[llvm-commits] [zorg] r101734 - /zorg/trunk/lnt/lnt/testing/util/commands.py

[Daniel Dunbar]

Author: ddunbar
Date: Sun Apr 18 14:18:27 2010
New Revision: 101734

URL: http://llvm.org/viewvc/llvm-project?rev=101734&view=rev
Log:
LNT: Print a nicer failure message when trying to call a program that doesn't exist.

Modified:
    zorg/trunk/lnt/lnt/testing/util/commands.py

Modified: zorg/trunk/lnt/lnt/testing/util/commands.py
URL: http://llvm.org/viewvc/llvm-project/zorg/trunk/lnt/lnt/testing/util/commands.py?rev=101734&r1=101733&r2=101734&view=diff
==============================================================================
--- zorg/trunk/lnt/lnt/testing/util/commands.py (original)
+++ zorg/trunk/lnt/lnt/testing/util/commands.py Sun Apr 18 14:18:27 2010
@@ -2,6 +2,7 @@
 Miscellaneous utilities for running "scripts".
 """
 
+import errno
 import inspect
 import os
 import sys
@@ -37,7 +38,12 @@
     stderr = subprocess.PIPE
     if include_stderr:
         stderr = subprocess.STDOUT
-    p = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=stderr)
+    try:
+        p = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=stderr)
+    except OSError,e:
+        if e.errno == errno.ENOENT:
+            fatal('no such file or directory: %r' % args[0])
+        raise
     out,_ = p.communicate()
     return out