Disable default MAX_PATH length limit for Windows agents in RelEng JIPP

Summary

After the remoteFS of the native build agents was prepared for usage in multiple JIPPs via https://github.com/eclipse-cbi/jiro/pull/379, for #4231, we now see errors in I-build tests on Windows that indicate that the paths are too long: https://github.com/eclipse-pde/eclipse.pde/issues/1333

The simplest solution (and hopefully one without other drawbacks) could be to disable the Maximum Path Length Limitation, that is enabled on Windows by default, for the Windows build agents in the RelEng JIPP:

• https://ci.eclipse.org/releng/computer/qa6xd%2Dwin11/
  This one currently executes the I-build tests for win-x86_64 so it should definitively be fixed
• https://ci.eclipse.org/releng/computer/rie8t%2Dwin11%2Darm64/
  This one will hopefully soon execute I-build tests for win-arch
• https://ci.eclipse.org/releng/computer/rs68g%2Dwin10/
  To be consistent with the other machines it would be good to disable the limit here too (if possible).

This article describes how this can be changed in the Windows Registry: https://learn.microsoft.com/en-us/windows/win32/fileio/maximum-file-path-limitation?tabs=powershell#enable-long-paths-in-windows-10-version-1607-and-later

Would that be feasible?

FYI @akurtakov and @aloskutov

Priority

• Urgent
• High
• Medium
• Low

Severity

• Blocker
• Major
• Normal
• Low