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