Sha256: 0e0bc4ee746d98e72048338c578cadd99a2296daa54ca461a5444137e65b21a0
Contents?: true
Size: 1.39 KB
Versions: 56
Compression:
Stored size: 1.39 KB
Contents
require 'epitools'
require 'dbm'
require 'delegate'
class Ezdc < DelegateClass(Hash)
attr_reader :db, :path, :dirty
@@dirty = Set.new
def initialize(filename)
@path = Path[filename]
if @path.ext.nil?
@path.ext = "db"
else
@path.ext += ".db" if @path.ext != 'db'
end
@db = DBM::open(@path.with(:ext=>nil))
super
end
class Observed < BasicObject
MUTATORS = ::Set.new [
:<<, :push, :pop, :slice, :[]=
]
def __send__(meth, *args)
if MUTATORS.include? meth
@@dirty.add self
end
end
end
def observed(obj)
obj.using(Observed)
end
def [](key)
observed(super[key])
end
def []=(key, val)
end
def keys
db.keys.map(&:unmarshal)
end
def delete!
@path.rm
end
def flush!
dirty.each do |key|
db[key.marshal] = super[key].marshal
end
end
end
class Ezdb
attr_reader :db, :path
def initialize(filename)
@path = Path[filename]
if @path.ext.nil?
@path.ext = "db"
else
@path.ext += ".db" if @path.ext != 'db'
end
@db = DBM::open(@path.with(:ext=>nil))
end
def [](key)
val = db[key.marshal]
val = val.unmarshal if val
val
end
def []=(key, val)
db[key.marshal] = val.marshal
end
def keys
db.keys.map(&:unmarshal)
end
def delete!
@path.rm
end
end
Version data entries
56 entries across 56 versions & 1 rubygems