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
  12 samba_master = os.getenv('SAMBA_MASTER', 'git://git.samba.org/samba.git')
  13 samba_master_ssh = os.getenv('SAMBA_MASTER_SSH', 'git+ssh://git.samba.org/data/git/samba.git')
  14
  15 cleanup_list = []
  16
  17 os.putenv('CC', "ccache gcc")
  18
  19 builddirs = {
  20     "samba3"  : "source3",
  21     "samba4"  : ".",
  22     "ldb"     : "source4/lib/ldb",
  23     "tdb"     : "lib/tdb",
  24     "talloc"  : "lib/talloc",
  25     "replace" : "lib/replace",
  26     "tevent"  : "lib/tevent",
  27     "pidl"    : "pidl",
  28     "pass"    : ".",
  29     "fail"    : ".",
  30     "retry"   : "."
  31     }
  32
  33 defaulttasks = [ "samba3", "samba4", "ldb", "tdb", "talloc", "replace", "tevent", "pidl" ]
  34
  35 tasks = {
  36     "samba3" : [ ("autogen", "./autogen.sh", "text/plain"),
  37                  ("configure", "./configure.developer ${PREFIX}", "text/plain"),
  38                  ("make basics", "make basics", "text/plain"),
  39                  ("make", "make -j 4 everything", "text/plain"), # don't use too many processes
  40                  ("install", "make install", "text/plain"),
  41                  ("test", "TDB_NO_FSYNC=1 make test FAIL_IMMEDIATELY=1", "text/plain"),
  42                  ("check-clean-tree", "../script/clean-source-tree.sh", "text/plain"),
  43                  ("clean", "make clean", "text/plain") ],
  44
  45     # We have 'test' before 'install' because, 'test' should work without 'install'
  46     "samba4" : [ ("configure", "./configure.developer ${PREFIX}", "text/plain"),
  47                  ("make", "make -j", "text/plain"),
  48                  ("test", "TDB_NO_FSYNC=1 make test FAIL_IMMEDIATELY=1", "text/plain"),
  49                  ("install", "make install", "text/plain"),
  50                  ("check-clean-tree", "script/clean-source-tree.sh", "text/plain"),
  51                  ("clean", "make clean", "text/plain") ],
  52
  53     "ldb" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  54               ("make", "make -j", "text/plain"),
  55               ("install", "make install", "text/plain"),
  56               ("test", "TDB_NO_FSYNC=1 make test", "text/plain"),
  57               ("check-clean-tree", "../../../script/clean-source-tree.sh", "text/plain"),
  58               ("distcheck", "make distcheck", "text/plain"),
  59               ("clean", "make clean", "text/plain") ],
  60
  61     # We don't use TDB_NO_FSYNC=1 here, because we want to test the transaction code
  62     "tdb" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  63               ("make", "make -j", "text/plain"),
  64               ("install", "make install", "text/plain"),
  65               ("test", "make test", "text/plain"),
  66               ("check-clean-tree", "../../script/clean-source-tree.sh", "text/plain"),
  67               ("distcheck", "make distcheck", "text/plain"),
  68               ("clean", "make clean", "text/plain") ],
  69
  70     "talloc" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  71                  ("make", "make -j", "text/plain"),
  72                  ("install", "make install", "text/plain"),
  73                  ("test", "make test", "text/plain"),
  74                  ("check-clean-tree", "../../script/clean-source-tree.sh", "text/plain"),
  75                  ("distcheck", "make distcheck", "text/plain"),
  76                  ("clean", "make clean", "text/plain") ],
  77
  78     "replace" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  79                   ("make", "make -j", "text/plain"),
  80                   ("install", "make install", "text/plain"),
  81                   ("test", "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     "tevent" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
  87                  ("make", "make -j", "text/plain"),
  88                  ("install", "make install", "text/plain"),
  89                  ("test", "make test", "text/plain"),
  90                  ("check-clean-tree", "../../script/clean-source-tree.sh", "text/plain"),
  91                  ("distcheck", "make distcheck", "text/plain"),
  92                  ("clean", "make clean", "text/plain") ],
  93
  94     "pidl" : [ ("configure", "perl Makefile.PL PREFIX=${PREFIX_DIR}", "text/plain"),
  95                ("touch", "touch *.yp", "text/plain"),
  96                ("make", "make", "text/plain"),
  97                ("test", "make test", "text/plain"),
  98                ("install", "make install", "text/plain"),
  99                ("check-clean-tree", "../script/clean-source-tree.sh", "text/plain"),
 100                ("clean", "make clean", "text/plain") ],
 101
 102     # these are useful for debugging autobuild
 103     'pass' : [ ("pass", 'echo passing && /bin/true', "text/plain") ],
 104     'fail' : [ ("fail", 'echo failing && /bin/false', "text/plain") ]
 105 }
 106
 107 retry_task = [ ( "retry",
 108                  '''set -e
 109                 git remote add -t master master %s
 110                 git fetch master
 111                 while :; do
 112                   sleep 60
 113                   git describe master/master > old_master.desc
 114                   git fetch master
 115                   git describe master/master > master.desc
 116                   diff old_master.desc master.desc
 117                 done
 118                ''' % samba_master, "test/plain" ) ]
 119
 120 def run_cmd(cmd, dir=".", show=None, output=False, checkfail=True):
 121     if show is None:
 122         show = options.verbose
 123     if show:
 124         print("Running: '%s' in '%s'" % (cmd, dir))
 125     if output:
 126         return Popen([cmd], shell=True, stdout=PIPE, cwd=dir).communicate()[0]
 127     elif checkfail:
 128         return check_call(cmd, shell=True, cwd=dir)
 129     else:
 130         return call(cmd, shell=True, cwd=dir)
 131
 132
 133 class builder(object):
 134     '''handle build of one directory'''
 135
 136     def __init__(self, name, sequence):
 137         self.name = name
 138         self.dir = builddirs[name]
 139
 140         self.tag = self.name.replace('/', '_')
 141         self.sequence = sequence
 142         self.next = 0
 143         self.stdout_path = "%s/%s.stdout" % (gitroot, self.tag)
 144         self.stderr_path = "%s/%s.stderr" % (gitroot, self.tag)
 145         if options.verbose:
 146             print("stdout for %s in %s" % (self.name, self.stdout_path))
 147             print("stderr for %s in %s" % (self.name, self.stderr_path))
 148         run_cmd("rm -f %s %s" % (self.stdout_path, self.stderr_path))
 149         self.stdout = open(self.stdout_path, 'w')
 150         self.stderr = open(self.stderr_path, 'w')
 151         self.stdin  = open("/dev/null", 'r')
 152         self.sdir = "%s/%s" % (testbase, self.tag)
 153         self.prefix = "%s/prefix/%s" % (testbase, self.tag)
 154         run_cmd("rm -rf %s" % self.sdir)
 155         cleanup_list.append(self.sdir)
 156         cleanup_list.append(self.prefix)
 157         os.makedirs(self.sdir)
 158         run_cmd("rm -rf %s" % self.sdir)
 159         run_cmd("git clone --shared %s %s" % (test_master, self.sdir), dir=test_master, show=True)
 160         self.start_next()
 161
 162     def start_next(self):
 163         if self.next == len(self.sequence):
 164             print '%s: Completed OK' % self.name
 165             self.done = True
 166             return
 167         (self.stage, self.cmd, self.output_mime_type) = self.sequence[self.next]
 168         self.cmd = self.cmd.replace("${PREFIX}", "--prefix=%s" % self.prefix)
 169         self.cmd = self.cmd.replace("${PREFIX_DIR}", "%s" % self.prefix)
 170 #        if self.output_mime_type == "text/x-subunit":
 171 #            self.cmd += " | %s --immediate" % (os.path.join(os.path.dirname(__file__), "selftest/format-subunit"))
 172         print '%s: [%s] Running %s' % (self.name, self.stage, self.cmd)
 173         cwd = os.getcwd()
 174         os.chdir("%s/%s" % (self.sdir, self.dir))
 175         self.proc = Popen(self.cmd, shell=True,
 176                           stdout=self.stdout, stderr=self.stderr, stdin=self.stdin)
 177         os.chdir(cwd)
 178         self.next += 1
 179
 180
 181 class buildlist(object):
 182     '''handle build of multiple directories'''
 183
 184     def __init__(self, tasklist, tasknames):
 185         global tasks
 186         self.tlist = []
 187         self.tail_proc = None
 188         self.retry = None
 189         if tasknames == []:
 190             tasknames = defaulttasks
 191         for n in tasknames:
 192             b = builder(n, tasks[n])
 193             self.tlist.append(b)
 194         if options.retry:
 195             self.retry = builder('retry', retry_task)
 196             self.need_retry = False
 197
 198     def kill_kids(self):
 199         if self.tail_proc is not None:
 200             self.tail_proc.terminate()
 201             self.tail_proc.wait()
 202             self.tail_proc = None
 203         if self.retry is not None:
 204             self.retry.proc.terminate()
 205             self.retry.proc.wait()
 206             self.retry = None
 207         for b in self.tlist:
 208             if b.proc is not None:
 209                 run_cmd("killbysubdir %s > /dev/null 2>&1" % b.sdir, checkfail=False)
 210                 b.proc.terminate()
 211                 b.proc.wait()
 212                 b.proc = None
 213
 214     def wait_one(self):
 215         while True:
 216             none_running = True
 217             for b in self.tlist:
 218                 if b.proc is None:
 219                     continue
 220                 none_running = False
 221                 b.status = b.proc.poll()
 222                 if b.status is None:
 223                     continue
 224                 b.proc = None
 225                 return b
 226             if options.retry:
 227                 ret = self.retry.proc.poll()
 228                 if ret is not None:
 229                     self.need_retry = True
 230                     self.retry = None
 231                     return None
 232             if none_running:
 233                 return None
 234             time.sleep(0.1)
 235
 236     def run(self):
 237         while True:
 238             b = self.wait_one()
 239             if options.retry and self.need_retry:
 240                 self.kill_kids()
 241                 print("retry needed")
 242                 return (0, None, None, None, "retry")
 243             if b is None:
 244                 break
 245             if os.WIFSIGNALED(b.status) or os.WEXITSTATUS(b.status) != 0:
 246                 self.kill_kids()
 247                 return (b.status, b.name, b.stage, b.tag, "%s: [%s] failed '%s' with status %d" % (b.name, b.stage, b.cmd, b.status))
 248             b.start_next()
 249         self.kill_kids()
 250         return (0, None, None, None, "All OK")
 251
 252     def tarlogs(self, fname):
 253         tar = tarfile.open(fname, "w:gz")
 254         for b in self.tlist:
 255             tar.add(b.stdout_path, arcname="%s.stdout" % b.tag)
 256             tar.add(b.stderr_path, arcname="%s.stderr" % b.tag)
 257         if os.path.exists("autobuild.log"):
 258             tar.add("autobuild.log")
 259         tar.close()
 260
 261     def remove_logs(self):
 262         for b in self.tlist:
 263             os.unlink(b.stdout_path)
 264             os.unlink(b.stderr_path)
 265
 266     def start_tail(self):
 267         cwd = os.getcwd()
 268         cmd = "tail -f *.stdout *.stderr"
 269         os.chdir(gitroot)
 270         self.tail_proc = Popen(cmd, shell=True)
 271         os.chdir(cwd)
 272
 273
 274 def cleanup():
 275     if options.nocleanup:
 276         return
 277     print("Cleaning up ....")
 278     for d in cleanup_list:
 279         run_cmd("rm -rf %s" % d)
 280
 281
 282 def find_git_root():
 283     '''get to the top of the git repo'''
 284     p=os.getcwd()
 285     while p != '/':
 286         if os.path.isdir(os.path.join(p, ".git")):
 287             return p
 288         p = os.path.abspath(os.path.join(p, '..'))
 289     return None
 290
 291
 292 def daemonize(logfile):
 293     pid = os.fork()
 294     if pid == 0: # Parent
 295         os.setsid()
 296         pid = os.fork()
 297         if pid != 0: # Actual daemon
 298             os._exit(0)
 299     else: # Grandparent
 300         os._exit(0)
 301
 302     import resource      # Resource usage information.
 303     maxfd = resource.getrlimit(resource.RLIMIT_NOFILE)[1]
 304     if maxfd == resource.RLIM_INFINITY:
 305         maxfd = 1024 # Rough guess at maximum number of open file descriptors.
 306     for fd in range(0, maxfd):
 307         try:
 308             os.close(fd)
 309         except OSError:
 310             pass
 311     os.open(logfile, os.O_RDWR | os.O_CREAT)
 312     os.dup2(0, 1)
 313     os.dup2(0, 2)
 314
 315 def write_pidfile(fname):
 316     '''write a pid file, cleanup on exit'''
 317     f = open(fname, mode='w')
 318     f.write("%u\n" % os.getpid())
 319     f.close()
 320
 321
 322 def rebase_tree(url):
 323     print("Rebasing on %s" % url)
 324     run_cmd("git describe HEAD", show=True, dir=test_master)
 325     run_cmd("git remote add -t master master %s" % url, show=True, dir=test_master)
 326     run_cmd("git fetch master", show=True, dir=test_master)
 327     if options.fix_whitespace:
 328         run_cmd("git rebase --whitespace=fix master/master", show=True, dir=test_master)
 329     else:
 330         run_cmd("git rebase master/master", show=True, dir=test_master)
 331     diff = run_cmd("git --no-pager diff HEAD master/master", dir=test_master, output=True)
 332     if diff == '':
 333         print("No differences between HEAD and master/master - exiting")
 334         sys.exit(0)
 335     run_cmd("git describe master/master", show=True, dir=test_master)
 336     run_cmd("git describe HEAD", show=True, dir=test_master)
 337     run_cmd("git --no-pager diff --stat HEAD master/master", show=True, dir=test_master)
 338
 339 def push_to(url):
 340     print("Pushing to %s" % url)
 341     if options.mark:
 342         run_cmd("git config --replace-all core.editor script/commit_mark.sh", dir=test_master)
 343         run_cmd("git commit --amend -c HEAD", dir=test_master)
 344         # the notes method doesn't work yet, as metze hasn't allowed refs/notes/* in master
 345         # run_cmd("EDITOR=script/commit_mark.sh git notes edit HEAD", dir=test_master)
 346     run_cmd("git remote add -t master pushto %s" % url, show=True, dir=test_master)
 347     run_cmd("git push pushto +HEAD:master", show=True, dir=test_master)
 348
 349 def_testbase = os.getenv("AUTOBUILD_TESTBASE", "/memdisk/%s" % os.getenv('USER'))
 350
 351 parser = OptionParser()
 352 parser.add_option("", "--tail", help="show output while running", default=False, action="store_true")
 353 parser.add_option("", "--keeplogs", help="keep logs", default=False, action="store_true")
 354 parser.add_option("", "--nocleanup", help="don't remove test tree", default=False, action="store_true")
 355 parser.add_option("", "--testbase", help="base directory to run tests in (default %s)" % def_testbase,
 356                   default=def_testbase)
 357 parser.add_option("", "--passcmd", help="command to run on success", default=None)
 358 parser.add_option("", "--verbose", help="show all commands as they are run",
 359                   default=False, action="store_true")
 360 parser.add_option("", "--rebase", help="rebase on the given tree before testing",
 361                   default=None, type='str')
 362 parser.add_option("", "--rebase-master", help="rebase on %s before testing" % samba_master,
 363                   default=False, action='store_true')
 364 parser.add_option("", "--pushto", help="push to a git url on success",
 365                   default=None, type='str')
 366 parser.add_option("", "--push-master", help="push to %s on success" % samba_master_ssh,
 367                   default=False, action='store_true')
 368 parser.add_option("", "--mark", help="add a Tested-By signoff before pushing",
 369                   default=False, action="store_true")
 370 parser.add_option("", "--fix-whitespace", help="fix whitespace on rebase",
 371                   default=False, action="store_true")
 372 parser.add_option("", "--retry", help="automatically retry if master changes",
 373                   default=False, action="store_true")
 374 parser.add_option("", "--email", help="send email to the given address on failure",
 375                   type='str', default=None)
 376 parser.add_option("", "--always-email", help="always send email, even on success",
 377                   action="store_true")
 378 parser.add_option("", "--daemon", help="daemonize after initial setup",
 379                   action="store_true")
 380
 381
 382 def email_failure(status, failed_task, failed_stage, failed_tag, errstr):
 383     '''send an email to options.email about the failure'''
 384     user = os.getenv("USER")
 385     text = '''
 386 Dear Developer,
 387
 388 Your autobuild failed when trying to test %s with the following error:
 389    %s
 390
 391 the autobuild has been abandoned. Please fix the error and resubmit.
 392
 393 A summary of the autobuild process is here:
 394
 395   http://git.samba.org/%s/samba-autobuild/autobuild.log
 396 ''' % (failed_task, errstr, user)
 397
 398     if failed_task != 'rebase':
 399         text += '''
 400 You can see logs of the failed task here:
 401
 402   http://git.samba.org/%s/samba-autobuild/%s.stdout
 403   http://git.samba.org/%s/samba-autobuild/%s.stderr
 404
 405 or you can get full logs of all tasks in this job here:
 406
 407   http://git.samba.org/%s/samba-autobuild/logs.tar.gz
 408
 409 The top commit for the tree that was built was:
 410
 411 %s
 412
 413 ''' % (user, failed_tag, user, failed_tag, user, top_commit_msg)
 414     msg = MIMEText(text)
 415     msg['Subject'] = 'autobuild failure for task %s during %s' % (failed_task, failed_stage)
 416     msg['From'] = 'autobuild@samba.org'
 417     msg['To'] = options.email
 418
 419     s = smtplib.SMTP()
 420     s.connect()
 421     s.sendmail(msg['From'], [msg['To']], msg.as_string())
 422     s.quit()
 423
 424 def email_success():
 425     '''send an email to options.email about a successful build'''
 426     user = os.getenv("USER")
 427     text = '''
 428 Dear Developer,
 429
 430 Your autobuild has succeeded.
 431
 432 '''
 433
 434     if options.keeplogs:
 435         text += '''
 436
 437 you can get full logs of all tasks in this job here:
 438
 439   http://git.samba.org/%s/samba-autobuild/logs.tar.gz
 440
 441 ''' % user
 442
 443     text += '''
 444 The top commit for the tree that was built was:
 445
 446 %s
 447 ''' % top_commit_msg
 448
 449     msg = MIMEText(text)
 450     msg['Subject'] = 'autobuild success'
 451     msg['From'] = 'autobuild@samba.org'
 452     msg['To'] = options.email
 453
 454     s = smtplib.SMTP()
 455     s.connect()
 456     s.sendmail(msg['From'], [msg['To']], msg.as_string())
 457     s.quit()
 458
 459
 460 (options, args) = parser.parse_args()
 461
 462 if options.retry:
 463     if not options.rebase_master and options.rebase is None:
 464         raise Exception('You can only use --retry if you also rebase')
 465
 466 testbase = "%s/b%u" % (options.testbase, os.getpid())
 467 test_master = "%s/master" % testbase
 468
 469 gitroot = find_git_root()
 470 if gitroot is None:
 471     raise Exception("Failed to find git root")
 472
 473 # get the top commit message, for emails
 474 top_commit_msg = run_cmd("git log -1", dir=gitroot, output=True)
 475
 476 try:
 477     os.makedirs(testbase)
 478 except Exception, reason:
 479     raise Exception("Unable to create %s : %s" % (testbase, reason))
 480 cleanup_list.append(testbase)
 481
 482 if options.daemon:
 483     logfile = os.path.join(testbase, "log")
 484     print "Forking into the background, writing progress to %s" % logfile
 485     daemonize(logfile)
 486
 487 write_pidfile(gitroot + "/autobuild.pid")
 488
 489 while True:
 490     try:
 491         run_cmd("rm -rf %s" % test_master)
 492         cleanup_list.append(test_master)
 493         run_cmd("git clone --shared %s %s" % (gitroot, test_master), show=True, dir=gitroot)
 494     except:
 495         cleanup()
 496         raise
 497
 498     try:
 499         try:
 500             if options.rebase is not None:
 501                 rebase_tree(options.rebase)
 502             elif options.rebase_master:
 503                 rebase_tree(samba_master)
 504         except:
 505             email_failure(-1, 'rebase', 'rebase', 'rebase', 'rebase on master failed')
 506             sys.exit(1)
 507         blist = buildlist(tasks, args)
 508         if options.tail:
 509             blist.start_tail()
 510         (status, failed_task, failed_stage, failed_tag, errstr) = blist.run()
 511         if status != 0 or errstr != "retry":
 512             break
 513         cleanup()
 514     except:
 515         cleanup()
 516         raise
 517
 518 cleanup_list.append(gitroot + "/autobuild.pid")
 519
 520 blist.kill_kids()
 521 if options.tail:
 522     print("waiting for tail to flush")
 523     time.sleep(1)
 524
 525 if status == 0:
 526     print errstr
 527     if options.passcmd is not None:
 528         print("Running passcmd: %s" % options.passcmd)
 529         run_cmd(options.passcmd, dir=test_master)
 530     if options.pushto is not None:
 531         push_to(options.pushto)
 532     elif options.push_master:
 533         push_to(samba_master_ssh)
 534     if options.keeplogs:
 535         blist.tarlogs("logs.tar.gz")
 536         print("Logs in logs.tar.gz")
 537     if options.always_email:
 538         email_success()
 539     blist.remove_logs()
 540     cleanup()
 541     print(errstr)
 542     sys.exit(0)
 543
 544 # something failed, gather a tar of the logs
 545 blist.tarlogs("logs.tar.gz")
 546
 547 if options.email is not None:
 548     email_failure(status, failed_task, failed_stage, failed_tag, errstr)
 549
 550 cleanup()
 551 print(errstr)
 552 print("Logs in logs.tar.gz")
 553 sys.exit(status)