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authorValerii Ponomarov <vponomar@redhat.com>2019-03-07 20:30:44 +0530
committervponomar <vponomar@redhat.com>2019-03-18 11:34:37 +0000
commit32b611b2a6498b1de307142e335e09d1e0ec082c (patch)
treeaaf600ab6e6adabab7c3facbf30ae6f056731969 /openshift-storage-libs/openshiftstoragelibs/naming.py
parent0fcdb081517c5904969b89b20326d21b361e448e (diff)
Reorder lib files removing redundant dir layer
Move all the files of 'cns-libs/cnslibs/common' dir to the 'openshift-storage-libs/openshiftstoragelibs', because 'common' is the only dir there, which doesn't really makes sense. And "cns" is old project name, so, replace it with "openshift-storage-libs". Also, fix all the imports of these libs. Change-Id: Ife00a73554e73b21b214b15016b0c8dbbf423446
Diffstat (limited to 'openshift-storage-libs/openshiftstoragelibs/naming.py')
-rw-r--r--openshift-storage-libs/openshiftstoragelibs/naming.py56
1 files changed, 56 insertions, 0 deletions
diff --git a/openshift-storage-libs/openshiftstoragelibs/naming.py b/openshift-storage-libs/openshiftstoragelibs/naming.py
new file mode 100644
index 0000000..b44559a
--- /dev/null
+++ b/openshift-storage-libs/openshiftstoragelibs/naming.py
@@ -0,0 +1,56 @@
+"""Helper functions for working with names for volumes, resources, etc.
+"""
+
+import string
+import random
+import re
+
+# we only use lowercase here because kubernetes requires
+# names to be lowercase or digits, so that is our default
+UNIQUE_CHARS = (string.lowercase + string.digits)
+
+
+def make_unique_label(prefix=None, suffix=None, sep='-',
+ clean=r'[^a-zA-Z0-9]+', unique_len=8,
+ unique_chars=UNIQUE_CHARS):
+ """Generate a unique name string based on an optional prefix,
+ suffix, and pseudo-random set of alphanumeric characters.
+
+ Args:
+ prefix (str): Start of the unique string.
+ suffix (str): End of the unique string.
+ sep (str): Separator string (between sections/invalid chars).
+ clean (str): Reqular expression matching invalid chars.
+ that will be replaced by `sep` if found in the prefix or suffix
+ unique_len (int): Length of the unique part.
+ unique_chars (str): String representing the set of characters
+ the unique part will draw from.
+ Returns:
+ str: The uniqueish string.
+ """
+ cre = re.compile(clean)
+ parts = []
+ if prefix:
+ parts.append(cre.sub(sep, prefix))
+ parts.append(''.join(random.choice(unique_chars)
+ for _ in range(unique_len)))
+ if suffix:
+ parts.append(cre.sub(sep, suffix))
+ return sep.join(parts)
+
+
+def extract_method_name(full_name, keep_class=False):
+ """Given a full test name as returned from TestCase.id() return
+ just the method part or class.method.
+
+ Args:
+ full_name (str): Dot separated name of test.
+ keep_class (str): Retain the class name, if false only the
+ method name will be returned.
+ Returns:
+ str: Method name or class.method_name.
+ """
+ offset = -1
+ if keep_class:
+ offset = -2
+ return '.'.join(full_name.split('.')[offset:])