Restore backward after each batch for grad accum #4913

	name: Lint

	on:
	pull_request:
	workflow_dispatch:


	concurrency:
	group: lint-${{ github.workflow }}-${{ github.ref == 'refs/heads/main' && github.run_number \|\| github.ref }}
	cancel-in-progress: true

	defaults:
	run:
	shell: bash -l -eo pipefail {0}

	jobs:
	lint:
	if: github.repository_owner == 'pytorch'
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ['3.10']
	steps:
	- name: Check out repo
	uses: actions/checkout@v3
	- name: Setup python
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Update pip
	run: python -m pip install --upgrade pip
	- name: Install lint utilities
	run: \|
	python -m pip install pre-commit
	pre-commit install-hooks
	- name: Get changed files
	id: changed-files
	uses: tj-actions/[email protected]
	- name: Lint modified files
	run: pre-commit run --files ${{ steps.changed-files.outputs.all_changed_files }}

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