[stable27] Ensure that the hash method does not return null #33628

	# This workflow is provided via the organization template repository
	#
	# https://github.com/nextcloud/.github
	# https://docs.github.com/en/actions/learn-github-actions/sharing-workflows-with-your-organization
	#
	# SPDX-FileCopyrightText: 2022-2024 Nextcloud GmbH and Nextcloud contributors
	# SPDX-License-Identifier: MIT

	name: Block merges for EOL

	on: pull_request

	permissions:
	contents: read

	concurrency:
	group: block-merge-eol-${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true

	jobs:
	block-merges-eol:
	name: Block merges for EOL branches

	# Only run on stableXX branches
	if: startsWith( github.base_ref, 'stable')
	runs-on: ubuntu-latest-low

	steps:
	- name: Set server major version environment
	run: \|
	# retrieve version number from branch reference
	server_major=$(echo "${{ github.base_ref }}" \| sed -En 's/stable//p')
	echo "server_major=$server_major" >> $GITHUB_ENV
	echo "current_month=$(date +%Y-%m)" >> $GITHUB_ENV

	- name: Checking if ${{ env.server_major }} is EOL
	run: \|
	curl -s https://raw.githubusercontent.com/nextcloud-releases/updater_server/production/config/major_versions.json \
	\| jq '.["${{ env.server_major }}"]["eol"] // "9999-99" \| . >= "${{ env.current_month }}"' \
	\| grep -q true

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