--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/worker.tac	Fri Feb 08 15:47:45 2019 +0000
@@ -0,0 +1,45 @@
+
+import os
+
+from buildbot_worker.bot import Worker
+from twisted.application import service
+
+basedir = '.'
+rotateLength = 10000000
+maxRotatedFiles = 10
+
+# if this is a relocatable tac file, get the directory containing the TAC
+if basedir == '.':
+    import os.path
+    basedir = os.path.abspath(os.path.dirname(__file__))
+
+# note: this line is matched against to check that this is a buildbot worker
+# directory; do not edit it.
+application = service.Application('buildbot-worker')
+
+try:
+    from twisted.python.logfile import LogFile
+    from twisted.python.log import ILogObserver, FileLogObserver
+    logfile = LogFile.fromFullPath(os.path.join(basedir, "twistd.log"), rotateLength=rotateLength,
+                                   maxRotatedFiles=maxRotatedFiles)
+    application.setComponent(ILogObserver, FileLogObserver(logfile).emit)
+except ImportError:
+    # probably not yet twisted 8.2.0 and beyond, can't set log yet
+    pass
+
+buildmaster_host = 'buildbot.octave.org'
+port = 9990
+workername = 'your-worker-name'
+passwd = 'your-worker-password'
+keepalive = 600
+maxdelay = 300
+numcpus = None
+allow_shutdown = None
+maxretries = None
+
+s = Worker(buildmaster_host, port, workername, passwd, basedir,
+           keepalive, maxdelay=maxdelay,
+           numcpus=numcpus, allow_shutdown=allow_shutdown,
+           maxRetries=maxretries)
+s.setServiceParent(application)
+