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