script/land.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 # Copyright Jelmer Vernooij 2010
   5 # released under GNU GPL v3 or later
   6
   7 import fcntl
   8 from subprocess import call, check_call, Popen, PIPE
   9 import os, tarfile, sys, time
  10 from optparse import OptionParser
  11 import smtplib
  12 sys.path.insert(0, os.path.join(os.path.dirname(__file__), "../selftest"))
  13 sys.path.insert(0, os.path.join(os.path.dirname(__file__), "../lib/testtools"))
  14 sys.path.insert(0, os.path.join(os.path.dirname(__file__), "../lib/subunit/python"))
  15 import subunit
  16 import testtools
  17 import subunithelper
  18 from email.mime.text import MIMEText
  19 from email.mime.multipart import MIMEMultipart
  20
  21 samba_master = os.getenv('SAMBA_MASTER', 'git://git.samba.org/samba.git')
  22 samba_master_ssh = os.getenv('SAMBA_MASTER_SSH', 'git+ssh://git.samba.org/data/git/samba.git')
  23
  24 cleanup_list = []
  25
  26 os.putenv('CC', "ccache gcc")
  27
  28 tasks = {
  29     "source3" : [ ("autogen", "./autogen.sh", "text/plain"),
  30                   ("configure", "./configure.developer ${PREFIX}", "text/plain"),
  31                   ("make basics", "make basics", "text/plain"),
  32                   ("make", "make -j 4 everything", "text/plain"), # don't use too many processes
  33                   ("install", "make install", "text/plain"),
  34                   ("test", "TDB_NO_FSYNC=1 make subunit-test", "text/x-subunit") ],
  35
  36     "source4" : [ ("configure", "./configure.developer ${PREFIX}", "text/plain"),
  37                   ("make", "make -j", "text/plain"),
  38                   ("install", "make install", "text/plain"),
  39                   ("test", "TDB_NO_FSYNC=1 make subunit-test", "text/x-subunit") ],
  40
  41     "source4/lib/ldb" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  42                           ("make", "make -j", "text/plain"),
  43                           ("install", "make install", "text/plain"),
  44                           ("test", "make test", "text/plain") ],
  45
  46     "lib/tdb" : [ ("autogen", "./autogen-waf.sh", "text/plain"),
  47                   ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  48                   ("make", "make -j", "text/plain"),
  49                   ("install", "make install", "text/plain"),
  50                   ("test", "make test", "text/plain") ],
  51
  52     "lib/talloc" : [ ("autogen", "./autogen-waf.sh", "text/plain"),
  53                      ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  54                      ("make", "make -j", "text/plain"),
  55                      ("install", "make install", "text/plain"),
  56                      ("test", "make test", "text/x-subunit"), ],
  57
  58     "lib/replace" : [ ("autogen", "./autogen-waf.sh", "text/plain"),
  59                       ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  60                       ("make", "make -j", "text/plain"),
  61                       ("install", "make install", "text/plain"),
  62                       ("test", "make test", "text/plain"), ],
  63
  64     "lib/tevent" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  65                      ("make", "make -j", "text/plain"),
  66                      ("install", "make install", "text/plain"),
  67                      ("test", "make test", "text/plain"), ],
  68 }
  69
  70 retry_task = [ ( "retry",
  71                  '''set -e
  72                 git remote add -t master master %s
  73                 git fetch master
  74                 while :; do
  75                   sleep 60
  76                   git describe master/master > old_master.desc
  77                   git fetch master
  78                   git describe master/master > master.desc
  79                   diff old_master.desc master.desc
  80                 done
  81                ''' % samba_master, "test/plain" ) ]
  82
  83
  84 def run_cmd(cmd, dir=None, show=None, output=False, checkfail=True, shell=False):
  85     if show is None:
  86         show = options.verbose
  87     if show:
  88         print("Running: '%s' in '%s'" % (cmd, dir))
  89     if output:
  90         return Popen(cmd, stdout=PIPE, cwd=dir, shell=shell).communicate()[0]
  91     elif checkfail:
  92         return check_call(cmd, cwd=dir, shell=shell)
  93     else:
  94         return call(cmd, cwd=dir, shell=shell)
  95
  96
  97 def clone_gitroot(test_master, revision="HEAD"):
  98     run_cmd(["git", "clone", "--shared", gitroot, test_master])
  99     if revision != "HEAD":
 100         run_cmd(["git", "checkout", revision])
 101
 102
 103 class TreeStageBuilder(object):
 104     """Handle building of a particular stage for a tree.
 105     """
 106
 107     def __init__(self, tree, name, command, fail_quickly=False):
 108         self.tree = tree
 109         self.name = name
 110         self.command = command
 111         self.fail_quickly = fail_quickly
 112         self.status = None
 113         self.stdin = open(os.devnull, 'r')
 114
 115     def start(self):
 116         raise NotImplementedError(self.start)
 117
 118     def poll(self):
 119         self.status = self.proc.poll()
 120         return self.status
 121
 122     def kill(self):
 123         if self.proc is not None:
 124             try:
 125                 run_cmd(["killbysubdir", self.tree.sdir], checkfail=False)
 126             except OSError:
 127                 # killbysubdir doesn't exist ?
 128                 pass
 129             self.proc.terminate()
 130             self.proc.wait()
 131             self.proc = None
 132
 133     @property
 134     def failure_reason(self):
 135         return "failed '%s' with status %d" % (self.cmd, self.status)
 136
 137     @property
 138     def failed(self):
 139         return (os.WIFSIGNALED(self.status) or os.WEXITSTATUS(self.status) != 0)
 140
 141
 142 class PlainTreeStageBuilder(TreeStageBuilder):
 143
 144     def start(self):
 145         print '%s: [%s] Running %s' % (self.name, self.name, self.command)
 146         self.proc = Popen(self.command, shell=True, cwd=self.tree.dir,
 147                           stdout=self.tree.stdout, stderr=self.tree.stderr,
 148                           stdin=self.stdin)
 149
 150
 151 class AbortingTestResult(subunithelper.TestsuiteEnabledTestResult):
 152
 153     def __init__(self, stage):
 154         super(AbortingTestResult, self).__init__()
 155         self.stage = stage
 156
 157     def addError(self, test, details=None):
 158         self.stage.proc.terminate()
 159
 160     def addFailure(self, test, details=None):
 161         self.stage.proc.terminate()
 162
 163
 164 class SubunitTreeStageBuilder(TreeStageBuilder):
 165
 166     def __init__(self, tree, name, command, fail_quickly=False):
 167         super(SubunitTreeStageBuilder, self).__init__(tree, name, command,
 168                 fail_quickly)
 169         self.failed_tests = []
 170         self.subunit_path = os.path.join(gitroot,
 171             "%s.%s.subunit" % (self.tree.tag, self.name))
 172         self.tree.logfiles.append(
 173             (self.subunit_path, os.path.basename(self.subunit_path),
 174              "text/x-subunit"))
 175         self.subunit = open(self.subunit_path, 'w')
 176
 177         formatter = subunithelper.PlainFormatter(False, True, {})
 178         clients = [formatter, subunit.TestProtocolClient(self.subunit)]
 179         if fail_quickly:
 180             clients.append(AbortingTestResult(self))
 181         self.subunit_server = subunit.TestProtocolServer(
 182             testtools.MultiTestResult(*clients),
 183             self.subunit)
 184         self.buffered = ""
 185
 186     def start(self):
 187         print '%s: [%s] Running' % (self.tree.name, self.name)
 188         self.proc = Popen(self.command, shell=True, cwd=self.tree.dir,
 189             stdout=PIPE, stderr=self.tree.stderr, stdin=self.stdin)
 190         fd = self.proc.stdout.fileno()
 191         fl = fcntl.fcntl(fd, fcntl.F_GETFL)
 192         fcntl.fcntl(fd, fcntl.F_SETFL, fl | os.O_NONBLOCK)
 193
 194     def poll(self):
 195         try:
 196             data = self.proc.stdout.read()
 197         except IOError:
 198             return None
 199         else:
 200             self.tree.stdout.write(data)
 201             self.buffered += data
 202             buffered = ""
 203             for l in self.buffered.splitlines(True):
 204                 if l[-1] == "\n":
 205                     self.subunit_server.lineReceived(l)
 206                 else:
 207                     buffered += l
 208             self.buffered = buffered
 209             self.status = self.proc.poll()
 210             if self.status is not None:
 211                 self.subunit.close()
 212             return self.status
 213
 214
 215 class TreeBuilder(object):
 216     '''handle build of one directory'''
 217
 218     def __init__(self, name, sequence, fail_quickly=False):
 219         self.name = name
 220         self.fail_quickly = fail_quickly
 221
 222         self.tag = self.name.replace('/', '_')
 223         self.sequence = sequence
 224         self.next = 0
 225         self.stdout_path = os.path.join(gitroot, "%s.stdout" % (self.tag, ))
 226         self.stderr_path = os.path.join(gitroot, "%s.stderr" % (self.tag, ))
 227         self.logfiles = [
 228             (self.stdout_path, os.path.basename(self.stdout_path), "text/plain"),
 229             (self.stderr_path, os.path.basename(self.stderr_path), "text/plain"),
 230             ]
 231         if options.verbose:
 232             print("stdout for %s in %s" % (self.name, self.stdout_path))
 233             print("stderr for %s in %s" % (self.name, self.stderr_path))
 234         if os.path.exists(self.stdout_path):
 235             os.unlink(self.stdout_path)
 236         if os.path.exists(self.stderr_path):
 237             os.unlink(self.stderr_path)
 238         self.stdout = open(self.stdout_path, 'w')
 239         self.stderr = open(self.stderr_path, 'w')
 240         self.sdir = os.path.join(testbase, self.tag)
 241         if name in ['pass', 'fail', 'retry']:
 242             self.dir = self.sdir
 243         else:
 244             self.dir = os.path.join(self.sdir, self.name)
 245         self.prefix = os.path.join(testbase, "prefix", self.tag)
 246         run_cmd(["rm", "-rf", self.sdir])
 247         cleanup_list.append(self.sdir)
 248         cleanup_list.append(self.prefix)
 249         os.makedirs(self.sdir)
 250         run_cmd(["rm",  "-rf", self.sdir])
 251         clone_gitroot(self.sdir, revision)
 252         self.start_next()
 253
 254     def start_next(self):
 255         if self.next == len(self.sequence):
 256             print '%s: Completed OK' % self.name
 257             self.done = True
 258             self.stdout.close()
 259             self.stderr.close()
 260             return
 261         (stage_name, cmd, output_mime_type) = self.sequence[self.next]
 262         cmd = cmd.replace("${PREFIX}", "--prefix=%s" % self.prefix)
 263         if output_mime_type == "text/plain":
 264             self.stage = PlainTreeStageBuilder(self, stage_name, cmd,
 265                 self.fail_quickly)
 266         elif output_mime_type == "text/x-subunit":
 267             self.stage = SubunitTreeStageBuilder(self, stage_name, cmd,
 268                 self.fail_quickly)
 269         else:
 270             raise Exception("Unknown output mime type %s" % output_mime_type)
 271         self.stage.start()
 272         self.next += 1
 273
 274     def remove_logs(self):
 275         for path, name, mime_type in self.logfiles:
 276             os.unlink(path)
 277
 278     def attach_logs(self, outer):
 279         for path, name, mime_type in self.logfiles:
 280             assert mime_type.startswith("text/")
 281             f = open(path, 'r')
 282             try:
 283                 f.seek(0)
 284                 msg = MIMEText(f.read(), mime_type[len("text/"):])
 285             finally:
 286                 f.close()
 287             msg.add_header('Content-Disposition', 'attachment',
 288                            filename=name)
 289             outer.attach(msg)
 290
 291     @property
 292     def status(self):
 293         return self.stage.status
 294
 295     def poll(self):
 296         return self.stage.poll()
 297
 298     def kill(self):
 299         if self.stage is not None:
 300             self.stage.kill()
 301             self.stage = None
 302
 303     @property
 304     def failed(self):
 305         if self.stage is None:
 306             return False
 307         return self.stage.failed
 308
 309     @property
 310     def failure_reason(self):
 311         return "%s: [%s] %s" % (self.name, self.stage.name,
 312             self.stage.failure_reason)
 313
 314
 315 class BuildList(object):
 316     '''handle build of multiple directories'''
 317
 318     def __init__(self, tasklist, tasknames):
 319         global tasks
 320         self.tlist = []
 321         self.tail_proc = None
 322         self.retry = None
 323         if tasknames == ['pass']:
 324             tasks = { 'pass' : [ ("pass", '/bin/true', "text/plain") ]}
 325         if tasknames == ['fail']:
 326             tasks = { 'fail' : [ ("fail", '/bin/false', "text/plain") ]}
 327         if tasknames == []:
 328             tasknames = tasklist
 329         for n in tasknames:
 330             b = TreeBuilder(n, tasks[n], not options.fail_slowly)
 331             self.tlist.append(b)
 332         if options.retry:
 333             self.retry = TreeBuilder('retry', retry_task,
 334                 not options.fail_slowly)
 335             self.need_retry = False
 336
 337     def kill_kids(self):
 338         if self.tail_proc is not None:
 339             self.tail_proc.terminate()
 340             self.tail_proc.wait()
 341             self.tail_proc = None
 342         if self.retry is not None:
 343             self.retry.proc.terminate()
 344             self.retry.proc.wait()
 345             self.retry = None
 346         for b in self.tlist:
 347             b.kill()
 348
 349     def wait_one(self):
 350         while True:
 351             none_running = True
 352             for b in self.tlist:
 353                 if b.stage is None:
 354                     continue
 355                 none_running = False
 356                 if b.poll() is None:
 357                     continue
 358                 b.stage = None
 359                 return b
 360             if options.retry:
 361                 ret = self.retry.proc.poll()
 362                 if ret is not None:
 363                     self.need_retry = True
 364                     self.retry = None
 365                     return None
 366             if none_running:
 367                 return None
 368             time.sleep(0.1)
 369
 370     def run(self):
 371         while True:
 372             b = self.wait_one()
 373             if options.retry and self.need_retry:
 374                 self.kill_kids()
 375                 print("retry needed")
 376                 return (0, None, None, None, "retry")
 377             if b is None:
 378                 break
 379             if b.failed:
 380                 self.kill_kids()
 381                 return (b.status, b.name, b.stage, b.tag, b.failure_reason)
 382             b.start_next()
 383         self.kill_kids()
 384         return (0, None, None, None, "All OK")
 385
 386     def tarlogs(self, fname):
 387         tar = tarfile.open(fname, "w:gz")
 388         for b in self.tlist:
 389             for (path, name, mime_type) in b.logfiles:
 390                 tar.add(path, arcname=name)
 391         if os.path.exists("autobuild.log"):
 392             tar.add("autobuild.log")
 393         tar.close()
 394
 395     def attach_logs(self, msg):
 396         for b in self.tlist:
 397             b.attach_logs(msg)
 398
 399     def remove_logs(self):
 400         for b in self.tlist:
 401             b.remove_logs()
 402
 403     def start_tail(self):
 404         cmd = "tail -f *.stdout *.stderr"
 405         self.tail_proc = Popen(cmd, shell=True, cwd=gitroot)
 406
 407
 408 def cleanup():
 409     if options.nocleanup:
 410         return
 411     print("Cleaning up ....")
 412     for d in cleanup_list:
 413         run_cmd(["rm", "-rf", d])
 414
 415
 416 def find_git_root(p):
 417     '''get to the top of the git repo'''
 418     while p != '/':
 419         if os.path.isdir(os.path.join(p, ".git")):
 420             return p
 421         p = os.path.abspath(os.path.join(p, '..'))
 422     return None
 423
 424
 425 def daemonize(logfile):
 426     pid = os.fork()
 427     if pid == 0: # Parent
 428         os.setsid()
 429         pid = os.fork()
 430         if pid != 0: # Actual daemon
 431             os._exit(0)
 432     else: # Grandparent
 433         os._exit(0)
 434
 435     import resource      # Resource usage information.
 436     maxfd = resource.getrlimit(resource.RLIMIT_NOFILE)[1]
 437     if maxfd == resource.RLIM_INFINITY:
 438         maxfd = 1024 # Rough guess at maximum number of open file descriptors.
 439     for fd in range(0, maxfd):
 440         try:
 441             os.close(fd)
 442         except OSError:
 443             pass
 444     os.open(logfile, os.O_RDWR | os.O_CREAT)
 445     os.dup2(0, 1)
 446     os.dup2(0, 2)
 447
 448
 449 def rebase_tree(url):
 450     print("Rebasing on %s" % url)
 451     run_cmd(["git", "remote", "add", "-t", "master", "master", url], show=True, dir=test_master)
 452     run_cmd(["git", "fetch", "master"], show=True, dir=test_master)
 453     if options.fix_whitespace:
 454         run_cmd(["git", "rebase", "--whitespace=fix", "master/master"], show=True, dir=test_master)
 455     else:
 456         run_cmd(["git", "rebase", "master/master"], show=True, dir=test_master)
 457     diff = run_cmd(["git", "--no-pager", "diff", "HEAD", "master/master"], dir=test_master, output=True)
 458     if diff == '':
 459         print("No differences between HEAD and master/master - exiting")
 460         sys.exit(0)
 461
 462 def push_to(url):
 463     print("Pushing to %s" % url)
 464     if options.mark:
 465         run_cmd("EDITOR=script/commit_mark.sh git commit --amend -c HEAD", dir=test_master, shell=True)
 466         # the notes method doesn't work yet, as metze hasn't allowed refs/notes/* in master
 467         # run_cmd("EDITOR=script/commit_mark.sh git notes edit HEAD", dir=test_master)
 468     run_cmd(["git", "remote", "add", "-t", "master", "pushto", url], show=True, dir=test_master)
 469     run_cmd(["git", "push", "pushto", "+HEAD:master"], show=True, dir=test_master)
 470
 471 def_testbase = os.getenv("AUTOBUILD_TESTBASE", "/memdisk/%s" % os.getenv('USER'))
 472
 473 parser = OptionParser()
 474 parser.add_option("", "--repository", help="repository to run tests for", default=None, type=str)
 475 parser.add_option("", "--revision", help="revision to compile if not HEAD", default=None, type=str)
 476 parser.add_option("", "--tail", help="show output while running", default=False, action="store_true")
 477 parser.add_option("", "--keeplogs", help="keep logs", default=False, action="store_true")
 478 parser.add_option("", "--nocleanup", help="don't remove test tree", default=False, action="store_true")
 479 parser.add_option("", "--testbase", help="base directory to run tests in (default %s)" % def_testbase,
 480                   default=def_testbase)
 481 parser.add_option("", "--passcmd", help="command to run on success", default=None)
 482 parser.add_option("", "--verbose", help="show all commands as they are run",
 483                   default=False, action="store_true")
 484 parser.add_option("", "--rebase", help="rebase on the given tree before testing",
 485                   default=None, type='str')
 486 parser.add_option("", "--rebase-master", help="rebase on %s before testing" % samba_master,
 487                   default=False, action='store_true')
 488 parser.add_option("", "--pushto", help="push to a git url on success",
 489                   default=None, type='str')
 490 parser.add_option("", "--push-master", help="push to %s on success" % samba_master_ssh,
 491                   default=False, action='store_true')
 492 parser.add_option("", "--mark", help="add a Tested-By signoff before pushing",
 493                   default=False, action="store_true")
 494 parser.add_option("", "--fix-whitespace", help="fix whitespace on rebase",
 495                   default=False, action="store_true")
 496 parser.add_option("", "--retry", help="automatically retry if master changes",
 497                   default=False, action="store_true")
 498 parser.add_option("", "--email", help="send email to the given address on failure",
 499                   type='str', default=None)
 500 parser.add_option("", "--always-email", help="always send email, even on success",
 501                   action="store_true")
 502 parser.add_option("", "--daemon", help="daemonize after initial setup",
 503                   action="store_true")
 504 parser.add_option("", "--fail-slowly", help="continue running tests even after one has already failed",
 505                   action="store_true")
 506
 507
 508 def email_failure(blist, status, failed_task, failed_stage, failed_tag, errstr):
 509     '''send an email to options.email about the failure'''
 510     user = os.getenv("USER")
 511     text = '''
 512 Dear Developer,
 513
 514 Your autobuild failed when trying to test %s with the following error:
 515    %s
 516
 517 the autobuild has been abandoned. Please fix the error and resubmit.
 518
 519 You can see logs of the failed task here:
 520
 521   http://git.samba.org/%s/samba-autobuild/%s.stdout
 522   http://git.samba.org/%s/samba-autobuild/%s.stderr
 523
 524 A summary of the autobuild process is here:
 525
 526   http://git.samba.org/%s/samba-autobuild/autobuild.log
 527
 528 or you can get full logs of all tasks in this job here:
 529
 530   http://git.samba.org/%s/samba-autobuild/logs.tar.gz
 531
 532 The top commit for the tree that was built was:
 533
 534 %s
 535
 536 ''' % (failed_task, errstr, user, failed_tag, user, failed_tag, user, user,
 537        get_top_commit_msg(test_master))
 538
 539     msg = MIMEMultipart()
 540     msg['Subject'] = 'autobuild failure for task %s during %s' % (failed_task, failed_stage)
 541     msg['From'] = 'autobuild@samba.org'
 542     msg['To'] = options.email
 543
 544     main = MIMEText(text)
 545     msg.attach(main)
 546
 547     blist.attach_logs(msg)
 548
 549     s = smtplib.SMTP()
 550     s.connect()
 551     s.sendmail(msg['From'], [msg['To']], msg.as_string())
 552     s.quit()
 553
 554 def email_success(blist):
 555     '''send an email to options.email about a successful build'''
 556     user = os.getenv("USER")
 557     text = '''
 558 Dear Developer,
 559
 560 Your autobuild has succeeded.
 561
 562 '''
 563
 564     if options.keeplogs:
 565         text += '''
 566
 567 you can get full logs of all tasks in this job here:
 568
 569   http://git.samba.org/%s/samba-autobuild/logs.tar.gz
 570
 571 ''' % user
 572
 573     text += '''
 574 The top commit for the tree that was built was:
 575
 576 %s
 577 ''' % (get_top_commit_msg(test_master),)
 578
 579     msg = MIMEMultipart()
 580     msg['Subject'] = 'autobuild success'
 581     msg['From'] = 'autobuild@samba.org'
 582     msg['To'] = options.email
 583
 584     main = MIMEText(text, 'plain')
 585     msg.attach(main)
 586
 587     blist.attach_logs(msg)
 588
 589     s = smtplib.SMTP()
 590     s.connect()
 591     s.sendmail(msg['From'], [msg['To']], msg.as_string())
 592     s.quit()
 593
 594
 595 (options, args) = parser.parse_args()
 596
 597 if options.retry:
 598     if not options.rebase_master and options.rebase is None:
 599         raise Exception('You can only use --retry if you also rebase')
 600
 601 testbase = os.path.join(options.testbase, "b%u" % (os.getpid(),))
 602 test_master = os.path.join(testbase, "master")
 603
 604 if options.repository is not None:
 605     repository = options.repository
 606 else:
 607     repository = os.getcwd()
 608
 609 gitroot = find_git_root(repository)
 610 if gitroot is None:
 611     raise Exception("Failed to find git root under %s" % repository)
 612
 613 # get the top commit message, for emails
 614 if options.revision is not None:
 615     revision = options.revision
 616 else:
 617     revision = "HEAD"
 618
 619 def get_top_commit_msg(reporoot):
 620     return run_cmd(["git", "log", "-1"], dir=reporoot, output=True)
 621
 622 try:
 623     os.makedirs(testbase)
 624 except Exception, reason:
 625     raise Exception("Unable to create %s : %s" % (testbase, reason))
 626 cleanup_list.append(testbase)
 627
 628 if options.daemon:
 629     logfile = os.path.join(testbase, "log")
 630     print "Forking into the background, writing progress to %s" % logfile
 631     daemonize(logfile)
 632
 633 while True:
 634     try:
 635         run_cmd(["rm", "-rf", test_master])
 636         cleanup_list.append(test_master)
 637         clone_gitroot(test_master, revision)
 638     except:
 639         cleanup()
 640         raise
 641
 642     try:
 643         if options.rebase is not None:
 644             rebase_tree(options.rebase)
 645         elif options.rebase_master:
 646             rebase_tree(samba_master)
 647         blist = BuildList(tasks, args)
 648         if options.tail:
 649             blist.start_tail()
 650         (status, failed_task, failed_stage, failed_tag, errstr) = blist.run()
 651         if status != 0 or errstr != "retry":
 652             break
 653         cleanup()
 654     except:
 655         cleanup()
 656         raise
 657
 658 blist.kill_kids()
 659 if options.tail:
 660     print("waiting for tail to flush")
 661     time.sleep(1)
 662
 663 if status == 0:
 664     print errstr
 665     if options.passcmd is not None:
 666         print("Running passcmd: %s" % options.passcmd)
 667         run_cmd(options.passcmd, dir=test_master, shell=True)
 668     if options.pushto is not None:
 669         push_to(options.pushto)
 670     elif options.push_master:
 671         push_to(samba_master_ssh)
 672     if options.keeplogs:
 673         blist.tarlogs("logs.tar.gz")
 674         print("Logs in logs.tar.gz")
 675     if options.always_email:
 676         email_success(blist)
 677     blist.remove_logs()
 678     cleanup()
 679     print(errstr)
 680 else:
 681     # something failed, gather a tar of the logs
 682     blist.tarlogs("logs.tar.gz")
 683
 684     if options.email is not None:
 685         email_failure(blist, status, failed_task, failed_stage, failed_tag, errstr)
 686
 687     cleanup()
 688     print(errstr)
 689     print("Logs in logs.tar.gz")
 690 sys.exit(status)