Improve Stackage nightly workflow to automatically create an issue if it fails #1275

	name: "Stackage Nightly"

	on:
	schedule:
	- cron: "5 6 * * *"
	workflow_dispatch:
	pull_request:
	push:
	paths:
	- ".github/workflows/stackage-nightly.yml"

	permissions:
	contents: read
	issues: write

	jobs:
	build:
	name: "Build (Nightly)"
	runs-on: ubuntu-latest

	steps:
	- name: "Clone repository"
	uses: actions/checkout@v4

	- name: "Build using nightly resolver"
	uses: mbg/actions/stack/[email protected]

	- name: "Fail on purpose"
	run: exit 1

	- name: "Create issue"
	if: failure()
	run: \|
	previous_issue_number=$(gh issue list \
	--label "stackage-nightly-failure" \
	--json number \
	--jq '.[0].number')
	if [[ -n $previous_issue_number ]]; then
	# don't create a new issue if there's already one
	exit 0
	fi

	gh issue create --assignee "mbg" \
	--label "stackage-nightly-failure"
	--title "Stackage Nightly build failed" \
	--body "The workflow at ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }} failed"

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