rubu.rb in rubu-0.0.4

- old
+ new

@@ -1,10 +1,9 @@
 require 'open3'
 require 'yaml'
 require 'digest/md5'
 
-
 module Rubu
 
     # Persistent state of Rubu.
     #
     # State maintains YAML based state file (if in use). The file
@@ -57,10 +56,11 @@
 
     # Move is the action in Step.
     class Move
 
         @@host = []
+        @@show_shell_warning = true
 
         # Status after execution.
         attr_reader :status
 
         # Storage for error message.
@@ -105,16 +105,25 @@
         def error( msg )
             @errmsg = msg
             STDERR.puts "Rubu Error: #{@errmsg}"
         end
 
+        # Report warning.
+        def warn( msg )
+            STDERR.puts "Rubu Warning: #{msg}"
+        end
+
         # Display command output.
         def display( msg )
             @output = msg
             STDOUT.puts @output
         end
 
+        def set_show_shell_warning( value = true )
+            @@show_shell_warning = value
+        end
+
     end
 
 
     # Shell based command.
     class ShellCommand < Move
@@ -132,10 +141,13 @@
                 if Order[ :verbose ]
                     STDOUT.puts @cmd
                 end
 
                 if status.exitstatus == 0
+                    if @@show_shell_warning && not( stderr.empty? )
+                        warn( stderr )
+                    end
                     @status = :success
                 else
                     @status = :error
                     error( stderr )
                 end
@@ -523,9 +535,14 @@
 
 
         # Setup variables for Step. Should be defined again in derived
         # classes.
         def setup
+        end
+
+
+        # Default to no action. Typically this method is redefined.
+        def step
         end
 
 
         # Run Step and capture status.
         def run