add find_stack_traces tool
this is useful to go and collect all the stack traces found for a
particular test run. Helps us easily identify when stack traces
are being generated even on good runs.
Change-Id: Ia5b95be7bc1a425630fba06c7c65cbaa9fa7079f
diff --git a/tools/find_stack_traces.py b/tools/find_stack_traces.py
new file mode 100755
index 0000000..e6c1990
--- /dev/null
+++ b/tools/find_stack_traces.py
@@ -0,0 +1,83 @@
+#!/usr/bin/env python
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2013 IBM Corp.
+# All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+import gzip
+import re
+import StringIO
+import sys
+import urllib2
+
+
+def hunt_for_stacktrace(url):
+ """Return TRACE or ERROR lines out of logs."""
+ page = urllib2.urlopen(url)
+ buf = StringIO.StringIO(page.read())
+ f = gzip.GzipFile(fileobj=buf)
+ content = f.read()
+ traces = re.findall('^(.*? (TRACE|ERROR) .*?)$', content, re.MULTILINE)
+ tracelist = map(lambda x: x[0], traces)
+ # filter out log definitions as false possitives
+ return filter(lambda x: not re.search('logging_exception_prefix', x),
+ tracelist)
+
+
+def log_url(url, log):
+ return "%s/%s" % (url, log)
+
+
+def collect_logs(url):
+ page = urllib2.urlopen(url)
+ content = page.read()
+ logs = re.findall('(screen-[\w-]+\.txt\.gz)</a>', content)
+ return logs
+
+
+def usage():
+ print """
+Usage: find_stack_traces.py <logurl>
+
+Hunts for stack traces in a devstack run. Must provide it a base log url
+from a tempest devstack run. Should start with http and end with /logs/.
+
+Returns a report listing stack traces out of the various files where
+they are found.
+"""
+ sys.exit(0)
+
+
+def main():
+ if len(sys.argv) == 2:
+ url = sys.argv[1]
+ loglist = collect_logs(url)
+
+ # probably wrong base url
+ if not loglist:
+ usage()
+
+ for log in loglist:
+ logurl = log_url(url, log)
+ traces = hunt_for_stacktrace(logurl)
+ if traces:
+ print "\n\nTRACES found in %s\n" % log
+ for line in traces:
+ print line
+ else:
+ usage()
+
+if __name__ == '__main__':
+ main()