1 import os, signal, subprocess, sys
11 class InternalShellError(Exception):
12 def __init__(self, command, message):
13 self.command = command
14 self.message = message
16 # Don't use close_fds on Windows.
17 kUseCloseFDs = platform.system() != 'Windows'
19 # Use temporary files to replace /dev/null on Windows.
20 kAvoidDevNull = platform.system() == 'Windows'
22 def executeCommand(command, cwd=None, env=None):
23 p = subprocess.Popen(command, cwd=cwd,
24 stdin=subprocess.PIPE,
25 stdout=subprocess.PIPE,
26 stderr=subprocess.PIPE,
28 out,err = p.communicate()
31 # Detect Ctrl-C in subprocess.
32 if exitCode == -signal.SIGINT:
33 raise KeyboardInterrupt
35 return out, err, exitCode
37 def executeShCmd(cmd, cfg, cwd, results):
38 if isinstance(cmd, ShUtil.Seq):
40 res = executeShCmd(cmd.lhs, cfg, cwd, results)
41 return executeShCmd(cmd.rhs, cfg, cwd, results)
44 raise NotImplementedError,"unsupported test command: '&'"
47 res = executeShCmd(cmd.lhs, cfg, cwd, results)
49 res = executeShCmd(cmd.rhs, cfg, cwd, results)
52 res = executeShCmd(cmd.lhs, cfg, cwd, results)
57 res = executeShCmd(cmd.rhs, cfg, cwd, results)
60 raise ValueError,'Unknown shell command: %r' % cmd.op
62 assert isinstance(cmd, ShUtil.Pipeline)
64 input = subprocess.PIPE
66 # To avoid deadlock, we use a single stderr stream for piped
67 # output. This is null until we have seen some output using
69 for i,j in enumerate(cmd.commands):
70 # Apply the redirections, we use (N,) as a sentinal to indicate stdin,
71 # stdout, stderr for N equal to 0, 1, or 2 respectively. Redirects to or
72 # from a file are represented with a list [file, mode, file-object]
73 # where file-object is initially None.
74 redirects = [(0,), (1,), (2,)]
77 redirects[2] = [r[1], 'w', None]
78 elif r[0] == ('>>',2):
79 redirects[2] = [r[1], 'a', None]
80 elif r[0] == ('>&',2) and r[1] in '012':
81 redirects[2] = redirects[int(r[1])]
82 elif r[0] == ('>&',) or r[0] == ('&>',):
83 redirects[1] = redirects[2] = [r[1], 'w', None]
85 redirects[1] = [r[1], 'w', None]
87 redirects[1] = [r[1], 'a', None]
89 redirects[0] = [r[1], 'r', None]
91 raise NotImplementedError,"Unsupported redirect: %r" % (r,)
93 # Map from the final redirections to something subprocess can handle.
95 for index,r in enumerate(redirects):
100 raise NotImplementedError,"Unsupported redirect for stdin"
102 result = subprocess.PIPE
104 result = subprocess.STDOUT
107 raise NotImplementedError,"Unsupported redirect on stdout"
108 result = subprocess.PIPE
111 if kAvoidDevNull and r[0] == '/dev/null':
112 r[2] = tempfile.TemporaryFile(mode=r[1])
114 r[2] = open(r[0], r[1])
115 # Workaround a Win32 and/or subprocess bug when appending.
119 final_redirects.append(result)
121 stdin, stdout, stderr = final_redirects
123 # If stderr wants to come from stdout, but stdout isn't a pipe, then put
124 # stderr on a pipe and treat it as stdout.
125 if (stderr == subprocess.STDOUT and stdout != subprocess.PIPE):
126 stderr = subprocess.PIPE
127 stderrIsStdout = True
129 stderrIsStdout = False
131 # Don't allow stderr on a PIPE except for the last
132 # process, this could deadlock.
134 # FIXME: This is slow, but so is deadlock.
135 if stderr == subprocess.PIPE and j != cmd.commands[-1]:
136 stderr = tempfile.TemporaryFile(mode='w+b')
137 stderrTempFiles.append((i, stderr))
139 # Resolve the executable path ourselves.
141 args[0] = Util.which(args[0], cfg.environment['PATH'])
143 raise InternalShellError(j, '%r: command not found' % j.args[0])
145 procs.append(subprocess.Popen(args, cwd=cwd,
149 env = cfg.environment,
150 close_fds = kUseCloseFDs))
152 # Immediately close stdin for any process taking stdin from us.
153 if stdin == subprocess.PIPE:
154 procs[-1].stdin.close()
155 procs[-1].stdin = None
157 # Update the current stdin source.
158 if stdout == subprocess.PIPE:
159 input = procs[-1].stdout
161 input = procs[-1].stderr
163 input = subprocess.PIPE
165 # FIXME: There is probably still deadlock potential here. Yawn.
166 procData = [None] * len(procs)
167 procData[-1] = procs[-1].communicate()
169 for i in range(len(procs) - 1):
170 if procs[i].stdout is not None:
171 out = procs[i].stdout.read()
174 if procs[i].stderr is not None:
175 err = procs[i].stderr.read()
178 procData[i] = (out,err)
180 # Read stderr out of the temp files.
181 for i,f in stderrTempFiles:
183 procData[i] = (procData[i][0], f.read())
186 for i,(out,err) in enumerate(procData):
187 res = procs[i].wait()
188 # Detect Ctrl-C in subprocess.
189 if res == -signal.SIGINT:
190 raise KeyboardInterrupt
192 results.append((cmd.commands[i], out, err, res))
194 # Python treats the exit code as a signed char.
196 exitCode = min(exitCode, res)
198 exitCode = max(exitCode, res)
203 exitCode = not exitCode
207 def executeScriptInternal(test, litConfig, tmpBase, commands, cwd):
208 ln = ' &&\n'.join(commands)
210 cmd = ShUtil.ShParser(ln, litConfig.isWindows).parse()
212 return (Test.FAIL, "shell parser error on: %r" % ln)
216 exitCode = executeShCmd(cmd, test.config, cwd, results)
217 except InternalShellError,e:
223 for i,(cmd, cmd_out,cmd_err,res) in enumerate(results):
224 out += 'Command %d: %s\n' % (i, ' '.join('"%s"' % s for s in cmd.args))
225 out += 'Command %d Result: %r\n' % (i, res)
226 out += 'Command %d Output:\n%s\n\n' % (i, cmd_out)
227 out += 'Command %d Stderr:\n%s\n\n' % (i, cmd_err)
229 return out, err, exitCode
231 def executeTclScriptInternal(test, litConfig, tmpBase, commands, cwd):
235 # Given the unfortunate way LLVM's test are written, the line gets
236 # backslash substitution done twice.
237 ln = TclUtil.TclLexer(ln).lex_unquoted(process_all = True)
240 tokens = list(TclUtil.TclLexer(ln).lex())
242 return (Test.FAIL, "Tcl lexer error on: %r" % ln)
244 # Validate there are no control tokens.
246 if not isinstance(t, str):
248 "Invalid test line: %r containing %r" % (ln, t))
251 cmds.append(TclUtil.TclExecCommand(tokens).parse_pipeline())
253 return (Test.FAIL, "Tcl 'exec' parse error on: %r" % ln)
255 if litConfig.useValgrind:
256 for pipeline in cmds:
257 if pipeline.commands:
258 # Only valgrind the first command in each pipeline, to avoid
259 # valgrinding things like grep, not, and FileCheck.
260 cmd = pipeline.commands[0]
261 cmd.args = litConfig.valgrindArgs + cmd.args
265 cmd = ShUtil.Seq(cmd, '&&', c)
267 # FIXME: This is lame, we shouldn't need bash. See PR5240.
268 bashPath = litConfig.getBashPath()
269 if litConfig.useTclAsSh and bashPath:
270 script = tmpBase + '.script'
274 print >>f, 'set -o pipefail'
275 cmd.toShell(f, pipefail = True)
279 print >>sys.stdout, cmd
280 print >>sys.stdout, open(script).read()
284 command = [litConfig.getBashPath(), script]
285 out,err,exitCode = executeCommand(command, cwd=cwd,
286 env=test.config.environment)
288 # Tcl commands fail on standard error output.
291 out = 'Command has output on stderr!\n\n' + out
293 return out,err,exitCode
297 exitCode = executeShCmd(cmd, test.config, cwd, results)
298 except InternalShellError,e:
299 results.append((e.command, '', e.message + '\n', 255))
304 # Tcl commands fail on standard error output.
305 if [True for _,_,err,res in results if err]:
307 out += 'Command has output on stderr!\n\n'
309 for i,(cmd, cmd_out, cmd_err, res) in enumerate(results):
310 out += 'Command %d: %s\n' % (i, ' '.join('"%s"' % s for s in cmd.args))
311 out += 'Command %d Result: %r\n' % (i, res)
312 out += 'Command %d Output:\n%s\n\n' % (i, cmd_out)
313 out += 'Command %d Stderr:\n%s\n\n' % (i, cmd_err)
315 return out, err, exitCode
317 def executeScript(test, litConfig, tmpBase, commands, cwd):
318 script = tmpBase + '.script'
319 if litConfig.isWindows:
324 if litConfig.isWindows:
325 f.write('\nif %ERRORLEVEL% NEQ 0 EXIT\n'.join(commands))
327 f.write(' &&\n'.join(commands))
331 if litConfig.isWindows:
332 command = ['cmd','/c', script]
334 command = ['/bin/sh', script]
335 if litConfig.useValgrind:
336 # FIXME: Running valgrind on sh is overkill. We probably could just
337 # run on clang with no real loss.
338 command = litConfig.valgrindArgs + command
340 return executeCommand(command, cwd=cwd, env=test.config.environment)
342 def isExpectedFail(xfails, xtargets, target_triple):
343 # Check if any xfail matches this target.
345 if item == '*' or item in target_triple:
350 # If so, see if it is expected to pass on this target.
352 # FIXME: Rename XTARGET to something that makes sense, like XPASS.
353 for item in xtargets:
354 if item == '*' or item in target_triple:
359 def parseIntegratedTestScript(test):
360 """parseIntegratedTestScript - Scan an LLVM/Clang style integrated test
361 script and extract the lines to 'RUN' as well as 'XFAIL' and 'XTARGET'
362 information. The RUN lines also will have variable substitution performed.
365 # Get the temporary location, this is always relative to the test suite
366 # root, not test source root.
368 # FIXME: This should not be here?
369 sourcepath = test.getSourcePath()
370 execpath = test.getExecPath()
371 execdir,execbase = os.path.split(execpath)
372 tmpBase = os.path.join(execdir, 'Output', execbase)
373 if test.index is not None:
374 tmpBase += '_%d' % test.index
376 # We use #_MARKER_# to hide %% while we do the other substitutions.
377 substitutions = [('%%', '#_MARKER_#')]
378 substitutions.extend(test.config.substitutions)
379 substitutions.extend([('%s', sourcepath),
380 ('%S', os.path.dirname(sourcepath)),
381 ('%p', os.path.dirname(sourcepath)),
382 ('%t', tmpBase + '.tmp'),
383 # FIXME: Remove this once we kill DejaGNU.
384 ('%abs_tmp', tmpBase + '.tmp'),
385 ('#_MARKER_#', '%')])
387 # Collect the test lines from the script.
391 for ln in open(sourcepath):
393 # Isolate the command to run.
394 index = ln.index('RUN:')
397 # Trim trailing whitespace.
400 # Collapse lines with trailing '\\'.
401 if script and script[-1][-1] == '\\':
402 script[-1] = script[-1][:-1] + ln
406 items = ln[ln.index('XFAIL:') + 6:].split(',')
407 xfails.extend([s.strip() for s in items])
408 elif 'XTARGET:' in ln:
409 items = ln[ln.index('XTARGET:') + 8:].split(',')
410 xtargets.extend([s.strip() for s in items])
412 # Check for END. lines.
413 if ln[ln.index('END.'):].strip() == 'END.':
416 # Apply substitutions to the script.
418 # Apply substitutions
419 for a,b in substitutions:
422 # Strip the trailing newline and any extra whitespace.
424 script = map(processLine, script)
426 # Verify the script contains a run line.
428 return (Test.UNRESOLVED, "Test has no run line!")
430 if script[-1][-1] == '\\':
431 return (Test.UNRESOLVED, "Test has unterminated run lines (with '\\')")
433 isXFail = isExpectedFail(xfails, xtargets, test.suite.config.target_triple)
434 return script,isXFail,tmpBase,execdir
436 def formatTestOutput(status, out, err, exitCode, script):
437 output = StringIO.StringIO()
438 print >>output, "Script:"
440 print >>output, '\n'.join(script)
442 print >>output, "Exit Code: %r" % exitCode
443 print >>output, "Command Output (stdout):"
447 print >>output, "Command Output (stderr):"
451 return (status, output.getvalue())
453 def executeTclTest(test, litConfig):
454 if test.config.unsupported:
455 return (Test.UNSUPPORTED, 'Test is unsupported')
457 res = parseIntegratedTestScript(test)
461 script, isXFail, tmpBase, execdir = res
463 if litConfig.noExecute:
464 return (Test.PASS, '')
466 # Create the output directory if it does not already exist.
467 Util.mkdir_p(os.path.dirname(tmpBase))
469 res = executeTclScriptInternal(test, litConfig, tmpBase, script, execdir)
473 out,err,exitCode = res
476 status = (Test.XPASS, Test.XFAIL)[ok]
479 status = (Test.FAIL, Test.PASS)[ok]
484 return formatTestOutput(status, out, err, exitCode, script)
486 def executeShTest(test, litConfig, useExternalSh):
487 if test.config.unsupported:
488 return (Test.UNSUPPORTED, 'Test is unsupported')
490 res = parseIntegratedTestScript(test)
494 script, isXFail, tmpBase, execdir = res
496 if litConfig.noExecute:
497 return (Test.PASS, '')
499 # Create the output directory if it does not already exist.
500 Util.mkdir_p(os.path.dirname(tmpBase))
503 res = executeScript(test, litConfig, tmpBase, script, execdir)
505 res = executeScriptInternal(test, litConfig, tmpBase, script, execdir)
509 out,err,exitCode = res
512 status = (Test.XPASS, Test.XFAIL)[ok]
515 status = (Test.FAIL, Test.PASS)[ok]
520 return formatTestOutput(status, out, err, exitCode, script)