Rudder

The system variable RUDDER_REPORT_MODE should contain value "changes-only" or "full-compliance", to tell the promises what mode to run in.

This is correctly defined in cf-clerk:

./src/main/scala/com/normation/cfclerk/services/impl/SystemVariableSpecServiceImpl.scala:154:    , SystemVariableSpec("RUDDER_REPORT_MODE", "Defines if Rudder should send compliance reports or only change (error, repair) one. (default full-compliance)" 

But never used in rudder:

$ grep -rHni REPORT_MODE rudder/
$

And of course, this means the value is never set in the generated promises:

      # on changes only, we only reports on repaired or error message
      "changes_only" expression => strcmp("", "changes-only");

      # full compliance is the default mode
      "full_compliance" not => "changes_only";

(that empty string on line 2 should be "changes-only" or "full-compliance")