Class: Inspec::RelativeFileProvider

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

Constant Summary collapse

BLACKLIST_FILES = 
[
  '/pax_global_header',
  'pax_global_header',
].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(parent_provider) ⇒ RelativeFileProvider

Returns a new instance of RelativeFileProvider.



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# File 'lib/inspec/file_provider.rb', line 225

def initialize(parent_provider)
  @parent = parent_provider
  @prefix = get_prefix(parent.files)
  if @prefix.nil?
    raise "Could not determine path prefix for #{parent}"
  end

  # select all files that begin with the prefix, and strip off the prefix from the file.
  #
  # strip off any leading top-level relative path (./) which is common in
  # PAX-formatted tar files. Do not do any translation of the path if the
  # path is an absolute path.
  @files = parent.files
                 .find_all { |x| x.start_with?(prefix) && x != prefix }
                 .map { |x| x[prefix.length..-1] }
                 .map do |x|
                   path = Pathname.new(x)
                   path.absolute? ? path.to_s : path.relative_path_from(Pathname.new('.')).to_s
                 end
end

Instance Attribute Details

#files ⇒ Object (readonly)

Returns the value of attribute files.



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# File 'lib/inspec/file_provider.rb', line 221

def files
  @files
end

#parent ⇒ Object (readonly)

Returns the value of attribute parent.



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# File 'lib/inspec/file_provider.rb', line 223

def parent
  @parent
end

#prefix ⇒ Object (readonly)

Returns the value of attribute prefix.



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# File 'lib/inspec/file_provider.rb', line 222

def prefix
  @prefix
end

Instance Method Details

#abs_path(file) ⇒ Object 



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# File 'lib/inspec/file_provider.rb', line 246

def abs_path(file)
  return nil if file.nil?
  prefix + file
end

#binread(file) ⇒ Object 



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# File 'lib/inspec/file_provider.rb', line 255

def binread(file)
  parent.binread(abs_path(file))
end

#read(file) ⇒ Object 



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# File 'lib/inspec/file_provider.rb', line 251

def read(file)
  parent.read(abs_path(file))
end