traceback not ephemeral #1551

	name: Lint

	on:
	push:
	branches: [ master ]
	pull_request:
	types: [ opened, reopened, synchronize ]

	jobs:
	lint:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- 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: Setup Python
	uses: actions/setup-python@v5
	with:
	python-version: 3.12

	- name: Restore cache
	uses: actions/cache@v4
	with:
	path: \|
	~/.cache/pip
	~/.cache/pre-commit
	key: ${{ runner.os }}-${{ hashFiles('.pre-commit-config.yaml') }}

	- name: Install dependencies
	run: \|
	python3 -m pip install --upgrade pip wheel
	python3 -m pip install --upgrade --upgrade-strategy eager pre-commit
	sudo apt-get install -y git

	- name: Run pre-commit
	run: \|
	pre-commit run --from-ref base_ref --to-ref pr_ref --show-diff-on-failure

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