other/Puppet: modules/php/lib/puppet/parser/functions/ensure

Add a PHP module to handle platform differences

comparison

equal deleted inserted replaced

-:d9009f54eb23
+:3fce34f642f1
+module Puppet::Parser::Functions
+newfunction(:ensure_prefix, type: :rvalue, doc: <<-EOS
+This function ensures a prefix for all elements in an array or the keys in a hash.
+*Examples:*
+ensure_prefix({'a' => 1, 'b' => 2, 'p.c' => 3}, 'p.')
+Will return:
+{
+'p.a' => 1,
+'p.b' => 2,
+'p.c' => 3,
+}
+ensure_prefix(['a', 'p.b', 'c'], 'p.')
+Will return:
+['p.a', 'p.b', 'p.c']
+EOS
+) do |arguments|
+if arguments.size < 2
+raise(Puppet::ParseError, 'ensure_prefix(): Wrong number of arguments ' \
+"given (#{arguments.size} for 2)")
+end
+enumerable = arguments[0]
+unless enumerable.is_a?(Array) || enumerable.is_a?(Hash)
+raise Puppet::ParseError, "ensure_prefix(): expected first argument to be an Array or a Hash, got #{enumerable.inspect}"
+end
+prefix = arguments[1] if arguments[1]
+if prefix
+unless prefix.is_a?(String)
+raise Puppet::ParseError, "ensure_prefix(): expected second argument to be a String, got #{prefix.inspect}"
+end
+end
+result = if enumerable.is_a?(Array)
+# Turn everything into string same as join would do ...
+enumerable.map do |i|
+i = i.to_s
+prefix && !i.start_with?(prefix) ? prefix + i : i
+end
+else
+Hash[enumerable.map do |k, v|
+k = k.to_s
+[prefix && !k.start_with?(prefix) ? prefix + k : k, v]
+end]
+end
+return result
+end
+end

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