svn_mvn_release.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

SVN_PATH="svn.exe"

def calc_svn_base
  `#{SVN_PATH} info`.each_line do |line|
    line = line.strip
    if line =~ /URL\: (.+)\/trunk/
      return $1
    end
  end
  fail "Failed to calculate svn_base"
end

def svn_commit(svn_base)
  pom_version = get_version(open_pom)
  `#{SVN_PATH} commit -m 'automated'`
end

def svn_create_tag(svn_base, pom_version)
  `#{SVN_PATH} cp #{svn_base}/trunk #{svn_base}/tags/#{pom_version} -m 'automated'`
end

def svn_create_branch(svn_base, pom_version)
  `#{SVN_PATH} cp #{svn_base}/trunk #{svn_base}/branches/#{pom_version} -m 'automated'`
end

svn_base = calc_svn_base

pom = open_pom
version = get_version(pom)

version = unsnapshot(version)
set_version(pom, version)
save_pom(pom)

svn_commit(svn_base)

svn_create_tag(svn_base, version)
svn_create_branch(svn_base, version)

version = resnapshot(version)
set_version(pom, version)
save_pom(pom)

svn_commit(svn_base)