Method: GLib.prepend_path_to_environment_variable

Defined in:
lib/glib2.rb

.prepend_path_to_environment_variable(path, environment_name) ⇒ Object 



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# File 'lib/glib2.rb', line 88

def prepend_path_to_environment_variable(path, environment_name)
  path = Pathname(path) unless path.is_a?(Pathname)
  if path.exist?
    separator = ::File::PATH_SEPARATOR

    paths = (ENV[environment_name] || '').split(/#{Regexp.escape(separator)}/)
    dir = path.to_s
    dir = dir.gsub(/\//, ::File::ALT_SEPARATOR) if ::File::ALT_SEPARATOR
    unless paths.include?(dir)
      paths = [dir] + paths
      ENV[environment_name] = paths.join(separator)
    end
  end
end