helper.gradle

//Other methods
def getGitHash() {
  def stdout = new ByteArrayOutputStream()
  exec {
    commandLine 'git', 'rev-parse', '--short', 'HEAD'
    standardOutput = stdout
  }
  return stdout.toString().trim()
}

def static getCommitMessages() {
  def gitlog = 'git log origin/develop...HEAD --decorate'.execute().text
  if (gitlog.trim().length() > 0) return gitlog
  return 'git log -n 1 --decorate'.execute().text
}

// Export methods by turning them into closures
ext {
  getGitHash = this.&getGitHash
  getCommitMessages = this.&getCommitMessages
}