spinnaker-commits.graphql

{
  repository(name: "spinnaker", owner: "spinnaker") {
    ref(qualifiedName: "master") {
      target {
        ... on Commit {
          history(first: 1) {
            edges {
              node {
                committedDate
              }
            }
            totalCount
          }
        }
      }
    }
  }
}