id: list-changed
	run: \|
	changed=$(ct list-changed --chart-dirs=${CHART_DIRS} --target-branch ${{ github.event.repository.default_branch }})
	if [[ -n "$changed" ]]; then
	echo "changed=true" >> "$GITHUB_ENV"
	fi

	- name: Run chart-testing (lint)
	# if: $changed == 'true'
	run: \|
	echo "Running helm linter on charts in the following directories:\n${CHART_DIRS}"
	ct lint \
	--chart-dirs=${CHART_DIRS} \
	--all --validate-maintainers=false \
	--target-branch ${{ github.event.repository.default_branch }}

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