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perf: keep the emulator out of the qemu-user package for later builds #5

	name: pr title

	# a squash merge titles its commit after the pull request, and no hook
	# sees that commit, so the title must follow the rule lefthook checks
	on:
	pull_request:
	types:
	- opened
	- edited
	- reopened
	- synchronize

	permissions: {}

	jobs:
	conventional-commit:
	runs-on: ubuntu-latest
	steps:
	- name: check that the title follows Conventional Commits
	env:
	TITLE: ${{ github.event.pull_request.title }}
	run: \|
	pattern='^(feat\|fix\|chore\|docs\|refactor\|test\|perf\|build\|ci\|revert)!?: [^ ].*$'
	if [[ ! "$TITLE" =~ $pattern ]]; then
	echo "::error::The pull request title does not follow Conventional Commits: $TITLE"
	echo "Expected 'type: description' without a scope, for example 'fix: refuse a COPY outside the context'."
	exit 1
	fi
	echo "The pull request title is valid."