1 files changed, 13 insertions, 7 deletions
diff --git a/be b/be
index f1e6cb3..e87ed0b 100755
--- a/be
+++ b/be
@@ -7,7 +7,9 @@ be comment: append a comment to a bug
 be set-root: assign the root directory for bug tracking
 """
 from libbe.cmdutil import *
+from libbe.bugdir import tree_root
 import sys
+import os
 
 def list_bugs(args):
     bugs = list(tree_root(os.getcwd()).list())
@@ -16,15 +18,19 @@ def list_bugs(args):
     for bug in bugs:
         print "%s: %s" % (unique_name(bug, bugs), bug.summary)
 
-
-        
     
 
 if len(sys.argv) == 1:
     print __doc__
 else:
-    {
-        "list": list_bugs
-    }[sys.argv[1]](sys.argv[2:])
-
-    
+    try:
+        try:
+            cmd = {
+                "list": list_bugs
+            }[sys.argv[1]]
+        except KeyError, e:
+            raise UserError("Unknown command \"%s\"" % e.args[0])
+        cmd(sys.argv[2:])
+    except UserError, e:
+        print e
+        sys.exit(1)