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#
# YAML::Store
#
require 'yaml'
require 'pstore'
# YAML::Store provides the same functionality as PStore, except it uses YAML
# to dump objects instead of Marshal.
#
# == Example
#
# require 'yaml/store'
#
# Person = Struct.new :first_name, :last_name
#
# people = [Person.new("Bob", "Smith"), Person.new("Mary", "Johnson")]
#
# store = YAML::Store.new "test.store"
#
# store.transaction do
# store["people"] = people
# store["greeting"] = { "hello" => "world" }
# end
#
# After running the above code, the contents of "test.store" will be:
#
# ---
# people:
# - !ruby/struct:Person
# first_name: Bob
# last_name: Smith
# - !ruby/struct:Person
# first_name: Mary
# last_name: Johnson
# greeting:
# hello: world
class YAML::Store < PStore
# :call-seq:
# initialize( file_name, yaml_opts = {} )
#
# Creates a new YAML::Store object, which will store data in +file_name+.
# If the file does not already exist, it will be created.
#
#
# Options passed in through +yaml_opts+ will be used when converting the
# store to YAML via Hash#to_yaml().
def initialize file_name, yaml_opts = {}
@opt = yaml_opts
super
end
# :stopdoc:
def dump(table)
YAML.dump @table
end
def load(content)
table = YAML.load(content)
if table == false
{}
else
table
end
end
def marshal_dump_supports_canonical_option?
false
end
EMPTY_MARSHAL_DATA = YAML.dump({})
EMPTY_MARSHAL_CHECKSUM = Digest::MD5.digest(EMPTY_MARSHAL_DATA)
def empty_marshal_data
EMPTY_MARSHAL_DATA
end
def empty_marshal_checksum
EMPTY_MARSHAL_CHECKSUM
end
end