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# encoding: utf-8
=begin

 * Name: SiSU

 * Description: a framework for document structuring, publishing and search

 * Author: Ralph Amissah

 * Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 Ralph Amissah,
   All Rights Reserved.

 * License: GPL 3 or later:

   SiSU, a framework for document structuring, publishing and search

   Copyright (C) Ralph Amissah

   This program 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.

   This program 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
   this program. If not, see <http://www.gnu.org/licenses/>.

   If you have Internet connection, the latest version of the GPL should be
   available at these locations:
   <http://www.fsf.org/licensing/licenses/gpl.html>
   <http://www.gnu.org/licenses/gpl.html>

   <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>

 * SiSU uses:
   * Standard SiSU markup syntax,
   * Standard SiSU meta-markup syntax, and the
   * Standard SiSU object citation numbering and system

 * Hompages:
   <http://www.jus.uio.no/sisu>
   <http://www.sisudoc.org>

 * Download:
   <http://www.sisudoc.org/sisu/en/SiSU/download.html>

 * Git
   <http://git.sisudoc.org/gitweb/?p=code/sisu.git;a=summary>
   <http://git.sisudoc.org/gitweb/?p=code/sisu.git;a=blob;f=lib/sisu/v5/se_version.rb;hb=HEAD>

 * Ralph Amissah
   <ralph@amissah.com>
   <ralph.amissah@gmail.com>

 ** Description: system environment, resource control and configuration details

=end
module SiSU_Info_Version
  require_relative 'constants'                             # constants.rb
  require_relative 'utils'                                 # utils.rb
  require_relative 'se_info_env'                           # se_info_env.rb
  begin
    require 'singleton'
  rescue LoadError
    SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
      error('singleton NOT FOUND (LoadError)')
  end
  class InfoVersion < SiSU_Info_Env::InfoEnv               # se_info_env.rb
    include Singleton
    begin
      require 'rbconfig'
      require 'yaml'
    rescue LoadError
      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
        error('rbconfig or yaml NOT FOUND (LoadError)')
    end
    @@lib_path=nil
    def get_version
      @version={}
      @pwd=ENV['PWD']
      lib_path=
        @@lib_path \
        ? @@lib_path
        : `echo $RUBYLIB`.split(':')
      @@lib_path ||=lib_path
      if File.exist?(SiSU_is[:version_info_path])
        @version=YAML::load(File::open(SiSU_is[:version_info_path]))
      end
      @version[:install_method]=if SiSU_is[:run_from]==:gem_install
        spec = Gem::Specification.find_by_name("sisu")
        gem_root = spec.gem_dir
        (File.dirname(__FILE__.gsub(/\/lib\/sisu\/#{SiSU_is[:version_dir]}/,'')) == gem_root) \
        ? ' (ruby gem install)' : ''
      else ''
      end
      @version
    end
    def rbversion
      %x{ruby -v}.strip
    end
  end
end
module SiSU_Info_About
  require_relative 'constants'                             # constants.rb
  require_relative 'utils'                                 # utils.rb
  begin
    require 'singleton'
  rescue LoadError
    SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
      error('singleton NOT FOUND (LoadError)')
  end
  class InfoAbout
    def initialize(color='')
      @color=color
    end
    def sisu_version
      version=SiSU_Env::InfoVersion.instance.get_version
      rb_ver=SiSU_Env::InfoVersion.instance.rbversion
      if version[:version]
        opt_cmd=if defined? @color.cmd \
        and @color.cmd =~/[ck]/
          @color.cmd
        else '-v'
        end
        SiSU_Screen::Ansi.new(
          opt_cmd,
          version[:project],
          version[:version],
          version[:date_stamp],
          version[:date],
          version[:install_method],
          rb_ver
        ).version
      else puts 'SiSU (version information not available)'
      end
    end
    def sisu_about
      puts <<-WOK
     sisu: documents; markup, structuring, publishing in multiple standard formats, & search
     most (not all) useful commands (are made in a directory containing a sisu markup file &) take the form:
       sisu [action(s)] [filename(s)]
     where filename refers to a valid sisu marked up file, e.g.:
       cd /usr/share/doc/sisu/markup-samples/sisu_manual
       sisu --html --verbose sisu_commands.sst
       sisu --txt --html --epub --odt --pdf --sqlite --manpage --texinfo --concordance --qrcode --verbose sisu.ssm
       cd -
     See output produced, or see man pages: man sisu
     <http://www.sisudoc.org/> <http://www.jus.uio.no/sisu/>
        WOK
    end
  end
end
__END__