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#
# Author:: John Keiser (<jkeiser@opscode.com>)
# Author:: Ho-Sheng Hsiao (<hosh@opscode.com>)
# Copyright:: Copyright (c) 2012 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require 'chef/chef_fs/file_system/file_system_entry'
require 'chef/chef_fs/file_system/not_found_error'
class Chef
module ChefFS
module FileSystem
# ChefRepositoryFileSystemEntry works just like FileSystemEntry,
# except can inflate Chef objects
class ChefRepositoryFileSystemEntry < FileSystemEntry
def initialize(name, parent, file_path = nil, data_handler = nil)
super(name, parent, file_path)
@data_handler = data_handler
end
def write_pretty_json=(value)
@write_pretty_json = value
end
def write_pretty_json
@write_pretty_json.nil? ? root.write_pretty_json : @write_pretty_json
end
def data_handler
@data_handler || parent.data_handler
end
def chef_object
begin
return data_handler.chef_object(Chef::JSONCompat.parse(read))
rescue
Chef::Log.error("Could not read #{path_for_printing} into a Chef object: #{$!}")
end
nil
end
def can_have_child?(name, is_dir)
!is_dir && name[-5..-1] == '.json'
end
def write(file_contents)
if file_contents && write_pretty_json && name[-5..-1] == '.json'
file_contents = minimize(file_contents, self)
end
super(file_contents)
end
def minimize(file_contents, entry)
object = Chef::JSONCompat.parse(file_contents)
object = data_handler.normalize(object, entry)
object = data_handler.minimize(object, entry)
Chef::JSONCompat.to_json_pretty(object)
end
def children
# Except cookbooks and data bag dirs, all things must be json files
begin
Dir.entries(file_path).sort.
select { |child_name| can_have_child?(child_name, File.directory?(File.join(file_path, child_name))) }.
map { |child_name| make_child(child_name) }
rescue Errno::ENOENT
raise Chef::ChefFS::FileSystem::NotFoundError.new(self, $!)
end
end
protected
def make_child(child_name)
ChefRepositoryFileSystemEntry.new(child_name, self)
end
end
end
end
end
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