cap jenkins retention policies and identify those without policies at all

gistfile1.py

from glob import glob
import xml.etree.ElementTree as ET

# fix bad retention policies
maxkeep = 20
maxakeep = 20

nopolicy = []
for cfile in glob("jobs/*/config.xml"):
    tree = ET.parse(cfile)
    root = tree.getroot()
    lr = root.find('logRotator')
    if lr is None:
        nopolicy.append(cfile)
        continue
    numToKeep = lr.find('numToKeep')
    keep = int(numToKeep.text)
    aNumToKeep = lr.find('artifactNumToKeep')
    akeep = int(aNumToKeep.text)
    if keep == -1 or keep > maxkeep:
        print "changing  keep %3s to %3s: %s" % (keep, maxkeep, cfile)
        lr.find('numToKeep').text = str(maxkeep)
    if akeep == -1 or akeep > maxakeep:
        print "changing akeep %3s to %3s: %s" % (akeep, maxakeep, cfile)
        lr.find('artifactNumToKeep').text = str(maxakeep)
    tree.write(cfile)

for item in nopolicy:
    print "no policy: %s" % item