Utility method to update semantic version number. Useful when tagging a new version.

gistfile1.groovy

def updateBuildVersion(currentVersion, updateType) {
  def versionMatcher = currentVersion =~ /^(\d+)\.(\d+)\.(\d+)$/
  def major = versionMatcher[0][1].toInteger()
  def minor = versionMatcher[0][2].toInteger()
  def patch = versionMatcher[0][3].toInteger()

  if (updateType == 'patch')
    patch += 1
  else if (updateType == 'minor')
    minor += 1
  else if (updateType == 'major')
    major += 1
  else return

  def newVersion = "${major}.${minor}.${patch}"
  println "Updating current version ${currentVersion} to ${newVersion}"
  return newVersion
}