Re: Last Build Status

Thanks for sharing Paul.

I have had to do similar things, but with perl.

My team is wanting to use python more, and so
I am happy to have another snippet to ponder.

Take care,

Chris

From: Paul Willworth [mailto:[email protected]]
Sent: Thursday, September 22, 2011 9:43 AM
To: [email protected]
Subject: Re: [Cruisecontrol-user] Last Build Status

I wrote this python script to calculate the time to fix the build.  Thought I'd share incase anyone else can use it.

#!/usr/bin/python
# This script is meant to be used with the Cruise Control RSS feed for a project.
# If the build label given is a successful build and has at least 1 failed build
# immediately prior to it, the script returns the number of minutes since the
# build last became broken to the time of this successful build.

import sys
from optparse import OptionParser
from xml.dom import minidom
import urllib
from datetime import timedelta, datetime


parser = OptionParser("usage: %prog projectName buildLabel")
(options, args) = parser.parse_args()

projectName = args[0]
buildLabel = args[1]
cruiseFeedTemplate = "http://buildserver:8080/cruisecontrol/rss/{0}"

# utility function for getting text out of xml element child nodes
def getText(nodelist):
            rc = []
            for node in nodelist:
                        if node.nodeType == node.TEXT_NODE:
                                    rc.append(node.data)
            return ''.join(rc)

# parse xml dom for build times
def getTimeToFix(builds):
            buildStatus = ""
            buildTime = ""
            failTime = ""

            items = builds.getElementsByTagName("item")

            for item in items:
                        # get the important bits of info from this build attempt
                        title = getText(item.getElementsByTagName("title")[0].childNodes)
                        itemTime = title[:title.find(",")].strip()
                        itemStatus = title[title.find(",")+1:].strip()
                        link = getText(item.getElementsByTagName("link")[0].childNodes)
                        itemLabel = link[link.find("?")+23:]

                        # See if this is the build we are looking for
                        if itemLabel == buildLabel and buildStatus == "":
                                    buildStatus = itemStatus
                                    # bail if build is failed
                                    if itemStatus != 'passed':
                                                break
                                    else:
                                                buildTime = itemTime
                                                continue

                        # look for prior build info after this build found
                        if buildStatus == 'passed':
                                    if itemStatus != 'passed':
                                                failTime = itemTime
                                    else:
                                                break

            # debugging
            print "buildStatus: {0} buildTime: {1} failTime: {2}".format(buildStatus, buildTime, failTime)

            # Return the minutes to fix or 0 if not a fixing build
            if buildTime != "" and failTime != "":
                        timeToFix = datetime.strptime(buildTime, "%a %b %d %H:%M:%S %Z %Y") - datetime.strptime(failTime, "%a %b %d %H:%M:%S %Z %Y")
                        return (timeToFix.seconds/60)+1
            else:
                        return 0


# Get the project RSS feed
domp = None
try:
            f = urllib.urlopen(cruiseFeedTemplate.format(projectName))
            domp = minidom.parse(f)
except Exception as e:
            print "Failed to get feed:", e

# Get and print the time to fix this build or zero if build was not broken
if domp != None:
            print "Minutes to fix: {0}\n".format(getTimeToFix(domp))

-Paul
________________________________
From: Julian Simpson [mailto:[email protected]]
Sent: Wednesday, September 14, 2011 1:22 PM
To: [email protected]
Subject: Re: [Cruisecontrol-user] Last Build Status

I'd probably write a script to work on the XML feed.

J.

On Wednesday, 14 September 2011, Paul Willworth wrote:
I am trying to figure out a way to measure time taken to fix a broken build.  I'm thinking I would need a way to check the status of the last build, and trigger a calculation of the time if the current build is successful.  As far as I can tell though, there are only handy properties available to tell you when the last successful build was, not what the last build was.  Has anyone found a good way to calculate this metric?

Paul Willworth


--
Julian Simpson
The Build Doctor Ltd.
http://www.build-doctor.com
[email protected]<mailto:[email protected]>
(+44) 207 183 0323

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