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