Source Code for Module buildbot.scripts.reconfig

 1  # This file is part of Buildbot.  Buildbot is free software: you can 
 2  # redistribute it and/or modify it under the terms of the GNU General Public 
 3  # License as published by the Free Software Foundation, version 2. 
 4  # 
 5  # This program is distributed in the hope that it will be useful, but WITHOUT 
 6  # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 
 7  # FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more 
 8  # details. 
 9  # 
10  # You should have received a copy of the GNU General Public License along with 
11  # this program; if not, write to the Free Software Foundation, Inc., 51 
12  # Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 
13  # 
14  # Copyright Buildbot Team Members 
15   
16   
17  import os 
18  import signal 
19  import platform 
20  import sys 
21  from twisted.internet import reactor 
22   
23  from buildbot.scripts.logwatcher import LogWatcher, BuildmasterTimeoutError, \ 
24       ReconfigError 
25   
26 -class Reconfigurator: 
27   
28      rc = 0 
29   
30 -    def run(self, config): 
31          # Returns "Microsoft" for Vista and "Windows" for other versions 
32          if platform.system() in ("Windows", "Microsoft"): 
33              print "Reconfig (through SIGHUP) is not supported on Windows." 
34              print "The 'buildbot debugclient' tool can trigger a reconfig" 
35              print "remotely, but requires Gtk+ libraries to run." 
36              return 
37   
38          basedir = config['basedir'] 
39          quiet = config['quiet'] 
40          os.chdir(basedir) 
41          f = open("twistd.pid", "rt") 
42          self.pid = int(f.read().strip()) 
43          if quiet: 
44              os.kill(self.pid, signal.SIGHUP) 
45              return 
46   
47          # keep reading twistd.log. Display all messages between "loading 
48          # configuration from ..." and "configuration update complete" or 
49          # "I will keep using the previous config file instead.", or until 
50          # 10 seconds have elapsed. 
51   
52          self.sent_signal = False 
53          lw = LogWatcher("twistd.log") 
54          d = lw.start() 
55          d.addCallbacks(self.success, self.failure) 
56          reactor.callLater(0.2, self.sighup) 
57          reactor.run() 
58          sys.exit(self.rc) 
59   
60 -    def sighup(self): 
61          if self.sent_signal: 
62              return 
63          print "sending SIGHUP to process %d" % self.pid 
64          self.sent_signal = True 
65          os.kill(self.pid, signal.SIGHUP) 
66   
67 -    def success(self, res): 
68          print """ 
69  Reconfiguration appears to have completed successfully. 
70  """ 
71          reactor.stop() 
72   
73 -    def failure(self, why): 
74          self.rc = 1 
75          if why.check(BuildmasterTimeoutError): 
76              print "Never saw reconfiguration finish." 
77          elif why.check(ReconfigError): 
78              print """ 
79  Reconfiguration failed. Please inspect the master.cfg file for errors, 
80  correct them, then try 'buildbot reconfig' again. 
81  """ 
82          elif why.check(IOError): 
83              # we were probably unable to open the file in the first place 
84              self.sighup() 
85          else: 
86              print "Error while following twistd.log: %s" % why 
87          reactor.stop() 
88