fix #2906: no traceback for CLI errors...

pisi-cli

@@ -19,7 +19,7 @@ import bsddb3.db as db
 
 import pisi.ui
 import pisi.context as ctx
-from pisi.cli.pisicli import PisiCLI
+from pisi.cli.pisicli import PisiCLI, CLIError
 
 import gettext
 __trans = gettext.translation('pisi', fallback=True)
@@ -64,7 +64,8 @@ Please file a bug report. (http://bugs.uludag.org.tr)"""))
         ui.info(_("Traceback:"))
         traceback.print_tb(tb)
     else:
-        ui.info(_("Use --debug to see a traceback."))
+        if not exception is CLIError:
+            ui.info(_("Use --debug to see a traceback."))
 
     exit()
 

pisi/cli/pisicli.py

@@ -29,6 +29,10 @@ class ParserError(pisi.Exception):
 class Error(pisi.Error):
     pass
 
+class CLIError(Error):
+    pass
+
+
 class PreParser(OptionParser):
     """consumes any options, and finds arguments from command line"""
 
@@ -94,14 +98,14 @@ class PisiCLI(object):
                     sys.exit(0)
                 elif 'help' in opts or 'h' in opts:
                     self.die()
-                raise Error(_('No command given'))
+                raise CLIError(_('No command given'))
             cmd_name = args[0]
         except ParserError:
-            raise Error(_('Command line parsing error'))
+            raise CLIError(_('Command line parsing error'))
 
         self.command = Command.get_command(cmd_name, args=orig_args)
         if not self.command:
-            raise Error(_("Unrecognized command: %s") % cmd_name)
+            raise CLIError(_("Unrecognized command: %s") % cmd_name)
 
     def die(self):
         printu('\n' + self.parser.format_help())