1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
#
# 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
#
# 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_zero/data_store/data_already_exists_error'
require 'chef_zero/data_store/data_not_found_error'
require 'chef_zero/data_store/interface_v2'
require '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)
begin
return IO.read(path_to(path))
rescue Errno::ENOENT
raise DataNotFoundError.new(path)
end
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)
begin
File.delete(path_to(path))
rescue Errno::ENOENT
raise DataNotFoundError.new(path)
end
end
def delete_dir(path, *options)
if options.include?(:recursive)
if !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)
begin
Dir.entries(path_to(path)).select { |entry| entry != '.' && entry != '..' }.to_a
rescue Errno::ENOENT
raise DataNotFoundError.new(path)
end
end
def exists?(path, options = {})
File.exists?(path_to(path))
end
def exists_dir?(path)
File.exists?(path_to(path))
end
end
end
end
|