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author | Martin Hellmich <mhellmic@gmail.com> | 2013-04-22 23:24:38 +0200 |
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committer | Martin Hellmich <mhellmic@gmail.com> | 2013-04-22 23:24:38 +0200 |
commit | 89bceb2821d82c64434e6529de48ec7d7389a13e (patch) | |
tree | 28378bbd407cae78abbff2a1fc86349db9d58c0b /lib/puppet/parser/functions/is_function_available.rb | |
parent | 0c622b2e30333f26103a4440a888d440cf455c9c (diff) | |
parent | bebecd33783b483f6af059e311b9631d3a3336cc (diff) |
Merge branch 'master' of git://github.com/puppetlabs/puppetlabs-stdlib
Diffstat (limited to 'lib/puppet/parser/functions/is_function_available.rb')
-rw-r--r-- | lib/puppet/parser/functions/is_function_available.rb | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/is_function_available.rb b/lib/puppet/parser/functions/is_function_available.rb new file mode 100644 index 0000000..6cbd35c --- /dev/null +++ b/lib/puppet/parser/functions/is_function_available.rb @@ -0,0 +1,23 @@ +# +# is_function_available.rb +# + +module Puppet::Parser::Functions + newfunction(:is_function_available, :type => :rvalue, :doc => <<-EOS +This function accepts a string as an argument, determines whether the +Puppet runtime has access to a function by that name. It returns a +true if the function exists, false if not. + EOS + ) do |arguments| + + if (arguments.size != 1) then + raise(Puppet::ParseError, "is_function_available?(): Wrong number of arguments "+ + "given #{arguments.size} for 1") + end + + function = Puppet::Parser::Functions.function(arguments[0].to_sym) + function.is_a?(String) and not function.empty? + end +end + +# vim: set ts=2 sw=2 et : |