diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/puppet/parser/functions/has_key.rb | 27 | ||||
-rw-r--r-- | lib/puppet/parser/functions/merge.rb | 28 |
2 files changed, 55 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/has_key.rb b/lib/puppet/parser/functions/has_key.rb new file mode 100644 index 0000000..9c1c4c3 --- /dev/null +++ b/lib/puppet/parser/functions/has_key.rb @@ -0,0 +1,27 @@ +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 diff --git a/lib/puppet/parser/functions/merge.rb b/lib/puppet/parser/functions/merge.rb new file mode 100644 index 0000000..6693884 --- /dev/null +++ b/lib/puppet/parser/functions/merge.rb @@ -0,0 +1,28 @@ +module Puppet::Parser::Functions + + newfunction(:merge, :type => :rvalue, :doc => <<-'ENDHEREDOC') do |args| + Merges two or more hashes together and returns the resulting hash. + + For example: + + $hash1 = {'one' => 1, 'two', => 2} + $hash1 = {'two' => 2, 'three', => 2} + $merged_hash = merge($hash1, $hash2) + # merged_hash = {'one' => 1, 'two' => 2, 'three' => 2} + + ENDHEREDOC + + if args.length < 2 + raise Puppet::ParseError, ("merge(): wrong number of arguments (#{args.length}; must be at least 2)") + end + args.each do |arg| + unless arg.is_a?(Hash) + raise Puppet::ParseError, "merge: unexpected argument type #{arg.class}, only expects hash arguments" + end + end + + args.inject({}, :merge) + + end + +end |