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|
# frozen_string_literal: true
module Gitlab
module Utils
module InlineHash
extend self
# Transforms a Hash into an inline Hash by merging its nested keys.
#
# Input
#
# {
# 'root_param' => 'Root',
# 12 => 'number',
# symbol: 'symbol',
# nested_param: {
# key: 'Value'
# },
# 'very' => {
# 'deep' => {
# 'nested' => {
# 12 => 'Deep nested value'
# }
# }
# }
# }
#
#
# Result
#
# {
# 'root_param' => 'Root',
# 12 => 'number',
# symbol: symbol,
# 'nested_param.key' => 'Value',
# 'very.deep.nested.12' => 'Deep nested value'
# }
#
def merge_keys(hash, prefix: nil, connector: '.')
result = {}
pairs =
if prefix
base_prefix = "#{prefix}#{connector}"
hash.map { |key, value| ["#{base_prefix}#{key}", value] }
else
hash.to_a
end
until pairs.empty?
key, value = pairs.shift
if value.is_a?(Hash)
value.each { |k, v| pairs.unshift ["#{key}#{connector}#{k}", v] }
else
result[key] = value
end
end
result
end
end
end
end
|
