extlookup not working correctly in 2.7.6

[Jason Koppe]

I'm trying to upgrade from 2.6.7 to to 2.7.6 and I'm running into an
issue in my extlookup() calls. A lot of the variables which should be
defined aren't defined within extlookup.rb. I've tested 2.6.7 agent
and 2.7.5 agent against the 2.6.7 master and 2.7.6 master. I adjusted
extlookup.rb slightly to provide some debug output.

http://pastie.org/private/jsmyxrfhggcvflxcioibq shows:
* my 2.7.5 puppet agent failure when run against the 2.7.6 puppet
master
* git diff of extlookup.rb in the 2.7.6 branch
* debug extlookup log output from the 2.7.6 master
* debug extlookup log output from the 2.6.7 master
* extlookup precedence set in site.pp

The same manifests/extlookup configuration work on the "newpuppet"
environment when using a 2.6.7 agent against the 2.6.7 master.

[Jason Koppe]

I diff'd the extlookup.rb between 2.6.7 and 2.7.6 and noticed this was
different, so I changed it back and things are working again:

--> git diff ./lib/puppet/parser/functions/extlookup.rb
diff --git a/lib/puppet/parser/functions/extlookup.rb b/lib/puppet/
parser/functions/extlookup.rb
index 5fbf26c..818f7c7 100644
--- a/lib/puppet/parser/functions/extlookup.rb
+++ b/lib/puppet/parser/functions/extlookup.rb
@@ -93,7 +93,7 @@ This is for back compatibility to interpolate
variables with %. % interpolation

extlookup_datadir = undef_as('',lookupvar('::extlookup_datadir'))

- extlookup_precedence =
undef_as([],lookupvar('::extlookup_precedence')).collect { |var|
var.gsub(/%\{(.+?)\}/) { lookupvar("::#{$1}") } }
+ extlookup_precedence =
undef_as([],lookupvar('::extlookup_precedence')).collect { |var|
var.gsub(/%\{(.+?)\}/) { lookupvar($1) } }

datafiles = Array.new

[R.I.Pienaar]

might be this, not sure.

http://projects.puppetlabs.com/issues/9854

[Jason Koppe]

looks like that's it. i'll use the workaround nigel recommended in
that issue (same as my diff above) until that issue is resolved.

thanks for the quick response, R.I.!