# NOTE This task needs work!
#      It needs to generalize more to give greater control
#      over which files get what permissions.
#      It also might be extended to do copyright tagging.

require 'reap/task'

#  ___               _       _               _____        _
# | _ \___ _ _ _ __ (_)_____(_)___ _ _  ___ |_   _|_ _ __| |__
# |  _/ -_) '_| '  \| (_-<_-< / _ \ ' \(_-<   | |/ _` (_-< / /
# |_| \___|_| |_|_|_|_/__/__/_\___/_||_/__/   |_|\__,_/__/_\_\
#

# = File Permissions Task

class Reap::Perm < Reap::Task

  section_required true

  task_desc "Normalize ownership and permissions of files."

  task_help %{

    reap perm

    Normalizes file permissions.

      user          user name to use
      group         group name to use

  }

  alias_method :perm, :task

  def run

    perm.group   ||= perm.user
    perm.filemod ||= 644
    perm.dirmod  ||= 755

    puts "Reap is shelling out work to chmod..."

    # misc
    misc = FileList.new
    misc.include('[A-Z]*')
    misc.exclude('InstalledFiles')
    chmod( misc ) unless misc.empty?

    # lib
    libs = FileList.new
    libs.include('lib/**/*')
    libs.exclude('lib/CVS/**/*')
    libs.include('packages/*/lib/**/*')
    libs.exclude('packages/*/lib/CVS/**/*')
    libs.exclude('packages/CVS/**/*')
    chmod( libs ) unless libs.empty?

    # bin
    bins = FileList.new
    bins.include('bin/**/*')
    bins.exclude('bin/CVS/**/*')
    bins.include('packages/*/bin/**/*')
    bins.exclude('packages/*/bin/CVS/**/*')
    bins.exclude('packages/CVS/**/*')
    chmod( bins, 755 ) unless bins.empty?
  end

  # support functions

  def chmod( file_list, file_mode=644, dir_mode=755 )
    dirs, files = file_list.partition{ |l| File.directory?(l) }
    unless files.empty?
      fstr = '"' + files.join('" "') + '"'
      sh %{chmod #{file_mode} #{fstr}}
    end
    unless dirs.empty?
      fstr = '"' + dirs.join('" "') + '"'
      sh %{chmod #{dir_mode} #{fstr}}
    end
  end

  def run_chown
    puts "NOT YET IMPLEMENTED"
  end
#     def _chown( file_list, user, group )
#       fstr = '"' + file_list.join('" "') + '"'
#       if user
#         if group
#           sh %{chown #{user}.#{group} #{fstr}}
#         else
#           sh %{chown #{user} #{fstr}}
#         end
#       end
#     end

end