#!/usr/bin/env ruby
raise 'Please, use ruby1.9.3 or later.' if RUBY_VERSION < '1.9.3'
=begin
 Common Rakefile, Rantfile to place sisu markup translation under
 po4a management softlink Rakefile and Rantfile to this file

 * Homepage: <http://www.jus.uio.no/sisu/SiSU>
             <http://sisudoc.org>
 * Download: <http://www.jus.uio.no/sisu/download>

 Copyright (C) 2013 Ralph Amissah

 * License: LGPL - GNU Lesser General Public License
     [same license as Rant provided within the Rant package]

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

 Rake is a Ruby build program by Jim Weirich
 * Rake may be downloaded and installed from:
     <http://rake.rubyforge.org/>

 Rant is a Ruby build program by Stefan Lang
 * Rant may be downloaded and installed from:
     <http://make.rubyforge.org/>

 Notes on use:
     rake -T
   [if rant is preferred and installed]
     rant -T
=end
require 'find'
require 'fileutils'
#require 'ftools'
require 'rbconfig.rb'
#include RbConfig
require 'yaml'
include FileUtils
def project_details
  def name
    'SiSU translations under po4a management'
  end
  def name_warning
    <<-WOK
#{name}

WARNING all sisu markup files (.ssm, .sst, .ssi) in languages other than #{language.source}
are managed by po4a, through translations of the source language to other languages.

#{language.info_on_selection}
    WOK
  end
  def rake_project
    "Rakefile for placing #{name}"
  end
  self
end
def query
  def answer?(ask)
    resp='redo'
    print ask + %{    ['yes', 'no' or 'quit']: }
    resp=File.new('/dev/tty').gets.strip
    if resp == 'yes';           true
    elsif resp == 'no';         false
    elsif resp =~/^quit|exit$/; exit
    else
      puts %{[please type: 'yes', 'no' or 'quit']}
      answer?(ask)
    end
  end
  self
end
def notice
  def warn_and_proceed?
    %{WARNING: This Software is used entirely at your own risk.
    PROCEED?}
  end
  def default(selection=nil)
    ans= if selection
      case selection
      when selection.is_a?(String)
        <<-WOK
  #{project_details.rake_project}
    Information on alternative actions is available using: "rake help" or "rake -T"
    Default action selected - "#{selection} #{project_details.name}"
    #{warn_and_proceed?}
        WOK
      when :make
        <<-WOK
  #{project_details.rake_project}
    Information on alternative actions is available using: "rake help" or "rake -T"
    #{selection.upcase} selected - #{selection} #{project_details.name}
    WARNING: this action assumes (and places) this project is under po4a
    (translation) management. It will create the sub-directories:
      #{language.translations_available_str}
    & file: #{filename.po4a_cfg}
    in the current directory:
      #{Dir.pwd}
    It will populate the sub-directories with translation files created from
    the pot and po files found under the corresponding language sub-directories,
    (under #{dir.pot}/ & #{dir.po}/). (OVERWRITING any existing translated
    .ssm .sst .ssi files in language subdirectories that are not under po4a
     management).
    #{warn_and_proceed?}
        WOK
      when :clean
        <<-WOK
  #{project_details.rake_project}
    Information on alternative actions is available using: "rake help" or "rake -T"
    #{selection.upcase} selected - #{selection} #{project_details.name}
    #{warn_and_proceed?}
        WOK
      when :distclean
        <<-WOK
  #{project_details.rake_project}
    Information on alternative actions is available using: "rake help" or "rake -T"
    #{selection.upcase} selected - #{selection} #{project_details.name}
    WARNING: this action assumes (and places) this project is under po4a
    (translation) management. It will remove the sub-directories:
      #{language.translations_available_str}
    & file: #{filename.po4a_cfg}
    in the current directory:
      #{Dir.pwd}
    Note: these sub-directories & the config file #{filename.po4a_cfg}
    should be auto-generated from pot and po files if this project translation
    is under po4a management.
    This query is to give you the chance to make sure you know what you are doing.
    #{warn_and_proceed?}
        WOK
      when :rebuild
        <<-WOK
  #{project_details.rake_project}
    Information on alternative actions is available using: "rake help" or "rake -T"
    #{selection.upcase} selected - #{selection} #{project_details.name}
    WARNING: this action assumes (and places) this project is under po4a
    (translation) management. It will destroy/clobber and then create again the
    sub-directories:
      #{language.translations_available_str}
    populating them with translation files created from the pot and po files
    found under the corresponding language sub-directories in (#{dir.pot}/
    & #{dir.po}/).
    It will also generate the file: #{filename.po4a_cfg}
    These actions will be taken in the current directory:
      #{Dir.pwd}
    This query is to give you the chance to make sure you know what you are doing.
    #{warn_and_proceed?}
        WOK
      else
        <<-WOK
  #{project_details.rake_project}
    Information on alternative actions is available using: "rake help" or "rake -T"
    Default action selected - "#{selection} #{project_details.name}"
    #{warn_and_proceed?}
        WOK
      end
    else
      <<-WOK
  #{project_details.rake_project}
    Information on alternative actions is available using: "rake help" or "rake -T"
    Default action selected - "install and to setup #{project_details.name}"
    #{warn_and_proceed?}
      WOK
    end
    resp=query.answer?(ans)
    exit unless resp
  end
  def project_help
    puts <<-WOK
#{project_details.name}
#{project_details.rake_project}

This rake file is to assist with having sisu markup files under po4a
translation management. It assumes that the source language files are placed
under the sub-directory identifying the source language set, which is currently
#{language.source}
The files there are used to make the source translation file in the directory #{dir.pot}/
Which is then used to create files for translation under the directory #{dir.po}/
in sub-directories bearing the translation languages ISO code.

The current language translation selection is:  #{translations_selected_str}
The languages selected are located in the file: #{filename.languages}

sisu available language list: #{sisu_available_str}

For a more detailed and up to date task list use:

  rake -T

  WOK
  end
  self
end
def tasks
  system('rake -T')
end
def filename
  def languages
    'translation_languages'
  end
  def po4a_cfg
    'po4a.cfg'
  end
  self
end
def dir
  def pwd
    Dir.pwd
  end
  def po4a_
    'po4a/' # ''
  end
  def pot
    po4a_ + 'pot'
  end
  def po
    po4a_ + 'po'
  end
  self
end
def dir_mk(dir)
  FileUtils::mkdir_p(dir) unless FileTest.directory?(dir)
end
def po4a_flags
  def debug
    '-d -v'
  end
  def normal
    ''
  end
  def quiet
    '-q'
  end
  self
end
def language
  def source #source_language
    'en'
  end
  def translations_selected #translation_languages
    IO.read(filename.languages, mode: 'r:utf-8').split(/\s+/)
  end
  def translations_available
    translations_selected & sisu_available
  end
  def info_on_selection
    if translations_selected != translations_available
      <<-WOK
WARNING: language selections mismatch

The current language translation selection appears to be: #{translations_selected_str}
Of which the following are valid (available) selections:  #{translations_available_str}

sisu available language list: #{sisu_available_str}

the following will be used: #{translations_available_str}
The languages selected are located in the file:    #{filename.languages}
      WOK
    else
      <<-WOK
The current language translation selection is:  #{translations_selected_str}
The languages selected are located in the file: #{filename.languages}

sisu available language list: #{sisu_available_str}
      WOK
    end
  end
  def sisu_available
    %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 translations_selected_str
    language.translations_selected.join(' ')
  end
  def translations_available_str
    language.translations_available.join(' ')
  end
  def sisu_available_str
    language.sisu_available.join(' ')
  end
  self
end
def files_src
  def ssm
    Dir.glob("#{language.source}/*.ssm").sort
  end
  def sst
    Dir.glob("#{language.source}/*.sst").sort
  end
  def ssi
    Dir.glob("#{language.source}/*.ssi").sort
  end
  def all
    Dir.glob("#{language.source}/*{.ssm,.sst,.ssi}").sort
  end
  self
end
def po4a_cfg_file
  File.open("#{Dir.pwd}/#{filename.po4a_cfg}",'w')
end
def po4a
  def configure #po4a_cfg
    po4a_cfg_arr=[]
    po4a_cfg_arr << "[po4a_langs] #{language.translations_available_str}"
    po4a_cfg_arr << "[po4a_paths] #{dir.pot}/$master.pot $lang:#{dir.po}/$lang/$master.po"
    files_src.ssm.each do |file_src|
      file_src_fn=file_src.gsub(/#{language.source}\//,'')
      po4a_cfg_arr << "[type: text] #{file_src} $lang:$lang/#{file_src_fn}"
    end
    files_src.sst.each do |file_src|
      file_src_fn=file_src.gsub(/#{language.source}\//,'')
      po4a_cfg_arr << "[type: text] #{file_src} $lang:$lang/#{file_src_fn}"
    end
    files_src.ssi.each do |file_src|
      file_src_fn=file_src.gsub(/#{language.source}\//,'')
      po4a_cfg_arr << "[type: text] #{file_src} $lang:$lang/#{file_src_fn}"
    end
    file=po4a_cfg_file
    po4a_cfg_arr.each do |txt|
    puts txt
      file << txt << "\n"
    end
    file.close
  	system("po4a --keep 0 --no-backups --package-name sisu-manual #{po4a_flags.normal} #{filename.po4a_cfg}")
  end
  self
end
def project
  dir_mk(dir.pot)
  language.translations_available.each do |lang_dir|
    dir_lang="#{Dir.pwd}/#{dir.po}/#{lang_dir}"
    dir_mk(dir_lang)
  end
  po4a.configure
end
def clean
	#rm -rf ../build
  FileUtils.rm_f Dir.glob("#{dir.po}/*/*.po~")
end
def distclean
  FileUtils::rm_f(filename.po4a_cfg)
  FileUtils::rm_r(language.translations_available,:force => true)
end

#% task lists
desc "runs make (see its description below)"
task :default => [:make]
desc "assist with having sisu markup files managed by po4a
                   create configuration files, and language directories and
                   populate them with po4a pot & po files for translation and
                   from those (as translated) create translated sisu markup
                   .ssm .sst & .ssi files in corresponding language sub-directories"
task :make => [:notice_make_,:build_]
desc "help"
task :help => [:project_help_,:tasks_]
desc "clean temporary files"
task :clean => [:notice_clean_,:clean_]
desc "removes auto-generated files under po4a management
                  including translated .ssm .sst & .ssi files,
                  that are created from po4a pot and po files"
task :distclean => [:notice_distclean_,:distclean_]
desc "runs 'distclean' and 'make' (see their descriptions above)"
task :rebuild => [:notice_rebuild_,:distclean_,:build_]
if File.directory?(dir.pot) \
and File.directory?(dir.po)
  #desc ""
  task :clean! => [:clean_]
  task :distclean! => [:distclean_]
  task :rebuild! => [:distclean_,:build_]
  task :make! => [:build_]
else
  task :make! => [:build_]
end

#% task actions
task :project_help_ do
  notice.project_help
end
task :tasks_ do
  tasks
end
task :build_ do
  project
end
task :clean_ do
  clean
end
task :distclean_ do
  distclean
end
task :notice_default_ do
  notice.default
end
task :notice_make_ do
  notice.default(:make)
end
task :notice_clean_ do
  notice.default(:clean)
end
task :notice_distclean_ do
  notice.default(:distclean)
end
task :notice_rebuild_ do
  notice.default(:rebuild)
end
__END__