script/autobuild.py

   1 #!/usr/bin/env python
   2 # run tests on all Samba subprojects and push to a git tree on success
   3 # Copyright Andrew Tridgell 2010
   4 # released under GNU GPL v3 or later
   5
   6 from subprocess import call, check_call,Popen, PIPE
   7 import os, tarfile, sys, time
   8 from optparse import OptionParser
   9 import smtplib
  10 from email.mime.text import MIMEText
  11 from distutils.sysconfig import get_python_lib
  12
  13 samba_master = os.getenv('SAMBA_MASTER', 'git://git.samba.org/samba.git')
  14 samba_master_ssh = os.getenv('SAMBA_MASTER_SSH', 'git+ssh://git.samba.org/data/git/samba.git')
  15
  16 cleanup_list = []
  17
  18 builddirs = {
  19     "samba3"  : "source3",
  20     "samba4"  : ".",
  21     "samba4-libs"  : ".",
  22     "ldb"     : "lib/ldb",
  23     "tdb"     : "lib/tdb",
  24     "tdb2"    : "lib/tdb2",
  25     "talloc"  : "lib/talloc",
  26     "replace" : "lib/replace",
  27     "tevent"  : "lib/tevent",
  28     "pidl"    : "pidl",
  29     "pass"    : ".",
  30     "fail"    : ".",
  31     "retry"   : "."
  32     }
  33
  34 defaulttasks = [ "samba3", "samba4", "samba4-libs", "ldb", "tdb", "tdb2", "talloc", "replace", "tevent", "pidl" ]
  35
  36 tasks = {
  37     "samba3" : [ ("autogen", "./autogen.sh", "text/plain"),
  38                  ("configure", "./configure.developer ${PREFIX}", "text/plain"),
  39                  ("make basics", "make basics", "text/plain"),
  40                  # we split 'make -j 4', 'make bin/smbtorture4' and 'make -j 4 everything'
  41                  # because it makes it much easier to find errors.
  42                  ("make", "make -j 4", "text/plain"), # don't use too many processes
  43                  ("make bin/smbtorture4", "make -j 4 bin/smbtorture4", "text/plain"),
  44                  ("make everything", "make -j 4 everything", "text/plain"),
  45                  ("install", "make install", "text/plain"),
  46                  ("test", "TDB_NO_FSYNC=1 make test FAIL_IMMEDIATELY=1", "text/plain"),
  47                  ("check-clean-tree", "../script/clean-source-tree.sh", "text/plain"),
  48                  ("clean", "make clean", "text/plain") ],
  49
  50     # We have 'test' before 'install' because, 'test' should work without 'install'
  51     "samba4" : [ ("configure", "./configure.developer ${PREFIX} --with-selftest-prefix=./bin/ab", "text/plain"),
  52                  ("make", "make -j", "text/plain"),
  53                  ("test", "TDB_NO_FSYNC=1 make test FAIL_IMMEDIATELY=1", "text/plain"),
  54                  ("install", "make install", "text/plain"),
  55                  ("check-clean-tree", "script/clean-source-tree.sh", "text/plain"),
  56                  ("clean", "make clean", "text/plain") ],
  57
  58     "samba4-libs" : [ ("talloc-configure", "cd lib/talloc && PYTHONPATH=${PYTHON_PREFIX}/site-packages:$PYTHONPATH PKG_CONFIG_PATH=$PKG_CONFIG_PATH:${PREFIX_DIR}/lib/pkgconfig ./configure --bundled-libraries=NONE --enable-debug -C ${PREFIX}", "text/plain"),
  59                       ("talloc-make", "cd lib/talloc && make -j", "text/plain"),
  60                       ("talloc-install", "cd lib/talloc && make install", "text/plain"),
  61
  62                       ("tdb-configure", "cd lib/tdb && PYTHONPATH=${PYTHON_PREFIX}/site-packages:$PYTHONPATH PKG_CONFIG_PATH=$PKG_CONFIG_PATH:${PREFIX_DIR}/lib/pkgconfig ./configure --bundled-libraries=NONE --enable-debug -C ${PREFIX}", "text/plain"),
  63                       ("tdb-make", "cd lib/tdb && make -j", "text/plain"),
  64                       ("tdb-install", "cd lib/tdb && make install", "text/plain"),
  65
  66                       ("tevent-configure", "cd lib/tevent && PYTHONPATH=${PYTHON_PREFIX}/site-packages:$PYTHONPATH PKG_CONFIG_PATH=$PKG_CONFIG_PATH:${PREFIX_DIR}/lib/pkgconfig ./configure --bundled-libraries=NONE --enable-debug -C ${PREFIX}", "text/plain"),
  67                       ("tevent-make", "cd lib/tevent && make -j", "text/plain"),
  68                       ("tevent-install", "cd lib/tevent && make install", "text/plain"),
  69
  70                       ("ldb-configure", "cd lib/ldb && PYTHONPATH=${PYTHON_PREFIX}/site-packages:$PYTHONPATH PKG_CONFIG_PATH=$PKG_CONFIG_PATH:${PREFIX_DIR}/lib/pkgconfig ./configure --bundled-libraries=NONE --disable-tdb2 --enable-debug -C ${PREFIX}", "text/plain"),
  71                       ("ldb-make", "cd lib/ldb && make -j", "text/plain"),
  72                       ("ldb-install", "cd lib/ldb && make install", "text/plain"),
  73
  74                       ("configure", "PYTHONPATH=${PYTHON_PREFIX}/site-packages:$PYTHONPATH PKG_CONFIG_PATH=$PKG_CONFIG_PATH:${PREFIX_DIR}/lib/pkgconfig ./configure --bundled-libraries=!talloc,!tdb,!pytdb,!ldb,!pyldb,!tevent,!pytevent --disable-tdb2 --enable-debug -C ${PREFIX}", "text/plain"),
  75                       ("make", "make -j", "text/plain"),
  76                       ("install", "make install", "text/plain")],
  77
  78     "ldb" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  79               ("make", "make -j", "text/plain"),
  80               ("install", "make install", "text/plain"),
  81               ("test", "TDB_NO_FSYNC=1 make test", "text/plain"),
  82               ("check-clean-tree", "../../script/clean-source-tree.sh", "text/plain"),
  83               ("distcheck", "make distcheck", "text/plain"),
  84               ("clean", "make clean", "text/plain") ],
  85
  86     # We don't use TDB_NO_FSYNC=1 here, because we want to test the transaction code
  87     "tdb" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  88               ("make", "make -j", "text/plain"),
  89               ("install", "make install", "text/plain"),
  90               ("test", "make test", "text/plain"),
  91               ("check-clean-tree", "../../script/clean-source-tree.sh", "text/plain"),
  92               ("distcheck", "make distcheck", "text/plain"),
  93               ("clean", "make clean", "text/plain") ],
  94
  95     "tdb2" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  96                ("make", "make -j", "text/plain"),
  97                ("install", "make install", "text/plain"),
  98                ("test", "make test", "text/plain"),
  99                ("check-clean-tree", "../../script/clean-source-tree.sh", "text/plain"),
 100                ("distcheck", "make distcheck", "text/plain"),
 101                ("clean", "make clean", "text/plain") ],
 102
 103     "talloc" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
 104                  ("make", "make -j", "text/plain"),
 105                  ("install", "make install", "text/plain"),
 106                  ("test", "make test", "text/plain"),
 107                  ("check-clean-tree", "../../script/clean-source-tree.sh", "text/plain"),
 108                  ("distcheck", "make distcheck", "text/plain"),
 109                  ("clean", "make clean", "text/plain") ],
 110
 111     "replace" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
 112                   ("make", "make -j", "text/plain"),
 113                   ("install", "make install", "text/plain"),
 114                   ("test", "make test", "text/plain"),
 115                   ("check-clean-tree", "../../script/clean-source-tree.sh", "text/plain"),
 116                   ("distcheck", "make distcheck", "text/plain"),
 117                   ("clean", "make clean", "text/plain") ],
 118
 119     "tevent" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
 120                  ("make", "make -j", "text/plain"),
 121                  ("install", "make install", "text/plain"),
 122                  ("test", "make test", "text/plain"),
 123                  ("check-clean-tree", "../../script/clean-source-tree.sh", "text/plain"),
 124                  ("distcheck", "make distcheck", "text/plain"),
 125                  ("clean", "make clean", "text/plain") ],
 126
 127     "pidl" : [ ("configure", "perl Makefile.PL PREFIX=${PREFIX_DIR}", "text/plain"),
 128                ("touch", "touch *.yp", "text/plain"),
 129                ("make", "make", "text/plain"),
 130                ("test", "make test", "text/plain"),
 131                ("install", "make install", "text/plain"),
 132                ("check-clean-tree", "../script/clean-source-tree.sh", "text/plain"),
 133                ("clean", "make clean", "text/plain") ],
 134
 135     # these are useful for debugging autobuild
 136     'pass' : [ ("pass", 'echo passing && /bin/true', "text/plain") ],
 137     'fail' : [ ("fail", 'echo failing && /bin/false', "text/plain") ]
 138 }
 139
 140 retry_task = [ ( "retry",
 141                  '''set -e
 142                 git remote add -t master master %s
 143                 git fetch master
 144                 while :; do
 145                   sleep 60
 146                   git describe master/master > old_master.desc
 147                   git fetch master
 148                   git describe master/master > master.desc
 149                   diff old_master.desc master.desc
 150                 done
 151                ''' % samba_master, "test/plain" ) ]
 152
 153 def run_cmd(cmd, dir=".", show=None, output=False, checkfail=True):
 154     if show is None:
 155         show = options.verbose
 156     if show:
 157         print("Running: '%s' in '%s'" % (cmd, dir))
 158     if output:
 159         return Popen([cmd], shell=True, stdout=PIPE, cwd=dir).communicate()[0]
 160     elif checkfail:
 161         return check_call(cmd, shell=True, cwd=dir)
 162     else:
 163         return call(cmd, shell=True, cwd=dir)
 164
 165
 166 class builder(object):
 167     '''handle build of one directory'''
 168
 169     def __init__(self, name, sequence):
 170         self.name = name
 171         self.dir = builddirs[name]
 172
 173         self.tag = self.name.replace('/', '_')
 174         self.sequence = sequence
 175         self.next = 0
 176         self.stdout_path = "%s/%s.stdout" % (gitroot, self.tag)
 177         self.stderr_path = "%s/%s.stderr" % (gitroot, self.tag)
 178         if options.verbose:
 179             print("stdout for %s in %s" % (self.name, self.stdout_path))
 180             print("stderr for %s in %s" % (self.name, self.stderr_path))
 181         run_cmd("rm -f %s %s" % (self.stdout_path, self.stderr_path))
 182         self.stdout = open(self.stdout_path, 'w')
 183         self.stderr = open(self.stderr_path, 'w')
 184         self.stdin  = open("/dev/null", 'r')
 185         self.sdir = "%s/%s" % (testbase, self.tag)
 186         self.prefix = "%s/prefix/%s" % (testbase, self.tag)
 187         run_cmd("rm -rf %s" % self.sdir)
 188         cleanup_list.append(self.sdir)
 189         cleanup_list.append(self.prefix)
 190         os.makedirs(self.sdir)
 191         run_cmd("rm -rf %s" % self.sdir)
 192         run_cmd("git clone --shared %s %s" % (test_master, self.sdir), dir=test_master, show=True)
 193         self.start_next()
 194
 195     def start_next(self):
 196         if self.next == len(self.sequence):
 197             print '%s: Completed OK' % self.name
 198             self.done = True
 199             return
 200         (self.stage, self.cmd, self.output_mime_type) = self.sequence[self.next]
 201         self.cmd = self.cmd.replace("${PYTHON_PREFIX}", get_python_lib(standard_lib=1, prefix=self.prefix))
 202         self.cmd = self.cmd.replace("${PREFIX}", "--prefix=%s" % self.prefix)
 203         self.cmd = self.cmd.replace("${PREFIX_DIR}", "%s" % self.prefix)
 204 #        if self.output_mime_type == "text/x-subunit":
 205 #            self.cmd += " | %s --immediate" % (os.path.join(os.path.dirname(__file__), "selftest/format-subunit"))
 206         print '%s: [%s] Running %s' % (self.name, self.stage, self.cmd)
 207         cwd = os.getcwd()
 208         os.chdir("%s/%s" % (self.sdir, self.dir))
 209         self.proc = Popen(self.cmd, shell=True,
 210                           stdout=self.stdout, stderr=self.stderr, stdin=self.stdin)
 211         os.chdir(cwd)
 212         self.next += 1
 213
 214
 215 class buildlist(object):
 216     '''handle build of multiple directories'''
 217
 218     def __init__(self, tasklist, tasknames):
 219         global tasks
 220         self.tlist = []
 221         self.tail_proc = None
 222         self.retry = None
 223         if tasknames == []:
 224             tasknames = defaulttasks
 225         for n in tasknames:
 226             b = builder(n, tasks[n])
 227             self.tlist.append(b)
 228         if options.retry:
 229             self.retry = builder('retry', retry_task)
 230             self.need_retry = False
 231
 232     def kill_kids(self):
 233         if self.tail_proc is not None:
 234             self.tail_proc.terminate()
 235             self.tail_proc.wait()
 236             self.tail_proc = None
 237         if self.retry is not None:
 238             self.retry.proc.terminate()
 239             self.retry.proc.wait()
 240             self.retry = None
 241         for b in self.tlist:
 242             if b.proc is not None:
 243                 run_cmd("killbysubdir %s > /dev/null 2>&1" % b.sdir, checkfail=False)
 244                 b.proc.terminate()
 245                 b.proc.wait()
 246                 b.proc = None
 247
 248     def wait_one(self):
 249         while True:
 250             none_running = True
 251             for b in self.tlist:
 252                 if b.proc is None:
 253                     continue
 254                 none_running = False
 255                 b.status = b.proc.poll()
 256                 if b.status is None:
 257                     continue
 258                 b.proc = None
 259                 return b
 260             if options.retry:
 261                 ret = self.retry.proc.poll()
 262                 if ret is not None:
 263                     self.need_retry = True
 264                     self.retry = None
 265                     return None
 266             if none_running:
 267                 return None
 268             time.sleep(0.1)
 269
 270     def run(self):
 271         while True:
 272             b = self.wait_one()
 273             if options.retry and self.need_retry:
 274                 self.kill_kids()
 275                 print("retry needed")
 276                 return (0, None, None, None, "retry")
 277             if b is None:
 278                 break
 279             if os.WIFSIGNALED(b.status) or os.WEXITSTATUS(b.status) != 0:
 280                 self.kill_kids()
 281                 return (b.status, b.name, b.stage, b.tag, "%s: [%s] failed '%s' with status %d" % (b.name, b.stage, b.cmd, b.status))
 282             b.start_next()
 283         self.kill_kids()
 284         return (0, None, None, None, "All OK")
 285
 286     def tarlogs(self, fname):
 287         tar = tarfile.open(fname, "w:gz")
 288         for b in self.tlist:
 289             tar.add(b.stdout_path, arcname="%s.stdout" % b.tag)
 290             tar.add(b.stderr_path, arcname="%s.stderr" % b.tag)
 291         if os.path.exists("autobuild.log"):
 292             tar.add("autobuild.log")
 293         tar.close()
 294
 295     def remove_logs(self):
 296         for b in self.tlist:
 297             os.unlink(b.stdout_path)
 298             os.unlink(b.stderr_path)
 299
 300     def start_tail(self):
 301         cwd = os.getcwd()
 302         cmd = "tail -f *.stdout *.stderr"
 303         os.chdir(gitroot)
 304         self.tail_proc = Popen(cmd, shell=True)
 305         os.chdir(cwd)
 306
 307
 308 def cleanup():
 309     if options.nocleanup:
 310         return
 311     print("Cleaning up ....")
 312     for d in cleanup_list:
 313         run_cmd("rm -rf %s" % d)
 314
 315
 316 def find_git_root():
 317     '''get to the top of the git repo'''
 318     p=os.getcwd()
 319     while p != '/':
 320         if os.path.isdir(os.path.join(p, ".git")):
 321             return p
 322         p = os.path.abspath(os.path.join(p, '..'))
 323     return None
 324
 325
 326 def daemonize(logfile):
 327     pid = os.fork()
 328     if pid == 0: # Parent
 329         os.setsid()
 330         pid = os.fork()
 331         if pid != 0: # Actual daemon
 332             os._exit(0)
 333     else: # Grandparent
 334         os._exit(0)
 335
 336     import resource      # Resource usage information.
 337     maxfd = resource.getrlimit(resource.RLIMIT_NOFILE)[1]
 338     if maxfd == resource.RLIM_INFINITY:
 339         maxfd = 1024 # Rough guess at maximum number of open file descriptors.
 340     for fd in range(0, maxfd):
 341         try:
 342             os.close(fd)
 343         except OSError:
 344             pass
 345     os.open(logfile, os.O_RDWR | os.O_CREAT)
 346     os.dup2(0, 1)
 347     os.dup2(0, 2)
 348
 349 def write_pidfile(fname):
 350     '''write a pid file, cleanup on exit'''
 351     f = open(fname, mode='w')
 352     f.write("%u\n" % os.getpid())
 353     f.close()
 354
 355
 356 def rebase_tree(url):
 357     print("Rebasing on %s" % url)
 358     run_cmd("git describe HEAD", show=True, dir=test_master)
 359     run_cmd("git remote add -t master master %s" % url, show=True, dir=test_master)
 360     run_cmd("git fetch master", show=True, dir=test_master)
 361     if options.fix_whitespace:
 362         run_cmd("git rebase --whitespace=fix master/master", show=True, dir=test_master)
 363     else:
 364         run_cmd("git rebase master/master", show=True, dir=test_master)
 365     diff = run_cmd("git --no-pager diff HEAD master/master", dir=test_master, output=True)
 366     if diff == '':
 367         print("No differences between HEAD and master/master - exiting")
 368         sys.exit(0)
 369     run_cmd("git describe master/master", show=True, dir=test_master)
 370     run_cmd("git describe HEAD", show=True, dir=test_master)
 371     run_cmd("git --no-pager diff --stat HEAD master/master", show=True, dir=test_master)
 372
 373 def push_to(url):
 374     print("Pushing to %s" % url)
 375     if options.mark:
 376         run_cmd("git config --replace-all core.editor script/commit_mark.sh", dir=test_master)
 377         run_cmd("git commit --amend -c HEAD", dir=test_master)
 378         # the notes method doesn't work yet, as metze hasn't allowed refs/notes/* in master
 379         # run_cmd("EDITOR=script/commit_mark.sh git notes edit HEAD", dir=test_master)
 380     run_cmd("git remote add -t master pushto %s" % url, show=True, dir=test_master)
 381     run_cmd("git push pushto +HEAD:master", show=True, dir=test_master)
 382
 383 def_testbase = os.getenv("AUTOBUILD_TESTBASE", "/memdisk/%s" % os.getenv('USER'))
 384
 385 parser = OptionParser()
 386 parser.add_option("", "--tail", help="show output while running", default=False, action="store_true")
 387 parser.add_option("", "--keeplogs", help="keep logs", default=False, action="store_true")
 388 parser.add_option("", "--nocleanup", help="don't remove test tree", default=False, action="store_true")
 389 parser.add_option("", "--testbase", help="base directory to run tests in (default %s)" % def_testbase,
 390                   default=def_testbase)
 391 parser.add_option("", "--passcmd", help="command to run on success", default=None)
 392 parser.add_option("", "--verbose", help="show all commands as they are run",
 393                   default=False, action="store_true")
 394 parser.add_option("", "--rebase", help="rebase on the given tree before testing",
 395                   default=None, type='str')
 396 parser.add_option("", "--rebase-master", help="rebase on %s before testing" % samba_master,
 397                   default=False, action='store_true')
 398 parser.add_option("", "--pushto", help="push to a git url on success",
 399                   default=None, type='str')
 400 parser.add_option("", "--push-master", help="push to %s on success" % samba_master_ssh,
 401                   default=False, action='store_true')
 402 parser.add_option("", "--mark", help="add a Tested-By signoff before pushing",
 403                   default=False, action="store_true")
 404 parser.add_option("", "--fix-whitespace", help="fix whitespace on rebase",
 405                   default=False, action="store_true")
 406 parser.add_option("", "--retry", help="automatically retry if master changes",
 407                   default=False, action="store_true")
 408 parser.add_option("", "--email", help="send email to the given address on failure",
 409                   type='str', default=None)
 410 parser.add_option("", "--always-email", help="always send email, even on success",
 411                   action="store_true")
 412 parser.add_option("", "--daemon", help="daemonize after initial setup",
 413                   action="store_true")
 414
 415
 416 def email_failure(status, failed_task, failed_stage, failed_tag, errstr):
 417     '''send an email to options.email about the failure'''
 418     user = os.getenv("USER")
 419     text = '''
 420 Dear Developer,
 421
 422 Your autobuild failed when trying to test %s with the following error:
 423    %s
 424
 425 the autobuild has been abandoned. Please fix the error and resubmit.
 426
 427 A summary of the autobuild process is here:
 428
 429   http://git.samba.org/%s/samba-autobuild/autobuild.log
 430 ''' % (failed_task, errstr, user)
 431
 432     if failed_task != 'rebase':
 433         text += '''
 434 You can see logs of the failed task here:
 435
 436   http://git.samba.org/%s/samba-autobuild/%s.stdout
 437   http://git.samba.org/%s/samba-autobuild/%s.stderr
 438
 439 or you can get full logs of all tasks in this job here:
 440
 441   http://git.samba.org/%s/samba-autobuild/logs.tar.gz
 442
 443 The top commit for the tree that was built was:
 444
 445 %s
 446
 447 ''' % (user, failed_tag, user, failed_tag, user, top_commit_msg)
 448     msg = MIMEText(text)
 449     msg['Subject'] = 'autobuild failure for task %s during %s' % (failed_task, failed_stage)
 450     msg['From'] = 'autobuild@samba.org'
 451     msg['To'] = options.email
 452
 453     s = smtplib.SMTP()
 454     s.connect()
 455     s.sendmail(msg['From'], [msg['To']], msg.as_string())
 456     s.quit()
 457
 458 def email_success():
 459     '''send an email to options.email about a successful build'''
 460     user = os.getenv("USER")
 461     text = '''
 462 Dear Developer,
 463
 464 Your autobuild has succeeded.
 465
 466 '''
 467
 468     if options.keeplogs:
 469         text += '''
 470
 471 you can get full logs of all tasks in this job here:
 472
 473   http://git.samba.org/%s/samba-autobuild/logs.tar.gz
 474
 475 ''' % user
 476
 477     text += '''
 478 The top commit for the tree that was built was:
 479
 480 %s
 481 ''' % top_commit_msg
 482
 483     msg = MIMEText(text)
 484     msg['Subject'] = 'autobuild success'
 485     msg['From'] = 'autobuild@samba.org'
 486     msg['To'] = options.email
 487
 488     s = smtplib.SMTP()
 489     s.connect()
 490     s.sendmail(msg['From'], [msg['To']], msg.as_string())
 491     s.quit()
 492
 493
 494 (options, args) = parser.parse_args()
 495
 496 if options.retry:
 497     if not options.rebase_master and options.rebase is None:
 498         raise Exception('You can only use --retry if you also rebase')
 499
 500 testbase = "%s/b%u" % (options.testbase, os.getpid())
 501 test_master = "%s/master" % testbase
 502
 503 gitroot = find_git_root()
 504 if gitroot is None:
 505     raise Exception("Failed to find git root")
 506
 507 # get the top commit message, for emails
 508 top_commit_msg = run_cmd("git log -1", dir=gitroot, output=True)
 509
 510 try:
 511     os.makedirs(testbase)
 512 except Exception, reason:
 513     raise Exception("Unable to create %s : %s" % (testbase, reason))
 514 cleanup_list.append(testbase)
 515
 516 if options.daemon:
 517     logfile = os.path.join(testbase, "log")
 518     print "Forking into the background, writing progress to %s" % logfile
 519     daemonize(logfile)
 520
 521 write_pidfile(gitroot + "/autobuild.pid")
 522
 523 while True:
 524     try:
 525         run_cmd("rm -rf %s" % test_master)
 526         cleanup_list.append(test_master)
 527         run_cmd("git clone --shared %s %s" % (gitroot, test_master), show=True, dir=gitroot)
 528     except Exception:
 529         cleanup()
 530         raise
 531
 532     try:
 533         try:
 534             if options.rebase is not None:
 535                 rebase_tree(options.rebase)
 536             elif options.rebase_master:
 537                 rebase_tree(samba_master)
 538         except Exception:
 539             cleanup_list.append(gitroot + "/autobuild.pid")
 540             cleanup()
 541             email_failure(-1, 'rebase', 'rebase', 'rebase', 'rebase on master failed')
 542             sys.exit(1)
 543         blist = buildlist(tasks, args)
 544         if options.tail:
 545             blist.start_tail()
 546         (status, failed_task, failed_stage, failed_tag, errstr) = blist.run()
 547         if status != 0 or errstr != "retry":
 548             break
 549         cleanup()
 550     except Exception:
 551         cleanup()
 552         raise
 553
 554 cleanup_list.append(gitroot + "/autobuild.pid")
 555
 556 blist.kill_kids()
 557 if options.tail:
 558     print("waiting for tail to flush")
 559     time.sleep(1)
 560
 561 if status == 0:
 562     print errstr
 563     if options.passcmd is not None:
 564         print("Running passcmd: %s" % options.passcmd)
 565         run_cmd(options.passcmd, dir=test_master)
 566     if options.pushto is not None:
 567         push_to(options.pushto)
 568     elif options.push_master:
 569         push_to(samba_master_ssh)
 570     if options.keeplogs:
 571         blist.tarlogs("logs.tar.gz")
 572         print("Logs in logs.tar.gz")
 573     if options.always_email:
 574         email_success()
 575     blist.remove_logs()
 576     cleanup()
 577     print(errstr)
 578     sys.exit(0)
 579
 580 # something failed, gather a tar of the logs
 581 blist.tarlogs("logs.tar.gz")
 582
 583 if options.email is not None:
 584     email_failure(status, failed_task, failed_stage, failed_tag, errstr)
 585
 586 cleanup()
 587 print(errstr)
 588 print("Logs in logs.tar.gz")
 589 sys.exit(status)