pomhelper.rb

require 'nokogiri'

def open_pom
  File.open("pom.xml") { |f| Nokogiri::XML(f) }
end

def save_pom(pom)
  File.open('pom.xml','w') {|f| pom.write_xml_to f}
end

def get_version(pom)
  pom.xpath("/x:project/x:version", 'x' => 'http://maven.apache.org/POM/4.0.0').first.content
end

def set_version(pom, version)
  pom.xpath("/x:project/x:version", 'x' => 'http://maven.apache.org/POM/4.0.0').first.content = version
end

def unsnapshot(version)
  version =~ /(\d+\.\d+\.\d+)/
  $1
end

def resnapshot(version)
  version =~ /(\d+\.\d+)\.(\d+)/
  $1 + "." + ($2.to_i + 1).to_s + "-SNAPSHOT"
end