contrib/svn_watcher.py

   1 #!/usr/bin/python
   2
   3 # This is a program which will poll a (remote) SVN repository, looking for
   4 # new revisions. It then uses the 'buildbot sendchange' command to deliver
   5 # information about the Change to a (remote) buildmaster. It can be run from
   6 # a cron job on a periodic basis, or can be told (with the 'watch' option) to
   7 # automatically repeat its check every 10 minutes.
   8
   9 # This script does not store any state information, so to avoid spurious
  10 # changes you must use the 'watch' option and let it run forever.
  11
  12 # You will need to provide it with the location of the buildmaster's
  13 # PBChangeSource port (in the form hostname:portnum), and the svnurl of the
  14 # repository to watch.
  15
  16
  17 # 15.03.06 by John Pye
  18 # 29.03.06 by Niklaus Giger, added support to run under windows, added invocation option
  19 import commands
  20 import xml.dom.minidom
  21 import sys
  22 import time
  23 import os
  24 if sys.platform == 'win32':
  25     import win32pipe
  26
  27 def checkChanges(repo, master, verbose=False, oldRevision=-1):
  28     cmd ="svn log --non-interactive --xml --verbose --limit=1 "+repo
  29     if verbose == True:
  30         print "Getting last revision of repository: " + repo
  31
  32     if sys.platform == 'win32':
  33         f = win32pipe.popen(cmd)
  34         xml1 = ''.join(f.readlines())
  35         f.close()
  36     else:
  37         xml1 = commands.getoutput(cmd)
  38
  39     if verbose == True:
  40         print "XML\n-----------\n"+xml1+"\n\n"
  41
  42     doc = xml.dom.minidom.parseString(xml1)
  43     el = doc.getElementsByTagName("logentry")[0]
  44     revision = el.getAttribute("revision")
  45     author = "".join([t.data for t in
  46     el.getElementsByTagName("author")[0].childNodes])
  47     comments = "".join([t.data for t in
  48     el.getElementsByTagName("msg")[0].childNodes])
  49
  50     pathlist = el.getElementsByTagName("paths")[0]
  51     paths = []
  52     for p in pathlist.getElementsByTagName("path"):
  53             paths.append("".join([t.data for t in p.childNodes]))
  54
  55     if verbose == True:
  56         print "PATHS"
  57         print paths
  58
  59     if  revision != oldRevision:
  60         cmd = "buildbot sendchange --master="+master+" --revision=\""+revision+"\" --username=\""+author+"\"--comments=\""+comments+"\" "+" ".join(paths)
  61
  62         if verbose == True:
  63             print cmd
  64
  65         if sys.platform == 'win32':
  66             f = win32pipe.popen(cmd)
  67             print time.strftime("%H.%M.%S ") + "Revision "+revision+ ": "+ ''.join(f.readlines())
  68             f.close()
  69         else:
  70             xml1 = commands.getoutput(cmd)
  71     else:
  72         print time.strftime("%H.%M.%S ") + "nothing has changed since revision "+revision
  73
  74     return revision
  75
  76 if __name__ == '__main__':
  77     if len(sys.argv) == 4 and sys.argv[3] == 'watch':
  78         oldRevision = -1
  79         print "Watching for changes in repo "+  sys.argv[1] + " master " +  sys.argv[2]
  80         while 1:
  81             oldRevision = checkChanges(sys.argv[1],  sys.argv[2], False, oldRevision)
  82             time.sleep(10*60) # Check the repository every 10 minutes
  83
  84     elif len(sys.argv) == 3:
  85         checkChanges(sys.argv[1],  sys.argv[2], True )
  86     else:
  87         print os.path.basename(sys.argv[0]) + ":  http://host/path/to/repo master:port [watch]"
  88