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#
# Author:: John Keiser (<jkeiser@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/base_fs_dir'
require 'chef/chef_fs/file_system/rest_list_dir'
require 'chef/chef_fs/file_system/already_exists_error'
require 'chef/chef_fs/file_system/must_delete_recursively_error'
require 'chef/chef_fs/file_system/not_found_error'
require 'chef/chef_fs/path_utils'
require 'fileutils'
class Chef
module ChefFS
module FileSystem
class FileSystemEntry < BaseFSDir
def initialize(name, parent, file_path = nil)
super(name, parent)
@file_path = file_path || "#{parent.file_path}/#{name}"
end
attr_reader :file_path
def path_for_printing
file_path
end
def children
# Except cookbooks and data bag dirs, all things must be json files
begin
Dir.entries(file_path).sort.
map { |child_name| make_child_entry(child_name) }.
select { |child| child && can_have_child?(child.name, child.dir?) }
rescue Errno::ENOENT
raise Chef::ChefFS::FileSystem::NotFoundError.new(self, $!)
end
end
def create_child(child_name, file_contents=nil)
child = make_child_entry(child_name)
if child.exists?
raise Chef::ChefFS::FileSystem::AlreadyExistsError.new(:create_child, child)
end
if file_contents
child.write(file_contents)
else
begin
Dir.mkdir(child.file_path)
rescue Errno::EEXIST
raise Chef::ChefFS::FileSystem::AlreadyExistsError.new(:create_child, child)
end
end
child
end
def dir?
File.directory?(file_path)
end
def delete(recurse)
if dir?
if !recurse
raise MustDeleteRecursivelyError.new(self, $!)
end
FileUtils.rm_rf(file_path)
else
File.delete(file_path)
end
end
def exists?
File.exists?(file_path) && parent.can_have_child?(name, dir?)
end
def read
begin
File.open(file_path, "rb") {|f| f.read}
rescue Errno::ENOENT
raise Chef::ChefFS::FileSystem::NotFoundError.new(self, $!)
end
end
def write(content)
File.open(file_path, 'wb') do |file|
file.write(content)
end
end
protected
def make_child_entry(child_name)
FileSystemEntry.new(child_name, self)
end
end
end
end
end
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