Close an Epic when all the Issues Under that Epic are Closed

def epicIssue = issue.epic

if (!epicIssue) {
    return
}

// Find all unresolved stories
def openStories = epicIssue.stories.findAll { !it.resolution }

// If there are still open stories (except the one in transition) - then do nothing
if (openStories.size() > 1) {
    return
}

epicIssue.transition('Done') {
    setComment('This Epic closed automatically because all the issues in this Epic are closed.')
}