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module LeapCli
module Config
#
# A list of Config::Object instances (internally stored as a hash)
#
class ObjectList < Hash
def initialize(config=nil)
if config
self.add(config['name'], config)
end
end
#
# If the key is a string, the Config::Object it references is returned.
#
# If the key is a hash, we treat it as a condition and filter all the Config::Objects using the condition.
# A new ObjectList is returned.
#
# Examples:
#
# nodes['vpn1']
# node named 'vpn1'
#
# nodes[:public_dns => true]
# all nodes with public dns
#
# nodes[:services => 'openvpn', :services => 'tor']
# nodes with openvpn OR tor service
#
# nodes[:services => 'openvpn'][:tags => 'production']
# nodes with openvpn AND are production
#
def [](key)
if key.is_a? Hash
results = Config::ObjectList.new
key.each do |field, match_value|
field = field.is_a?(Symbol) ? field.to_s : field
match_value = match_value.is_a?(Symbol) ? match_value.to_s : match_value
if match_value.is_a?(String) && match_value =~ /^!/
operator = :not_equal
match_value = match_value.sub(/^!/, '')
else
operator = :equal
end
each do |name, config|
value = config[field]
if value.is_a? Array
if value.include?(match_value)
results[name] = config
end
else
if operator == :equal && value == match_value
results[name] = config
elsif operator == :not_equal && value != match_value
results[name] = config
end
end
end
end
results
else
super key.to_s
end
end
def each_node(&block)
self.keys.sort.each do |node_name|
yield self[node_name]
end
end
# def <<(object)
# if object.is_a? Config::ObjectList
# self.merge!(object)
# elsif object['name']
# self[object['name']] = object
# else
# raise ArgumentError.new('argument must be a Config::Object or a Config::ObjectList')
# end
# end
def add(name, object)
self[name] = object
end
#
# converts the hash of configs into an array of hashes, with ONLY the specified fields
#
def fields(*fields)
result = []
keys.sort.each do |name|
result << self[name].pick(*fields)
end
result
end
#
# like fields(), but returns an array of values instead of an array of hashes.
#
def field(field)
field = field.to_s
result = []
keys.sort.each do |name|
result << self[name].get(field)
end
result
end
#
# applies inherit_from! to all objects.
#
def inherit_from!(object_list)
object_list.each do |name, object|
if self[name]
self[name].inherit_from!(object)
else
self[name] = object.dup
end
end
end
end
end
end
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