Add a script which lists SVN log entries only for changesets

which have files which have been Added or Removed.

This can help identify changesets which should be
mentioned in Release Engineering's release notes.

release/scripts/list-new-changesets.py

@@ -0,0 +1,117 @@
+#!/usr/bin/env python
+#
+# Copyright (c) 2014, Craig Rodrigues <rodrigc@FreeBSD.org>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice unmodified, this list of conditions, and the following
+#    disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# $FreeBSD$
+
+# Display SVN log entries for changesets which have files which were
+# Added or Deleted.
+# This script takes arguments which would normally be
+# passed to the "svn log" command.
+#
+# Examples:
+#
+#  (1) Display all new changesets in stable/10 branch:  
+#
+#        list-new-changesets.py --stop-on-copy \
+#                        svn://svn.freebsd.org/base/stable/10 
+#
+#  (2) Display all new changesets between r254153 and r261794 in
+#      stable/9 branch:
+#
+#        list-new-changesets.py  -r254153:261794 \
+#                        svn://svn.freebsd.org/base/stable/9
+
+import os
+import subprocess
+import sys
+import xml.etree.ElementTree
+
+def print_logentry(logentry):
+    """Print an SVN log entry.
+ 
+    Take an SVN log entry formatted in XML, and print it out in
+    plain text.
+    """
+    rev = logentry.attrib['revision']
+    author = logentry.find('author').text
+    date = logentry.find('date').text
+    msg = logentry.find('msg').text
+
+    print "-" * 71
+    print "%s | %s | %s" % (rev, author, date)
+    print "Changed paths:"
+    for paths in logentry.findall('paths'):
+        for path in paths.findall('path'):
+            print "   %s %s" % (path.attrib['action'], path.text)
+
+    print
+    print msg.encode('utf-8')
+
+def main(args):
+    """Main function.
+
+    Take command-line arguments which would be passed to 'svn log'.
+    Prepend '-v --xml' to get verbose XML formatted output.
+    Only display entries which have Added or Deleted files.
+    """
+    cmd = ["svn", "log", "-v", "--xml"]
+    cmd += args[1:] 
+
+    print " ".join(cmd)
+
+    proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    (out, err) = proc.communicate()
+
+    if proc.returncode != 0:
+        print err
+        sys.exit(proc.returncode) 
+
+    displayed_entries = 0
+    root = xml.etree.ElementTree.fromstring(out)
+
+    for logentry in root.findall('logentry'):
+       show_logentry = False
+    
+       for paths in logentry.findall('paths'):
+           for path in paths.findall('path'):
+               if path.attrib['action'] == 'A':
+                  show_logentry = True
+               elif path.attrib['action'] == 'D':
+                  show_logentry = True
+           
+       if show_logentry == True :
+           print_logentry(logentry)
+           displayed_entries += 1
+
+    if displayed_entries == 0:
+        print "No changesets with Added or Deleted files"
+
+    if displayed_entries > 0:    
+        print "-" * 71
+
+
+if __name__ == "__main__":
+    main(sys.argv)