From b24832c22aa44d2f8b5ecddaf12e7878653af28f Mon Sep 17 00:00:00 2001
From: Christian Berendt <berendt@b1-systems.de>
Date: Wed, 7 Nov 2012 19:39:43 +0100
Subject: Make image sizes more readable for humans

By introducing the parameter --human-readable for several functions
(image-list, image-show, image-update, image-create) it's possible
to convert the size in bytes to something more readable like
9.309MB or 1.375GB.

Change-Id: I4e2654994361dcf330ed6d681dbed73388f159cb
---
 glanceclient/common/utils.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'glanceclient/common/utils.py')

diff --git a/glanceclient/common/utils.py b/glanceclient/common/utils.py
index 31b8530..628225d 100644
--- a/glanceclient/common/utils.py
+++ b/glanceclient/common/utils.py
@@ -168,3 +168,15 @@ def integrity_iter(iter, checksum):
         raise IOError(errno.EPIPE,
                       'Corrupt image download. Checksum was %s expected %s' %
                       (md5sum, checksum))
+
+
+def make_size_human_readable(size):
+    suffix = ['B', 'kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB']
+    base = 1024.0
+
+    index = 0
+    while size > base:
+        index = index + 1
+        size = size / base
+
+    return "%.3f%s" % (size, suffix[index])
-- 
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