Add various Windows syspreps

[snf-image-creator] / image_creator / util.py

diff --git a/image_creator/util.py b/image_creator/util.py
index fb0d0fa..b2b5f55 100644 (file)
--- a/image_creator/util.py
+++ b/image_creator/util.py
@@ -87,6 +87,26 @@ def free_space(dirname):
     return stat.f_bavail * stat.f_frsize
 
 
+def check_guestfs_version(ghandler, major, minor, release):
+    """Checks if the version of the used libguestfs is smaller, equal or
+    greater than the one specified by the major, minor and release triplet
+
+    Returns:
+        < 0 if the installed version is smaller than the specified one
+        = 0 if they are equal
+        > 0 if the installed one is greater than the specified one
+    """
+
+    ver = ghandler.version()
+
+    for (a, b) in (ver['major'], major), (ver['minor'], minor), \
+            (ver['release'], release):
+        if a != b:
+            return a - b
+
+    return 0
+
+
 class MD5:
     """Represents MD5 computations"""
     def __init__(self, output):