summaryrefslogtreecommitdiff
path: root/lib/puppet/parser/functions/validate_nonemptystring.rb
diff options
context:
space:
mode:
Diffstat (limited to 'lib/puppet/parser/functions/validate_nonemptystring.rb')
-rw-r--r--lib/puppet/parser/functions/validate_nonemptystring.rb35
1 files changed, 35 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/validate_nonemptystring.rb b/lib/puppet/parser/functions/validate_nonemptystring.rb
new file mode 100644
index 0000000..d45fae5
--- /dev/null
+++ b/lib/puppet/parser/functions/validate_nonemptystring.rb
@@ -0,0 +1,35 @@
+module Puppet::Parser::Functions
+
+ newfunction(:validate_nonemptystring, :doc => <<-'ENDHEREDOC') do |args|
+ Validate that all passed values are string data structures and not empty
+ i.e. not undef or ''. Abort catalog compilation if any value fails this
+ check.
+
+ The following values will pass:
+
+ $my_string = "one two"
+ validate_string($my_string, 'three')
+
+ The following values will fail, causing compilation to abort:
+
+ validate_string(true)
+ validate_string([ 'some', 'array' ])
+ $undefined = undef
+ validate_string($undefined)
+
+ ENDHEREDOC
+
+ unless args.length > 0 then
+ raise Puppet::ParseError, ("validate_string(): wrong number of arguments (#{args.length}; must be > 0)")
+ end
+
+ args.each do |arg|
+ unless arg.is_a?(String)
+ raise Puppet::ParseError, ("#{arg.inspect} is not a string. It looks to be a #{arg.class}")
+ end
+ if arg == nil || arg == '' || arg == :undef
+ raise Puppet::ParseError, ("#{arg.inspect} is empty or undef")
+ end
+ end
+ end
+end