# = TITLE:
#
#   Release
#
# = COPYING:
#
#   Copyright (c) 2007 Psi T Corp.
#
#   This file is part of the ProUtils' Ratch program.
#
#   Ratch is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   Ratch is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with Ratch.  If not, see <http://www.gnu.org/licenses/>.

require 'ratch/metadata/information'

module Ratch

  # = Release class
  #

  class Release < Information

    # Name of release package.

    attr_accessor :name

    # Version number.

    attr_accessor :version

    validate "version is required" do
      version
    end

    #

    attr_accessor :buildno do
      @buildno = Time.now.strftime("%y%m%d%H%M") if TrueClass === @buildno
      @buildno
    end

    # Status of this release: alpha, beta, RC1, etc.

    attr_accessor :status

    # Date of release (defaults to Time.now).

    attr_accessor :date, :released do
      @date || Time.now.strftime("%Y-%m-%d")
    end

    # Codename of this release.

    attr_accessor :codename

    #

    ROLL_FILE   = '{,meta/}*.roll'

    # Load release information.

    def self.load
      file = Dir.glob(ROLL_FILE, File::FNM_CASEFOLD).first
      if file
        Release.new(parse_rollrc(File.open(file)))
      else
        raise LoadError, "release file required -- #{RELEASE_FILE}"
      end
    end

    # Parse ROLLRC file for release information.

    def self.parse_rollrc(io)
      if IO === io
        begin
          str = io.read
        ensure
          io.close
        end
      else
        str = io.to_s
      end

      stamp, *libpath = str.strip.split(/\n/)

      name, version, status, date, *null = *stamp.split(/\s+/)

      { :name     => name,
        :version  => version,
        :status   => status,
        :date     => date,
        :libpath  => libpath
      }
    end

  end

end