Class: Tarball

Inherits:
Object
  • Object
show all
Defined in:
lib/tarball.rb

Overview

Represents a tarball, possibly gzipped.

Instance Method Summary collapse

Constructor Details

#initialize(file) ⇒ Tarball

Returns a new instance of Tarball.



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# File 'lib/tarball.rb', line 20

def initialize(file)
  @file = file
end

Instance Method Details

#list ⇒ Object 



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# File 'lib/tarball.rb', line 24

def list
  output = LoggedCheetah.run("tar", "tvf", @file, :stdout => :capture)

  output.lines.map do |line|
    mode, user_and_group, size, date, time, *rest = line.split(" ")

    case mode[0]
      when "l"
        type = :link
        # This may fail for files with "->" in their name, but there is no way
        # how to avoid this when using "tar".
        path = rest.join(" ").split(" -> ").first
      when "d"
        type = :dir
        path = rest.join(" ")[0..-2]   # Strip trailing "/".
      else
        type = :file
        path = rest.join(" ")
    end

    user, group = user_and_group.split("/")

    {
      path:  path,
      type:  type,
      size:  size.to_i,
      mode:  mode_string_to_octal(mode),
      user:  user,
      group: group
    }
  end
end