How to access XML version of CruiseContol.NET Web Dashboard reports (over HTTP)?
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04-07-2019 - |
Question
I need to determine state of last build (success/failure) and I do it like this:
report_url = 'http://.../ViewLatestBuildReport.aspx'
success_marker = '<td class="header-title" colspan="2">BUILD SUCCESSFUL</td>'
page = urllib.urlopen(report_url)
if all(success_marker not in line for line in page):
# build is not good, do something
...
But this is wasteful (loads entire HTML page), error-prone (I already ran into a bytes/unicode bug) and fragile.
Solution
OK, I sort of figured it out. CCTray tracks build status by polling XmlServerReport.aspx
, which is (surprise!) XML.
So my current solution looks like this:
import sys, urllib, xml.sax, xml.sax.handler
report_url = 'http://.../CCNET/XmlServerReport.aspx'
class FoundBuildStatus(Exception):
def __init__(self, status):
self.build_status = status
class Handler(xml.sax.handler.ContentHandler):
def startElement(self, name, attrs):
if name == 'Project' and attrs.get('name') == '...':
status = attrs.get('lastBuildStatus')
if status:
raise FoundBuildStatus(status)
page = urllib.urlopen(report_url)
try:
xml.sax.parse(page, Handler())
except FoundBuildStatus, ex:
if ex.build_status == 'Failure':
# build is not good, do something
...
In my environment it is about 8 times faster than initial HTML-based solution.
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