Class: HexaPDF::CLI::Files

Inherits:
Command
  • Object
show all
Defined in:
lib/hexapdf/cli/files.rb

Overview

Lists or extracts embedded files from a PDF file.

See: HexaPDF::Type::EmbeddedFile

Instance Method Summary collapse

Methods included from Command::Extensions

#help_banner

Constructor Details

#initialize ⇒ Files

:nodoc:



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# File 'lib/hexapdf/cli/files.rb', line 47

def initialize #:nodoc:
  super('files', takes_commands: false)
  short_desc("List or extract embedded files from a PDF file")
  long_desc(<<~EOF)
    If the option --extract is not given, the available files are listed with their names and
    indices. The --extract option can then be used to extract one or more files.
  EOF

  options.on("--extract [a,b,c,...]", "-e [a,b,c,...]", Array,
             "The indices of the files that should be extracted. Use 0 or no argument to " \
             "extract all files.") do |indices|
    @indices = (indices ? indices.map(&:to_i) : [0])
  end
  options.on("--[no-]search", "-s", "Search the whole PDF instead of the " \
             "standard locations (default: false)") do |search|
    @search = search
  end
  options.on("--password PASSWORD", "-p", String,
             "The password for decryption. Use - for reading from standard input.") do |pwd|
    @password = (pwd == '-' ? read_password : pwd)
  end

  @indices = []
  @password = nil
  @search = false
end

Instance Method Details

#execute(pdf) ⇒ Object

:nodoc:



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# File 'lib/hexapdf/cli/files.rb', line 74

def execute(pdf) #:nodoc:
  with_document(pdf, password: @password) do |doc|
    if @indices.empty?
      list_files(doc)
    else
      extract_files(doc)
    end
  end
end