Class: UnpackStrategy::Lzma

Inherits:
Object
  • Object
show all
Includes:
UnpackStrategy
Defined in:
Library/Homebrew/unpack_strategy/lzma.rb

Overview

Strategy for unpacking LZMA archives.

Instance Attribute Summary

Attributes included from UnpackStrategy

#merge_xattrs, #path

Class Method Summary collapse

Instance Method Summary collapse

Methods included from UnpackStrategy

detect, #extract, #extract_nestedly, from_extension, from_magic, from_type, #initialize

Methods included from SystemCommand::Mixin

#system_command, #system_command!

Class Method Details

.can_extract?(path) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'Library/Homebrew/unpack_strategy/lzma.rb', line 15

def self.can_extract?(path)
  path.magic_number.match?(/\A\]\000\000\200\000/n)
end

.extensionsObject


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# File 'Library/Homebrew/unpack_strategy/lzma.rb', line 11

def self.extensions
  [".lzma"]
end

Instance Method Details

#dependenciesObject


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# File 'Library/Homebrew/unpack_strategy/lzma.rb', line 28

def dependencies
  @dependencies ||= [Formula["xz"]]
end

#extract_to_dir(unpack_dir, basename:, verbose:) ⇒ Object


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# File 'Library/Homebrew/unpack_strategy/lzma.rb', line 19

def extract_to_dir(unpack_dir, basename:, verbose:)
  FileUtils.cp path, unpack_dir/basename, preserve: true
  quiet_flags = verbose ? [] : ["-q"]
  system_command! "unlzma",
                  args:    [*quiet_flags, "--", unpack_dir/basename],
                  env:     { "PATH" => PATH.new(Formula["xz"].opt_bin, ENV["PATH"]) },
                  verbose: verbose
end