rewrite ensure_cpg_file function to prevent frequent file writing #406

	name: Ruff
	on:
	pull_request:
	push:
	branches: [ master ]

	jobs:
	ruff:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: chartboost/ruff-action@v1
	with:
	args: check --ignore E741,F841
	src: ./cea

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