Class: Valise::Strategies::MergeDiff::HashMerge
Instance Method Summary
collapse
#initialize
Methods inherited from Set
[], check!, classes, default, instance, instances, register, root_class, set_default
Instance Method Details
#deep_merge(collect, item) ⇒ Object
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# File 'lib/valise/strategies/merge-diff.rb', line 36
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
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#diff(item, new_contents) ⇒ Object
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# File 'lib/valise/strategies/merge-diff.rb', line 49
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
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#merge(item) ⇒ Object
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# File 'lib/valise/strategies/merge-diff.rb', line 26
def merge(item)
merge_stack(@stack.not_above(item).reverse)
end
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#merge_stack(stack) ⇒ Object
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# File 'lib/valise/strategies/merge-diff.rb', line 30
def merge_stack(stack)
stack.present.inject({}) do |hash, item|
deep_merge(hash, item.load_contents)
end
end
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