FIX: Background App initialization

[koubaa]

Fixes #975

Also cleans up some of the special case handling for exit codes

[codecov]

Codecov Report

Attention: Patch coverage is 90.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 87.82%. Comparing base (ba8cc0d) to head (797d25e).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1030      +/-   ##
==========================================
+ Coverage   83.73%   87.82%   +4.08%     
==========================================
  Files          35       36       +1     
  Lines        2269     2324      +55     
==========================================
+ Hits         1900     2041     +141     
+ Misses        369      283      -86     

[dipinknair]

@koubaa
242: Current ✅
251: ✅ https://github.com/ansys/pymechanical/actions/runs/12659597746
252: ⛔ https://github.com/ansys/pymechanical/actions/runs/12659159767

[koubaa]

@dipinknair On docker I can reproduce that crash with 252 on the main branch of PyMechanical. I will proceed with the merge.

Please try to find out which build date of 252 the crash started to happen in

[dipinknair]

Please try to find out which build date of 252 the crash started to happen in

@koubaa
01/06/2025 14:16:06

build date for the 252 where failure has seen.

[koubaa]

@dipinknair to confirm, the failure is seen on the 1/6 build but not on the 1/5 build?

[dipinknair]

@koubaa

Pass on build date 11/27/2024 09:34:44
Started failing on 01/02/2025 14:15:00

[koubaa]

@dipinknair that's a long range. Were there no builds in between?

[dipinknair]

@koubaa
10/30/2024 16:13:08
This is as far as I can find where failure is occurring on 252.

[koubaa]

@dipinknair ok - seems like something from the very beggining of 25.2. Could be related to the revisioning itself or a thirdparty library change that happened with the revisioning

[koubaa]

@dipinknair please come up with a script that is a minimal reproduction of the crash and we can dig deeper

[dipinknair]

@dipinknair please come up with a script that is a minimal reproduction of the crash and we can dig deeper

@koubaa , Here is a simple script that throws an exception

from ansys.mechanical.core import App
app=App()
app.update_globals(globals())
harmonic_acoustic = Model.AddHarmonicAcousticAnalysis()
harmonic_acoustic.SystemID

this is suppose to show only deprecation warning but with 252 its giving the exception as below.

<stdin>:1: UserWarning: Obsolete: 'SystemID': Property is obsolete, this gets the directory name of the current analysis, not always same as the Workbench level System ID
CRITICAL -  -  logging - handle_exception - Uncaught exception
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
System.Runtime.InteropServices.COMException:  (0x80004005)
  at System.Runtime.InteropServices.Marshal.ThrowExceptionForHR (System.Int32 errorCode) [0x0000a] in <e85874d36dd54c51a7dcd93d72f2c404>:0
  at (wrapper cominterop) Ansys.Common.Interop.DSObjectsAuto.IDSAnswerSetAuto.get_WorkingDir()
  at (wrapper cominterop-invoke) Ansys.Common.Interop.DSObjectsAuto.IDSAnswerSetAuto.get_WorkingDir()
  at Ansys.ACT.Automation.Mechanical.Analysis.get_WorkingDir () [0x00014] in <544882d8fcda455db83dfacecb22b3e2>:0
  at Ansys.ACT.Automation.Mechanical.Analysis.get_SystemID () [0x00005] in <544882d8fcda455db83dfacecb22b3e2>:0
  at (wrapper managed-to-native) System.Reflection.RuntimeMethodInfo.InternalInvoke(System.Reflection.RuntimeMethodInfo,object,object[],System.Exception&)
  at System.Reflection.RuntimeMethodInfo.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x0006a] in <e85874d36dd54c51a7dcd93d72f2c404>:0