#!/usr/bin/ruby
#
# Ruby module that contains common functions for
# building P4Ruby
#

module P4RubyCommon
  #
  # Relative path to P4Ruby relnotes. We need to copy them over when we're
  # building the distribution
  #

  @@RELNOTES_PATH = "../p4-doc/user/p4rubynotes.txt"

  #
  # Extract the P4Ruby version
  #
  def get_version
    v = nil
    p = nil
    n = nil
    File.open( "Version" ) do
      |f|
      f.each do
        |line|
        if ( line =~ /^RELEASE\s*=\s*(\d+) (\d+) ?(.*) ;/ )
          v = "#{$1}.#{$2}"
          n = $3
          n.gsub!(/ +/, '.')
        elsif ( line =~ /^PATCHLEVEL\s*=\s*(\d+)/ )
          p = $1
        end
      end
    end
  
    if ( ! v )
      raise( RuntimeError, "Can't figure out the version of P4Ruby!" )
    end
    v += ".#{p}" if p
    v += ".#{n}" if n
    return v
  end
  
  #
  # Build the tarball
  #
  def build_tarball( tarball, build_dir )
    system( "tar -cvf #{tarball} #{build_dir}" )
    system( "gzip -vf #{tarball}" )
  end

end