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