Module: Vagrant::Util::WindowsPath

Defined in:
lib/vagrant/util/windows_path.rb

Defined Under Namespace

Modules: API

Class Method Summary collapse

Class Method Details

.longname(name) ⇒ Object

Converts a Windows shortname to a long name. This only works for ASCII paths currently and doesn't use the wide character support.


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# File 'lib/vagrant/util/windows_path.rb', line 15

def self.longname(name)
  # We loop over the API call in case we didn't allocate enough
  # buffer space. In general it is usually enough.
  bufferlen = 250
  buffer    = nil
  while true
    buffer = ' ' * bufferlen
    len    = API.GetLongPathNameA(name.to_s, buffer, buffer.size)
    if bufferlen < len
      # If the length returned is larger than our buffer length,
      # it is the API telling us it needs more space. Allocate it
      # and retry.
      bufferlen = len
      continue
    end

    break
  end

  return buffer.rstrip.chomp("\0")
end