fix: use head_ref instead of head_sha #22

	# .github/workflows/regression_tests.yml
	name: Regression Tests

	on:
	# pull_request:
	# branches:
	# - main

	jobs:
	regression_tests:
	name: regression_tests
	runs-on: ubuntu-20.04

	steps:
	- uses: actions/checkout@v3
	with:
	lfs: true
	fetch-depth: 0 # This ensures we can checkout main branch too

	- uses: actions/setup-python@v4
	with:
	python-version: '3.10'
	architecture: 'x64'

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -e ".[dev]"

	- name: Run benchmarks and compare to baseline
	if: github.event.pull_request.base.ref == 'main'
	run: \|
	# # Check if regression test results exist in main branch
	# if [ -f 'git cat-file -e main:tests/regression_test_baselines.json' ]; then
	# git checkout main tests/regression_test_baselines.json
	# else
	# echo "No regression test results found in main branch"
	# fi
	pytest -m regression
	# git checkout

Provide feedback