krb5 commit: Add "which" function to k5test

[Greg Hudson]

https://github.com/krb5/krb5/commit/1f1b76ab8937c2cb0273cc5d8a7ee806240e1879
commit 1f1b76ab8937c2cb0273cc5d8a7ee806240e1879
Author: Greg Hudson <ghudson at mit.edu>
Date:   Sat Sep 28 14:56:22 2013 -0400

    Add "which" function to k5test
    
    Add a utility function in k5test.py to look for a command in the
    executable path, and remove it from t_kdb.py.

 src/tests/t_kdb.py |    9 ---------
 src/util/k5test.py |   13 +++++++++++++
 2 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/src/tests/t_kdb.py b/src/tests/t_kdb.py
index 70fe58a..64ce682 100644
--- a/src/tests/t_kdb.py
+++ b/src/tests/t_kdb.py
@@ -2,15 +2,6 @@
 from k5test import *
 import time
 
-# Return the location of progname in tht executable path, or None if
-# it is not found.
-def which(progname):
-    for dir in os.environ["PATH"].split(os.pathsep):
-        path = os.path.join(dir, progname)
-        if os.access(path, os.X_OK):
-            return path
-    return None
-
 # Run kdbtest against the BDB module.
 realm = K5Realm(create_kdb=False)
 realm.run(['./kdbtest'])
diff --git a/src/util/k5test.py b/src/util/k5test.py
index 017aa0c..aead832 100644
--- a/src/util/k5test.py
+++ b/src/util/k5test.py
@@ -133,6 +133,9 @@ Scripts may use the following functions and variables:
   added newline) in testlog, and write it to stdout if running
   verbosely.
 
+* which(progname): Return the location of progname in the executable
+  path, or None if it is not found.
+
 * password(name): Return a weakly random password based on name.  The
   password will be consistent across calls with the same name.
 
@@ -371,6 +374,16 @@ def output(msg, force_verbose=False):
         sys.stdout.write(msg)
 
 
+# Return the location of progname in the executable path, or None if
+# it is not found.
+def which(progname):
+    for dir in os.environ["PATH"].split(os.pathsep):
+        path = os.path.join(dir, progname)
+        if os.access(path, os.X_OK):
+            return path
+    return None
+
+
 def password(name):
     """Choose a weakly random password from name, consistent across calls."""
     return name + str(os.getpid())