svn.rb

svn.rb

#!/usr/bin/env ruby

module Svn
  class Revision
    def initialize(str)
      unless /r(\d+) \| (\S+) \| (\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2} \S+)/ =~ str
        raise "unrecognized svn log message #{str}"
      end
      @revision = Regexp.last_match(1)
      @developer = Regexp.last_match(2)
      @time = Regexp.last_match(3)
      @revision = Integer(@revision)
      @msg = str.split(/\n/)[2..-1].join("\n")
    end
    attr_reader :revision, :developer, :time, :msg
  end

  module Log
    def format_time(time)
      "{\"#{time.strftime("%Y-%m-%d %H:%M:%S")}\"}"
    end
    module_function :format_time

    def revisions(root, from, to="HEAD", branch="trunk")
      if from.is_a?(Time)
        from = format_time(from)
      end
      if to.is_a?(Time)
        to = format_time(to)
      end
      msg = `svn log --revision #{from}:#{to} #{root}/#{branch}`
      revs = msg.split(/^-{72}$/).select{|l| /\S+/ =~ l }
      revs.map{|msg| Revision.new(msg) }
    end
    module_function :revisions
  end
end