class Puppet::Indirector::Yaml

The base class for YAML indirection termini.

Constants

YamlLoadExceptions

Public Instance Methods

destroy(request) click to toggle source
# File lib/puppet/indirector/yaml.rb, line 61
def destroy(request)
  file_path = path(request.key)
  File.unlink(file_path) if File.exists?(file_path)
end
find(request) click to toggle source

Read a given name’s file in and convert it from YAML.

# File lib/puppet/indirector/yaml.rb, line 12
def find(request)
  file = path(request.key)
  return nil unless FileTest.exist?(file)

  yaml = nil
  begin
    yaml = ::File.read(file)
  rescue => detail
    raise Puppet::Error, "Could not read YAML data for #{indirection.name} #{request.key}: #{detail}"
  end

  begin
    return from_yaml(yaml)
  rescue *YamlLoadExceptions => detail
    raise Puppet::Error, "Could not parse YAML data for #{indirection.name} #{request.key}: #{detail}"
  end
end
path(name,ext='.yaml') click to toggle source

Return the path to a given node’s file.

# File lib/puppet/indirector/yaml.rb, line 51
def path(name,ext='.yaml')
  if name =~ Puppet::Indirector::BadNameRegexp then
    Puppet.crit("directory traversal detected in #{self.class}: #{name.inspect}")
    raise ArgumentError, "invalid key"
  end

  base = Puppet.run_mode.master? ? Puppet[:yamldir] : Puppet[:clientyamldir]
  File.join(base, self.class.indirection_name.to_s, name.to_s + ext)
end
save(request) click to toggle source

Convert our object to YAML and store it to the disk.

# File lib/puppet/indirector/yaml.rb, line 31
def save(request)
  raise ArgumentError.new("You can only save objects that respond to :name") unless request.instance.respond_to?(:name)

  file = path(request.key)

  basedir = File.dirname(file)

  # This is quite likely a bad idea, since we're not managing ownership or modes.
  Dir.mkdir(basedir) unless FileTest.exist?(basedir)

  begin
    Puppet::Util.replace_file(file, 0660) do |f|
      f.print to_yaml(request.instance)
    end
  rescue TypeError => detail
    Puppet.err "Could not save #{self.name} #{request.key}: #{detail}"
  end
end