Add function to state module to return the low chunks

salt/modules/state.py

@@ -62,3 +62,13 @@ def highstate():
     '''
     st_ = salt.state.HighState(__opts__)
     return st_.call_highstate()
+
+def show_lowstate():
+    '''
+    List out the low data that will be applied to this minion
+
+    CLI Example:
+    salt '*' show_lowstate
+    '''
+    st_ = salt.state.HighState(__opts__)
+    return st_.compile_low_chunks()

salt/state.py

@@ -463,7 +463,6 @@ class State(object):
         Process a high data call and ensure the defined states.
         '''
         err = []
-        rets = []
         # Verify that the high data is structurally sound
         errors = self.verify_high(high)
         if errors:
@@ -649,3 +648,24 @@ class HighState(object):
         if errors:
             return errors
         return self.state.call_high(high)
+
+    def compile_low_chunks(self):
+        '''
+        Compile the highstate but don't run it, return the low chunks to see
+        exactly what the highstate will execute
+        '''
+        err = []
+        top = self.get_top()
+        matches = self.top_matches(top)
+        high, errors = self.render_highstate(matches)
+        # Verify that the high data is structurally sound
+        errors = self.state.verify_high(high)
+        # If there is extension data reconcile it
+        high, ext_errors = self.state.reconcile_extend(high)
+        errors += ext_errors
+        # Compile and verify the raw chunks
+        chunks = self.state.compile_high_data(high)
+        errors += self.state.verify_chunks(chunks)
+        if errors:
+            return errors
+        return chunks