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 from cStringIO import StringIO
   8 import fcntl
   9 from subprocess import call, check_call, Popen, PIPE
  10 import os, tarfile, sys, time
  11 from optparse import OptionParser
  12 import smtplib
  13 sys.path.insert(0, os.path.join(os.path.dirname(__file__), "../selftest"))
  14 sys.path.insert(0, os.path.join(os.path.dirname(__file__), "../lib/testtools"))
  15 sys.path.insert(0, os.path.join(os.path.dirname(__file__), "../lib/subunit/python"))
  16 import subunit
  17 import testtools
  18 import subunithelper
  19 from email.mime.application import MIMEApplication
  20 from email.mime.text import MIMEText
  21 from email.mime.multipart import MIMEMultipart
  22
  23 samba_master = os.getenv('SAMBA_MASTER', 'git://git.samba.org/samba.git')
  24 samba_master_ssh = os.getenv('SAMBA_MASTER_SSH', 'git+ssh://git.samba.org/data/git/samba.git')
  25
  26 cleanup_list = []
  27
  28 os.putenv('CC', "ccache gcc")
  29
  30 tasks = {
  31     "source3" : [ ("autogen", "./autogen.sh", "text/plain"),
  32                   ("configure", "./configure.developer ${PREFIX}", "text/plain"),
  33                   ("make basics", "make basics", "text/plain"),
  34                   ("make", "make -j 4 everything", "text/plain"), # don't use too many processes
  35                   ("install", "make install", "text/plain"),
  36                   ("test", "TDB_NO_FSYNC=1 make subunit-test", "text/x-subunit") ],
  37
  38     "source4" : [ ("configure", "./configure.developer ${PREFIX}", "text/plain"),
  39                   ("make", "make -j", "text/plain"),
  40                   ("install", "make install", "text/plain"),
  41                   ("test", "TDB_NO_FSYNC=1 make subunit-test", "text/x-subunit") ],
  42
  43     "source4/lib/ldb" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  44                           ("make", "make -j", "text/plain"),
  45                           ("install", "make install", "text/plain"),
  46                           ("test", "make test", "text/plain") ],
  47
  48     "lib/tdb" : [ ("autogen", "./autogen-waf.sh", "text/plain"),
  49                   ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  50                   ("make", "make -j", "text/plain"),
  51                   ("install", "make install", "text/plain"),
  52                   ("test", "make test", "text/plain") ],
  53
  54     "lib/talloc" : [ ("autogen", "./autogen-waf.sh", "text/plain"),
  55                      ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  56                      ("make", "make -j", "text/plain"),
  57                      ("install", "make install", "text/plain"),
  58                      ("test", "make test", "text/x-subunit"), ],
  59
  60     "lib/replace" : [ ("autogen", "./autogen-waf.sh", "text/plain"),
  61                       ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  62                       ("make", "make -j", "text/plain"),
  63                       ("install", "make install", "text/plain"),
  64                       ("test", "make test", "text/plain"), ],
  65
  66     "lib/tevent" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  67                      ("make", "make -j", "text/plain"),
  68                      ("install", "make install", "text/plain"),
  69                      ("test", "make test", "text/plain"), ],
  70 }
  71
  72
  73 def run_cmd(cmd, dir=None, show=None, output=False, checkfail=True, shell=False):
  74     if show is None:
  75         show = options.verbose
  76     if show:
  77         print("Running: '%s' in '%s'" % (cmd, dir))
  78     if output:
  79         return Popen(cmd, stdout=PIPE, cwd=dir, shell=shell).communicate()[0]
  80     elif checkfail:
  81         return check_call(cmd, cwd=dir, shell=shell)
  82     else:
  83         return call(cmd, cwd=dir, shell=shell)
  84
  85
  86 def clone_gitroot(test_master, revision="HEAD"):
  87     run_cmd(["git", "clone", "--shared", gitroot, test_master])
  88     if revision != "HEAD":
  89         run_cmd(["git", "checkout", revision])
  90
  91
  92 class RetryChecker(object):
  93     """Check whether it is necessary to retry."""
  94
  95     def __init__(self, dir):
  96         run_cmd(["git", "remote", "add", "-t", "master", "master", samba_master])
  97         run_cmd(["git", "fetch", "master"])
  98         cmd = '''set -e
  99                 while :; do
 100                   sleep 60
 101                   git describe master/master > old_master.desc
 102                   git fetch master
 103                   git describe master/master > master.desc
 104                   diff old_master.desc master.desc
 105                 done
 106                '''
 107         self.proc = Popen(cmd, shell=True, cwd=self.dir)
 108
 109     def poll(self):
 110         return self.proc.poll()
 111
 112     def kill(self):
 113         self.proc.terminate()
 114         self.proc.wait()
 115         self.retry.proc = None
 116
 117
 118 class TreeStageBuilder(object):
 119     """Handle building of a particular stage for a tree.
 120     """
 121
 122     def __init__(self, tree, name, command, fail_quickly=False):
 123         self.tree = tree
 124         self.name = name
 125         self.command = command
 126         self.fail_quickly = fail_quickly
 127         self.exitcode = None
 128         self.stdin = open(os.devnull, 'r')
 129
 130     def start(self):
 131         raise NotImplementedError(self.start)
 132
 133     def poll(self):
 134         self.exitcode = self.proc.poll()
 135         return self.exitcode
 136
 137     def kill(self):
 138         if self.proc is not None:
 139             try:
 140                 run_cmd(["killbysubdir", self.tree.sdir], checkfail=False)
 141             except OSError:
 142                 # killbysubdir doesn't exist ?
 143                 pass
 144             self.proc.terminate()
 145             self.proc.wait()
 146             self.proc = None
 147
 148     @property
 149     def failure_reason(self):
 150         raise NotImplementedError(self.failure_reason)
 151
 152     @property
 153     def failed(self):
 154         return (self.exitcode != 0)
 155
 156
 157 class PlainTreeStageBuilder(TreeStageBuilder):
 158
 159     def start(self):
 160         print '%s: [%s] Running %s' % (self.name, self.name, self.command)
 161         self.proc = Popen(self.command, shell=True, cwd=self.tree.dir,
 162                           stdout=self.tree.stdout, stderr=self.tree.stderr,
 163                           stdin=self.stdin)
 164
 165     @property
 166     def failure_reason(self):
 167         return "failed '%s' with exit code %d" % (self.command, self.exitcode)
 168
 169
 170 class AbortingTestResult(subunithelper.TestsuiteEnabledTestResult):
 171
 172     def __init__(self, stage):
 173         super(AbortingTestResult, self).__init__()
 174         self.stage = stage
 175
 176     def addError(self, test, details=None):
 177         self.stage.proc.terminate()
 178
 179     def addFailure(self, test, details=None):
 180         self.stage.proc.terminate()
 181
 182
 183 class FailureTrackingTestResult(subunithelper.TestsuiteEnabledTestResult):
 184
 185     def __init__(self, stage):
 186         super(FailureTrackingTestResult, self).__init__()
 187         self.stage = stage
 188
 189     def addError(self, test, details=None):
 190         if self.stage.failed_test is None:
 191             self.stage.failed_test = ("error", test)
 192
 193     def addFailure(self, test, details=None):
 194         if self.stage.failed_test is None:
 195             self.stage.failed_test = ("failure", test)
 196
 197
 198 class SubunitTreeStageBuilder(TreeStageBuilder):
 199
 200     def __init__(self, tree, name, command, fail_quickly=False):
 201         super(SubunitTreeStageBuilder, self).__init__(tree, name, command,
 202                 fail_quickly)
 203         self.failed_test = None
 204         self.subunit_path = os.path.join(gitroot,
 205             "%s.%s.subunit" % (self.tree.tag, self.name))
 206         self.tree.logfiles.append(
 207             (self.subunit_path, os.path.basename(self.subunit_path),
 208              "text/x-subunit"))
 209         self.subunit = open(self.subunit_path, 'w')
 210
 211         formatter = subunithelper.PlainFormatter(False, True, {})
 212         clients = [formatter, subunit.TestProtocolClient(self.subunit),
 213                    FailureTrackingTestResult(self)]
 214         if fail_quickly:
 215             clients.append(AbortingTestResult(self))
 216         self.subunit_server = subunit.TestProtocolServer(
 217             testtools.MultiTestResult(*clients),
 218             self.subunit)
 219         self.buffered = ""
 220
 221     def start(self):
 222         print '%s: [%s] Running' % (self.tree.name, self.name)
 223         self.proc = Popen(self.command, shell=True, cwd=self.tree.dir,
 224             stdout=PIPE, stderr=self.tree.stderr, stdin=self.stdin)
 225         fd = self.proc.stdout.fileno()
 226         fl = fcntl.fcntl(fd, fcntl.F_GETFL)
 227         fcntl.fcntl(fd, fcntl.F_SETFL, fl | os.O_NONBLOCK)
 228
 229     def poll(self):
 230         try:
 231             data = self.proc.stdout.read()
 232         except IOError:
 233             return None
 234         else:
 235             self.buffered += data
 236             buffered = ""
 237             for l in self.buffered.splitlines(True):
 238                 if l[-1] == "\n":
 239                     self.subunit_server.lineReceived(l)
 240                 else:
 241                     buffered += l
 242             self.buffered = buffered
 243             self.exitcode = self.proc.poll()
 244             if self.exitcode is not None:
 245                 self.subunit.close()
 246             return self.exitcode
 247
 248     @property
 249     def failure_reason(self):
 250         if self.failed_test:
 251             return "failed '%s' with %s in test %s" (self.command, self.failed_test[0], self.failed_test[1])
 252         else:
 253             return "failed '%s' with exit code %d in unknown test" % (self.command, self.exitcode)
 254
 255
 256 class TreeBuilder(object):
 257     '''handle build of one directory'''
 258
 259     def __init__(self, name, sequence, fail_quickly=False):
 260         self.name = name
 261         self.fail_quickly = fail_quickly
 262
 263         self.tag = self.name.replace('/', '_')
 264         self.sequence = sequence
 265         self.next = 0
 266         self.stages = []
 267         self.stdout_path = os.path.join(gitroot, "%s.stdout" % (self.tag, ))
 268         self.stderr_path = os.path.join(gitroot, "%s.stderr" % (self.tag, ))
 269         self.logfiles = [
 270             (self.stdout_path, os.path.basename(self.stdout_path), "text/plain"),
 271             (self.stderr_path, os.path.basename(self.stderr_path), "text/plain"),
 272             ]
 273         if options.verbose:
 274             print("stdout for %s in %s" % (self.name, self.stdout_path))
 275             print("stderr for %s in %s" % (self.name, self.stderr_path))
 276         if os.path.exists(self.stdout_path):
 277             os.unlink(self.stdout_path)
 278         if os.path.exists(self.stderr_path):
 279             os.unlink(self.stderr_path)
 280         self.stdout = open(self.stdout_path, 'w')
 281         self.stderr = open(self.stderr_path, 'w')
 282         self.sdir = os.path.join(testbase, self.tag)
 283         if name in ['pass', 'fail', 'retry']:
 284             self.dir = self.sdir
 285         else:
 286             self.dir = os.path.join(self.sdir, self.name)
 287         self.prefix = os.path.join(testbase, "prefix", self.tag)
 288         run_cmd(["rm", "-rf", self.sdir])
 289         cleanup_list.append(self.sdir)
 290         cleanup_list.append(self.prefix)
 291         os.makedirs(self.sdir)
 292         run_cmd(["rm",  "-rf", self.sdir])
 293         clone_gitroot(self.sdir, revision)
 294         self.start_next()
 295         self.exitcode = None
 296
 297     def start_next(self):
 298         if self.next == len(self.sequence):
 299             print '%s: Completed OK' % self.name
 300             self.done = True
 301             self.stdout.close()
 302             self.stderr.close()
 303             return
 304         (stage_name, cmd, output_mime_type) = self.sequence[self.next]
 305         cmd = cmd.replace("${PREFIX}", "--prefix=%s" % self.prefix)
 306         if output_mime_type == "text/plain":
 307             self.current_stage = PlainTreeStageBuilder(self, stage_name, cmd,
 308                 self.fail_quickly)
 309         elif output_mime_type == "text/x-subunit":
 310             self.current_stage = SubunitTreeStageBuilder(self, stage_name, cmd,
 311                 self.fail_quickly)
 312         else:
 313             raise Exception("Unknown output mime type %s" % output_mime_type)
 314         self.stages.append(self.current_stage)
 315         self.current_stage.start()
 316         self.next += 1
 317
 318     def remove_logs(self):
 319         for path, name, mime_type in self.logfiles:
 320             os.unlink(path)
 321
 322     def poll(self):
 323         self.exitcode = self.current_stage.poll()
 324         if self.exitcode is not None:
 325             self.current_stage = None
 326         return self.exitcode
 327
 328     def kill(self):
 329         if self.current_stage is not None:
 330             self.current_stage.kill()
 331             self.current_stage = None
 332
 333     @property
 334     def failed(self):
 335         return any([s.failed for s in self.stages])
 336
 337     @property
 338     def failed_stage(self):
 339         for s in self.stages:
 340             if s.failed:
 341                 return s
 342         return s
 343
 344     @property
 345     def failure_reason(self):
 346         return "%s: [%s] %s" % (self.name, self.failed_stage.name,
 347             self.failed_stage.failure_reason)
 348
 349
 350 class BuildList(object):
 351     '''handle build of multiple directories'''
 352
 353     def __init__(self, tasklist, tasknames):
 354         global tasks
 355         self.tlist = []
 356         self.tail_proc = None
 357         self.retry = None
 358         if tasknames == ['pass']:
 359             tasks = { 'pass' : [ ("pass", '/bin/true', "text/plain") ]}
 360         if tasknames == ['fail']:
 361             tasks = { 'fail' : [ ("fail", '/bin/false', "text/plain") ]}
 362         if tasknames == []:
 363             tasknames = tasklist
 364         for n in tasknames:
 365             b = TreeBuilder(n, tasks[n], not options.fail_slowly)
 366             self.tlist.append(b)
 367         if options.retry:
 368             self.retry = RetryChecker(self.sdir)
 369             self.need_retry = False
 370
 371     def kill_kids(self):
 372         if self.tail_proc is not None:
 373             self.tail_proc.terminate()
 374             self.tail_proc.wait()
 375             self.tail_proc = None
 376         if self.retry is not None:
 377             self.retry.kill()
 378         for b in self.tlist:
 379             b.kill()
 380
 381     def wait_one(self):
 382         while True:
 383             none_running = True
 384             for b in self.tlist:
 385                 if b.current_stage is None:
 386                     continue
 387                 none_running = False
 388                 if b.poll() is None:
 389                     continue
 390                 return b
 391             if options.retry:
 392                 ret = self.retry.poll()
 393                 if ret:
 394                     self.need_retry = True
 395                     self.retry = None
 396                     return None
 397             if none_running:
 398                 return None
 399             time.sleep(0.1)
 400
 401     def run(self):
 402         while True:
 403             b = self.wait_one()
 404             if options.retry and self.need_retry:
 405                 self.kill_kids()
 406                 print("retry needed")
 407                 return (0, None, None, None, "retry")
 408             if b is None:
 409                 break
 410             if b.failed:
 411                 self.kill_kids()
 412                 return (b.exitcode, b.name, b.failed_stage, b.tag, b.failure_reason)
 413             b.start_next()
 414         self.kill_kids()
 415         return (0, None, None, None, "All OK")
 416
 417     def tarlogs(self, name=None, fileobj=None):
 418         tar = tarfile.open(name=name, fileobj=fileobj, mode="w:gz")
 419         for b in self.tlist:
 420             for (path, name, mime_type) in b.logfiles:
 421                 tar.add(path, arcname=name)
 422         if os.path.exists("autobuild.log"):
 423             tar.add("autobuild.log")
 424         tar.close()
 425
 426     def attach_logs(self, outer):
 427         f = StringIO()
 428         self.tarlogs(fileobj=f)
 429         msg = MIMEApplication(f.getvalue(), "x-gzip")
 430         msg.add_header('Content-Disposition', 'attachment',
 431                        filename="logs.tar.gz")
 432         outer.attach(msg)
 433
 434     def remove_logs(self):
 435         for b in self.tlist:
 436             b.remove_logs()
 437
 438     def start_tail(self):
 439         cmd = "tail -f *.stdout *.stderr"
 440         self.tail_proc = Popen(cmd, shell=True, cwd=gitroot)
 441
 442
 443 def cleanup():
 444     if options.nocleanup:
 445         return
 446     print("Cleaning up ....")
 447     for d in cleanup_list:
 448         run_cmd(["rm", "-rf", d])
 449
 450
 451 def find_git_root(p):
 452     '''get to the top of the git repo'''
 453     while p != '/':
 454         if os.path.isdir(os.path.join(p, ".git")):
 455             return p
 456         p = os.path.abspath(os.path.join(p, '..'))
 457     return None
 458
 459
 460 def daemonize(logfile):
 461     pid = os.fork()
 462     if pid == 0: # Parent
 463         os.setsid()
 464         pid = os.fork()
 465         if pid != 0: # Actual daemon
 466             os._exit(0)
 467     else: # Grandparent
 468         os._exit(0)
 469
 470     import resource      # Resource usage information.
 471     maxfd = resource.getrlimit(resource.RLIMIT_NOFILE)[1]
 472     if maxfd == resource.RLIM_INFINITY:
 473         maxfd = 1024 # Rough guess at maximum number of open file descriptors.
 474     for fd in range(0, maxfd):
 475         try:
 476             os.close(fd)
 477         except OSError:
 478             pass
 479     os.open(logfile, os.O_RDWR | os.O_CREAT)
 480     os.dup2(0, 1)
 481     os.dup2(0, 2)
 482
 483
 484 def rebase_tree(url):
 485     print("Rebasing on %s" % url)
 486     run_cmd(["git", "remote", "add", "-t", "master", "master", url], show=True,
 487             dir=test_master)
 488     run_cmd(["git", "fetch", "master"], show=True, dir=test_master)
 489     if options.fix_whitespace:
 490         run_cmd(["git", "rebase", "--whitespace=fix", "master/master"],
 491                 show=True, dir=test_master)
 492     else:
 493         run_cmd(["git", "rebase", "master/master"], show=True, dir=test_master)
 494     diff = run_cmd(["git", "--no-pager", "diff", "HEAD", "master/master"],
 495         dir=test_master, output=True)
 496     if diff == '':
 497         print("No differences between HEAD and master/master - exiting")
 498         sys.exit(0)
 499
 500 def push_to(url):
 501     print("Pushing to %s" % url)
 502     if options.mark:
 503         run_cmd("EDITOR=script/commit_mark.sh git commit --amend -c HEAD",
 504             dir=test_master, shell=True)
 505         # the notes method doesn't work yet, as metze hasn't allowed
 506         # refs/notes/* in master
 507         # run_cmd("EDITOR=script/commit_mark.sh git notes edit HEAD",
 508         #     dir=test_master)
 509     run_cmd(["git", "remote", "add", "-t", "master", "pushto", url], show=True,
 510         dir=test_master)
 511     run_cmd(["git", "push", "pushto", "+HEAD:master"], show=True,
 512         dir=test_master)
 513
 514 def_testbase = os.getenv("AUTOBUILD_TESTBASE", "/memdisk/%s" % os.getenv('USER'))
 515
 516 parser = OptionParser()
 517 parser.add_option("--repository", help="repository to run tests for", default=None, type=str)
 518 parser.add_option("--revision", help="revision to compile if not HEAD", default=None, type=str)
 519 parser.add_option("--tail", help="show output while running", default=False, action="store_true")
 520 parser.add_option("--keeplogs", help="keep logs", default=False, action="store_true")
 521 parser.add_option("--nocleanup", help="don't remove test tree", default=False, action="store_true")
 522 parser.add_option("--testbase", help="base directory to run tests in (default %s)" % def_testbase,
 523                   default=def_testbase)
 524 parser.add_option("--passcmd", help="command to run on success", default=None)
 525 parser.add_option("--verbose", help="show all commands as they are run",
 526                   default=False, action="store_true")
 527 parser.add_option("--rebase", help="rebase on the given tree before testing",
 528                   default=None, type='str')
 529 parser.add_option("--rebase-master", help="rebase on %s before testing" % samba_master,
 530                   default=False, action='store_true')
 531 parser.add_option("--pushto", help="push to a git url on success",
 532                   default=None, type='str')
 533 parser.add_option("--push-master", help="push to %s on success" % samba_master_ssh,
 534                   default=False, action='store_true')
 535 parser.add_option("--mark", help="add a Tested-By signoff before pushing",
 536                   default=False, action="store_true")
 537 parser.add_option("--fix-whitespace", help="fix whitespace on rebase",
 538                   default=False, action="store_true")
 539 parser.add_option("--retry", help="automatically retry if master changes",
 540                   default=False, action="store_true")
 541 parser.add_option("--email", help="send email to the given address on failure",
 542                   type='str', default=None)
 543 parser.add_option("--always-email", help="always send email, even on success",
 544                   action="store_true")
 545 parser.add_option("--daemon", help="daemonize after initial setup",
 546                   action="store_true")
 547 parser.add_option("--fail-slowly", help="continue running tests even after one has already failed",
 548                   action="store_true")
 549
 550
 551 def email_failure(blist, exitcode, failed_task, failed_stage, failed_tag, errstr):
 552     '''send an email to options.email about the failure'''
 553     user = os.getenv("USER")
 554     text = '''
 555 Dear Developer,
 556
 557 Your autobuild failed when trying to test %s with the following error:
 558    %s
 559
 560 the autobuild has been abandoned. Please fix the error and resubmit.
 561
 562 You can see logs of the failed task here:
 563
 564   http://git.samba.org/%s/samba-autobuild/%s.stdout
 565   http://git.samba.org/%s/samba-autobuild/%s.stderr
 566
 567 A summary of the autobuild process is here:
 568
 569   http://git.samba.org/%s/samba-autobuild/autobuild.log
 570
 571 or you can get full logs of all tasks in this job here:
 572
 573   http://git.samba.org/%s/samba-autobuild/logs.tar.gz
 574
 575 The top commit for the tree that was built was:
 576
 577 %s
 578
 579 ''' % (failed_task, errstr, user, failed_tag, user, failed_tag, user, user,
 580        get_top_commit_msg(test_master))
 581
 582     msg = MIMEMultipart()
 583     msg['Subject'] = 'autobuild failure for task %s during %s' % (
 584         failed_task, failed_stage.name)
 585     msg['From'] = 'autobuild@samba.org'
 586     msg['To'] = options.email
 587
 588     main = MIMEText(text)
 589     msg.attach(main)
 590
 591     blist.attach_logs(msg)
 592
 593     s = smtplib.SMTP()
 594     s.connect()
 595     s.sendmail(msg['From'], [msg['To']], msg.as_string())
 596     s.quit()
 597
 598 def email_success(blist):
 599     '''send an email to options.email about a successful build'''
 600     user = os.getenv("USER")
 601     text = '''
 602 Dear Developer,
 603
 604 Your autobuild has succeeded.
 605
 606 '''
 607
 608     if options.keeplogs:
 609         text += '''
 610
 611 you can get full logs of all tasks in this job here:
 612
 613   http://git.samba.org/%s/samba-autobuild/logs.tar.gz
 614
 615 ''' % user
 616
 617     text += '''
 618 The top commit for the tree that was built was:
 619
 620 %s
 621 ''' % (get_top_commit_msg(test_master),)
 622
 623     msg = MIMEMultipart()
 624     msg['Subject'] = 'autobuild success'
 625     msg['From'] = 'autobuild@samba.org'
 626     msg['To'] = options.email
 627
 628     main = MIMEText(text, 'plain')
 629     msg.attach(main)
 630
 631     blist.attach_logs(msg)
 632
 633     s = smtplib.SMTP()
 634     s.connect()
 635     s.sendmail(msg['From'], [msg['To']], msg.as_string())
 636     s.quit()
 637
 638
 639 (options, args) = parser.parse_args()
 640
 641 if options.retry:
 642     if not options.rebase_master and options.rebase is None:
 643         raise Exception('You can only use --retry if you also rebase')
 644
 645 testbase = os.path.join(options.testbase, "b%u" % (os.getpid(),))
 646 test_master = os.path.join(testbase, "master")
 647
 648 if options.repository is not None:
 649     repository = options.repository
 650 else:
 651     repository = os.getcwd()
 652
 653 gitroot = find_git_root(repository)
 654 if gitroot is None:
 655     raise Exception("Failed to find git root under %s" % repository)
 656
 657 # get the top commit message, for emails
 658 if options.revision is not None:
 659     revision = options.revision
 660 else:
 661     revision = "HEAD"
 662
 663 def get_top_commit_msg(reporoot):
 664     return run_cmd(["git", "log", "-1"], dir=reporoot, output=True)
 665
 666 try:
 667     os.makedirs(testbase)
 668 except Exception, reason:
 669     raise Exception("Unable to create %s : %s" % (testbase, reason))
 670 cleanup_list.append(testbase)
 671
 672 if options.daemon:
 673     logfile = os.path.join(testbase, "log")
 674     print "Forking into the background, writing progress to %s" % logfile
 675     daemonize(logfile)
 676
 677 while True:
 678     try:
 679         run_cmd(["rm", "-rf", test_master])
 680         cleanup_list.append(test_master)
 681         clone_gitroot(test_master, revision)
 682     except:
 683         cleanup()
 684         raise
 685
 686     try:
 687         if options.rebase is not None:
 688             rebase_tree(options.rebase)
 689         elif options.rebase_master:
 690             rebase_tree(samba_master)
 691         blist = BuildList(tasks, args)
 692         if options.tail:
 693             blist.start_tail()
 694         (exitcode, failed_task, failed_stage, failed_tag, errstr) = blist.run()
 695         if exitcode != 0 or errstr != "retry":
 696             break
 697         cleanup()
 698     except:
 699         cleanup()
 700         raise
 701
 702 blist.kill_kids()
 703 if options.tail:
 704     print("waiting for tail to flush")
 705     time.sleep(1)
 706
 707 if exitcode == 0:
 708     print errstr
 709     if options.passcmd is not None:
 710         print("Running passcmd: %s" % options.passcmd)
 711         run_cmd(options.passcmd, dir=test_master, shell=True)
 712     if options.pushto is not None:
 713         push_to(options.pushto)
 714     elif options.push_master:
 715         push_to(samba_master_ssh)
 716     if options.keeplogs:
 717         blist.tarlogs("logs.tar.gz")
 718         print("Logs in logs.tar.gz")
 719     if options.always_email:
 720         email_success(blist)
 721     blist.remove_logs()
 722     cleanup()
 723     print(errstr)
 724 else:
 725     # something failed, gather a tar of the logs
 726     blist.tarlogs("logs.tar.gz")
 727
 728     if options.email is not None:
 729         email_failure(blist, exitcode, failed_task, failed_stage, failed_tag,
 730             errstr)
 731
 732     cleanup()
 733     print(errstr)
 734     print("Logs in logs.tar.gz")
 735 sys.exit(exitcode)