Module: IMW::Archives::Tarbz2

Includes:
Base, CompressedFiles::Base
Defined in:
lib/imw/archives/tarbz2.rb

Instance Method Summary collapse

Methods included from Base

#append, #contents, #extract, #is_archive?

Methods included from CompressedFiles::Base

#decompress, #decompress!, #decompressed_path, #is_compressed?, #is_compressible?

Instance Method Details

#archive_settings ⇒ Object 



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# File 'lib/imw/archives/tarbz2.rb', line 26

def archive_settings
  @archive_settings ||= {
    :program               => :tar,
    :create                => '-cf',
    :list                  => "-tjf",
    :extract               => "-xjf"
  }
end

#compression_settings ⇒ Object 



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# File 'lib/imw/archives/tarbz2.rb', line 11

def compression_settings
  @compression_settings ||= {
    :program               => :bzip2,
    :decompression_program => :bunzip2,
    :decompress            => '',
    :extension             => 'bz2'
  }
end

#create(*input_paths) ⇒ Object

Overrides default behvaior of IMW::Files::Archive#create to compress files after creating them.



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# File 'lib/imw/archives/tarbz2.rb', line 37

def create *input_paths
  IMW.system(archive_settings[:program], archive_settings[:create], path_between_archive_and_compression, *input_paths.flatten)
  IMW.open(path_between_archive_and_compression).compress!
end

#decompressed_basename ⇒ Object 



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# File 'lib/imw/archives/tarbz2.rb', line 42

def decompressed_basename
  case extname
  when '.tar.bz2' then basename[0..-5]               # .tar.bz2 => .tar
  when '.tbz2'    then basename.gsub(/tbz2$/, 'tar') # .tbz2    => .tar
  else                 basename[0..-(extname.size + 1)]
  end
end

#extname ⇒ Object

It’s a compressed file AND an archive!



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# File 'lib/imw/archives/tarbz2.rb', line 62

def extname
  case path
  when /\.tar\.bz2$/ then '.tar.bz2'
  when /\.tbz2$/     then '.tbz2'
  else               File.extname(path)
  end
end