[PATCH] Correctly handle URLs for self-managed gitlab #46

	name: PR code check

	on:
	pull_request:

	jobs:
	code_checks:
	uses: ./.github/workflows/_code_checks.yml

	count_commits:
	needs: code_checks
	runs-on: ubuntu-latest
	outputs:
	n_commits: ${{ steps.count_commits.outputs.n_commits }}
	steps:
	- name: checkout current branch
	uses: actions/checkout@v2
	with:
	fetch-depth: 0

	- name: count commits from main
	id: count_commits
	run: \|
	git fetch
	N_COMMITS=$(git rev-list origin/main.. --count)
	echo "::set-output name=n_commits::${N_COMMITS}"

	add_empty_commit_if_only_one:
	needs: count_commits
	runs-on: ubuntu-latest
	# 2 commits because the PR code gets merged into a temp commit on main
	if: ${{ (!!needs.count_commits.outputs.n_commits) && needs.count_commits.outputs.n_commits <= 2 }}
	steps:

	- name: checkout current branch
	uses: actions/checkout@v2
	with:
	repository: ${{ github.event.pull_request.head.repo.full_name }}
	ref: ${{ github.event.pull_request.head.ref }}

	- uses: EndBug/add-and-commit@v8
	with:
	default_author: github_actions
	message: 'Add empty commit to force use PR title during squash merge'
	commit: --allow-empty
	add: '.' # working tree should be clean
	push: true

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