From b47cdfea268a1dad1345568a791c017865192513 Mon Sep 17 00:00:00 2001
From: Bob Lantz <rlantz@cs.stanford.edu>
Date: Mon, 16 Aug 2010 23:01:06 -0700
Subject: [PATCH] Added pathCheck for additional sanity when OF/OVS isn't
installed.
---
mininet/moduledeps.py | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/mininet/moduledeps.py b/mininet/moduledeps.py
index b21c629f..f954e034 100644
--- a/mininet/moduledeps.py
+++ b/mininet/moduledeps.py
@@ -2,6 +2,7 @@
from mininet.util import quietRun
from mininet.log import info, error, debug
+from os import environ
def lsmod():
"Return output of lsmod."
@@ -54,3 +55,12 @@ def moduleDeps( subtract=None, add=None ):
exit( 1 )
else:
debug( '*** ' + mod + ' already loaded\n' )
+
+def pathCheck( *args ):
+ "Make sure each program in *args can be found in $PATH."
+ for arg in args:
+ if not quietRun( 'which ' + arg ):
+ error( 'Cannot find required executable %s -'
+ ' is it installed somewhere in your $PATH?\n(%s)\n' %
+ ( arg, environ[ 'PATH' ] ) )
+ exit( 1 )
--
GitLab