From 6c1c0adadaf190e77dc017a8a40c90249f0a055b Mon Sep 17 00:00:00 2001
From: Mike Naberezny <mike@naberezny.com>
Date: Wed, 25 May 2016 10:22:06 -0700
Subject: [PATCH] Remove unused trackrefs module

---
 CHANGES.txt                   |   3 +
 COPYRIGHT.txt                 |   9 ---
 supervisor/tests/trackrefs.py | 138 ----------------------------------
 3 files changed, 3 insertions(+), 147 deletions(-)
 delete mode 100644 supervisor/tests/trackrefs.py

diff --git a/CHANGES.txt b/CHANGES.txt
index 2681199c5..f1aa55e5e 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -28,6 +28,9 @@
   error condition occurs.  Previous versions did not set the exit status so
   it was always zero.  Patch by Luke Weber.
 
+- Zope ``trackrefs``, a debugging tool that was included in the ``tests``
+  directory but hadn't been used for years, has been removed.
+
 3.3.0 (2016-05-14)
 ------------------
 
diff --git a/COPYRIGHT.txt b/COPYRIGHT.txt
index 382fc4d7a..20f4e35fc 100644
--- a/COPYRIGHT.txt
+++ b/COPYRIGHT.txt
@@ -9,15 +9,6 @@ Supervisor is Copyright (c) 2006-2015 Agendaless Consulting and Contributors.
   MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS FOR A PARTICULAR
   PURPOSE.
 
-TrackRefs code Copyright (c) 2007 Zope Corporation and Contributors
-
-  This software is subject to the provisions of the Zope Public License,
-  Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
-  THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
-  WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-  WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
-  FOR A PARTICULAR PURPOSE.
-
 medusa was (is?) Copyright (c) Sam Rushing.
 
 http_client.py code Copyright (c) by Daniel Krech, http://eikeon.com/.
diff --git a/supervisor/tests/trackrefs.py b/supervisor/tests/trackrefs.py
deleted file mode 100644
index c20231924..000000000
--- a/supervisor/tests/trackrefs.py
+++ /dev/null
@@ -1,138 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2007 Zope Corporation and Contributors.
-# All Rights Reserved.
-#
-# This software is subject to the provisions of the Zope Public License,
-# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
-# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
-# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
-# FOR A PARTICULAR PURPOSE
-#
-##############################################################################
-
-""" Code from the zope.testing module to help track down memory leaks
-
-TrackRefs works only in a python compiled with the --with-pydebug flag.
-An example of how to use TrackRefs in a function is below.
-
-glen = 0
-rc = 0
-
-def doit():
-    newglen = gc.collect()
-    global glen
-    if newglen > glen:
-        print
-        print "-------------------------------------"
-        print "more garbage", newglen - glen
-        glen = newglen
-        print "-------------------------------------"
-        print
-    if refs:
-        newrc = sys.gettotalrefcount()
-        global rc
-        if newrc > rc:
-            refs.update()
-            refs.detailed_refcounts(newrc, rc)
-        rc = newrc
-"""
-
-import sys
-import gc
-
-class TrackRefs(object):
-    """Object to track reference counts across test runs."""
-
-    def __init__(self):
-        self.type2count = {}
-        self.type2all = {}
-        self.delta = None
-        self.n = 0
-        self.update()
-        self.delta = None
-
-    def update(self):
-        gc.collect()
-        obs = sys.getobjects(0)
-        type2count = {}
-        type2all = {}
-        n = 0
-        for o in obs:
-            if type(o) is str and o == '<dummy key>':
-                # avoid dictionary madness
-                continue
-
-            all = sys.getrefcount(o) - 3
-            n += all
-
-            typ = type(o)
-            try:
-                typ = o.__class__
-            except Exception:
-                pass
-
-            if typ in type2count:
-                type2count[typ] += 1
-                type2all[typ] += all
-            else:
-                type2count[typ] = 1
-                type2all[typ] = all
-
-        ct = [(
-               type_or_class_title(t),
-               type2count[t] - self.type2count.get(t, 0),
-               type2all[t] - self.type2all.get(t, 0),
-               )
-              for t in type2count.keys()]
-        ct += [(
-                type_or_class_title(t),
-                - self.type2count[t],
-                - self.type2all[t],
-                )
-               for t in self.type2count.keys()
-               if t not in type2count]
-        ct.sort()
-        self.delta = ct
-        self.type2count = type2count
-        self.type2all = type2all
-        self.n = n
-
-
-    def output(self):
-        printed = False
-        s1 = s2 = 0
-        for t, delta1, delta2 in self.delta:
-            if delta1 or delta2:
-                if not printed:
-                    print (
-                        '    Leak details, changes in instances and refcounts'
-                        ' by type/class:')
-                    print("    %-55s %6s %6s" % ('type/class', 'insts', 'refs'))
-                    print("    %-55s %6s %6s" % ('-' * 55, '-----', '----'))
-                    printed = True
-                print("    %-55s %6d %6d" % (t, delta1, delta2))
-                s1 += delta1
-                s2 += delta2
-
-        if printed:
-            print("    %-55s %6s %6s" % ('-' * 55, '-----', '----'))
-            print("    %-55s %6s %6s" % ('total', s1, s2))
-
-        self.delta = None
-
-    def detailed_refcounts(self, rc, prev):
-        """Report a change in reference counts, with extra detail."""
-        print ("  sum detail refcount=%-8d"
-               " sys refcount=%-8d"
-               " change=%-6d"
-               % (self.n, rc, rc - prev))
-        self.output()
-
-def type_or_class_title(t):
-    module = getattr(t, '__module__', '__builtin__')
-    if module == '__builtin__':
-        return t.__name__
-    return "%s.%s" % (module, t.__name__)
-