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#
# Author:: John Keiser (<jkeiser@opscode.com>)
# Copyright:: Copyright (c) 2013 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
#
# https://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_relative "data_already_exists_error"
require_relative "data_not_found_error"
require_relative "interface_v2"
require "fileutils" unless defined?(FileUtils)
module ChefZero
module DataStore
class RawFileStore < ChefZero::DataStore::InterfaceV2
def initialize(root, destructible = false)
@root = root
@destructible = destructible
end
attr_reader :root
attr_reader :destructible
def path_to(path, name = nil)
if name
File.join(root, *path, name)
else
File.join(root, *path)
end
end
def clear
if destructible
Dir.entries(root).each do |entry|
next if entry == "." || entry == ".."
FileUtils.rm_rf(Path.join(root, entry))
end
end
end
def create_dir(path, name, *options)
real_path = path_to(path, name)
if options.include?(:recursive)
FileUtils.mkdir_p(real_path)
else
begin
Dir.mkdir(File.join(path, name))
rescue Errno::ENOENT
raise DataNotFoundError.new(path)
rescue Errno::EEXIST
raise DataAlreadyExistsError.new(path + [name])
end
end
end
def create(path, name, data, *options)
if options.include?(:create_dir)
FileUtils.mkdir_p(path_to(path))
end
begin
File.open(path_to(path, name), File::WRONLY | File::CREAT | File::EXCL | File::BINARY, internal_encoding: nil) do |file|
file.write data
end
rescue Errno::ENOENT
raise DataNotFoundError.new(path)
rescue Errno::EEXIST
raise DataAlreadyExistsError.new(path + [name])
end
end
def get(path, request = nil)
IO.read(path_to(path))
rescue Errno::ENOENT
raise DataNotFoundError.new(path)
end
def set(path, data, *options)
if options.include?(:create_dir)
FileUtils.mkdir_p(path_to(path[0..-2]))
end
begin
mode = File::WRONLY | File::TRUNC | File::BINARY
if options.include?(:create)
mode |= File::CREAT
end
File.open(path_to(path), mode, internal_encoding: nil) do |file|
file.write data
end
rescue Errno::ENOENT
raise DataNotFoundError.new(path)
end
end
def delete(path)
File.delete(path_to(path))
rescue Errno::ENOENT
raise DataNotFoundError.new(path)
end
def delete_dir(path, *options)
if options.include?(:recursive)
unless File.exist?(path_to(path))
raise DataNotFoundError.new(path)
end
FileUtils.rm_rf(path_to(path))
else
begin
Dir.rmdir(path_to(path))
rescue Errno::ENOENT
raise DataNotFoundError.new(path)
end
end
end
def list(path)
Dir.entries(path_to(path)).select { |entry| entry != "." && entry != ".." }.to_a
rescue Errno::ENOENT
raise DataNotFoundError.new(path)
end
def exists?(path, options = {})
File.exist?(path_to(path))
end
def exists_dir?(path)
File.exist?(path_to(path))
end
end
end
end
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