[virt-bootstrap] [PATCH 1/3] utils: Add is_installed function

[Radostin Stoyanov <rstoyanov1@xxxxxxxxx>]

Add utility function to check whether an executable is available in
the PATH env variable.
---
 src/virtBootstrap/utils.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/virtBootstrap/utils.py b/src/virtBootstrap/utils.py
index 84d1629..2bd7873 100644
--- a/src/virtBootstrap/utils.py
+++ b/src/virtBootstrap/utils.py
@@ -32,6 +32,7 @@ import subprocess
 import sys
 import tempfile
 import logging
+from distutils.spawn import find_executable
 
 import guestfs
 import passlib.hosts
@@ -646,3 +647,12 @@ def mapping_uid_gid(dest, uid_map, gid_map):
     balance_uid_gid_maps(uid_map, gid_map)
     for uid, gid in zip(uid_map, gid_map):
         map_id(dest, uid, gid)
+
+
+def is_installed(executable):
+    """
+    Try to find executable listed in the PATH env variable.
+
+    Returns the complete filename or None if not found.
+    """
+    return find_executable(executable)
-- 
2.13.6

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