Sha256: 9154e1889d25e3b248deb857e90cee5e6dcec7ea6f79565535d1cbe7651c7cfb
Contents?: true
Size: 1.42 KB
Versions: 6
Compression:
Stored size: 1.42 KB
Contents
require 'valise/strategies/set'
module Valise
module Strategies
class MergeDiff < Set
def initialize(options)
@stack = options[:stack]
end
class TopMost < MergeDiff
register :topmost
default
def merge(item)
item.load_contents
end
def diff(item, value)
value
end
end
class HashMerge < MergeDiff
register :hash_merge
def merge(item)
merge_stack(@stack.not_above(item).reverse)
end
def merge_stack(stack)
stack.present.inject({}) do |hash, item|
deep_merge(hash, item.load_contents)
end
end
def deep_merge(collect, item)
item.each_pair do |key, value|
case value
when Hash
collect[key] ||= {}
deep_merge(collect[key], value)
else
collect[key] = value
end
end
collect
end
def diff(item, new_contents)
diff_with = merge_stack(@stack.below(item).reverse)
result = new_contents.dup
diff_with.each_pair do |key, value|
if result.has_key?(key)
if result[key] == value
result.delete(key)
end
else
result[key] = nil
end
end
result
end
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems