29 lines
787 B
Ruby
29 lines
787 B
Ruby
module Puppet::Parser::Functions
|
|
|
|
newfunction(:has_key, :type => :rvalue, :doc => <<-'ENDHEREDOC') do |args|
|
|
Determine if a hash has a certain key value.
|
|
|
|
Example:
|
|
|
|
$my_hash = {'key_one' => 'value_one'}
|
|
if has_key($my_hash, 'key_two') {
|
|
notice('we will not reach here')
|
|
}
|
|
if has_key($my_hash, 'key_one') {
|
|
notice('this will be printed')
|
|
}
|
|
|
|
ENDHEREDOC
|
|
|
|
unless args.length == 2
|
|
raise Puppet::ParseError, ("has_key(): wrong number of arguments (#{args.length}; must be 2)")
|
|
end
|
|
unless args[0].is_a?(Hash)
|
|
raise Puppet::ParseError, "has_key(): expects the first argument to be a hash, got #{args[0].inspect} which is of type #{args[0].class}"
|
|
end
|
|
args[0].has_key?(args[1])
|
|
|
|
end
|
|
|
|
end
|