Mercurial Repositories > eric / file comparison
comparison: eric6/DebugClients/Python/SubprocessExtension.py
eric6/DebugClients/Python/SubprocessExtension.py
- branch
- multi_processing
- changeset 7424
- 9bb7d8b0f966
- child 7563
- b0d6b63f2843
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| 7422:9a008ab4811b | 7424:9bb7d8b0f966 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2020 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a function to patch subprocess.Popen to support debugging | |
| 8 of the process. | |
| 9 """ | |
| 10 | |
| 11 import os | |
| 12 import shlex | |
| 13 | |
| 14 from DebugUtilities import isPythonProgram, startsWithShebang, patchArguments | |
| 15 | |
| 16 _debugClient = None | |
| 17 | |
| 18 | |
| 19 def patchSubprocess(module, debugClient): | |
| 20 """ | |
| 21 Function to patch the subprocess module. | |
| 22 | |
| 23 @param module reference to the imported module to be patched | |
| 24 @type module | |
| 25 @param debugClient reference to the debug client object | |
| 26 @type DebugClient | |
| 27 """ # __IGNORE_WARNING_D234__ | |
| 28 global _debugClient | |
| 29 | |
| 30 # TODO: implement a process tracer | |
| 31 # i.e. report which processes are started | |
| 32 class PopenWrapper(module.Popen): | |
| 33 """ | |
| 34 Wrapper class for subprocess.Popen. | |
| 35 """ | |
| 36 def __init__(self, arguments, *args, **kwargs): | |
| 37 """ | |
| 38 Constructor | |
| 39 | |
| 40 @param arguments command line arguments for the new process | |
| 41 @type list of str or str | |
| 42 @param args constructor arguments of Popen | |
| 43 @type list | |
| 44 @param kwargs constructor keword only arguments of Popen | |
| 45 @type dict | |
| 46 """ | |
| 47 if ( | |
| 48 _debugClient.debugging and | |
| 49 _debugClient.multiprocessSupport and | |
| 50 isinstance(arguments, (str, list)) | |
| 51 ): | |
| 52 if isinstance(arguments, str): | |
| 53 # convert to arguments list | |
| 54 arguments = shlex.split(arguments) | |
| 55 else: | |
| 56 # create a copy of the arguments | |
| 57 arguments = arguments[:] | |
| 58 ok = isPythonProgram(arguments[0]) | |
| 59 if ok: | |
| 60 if startsWithShebang(arguments[0]): | |
| 61 scriptName = os.path.basename(arguments[0]) | |
| 62 else: | |
| 63 scriptName = os.path.basename(arguments[0]) | |
| 64 if scriptName not in _debugClient.noDebugList: | |
| 65 arguments = patchArguments( | |
| 66 _debugClient, arguments, noRedirect=True | |
| 67 ) | |
| 68 | |
| 69 super(PopenWrapper, self).__init__(arguments, *args, **kwargs) | |
| 70 | |
| 71 _debugClient = debugClient | |
| 72 module.Popen = PopenWrapper |
