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# File 'lib/capistrano-notification.rb', line 14
def self.var(name, opts = {})
define_method name do |*args, &block|
case args.size
when 0
unless block
if value = instance_variable_get("@#{name}")
value.is_a?(Proc) ? value.call(self) : value
else
default = opts[:default]
send name, default.is_a?(Proc) ? default.call(self) : default
end
else
instance_variable_set "@#{name}", block
end
when 1
instance_variable_set "@#{name}", args.first
else
raise ArgumentError, "wrong number of arguments (#{args.size} for 0 or 1)"
end
end
if opts[:required]
validates_presence_of name
end
end
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