Class: Moneta::Adapters::File
Overview
Instance Method Summary
collapse
Methods inherited from Base
#[], #[]=, #close, #decrement, #fetch
#expires, #prefix, #raw, #with
Constructor Details
#initialize(options = {}) ⇒ File
14
15
16
17
18
|
# File 'lib/moneta/adapters/file.rb', line 14
def initialize(options = {})
raise ArgumentError, 'Option :dir is required' unless @dir = options[:dir]
FileUtils.mkpath(@dir)
raise "#{@dir} is not a directory" unless ::File.directory?(@dir)
end
|
Instance Method Details
#clear(options = {}) ⇒ Object
49
50
51
52
53
54
55
56
57
|
# File 'lib/moneta/adapters/file.rb', line 49
def clear(options = {})
temp_dir = "#{@dir}-#{$$}-#{Thread.current.object_id}"
::File.rename(@dir, temp_dir)
FileUtils.mkpath(@dir)
FileUtils.rm_rf(temp_dir)
self
rescue Errno::ENOENT
self
end
|
#delete(key, options = {}) ⇒ Object
42
43
44
45
46
47
|
# File 'lib/moneta/adapters/file.rb', line 42
def delete(key, options = {})
value = load(key, options)
::File.unlink(store_path(key))
value
rescue Errno::ENOENT
end
|
#increment(key, amount = 1, options = {}) ⇒ Object
59
60
61
|
# File 'lib/moneta/adapters/file.rb', line 59
def increment(key, amount = 1, options = {})
lock(key) { super }
end
|
#key?(key, options = {}) ⇒ Boolean
20
21
22
|
# File 'lib/moneta/adapters/file.rb', line 20
def key?(key, options = {})
::File.exist?(store_path(key))
end
|
#load(key, options = {}) ⇒ Object
24
25
26
27
|
# File 'lib/moneta/adapters/file.rb', line 24
def load(key, options = {})
::File.read(store_path(key))
rescue Errno::ENOENT
end
|
#store(key, value, options = {}) ⇒ Object
29
30
31
32
33
34
35
36
37
38
39
40
|
# File 'lib/moneta/adapters/file.rb', line 29
def store(key, value, options = {})
path = store_path(key)
temp_file = ::File.join(@dir, "value-#{$$}-#{Thread.current.object_id}")
FileUtils.mkpath(::File.dirname(path))
::File.open(temp_file, 'wb') {|file| file.write(value) }
::File.unlink(path) if ::File.exist?(path)
::File.rename(temp_file, path)
value
rescue Errno::ENOENT
::File.unlink(temp_file) rescue nil
value
end
|