tools/tesh/tesh.py

   1 #! @PYTHON_EXECUTABLE@
   2 # -*- coding: utf-8 -*-
   3 """
   4
   5 tesh -- testing shell
   6 ========================
   7
   8 Copyright (c) 2012-2023. The SimGrid Team. All rights reserved.
   9
  10 This program is free software; you can redistribute it and/or modify it
  11 under the terms of the license (GNU LGPL) which comes with this package.
  12
  13 #TODO: child of child of child that printfs. Does it work?
  14 #TODO: a child dies after its parent. What happen?
  15
  16 #TODO: regular expression in output
  17 #ex: >> Time taken: [0-9]+s
  18 #TODO: linked regular expression in output
  19 #ex:
  20 # >> Bytes sent: ([0-9]+)
  21 # >> Bytes recv: \1
  22 # then, even better:
  23 # ! expect (\1 > 500)
  24
  25 """
  26
  27 import sys
  28 import errno
  29 import os
  30 import shlex
  31 import re
  32 import difflib
  33 import signal
  34 import argparse
  35 import time
  36
  37 if sys.version_info[0] == 3:
  38     import subprocess
  39     import _thread
  40 else:
  41     raise RuntimeError("This program is expected to run with Python3 only")
  42
  43 ##############
  44 #
  45 # Utilities
  46 #
  47 #
  48
  49 def is_windows():
  50     """ Check if running on Windows """
  51     return sys.platform.startswith('win')
  52
  53 # Singleton metaclass that works in Python 2 & 3
  54 # http://stackoverflow.com/questions/6760685/creating-a-singleton-in-python
  55
  56 class _Singleton(type):
  57     """ A metaclass that creates a Singleton base class when called. """
  58     _instances = {}
  59
  60     def __call__(cls, *args, **kwargs):
  61         if cls not in cls._instances:
  62             cls._instances[cls] = super(_Singleton, cls).__call__(*args, **kwargs)
  63         return cls._instances[cls]
  64
  65 class Singleton(_Singleton('SingletonMeta', (object,), {})):
  66     """ The Singleton base class """
  67     # pass
  68
  69 SIGNALS_TO_NAMES_DICT = dict((getattr(signal, n), n)
  70                              for n in dir(signal) if n.startswith('SIG') and '_' not in n)
  71
  72 def tesh_exit(errcode):
  73     """ Exit correctly """
  74     # If you do not flush some prints are skipped
  75     sys.stdout.flush()
  76     # os._exit exit even when executed within a thread
  77     # pylint: disable=protected-access
  78     os._exit(errcode)
  79
  80
  81 def fatal_error(msg):
  82     """ Exit with error """
  83     print("[Tesh/CRITICAL] " + str(msg))
  84     tesh_exit(1)
  85
  86
  87 def setenv(arg):
  88     """
  89     Set an environment variable.
  90     arg must be a string with the format "variable=value"
  91     """
  92     print("[Tesh/INFO] setenv " + arg)
  93     (var, val) = arg.split("=", 1)
  94     os.environ[var] = val
  95     # os.putenv(var, val) does not work
  96     # see http://stackoverflow.com/questions/17705419/python-os-environ-os-putenv-usr-bin-env
  97
  98
  99 def expandvars2(path):
 100     """ http://stackoverflow.com/questions/30734967/how-to-expand-environment-variables-in-python-as-bash-does """
 101     return re.sub(r'(?<!\\)\$[A-Za-z_][A-Za-z0-9_]*', '', os.path.expandvars(path))
 102
 103 ##############
 104 #
 105 # Cleanup on signal
 106 #
 107 #
 108
 109 def process_is_dead(pid):
 110     """ Tests whether the process is dead already """
 111     try:
 112         os.kill(pid, 0)
 113     except ProcessLookupError:
 114         return True
 115     except OSError as err:
 116         if err.errno == errno.ESRCH: # ESRCH == No such process. The process is now dead
 117             return True
 118     return False
 119
 120 def kill_process_group(pid):
 121     """ This function send TERM signal + KILL signal after 0.2s to the group of the specified process """
 122     if pid is None:
 123         # Nobody to kill. We don't know who to kill on windows, or we don't have anyone to kill on signal handler
 124         return
 125
 126     try:
 127         pgid = os.getpgid(pid)
 128     except OSError:
 129         # os.getpgid failed. Ok, don't cleanup.
 130         return
 131
 132     try:
 133         os.killpg(pgid, signal.SIGTERM)
 134         if process_is_dead(pid):
 135             return
 136         time.sleep(0.2)
 137         os.killpg(pgid, signal.SIGKILL)
 138     except OSError:
 139         # os.killpg failed. OK. Some subprocesses may still be running.
 140         pass
 141
 142 def signal_handler(signo, _frame):
 143     """ Signal handler """
 144     print("Caught signal {}".format(SIGNALS_TO_NAMES_DICT[signo]))
 145     running_pids = TeshState().running_pids # Just in case of interthread conflicts.
 146     for pid in running_pids:
 147         kill_process_group(pid)
 148     TeshState().running_pids.clear()
 149     tesh_exit(5)
 150
 151
 152 ##############
 153 #
 154 # Classes
 155 #
 156 #
 157
 158
 159 class FileReader(Singleton):
 160     """ Read file line per line (and concat line that ends with "\") """
 161     def __init__(self, filename=None):
 162         if filename is None:
 163             self.filename = "(stdin)"
 164             self.fileno = sys.stdin
 165         else:
 166             self.filename_raw = filename
 167             self.filename = os.path.basename(filename)
 168             self.abspath = os.path.abspath(filename)
 169             self.fileno = open(self.filename_raw)
 170
 171         self.linenumber = 0
 172
 173     def __repr__(self):
 174         return self.filename + ":" + str(self.linenumber)
 175
 176     def readfullline(self):
 177         """ Read a full line """
 178         try:
 179             line = next(self.fileno)
 180             self.linenumber += 1
 181         except StopIteration:
 182             return None
 183         if line[-1] == "\n":
 184             txt = line[0:-1]
 185         else:
 186             txt = line
 187         while len(line) > 1 and line[-2] == "\\":
 188             txt = txt[0:-1]
 189             line = next(self.fileno)
 190             self.linenumber += 1
 191             txt += line[0:-1]
 192         return txt
 193
 194
 195 class TeshState(Singleton):
 196     """ Keep the state of tesh (mostly configuration values) """
 197     def __init__(self):
 198         self.running_pids = list() # stores which process group should be killed (or None otherwise)
 199         self.threads = []
 200         self.args_suffix = ""
 201         self.ignore_regexps_common = []
 202         self.jenkins = False  # not a Jenkins run by default
 203         self.timeout = 10  # default value: 10 sec
 204         self.wrapper = None
 205         self.keep = False
 206         self.return_code = 0
 207
 208     def add_thread(self, thread):
 209         """ Add another thread to wait for """
 210         self.threads.append(thread)
 211
 212     def join_all_threads(self):
 213         """ Wait for all threads """
 214         for thread in self.threads:
 215             thread.acquire()
 216             thread.release()
 217
 218     def set_return_code(self, value):
 219         """ Set exit status """
 220         if value > self.return_code:
 221             self.return_code = value
 222
 223
 224 class Cmd:
 225     """ Command line object """
 226     def __init__(self):
 227         self.input_pipe = []
 228         self.output_pipe_stdout = []
 229         self.output_pipe_stderr = []
 230         self.timeout = TeshState().timeout
 231         self.args = None
 232         self.linenumber = -1
 233
 234         self.background = False
 235         # Python threads loose the cwd
 236         self.cwd = os.getcwd()
 237
 238         self.ignore_output = False
 239         self.expect_return = [0]
 240
 241         self.output_display = False
 242
 243         self.sort = -1
 244
 245         self.ignore_regexps = TeshState().ignore_regexps_common
 246
 247     def add_input_pipe(self, line):
 248         """ Add a line to stdin input """
 249         self.input_pipe.append(line)
 250
 251     def add_output_pipe_stdout(self, line):
 252         """ Add a line to stdout output """
 253         self.output_pipe_stdout.append(line)
 254
 255     def add_output_pipe_stderr(self, line):
 256         """ Add a line to stderr output """
 257         self.output_pipe_stderr.append(line)
 258
 259     def set_cmd(self, args, linenumber):
 260         """ Set command line """
 261         self.args = args
 262         self.linenumber = linenumber
 263
 264     def add_ignore(self, txt):
 265         """ Add regexp to ignore lines """
 266         self.ignore_regexps.append(re.compile(txt))
 267
 268     def remove_ignored_lines(self, lines):
 269         """ Remove ignored lines """
 270         for ign in self.ignore_regexps:
 271             lines = [l for l in lines if not ign.match(l)]
 272         return lines
 273
 274     def _cmd_mkfile(self, argline):
 275         filename = argline[len("mkfile "):]
 276         file = open(filename, "w")
 277         if file is None:
 278             fatal_error("Unable to create file " + filename)
 279         file.write("\n".join(self.input_pipe))
 280         file.write("\n")
 281         file.close()
 282
 283     def _cmd_cd(self, argline): # pylint: disable=no-self-use
 284         args = shlex.split(argline)
 285         if len(args) != 2:
 286             fatal_error("Too many arguments to cd")
 287         try:
 288             os.chdir(args[1])
 289             print("[Tesh/INFO] change directory to " + args[1])
 290         except FileNotFoundError:
 291             print("Chdir to " + args[1] + " failed: No such file or directory")
 292             print("Test suite `" + FileReader().filename + "': NOK (system error)")
 293             tesh_exit(4)
 294
 295     def run_if_possible(self):
 296         """
 297         Run the Cmd if possible.
 298         Return False if nothing has been ran.
 299         """
 300         if not self.can_run():
 301             return False
 302         if self.background:
 303             lock = _thread.allocate_lock()
 304             lock.acquire()
 305             TeshState().add_thread(lock)
 306             _thread.start_new_thread(Cmd._run, (self, lock))
 307         else:
 308             self._run()
 309         return True
 310
 311     def _run(self, lock=None):
 312         # Python threads loose the cwd
 313         os.chdir(self.cwd)
 314
 315         # retrocompatibility: support ${aaa:=.} variable format
 316         def replace_perl_variables(arg):
 317             vname = arg.group(1)
 318             vdefault = arg.group(2)
 319             if vname in os.environ:
 320                 return "$" + vname
 321             return vdefault
 322
 323         self.args = re.sub(r"\${(\w+):=([^}]*)}", replace_perl_variables, self.args)
 324
 325         # replace bash environment variables ($THINGS) to their values
 326         self.args = expandvars2(self.args)
 327
 328         if re.match("^mkfile ", self.args) is not None:
 329             self._cmd_mkfile(self.args)
 330             if lock is not None:
 331                 lock.release()
 332             return
 333
 334         if re.match("^cd ", self.args) is not None:
 335             self._cmd_cd(self.args)
 336             if lock is not None:
 337                 lock.release()
 338             return
 339
 340         if TeshState().wrapper is not None:
 341             self.timeout *= 20
 342             self.args = TeshState().wrapper + self.args
 343         elif re.match(".*smpirun.*", self.args) is not None:
 344             self.args = "sh " + self.args
 345         if TeshState().jenkins and self.timeout is not None:
 346             self.timeout *= 10
 347
 348         self.args += TeshState().args_suffix
 349
 350         logs = list()
 351         logs.append("[{file}:{number}] {args}".format(file=FileReader().filename,
 352                                                       number=self.linenumber, args=self.args))
 353
 354         args = shlex.split(self.args)
 355
 356         local_pid = None
 357
 358         try:
 359             preexec_function = None
 360             if not is_windows():
 361                 preexec_function = lambda: os.setpgid(0, 0)
 362             proc = subprocess.Popen( # pylint: disable=subprocess-popen-preexec-fn
 363                 args,
 364                 bufsize=1,
 365                 stdin=subprocess.PIPE,
 366                 stdout=subprocess.PIPE,
 367                 stderr=subprocess.STDOUT,
 368                 universal_newlines=True,
 369                 preexec_fn=preexec_function)
 370             if not is_windows():
 371                 local_pid = proc.pid
 372                 TeshState().running_pids.append(local_pid)
 373         except PermissionError:
 374             logs.append("[{file}:{number}] Cannot start '{cmd}': The binary is not executable.".format(
 375                 file=FileReader().filename, number=self.linenumber, cmd=args[0]))
 376             logs.append("[{file}:{number}] Current dir: {dir}".format(file=FileReader().filename,
 377                                                                       number=self.linenumber, dir=os.getcwd()))
 378             TeshState().set_return_code(3)
 379             print('\n'.join(logs))
 380             return
 381         except NotADirectoryError:
 382             logs.append("[{file}:{number}] Cannot start '{cmd}': The path to binary does not exist.".format(
 383                 file=FileReader().filename, number=self.linenumber, cmd=args[0]))
 384             logs.append("[{file}:{number}] Current dir: {dir}".format(file=FileReader().filename,
 385                                                                       number=self.linenumber, dir=os.getcwd()))
 386             TeshState().set_return_code(3)
 387             print('\n'.join(logs))
 388             return
 389         except FileNotFoundError:
 390             logs.append("[{file}:{number}] Cannot start '{cmd}': File not found.".format(
 391                 file=FileReader().filename, number=self.linenumber, cmd=args[0]))
 392             TeshState().set_return_code(3)
 393             print('\n'.join(logs))
 394             return
 395         except OSError as err:
 396             if err.errno == 8:
 397                 err.strerror += \
 398                     "\nOSError: [Errno 8] Executed scripts should start with shebang line (like #!/usr/bin/env sh)"
 399             raise err
 400
 401         cmd_name = FileReader().filename + ":" + str(self.linenumber)
 402         try:
 403             (stdout_data, _stderr_data) = proc.communicate("\n".join(self.input_pipe), self.timeout)
 404             timeout_reached = False
 405         except subprocess.TimeoutExpired:
 406             timeout_reached = True
 407             logs.append("Test suite `{file}': NOK (<{cmd}> timeout after {timeout} sec)".format(
 408                 file=FileReader().filename, cmd=cmd_name, timeout=self.timeout))
 409             TeshState().running_pids.remove(local_pid)
 410             kill_process_group(local_pid)
 411             # Try to get the output of the timeout process, to help in debugging.
 412             try:
 413                 (stdout_data, _stderr_data) = proc.communicate(timeout=1)
 414             except subprocess.TimeoutExpired:
 415                 logs.append("[{file}:{number}] Could not retrieve output. Killing the process group failed?".format(
 416                     file=FileReader().filename, number=self.linenumber))
 417                 TeshState().set_return_code(3)
 418                 print('\n'.join(logs))
 419                 return
 420
 421         if self.output_display:
 422             logs.append(str(stdout_data))
 423
 424         # remove text colors
 425         ansi_escape = re.compile(r'\x1b[^m]*m')
 426         stdout_data = ansi_escape.sub('', stdout_data)
 427
 428         if self.ignore_output:
 429             logs.append("(ignoring the output of <{cmd}> as requested)".format(cmd=cmd_name))
 430         else:
 431             stdouta = stdout_data.split("\n")
 432             stdouta = self.remove_ignored_lines(stdouta)
 433             while stdouta and stdouta[-1] == "":
 434                 del stdouta[-1]
 435             stdcpy = stdouta[:]
 436
 437             # Mimic the "sort" bash command, which is case unsensitive.
 438             if self.sort == 0:
 439                 stdouta.sort(key=lambda x: x.lower())
 440                 self.output_pipe_stdout.sort(key=lambda x: x.lower())
 441             elif self.sort > 0:
 442                 stdouta.sort(key=lambda x: x[:self.sort].lower())
 443                 self.output_pipe_stdout.sort(key=lambda x: x[:self.sort].lower())
 444
 445             diff = list(
 446                 difflib.unified_diff(
 447                     self.output_pipe_stdout,
 448                     stdouta,
 449                     lineterm="",
 450                     fromfile='expected',
 451                     tofile='obtained'))
 452             if diff:
 453                 logs.append("Output of <{cmd}> mismatch:".format(cmd=cmd_name))
 454                 if self.sort >= 0:  # If sorted, truncate the diff output and show the unsorted version
 455                     difflen = 0
 456                     for line in diff:
 457                         if difflen < 50:
 458                             print(line)
 459                         difflen += 1
 460                     if difflen > 50:
 461                         logs.append("(diff truncated after 50 lines)")
 462                     logs.append("Unsorted observed output:\n")
 463                     for line in stdcpy:
 464                         logs.append(line)
 465                 else:  # If not sorted, just display the diff
 466                     for line in diff:
 467                         logs.append(line)
 468
 469                 logs.append("Test suite `{file}': NOK (<{cmd}> output mismatch)".format(
 470                     file=FileReader().filename, cmd=cmd_name))
 471                 if lock is not None:
 472                     lock.release()
 473                 if TeshState().keep:
 474                     file = open('obtained', 'w')
 475                     obtained = stdout_data.split("\n")
 476                     while obtained and obtained[-1] == "":
 477                         del obtained[-1]
 478                     obtained = self.remove_ignored_lines(obtained)
 479                     for line in obtained:
 480                         file.write("> " + line + "\n")
 481                     file.close()
 482                     logs.append("Obtained output kept as requested: {path}".format(path=os.path.abspath("obtained")))
 483                 TeshState().set_return_code(2)
 484                 print('\n'.join(logs))
 485                 return
 486
 487         if timeout_reached:
 488             TeshState().set_return_code(3)
 489             print('\n'.join(logs))
 490             return
 491
 492         if not proc.returncode in self.expect_return:
 493             if proc.returncode >= 0:
 494                 logs.append("Test suite `{file}': NOK (<{cmd}> returned code {code})".format(
 495                     file=FileReader().filename, cmd=cmd_name, code=proc.returncode))
 496                 if lock is not None:
 497                     lock.release()
 498                 TeshState().set_return_code(2)
 499                 print('\n'.join(logs))
 500                 return
 501
 502             logs.append("Test suite `{file}': NOK (<{cmd}> got signal {sig})".format(
 503                 file=FileReader().filename, cmd=cmd_name,
 504                 sig=SIGNALS_TO_NAMES_DICT[-proc.returncode]))
 505             if lock is not None:
 506                 lock.release()
 507             TeshState().set_return_code(max(-proc.returncode, 1))
 508             print('\n'.join(logs))
 509             return
 510
 511         if lock is not None:
 512             lock.release()
 513
 514         print('\n'.join(logs))
 515
 516     def can_run(self):
 517         """ Check if ready to run """
 518         return self.args is not None
 519
 520 ##############
 521 #
 522 # Main
 523 #
 524 #
 525
 526 def main():
 527     """ main function """
 528     signal.signal(signal.SIGINT, signal_handler)
 529     signal.signal(signal.SIGTERM, signal_handler)
 530
 531     parser = argparse.ArgumentParser(description='tesh -- testing shell')
 532     group1 = parser.add_argument_group('Options')
 533     group1.add_argument('teshfile', nargs='?', help='Name of teshfile, stdin if omitted')
 534     group1.add_argument(
 535         '--cd',
 536         metavar='some/directory',
 537         help='ask tesh to switch the working directory before launching the tests')
 538     group1.add_argument('--setenv', metavar='var=value', action='append', help='set a specific environment variable')
 539     group1.add_argument('--cfg', metavar='arg', action='append', help='add parameter --cfg=arg to each command line')
 540     group1.add_argument('--log', metavar='arg', action='append', help='add parameter --log=arg to each command line')
 541     group1.add_argument(
 542         '--ignore-jenkins',
 543         action='store_true',
 544         help='ignore all cruft generated on SimGrid continuous integration servers')
 545     group1.add_argument('--wrapper', metavar='arg', help='Run each command in the provided wrapper (eg valgrind)')
 546     group1.add_argument(
 547         '--keep',
 548         action='store_true',
 549         help='Keep the obtained output when it does not match the expected one')
 550
 551     options = parser.parse_args()
 552
 553     if options.cd is not None:
 554         print("[Tesh/INFO] change directory to " + options.cd)
 555         os.chdir(options.cd)
 556
 557     if options.ignore_jenkins:
 558         print("Ignore all cruft seen on SimGrid's continuous integration servers")
 559         # Note: regexps should match at the beginning of lines
 560         TeshState().ignore_regexps_common = [
 561             re.compile(r"profiling:"),
 562             re.compile(r"Unable to clean temporary file C:"),
 563             re.compile(r".*Configuration change: Set 'contexts/"),
 564             re.compile(r"Picked up JAVA_TOOL_OPTIONS: "),
 565             re.compile(r"Picked up _JAVA_OPTIONS: "),
 566             re.compile(r"==[0-9]+== ?WARNING: ASan doesn't fully support"),
 567             re.compile(r"==[0-9]+== ?WARNING: ASan is ignoring requested __asan_handle_no_return: stack "),
 568             re.compile(r"False positive error reports may follow"),
 569             re.compile(r"For details see http://code\.google\.com/p/address-sanitizer/issues/detail\?id=189"),
 570             re.compile(r"For details see https://github\.com/google/sanitizers/issues/189"),
 571             re.compile(r"Python runtime initialized with LC_CTYPE=C .*"),
 572             # Seen on CircleCI
 573             re.compile(r"cmake: /usr/local/lib/libcurl\.so\.4: no version information available \(required by cmake\)"),
 574             re.compile(
 575                 r".*mmap broken on FreeBSD, but dlopen\+thread broken too\. Switching to dlopen\+raw contexts\."),
 576             re.compile(r".*dlopen\+thread broken on Apple and BSD\. Switching to raw contexts\."),
 577         ]
 578         TeshState().jenkins = True  # This is a Jenkins build
 579
 580     if options.teshfile is None:
 581         file = FileReader(None)
 582         print("Test suite from stdin")
 583     else:
 584         if not os.path.isfile(options.teshfile):
 585             print("Cannot open teshfile '" + options.teshfile + "': File not found")
 586             tesh_exit(3)
 587         file = FileReader(options.teshfile)
 588         print("Test suite '" + file.abspath + "'")
 589
 590     if options.setenv is not None:
 591         for env in options.setenv:
 592             setenv(env)
 593
 594     if options.cfg is not None:
 595         for cfg in options.cfg:
 596             TeshState().args_suffix += " --cfg=" + cfg
 597     if options.log is not None:
 598         for log in options.log:
 599             TeshState().args_suffix += " --log=" + log
 600
 601     if options.wrapper is not None:
 602         TeshState().wrapper = options.wrapper
 603
 604     if options.keep:
 605         TeshState().keep = True
 606
 607     # cmd holds the current command line
 608     # tech commands will add some parameters to it
 609     # when ready, we execute it.
 610     cmd = Cmd()
 611
 612     line = file.readfullline()
 613     while line is not None:
 614         # print(">>============="+line+"==<<")
 615         if not line:
 616             #print ("END CMD block")
 617             if cmd.run_if_possible():
 618                 cmd = Cmd()
 619
 620         elif line[0] == "#":
 621             pass
 622
 623         elif line[0:2] == "p ":
 624             print("[" + str(FileReader()) + "] " + line[2:])
 625
 626         elif line[0:2] == "< ":
 627             cmd.add_input_pipe(line[2:])
 628         elif line[0:1] == "<":
 629             cmd.add_input_pipe(line[1:])
 630
 631         elif line[0:2] == "> ":
 632             cmd.add_output_pipe_stdout(line[2:])
 633         elif line[0:1] == ">":
 634             cmd.add_output_pipe_stdout(line[1:])
 635
 636         elif line[0:2] == "$ ":
 637             if cmd.run_if_possible():
 638                 cmd = Cmd()
 639             cmd.set_cmd(line[2:], file.linenumber)
 640
 641         elif line[0:2] == "& ":
 642             if cmd.run_if_possible():
 643                 cmd = Cmd()
 644             cmd.set_cmd(line[2:], file.linenumber)
 645             cmd.background = True
 646
 647         elif line[0:15] == "! output ignore":
 648             cmd.ignore_output = True
 649             #print("cmd.ignore_output = True")
 650         elif line[0:16] == "! output display":
 651             cmd.output_display = True
 652             cmd.ignore_output = True
 653         elif line[0:15] == "! expect return":
 654             cmd.expect_return = [int(line[16:])]
 655             #print("expect return "+str(int(line[16:])))
 656         elif line[0:15] == "! expect signal":
 657             cmd.expect_return = []
 658             for sig in (line[16:]).split("|"):
 659                 # get the signal integer value from the signal module
 660                 if sig not in signal.__dict__:
 661                     fatal_error("unrecognized signal '" + sig + "'")
 662                 sig = int(signal.__dict__[sig])
 663                 # popen return -signal when a process ends with a signal
 664                 cmd.expect_return.append(-sig)
 665         elif line[0:len("! timeout ")] == "! timeout ":
 666             if "no" in line[len("! timeout "):]:
 667                 cmd.timeout = None
 668             else:
 669                 cmd.timeout = int(line[len("! timeout "):])
 670
 671         elif line[0:len("! output sort")] == "! output sort":
 672             if len(line) >= len("! output sort "):
 673                 sort = int(line[len("! output sort "):])
 674             else:
 675                 sort = 0
 676             cmd.sort = sort
 677         elif line[0:len("! setenv ")] == "! setenv ":
 678             setenv(line[len("! setenv "):])
 679
 680         elif line[0:len("! ignore ")] == "! ignore ":
 681             cmd.add_ignore(line[len("! ignore "):])
 682
 683         else:
 684             fatal_error("UNRECOGNIZED OPTION")
 685
 686         line = file.readfullline()
 687
 688     cmd.run_if_possible()
 689
 690     TeshState().join_all_threads()
 691
 692     if TeshState().return_code == 0:
 693         if file.filename == "(stdin)":
 694             print("Test suite from stdin OK")
 695         else:
 696             print("Test suite `" + file.filename + "' OK")
 697     tesh_exit(TeshState().return_code)
 698
 699 if __name__ == '__main__':
 700     main()