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#!/usr/bin/env ruby
# encoding: utf-8
#SiSU: copyright (C) 1997 - 2015 Ralph Amissah; License GPL 3, see appended program information
class Orient
  require 'singleton'
  include Singleton
  def initialize #(called_as_,argv)
    super()
    @called_as,@argv=$0,$*
  end
  def version_major
   '7'
  end
  def sisu_called_from_directory
    @@sisu_called_from_directory ||= Dir.pwd
  end
  def sisu_run_from?
    if processing.called_as == processing.sisu_runtime_path \
    and File.dirname(processing.sisu_runtime_path) != RbConfig::CONFIG['bindir']
      :full_path_to_sisu_bin_in_sisu_dir_tree
    elsif processing.sisu_runtime_path =~/\/gems\// \
    and processing.sisu_runtime_path \
    =~ /\/sisu-(?:\d+|[a-z])\.(?:\d+|[a-z])\.(?:\d+|[a-z])\//
      :gem_install
    else
      :system_install
    end
  end
  def processing
    def called_as
      @called_as
    end
    def argv
      @argv
    end
    def argv_str
      argv.inspect
    end
    def sisu_runtime_path
      __FILE__
    end
    def bin_file_regex
      %r{\bsisu$}
    end
    def gem_regex
      %r{\/sisu-(?:\d+|[a-z])\.(?:\d+|[a-z])\.(?:\d+|[a-z])\/}
    end
    self
  end
  def sisu_lib
    'sisu'
  end
  def sisu_version_info_path
    "#{sisu_path_base_system_data}/version.yml"
  end
  def paths_set
    if sisu_run_from? == :system_install \
    and processing.called_as \
    =~ /^#{RbConfig::CONFIG['bindir']}\/sisu$/
      :set_path_system
    elsif sisu_run_from? == :full_path_to_sisu_bin_in_sisu_dir_tree \
    and processing.called_as \
    !~ /^#{RbConfig::CONFIG['bindir']}\/sisu$/ \
    && File.expand_path(processing.called_as) \
    =~ /bin\/sisu$/ \
    && FileTest.file?(processing.called_as)
      :set_dir_tree_full_path
    elsif sisu_run_from? ==:gem_install
      :set_path_gem
    else nil
    end
  end
  def git_version
    if sisu_run_from? == :full_path_to_sisu_bin_in_sisu_dir_tree \
    && FileTest.file?('/usr/bin/git') \
    && FileTest.directory?(processing.sisu_runtime_path.gsub(/\/bin\/sisu\S*/,'/.git'))
      bin_base=processing.sisu_runtime_path.gsub(/\/bin\/sisu\S*/,'')
      pwd=Dir.pwd
      Dir.chdir(bin_base)
      x=`git describe --long --tags 2>&1`.strip.
        gsub(/^[a-z_-]*([0-9.]+)/,'\1').
        gsub(/([^-]*-g)/,'r\1').
        gsub(/-/,'.')
      x=(x=~/^[0-9]+\.[0-9]+\.[0-9]+\.r[0-9]+\.g[0-9a-f]{7}/) \
      ? x
      : nil
      Dir.chdir(pwd)
      x
    else nil
    end
  end
  def sisu_path_base
    case paths_set
    when :set_path_system
      RbConfig::CONFIG['datadir'] + '/sisu'
    when :set_dir_tree_full_path
      File.expand_path(processing.called_as).
        sub(/\/bin\/sisu$/,'')
    when :set_path_gem
      Gem::Specification.find_by_name("sisu").gem_dir
    else nil
    end
  end
  def sisu_path_base_system_data
    case paths_set
    when :set_path_system
      RbConfig::CONFIG['datadir'] + '/sisu'
    when :set_dir_tree_full_path
      File.expand_path(processing.called_as).
        sub(/\/bin\/sisu$/,'/data/sisu')
    when :set_path_gem
      Gem::Specification.find_by_name("sisu").gem_dir + '/data/sisu'
    else nil
    end
  end
  def sisu_this_lib
    if processing.sisu_runtime_path =~/\/gems\// \
    and processing.sisu_runtime_path \
    =~ /\/sisu-(?:\d+|[a-z])\.(?:\d+|[a-z])\.(?:\d+|[a-z])\//
      # gem sought
      processing.sisu_runtime_path.
        gsub(/\/bin\/sisu[a-z0-7_-]*$/,'/lib/sisu')
    elsif (processing.called_as \
    !~ /^#{RbConfig::CONFIG['bindir']}\/sisu$/)
      # called off file system, project directory tree
      File.expand_path(processing.called_as).
        sub(/bin\/sisu\S*/,'lib/sisu')
    else
      # distro installation
      sisulib={
        vendorlib: RbConfig::CONFIG['vendordir'] + '/sisu',
        sitelib: RbConfig::CONFIG['sitelibdir'] + '/sisu',
      }
      if FileTest.directory?(sisulib[:sitelib])            # Arch Linux; Debian local
        sisulib[:sitelib]
      elsif FileTest.directory?(sisulib[:vendorlib])       # Debian GNU Linux system
        sisulib[:vendorlib]
      else 'sisu'                                          # assume lib paths work
      end
    end
  end
  def sisu_this_lib_
    if (processing.called_as \
    !~ /^#{RbConfig::CONFIG['bindir']}\/sisu$/)
      File.expand_path(processing.called_as).
        sub(/bin\/sisu\S*/,'lib/sisu')
    else 'sisu'
    end
  end
  def language_list
    def codes
      %w[am bg bn br ca cs cy da de el en eo es et eu fi fr ga gl he hi hr hy ia is it ja ko la lo lt lv ml mr nl nn no oc pl pt pt_BR ro ru sa se sk sl sq sr sv ta te th tk tr uk ur us vi zh]
    end
    def regex
      codes.join('|')
    end
    self
  end
  def sisu_is
    def version_major?
      version_major
    end
    def runtime_path?
      processing.sisu_runtime_path
    end
    def runtime_type?
      sisu_run_from?
    end
    def called_from?
      sisu_called_from_directory
    end
    def path_base?
      sisu_path_base
    end
    def path_base_system_data?
      sisu_path_base_system_data
    end
    def version_info_path?
      sisu_version_info_path
    end
    def language_list?
      language_list.codes
    end
    def language_list_regex?
      language_list.regex
    end
    def git_version_info?
      git_version
    end
    def runtime?
      {
        call_path:    called_from?,
        runtime_path: runtime_path?,
        runtime_type: runtime_type?,
      }
    end
    self
  end
  def get_processing_info
    def sortout
      unless @clm_pf
        processing_files={}
        command_line_modifiers=[]
        processing.argv.each do |x|
          if x =~/^-+/
            command_line_modifiers << x
          elsif x =~/\.ss[tm]/
            if x =~/\//
              markup_path,markup_file =
                (/(\S+\/)((?:#{language_list.regex})?[^\/]+)/).
                match(x)[1,2]
              if not processing_files[markup_path]
                processing_files[markup_path]=[]
              end
              processing_files[markup_path] << markup_file
            else
              if not processing_files['./']
                processing_files['./']=[]
              end
              processing_files['./'] << x
            end
          end
        end
      end
      @clm_pf ||={
        command_line_modifiers: command_line_modifiers,
        processing_files:       processing_files,
      }
    end
    def command_line_modifiers
      sortout[:command_line_modifiers]
    end
    def processing_files
      sortout[:processing_files]
    end
    self
  end
  def control
    require sisu_this_lib
    sisu_called_from_directory
    begin
      if get_processing_info.processing_files.length > 0
        get_processing_info.processing_files.each_pair do |markup_dir,markup_file|
          begin
            $sisu_document_markup_directory=markup_dir.gsub(/\/$/,'')
            argv_sub=get_processing_info.command_line_modifiers + markup_file
            if FileTest.directory?(markup_dir)
              system("cd #{markup_dir}")
              Dir.chdir(markup_dir)
              $sisu_document_markup_directory_base_fixed_path=
                Dir.pwd.gsub(/\/(?:#{language_list.regex})$/,'')
              SiSU_libs::CallHubMaster.new(argv_sub,sisu_is.runtime?)
            elsif markup_dir =~/https?:/
              markup_file.each do |mf|
                (FileTest.file?(mf)) \
                ? (puts 'requested remote file already exists in current directory ' \
                  + Dir.pwd + ' using ' + mf)
                : (system("wget #{markup_dir}/#{mf}"))
              end
              $sisu_document_markup_directory_base_fixed_path=
                Dir.pwd.gsub(/\/(?:#{language_list.regex})$/,'')
              argv_sub=command_line_modifiers + markup_file
              SiSU_libs::CallHubMaster.new(argv_sub,sisu_is.runtime?)
            else p "Error directory specified #{markup_dir} not found"
            end
          ensure
            Dir.chdir(sisu_called_from_directory)
            system("cd #{sisu_called_from_directory}")
          end
        end
      else
        $sisu_document_markup_directory=Dir.pwd.gsub(/\/$/,'')
        $sisu_document_markup_directory_base_fixed_path=
          Dir.pwd.gsub(/(^|\/)(?:#{language_list.regex})$/,'')
        SiSU_libs::CallHubMaster.new(processing.argv,sisu_is.runtime?)
      end
    rescue
    ensure
      SiSU_libs::HubClose.new(@argv,sisu_called_from_directory)
      Dir.chdir(sisu_called_from_directory)
      system("cd #{sisu_called_from_directory}")
    end
  end
end
#% sisu select source & branch, begin
$VERBOSE=nil
require 'rbconfig'
begin
  require 'singleton'
  s=Orient.instance
  SiSU_is=s.sisu_is
  s.control
rescue #% -
  STDERR.puts 'ERROR'
  STDERR.puts $!
  STDERR.puts $@
  puts %{
                    #{%x{ruby -v}.strip.to_s}
                    #{RUBY_VERSION}
    ruby version:   #{RbConfig::CONFIG['RUBY_PROGRAM_VERSION']}p#{RbConfig::CONFIG['PATCHLEVEL']}
    ruby named:     #{RbConfig::CONFIG['ruby_version']}
    rubylib:        #{RbConfig::CONFIG['rubylibdir']}
    vendor lib      #{RbConfig::CONFIG['vendordir']}
    site lib local: #{RbConfig::CONFIG['sitelibdir']}
    gem dir:        #{Gem.dir}
    gem path:       #{Gem.path}
  }
  system(%{echo "
    system RUBYPATH: ${RUBYPATH}
    system RUBYLIB:  ${RUBYLIB}
  "})
end
__END__

* Name: SiSU

** Description: documents, structuring, processing, publishing, search

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

** Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
  2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 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=bin/sisu;hb=HEAD>