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Contents?: true
Size: 1.14 KB
Versions: 12
Compression:
Stored size: 1.14 KB
Contents
require 'yaml'
# A store backed by a persistent on-disk yaml file.
class Robut::Storage::YamlStore < Robut::Storage::Base
class << self
# The path to the file this store will persist to.
attr_reader :file
# Sets the path to the file this store will persist to, and forces
# a reload of all of the data.
def file=(f)
@file = f
@internal = nil # force reload
@file
end
# Sets the key +k+ to the value +v+
def []=(k, v)
internal[k] = v
persist!
v
end
# Returns the value at the key +k+.
def [](k)
internal[k]
end
private
# The internal in-memory representation of the yaml file
def internal
@internal ||= load_from_file
end
# Persists the data in this store to disk. Throws an exception if
# we don't have a file set.
def persist!
raise "Robut::Storage::YamlStore.file must be set" unless file
File.open(file, "w") do |f|
f.puts internal.to_yaml
end
end
def load_from_file
begin
store = YAML.load_file(file)
rescue Errno::ENOENT
end
store || Hash.new
end
end
end
Version data entries
12 entries across 12 versions & 2 rubygems