Remove xonsh activator (#2160)

Signed-off-by: Bernát Gábor <[email protected]>

Author: gaborbernat

docs/changelog/2160.removal.rst

@@ -0,0 +1,3 @@
+Removed ``xonsh`` activator due to this breaking fairly often the CI and lack of support from those packages
+maintainers, upstream is encouraged to continue supporting the project as a
+`plugin <https://github.com/xonsh/xonsh/issues/3689>`_  - by :user:`gaborbernat`.

setup.cfg

@@ -66,7 +66,6 @@ virtualenv.activate =
     fish = virtualenv.activation.fish:FishActivator
     powershell = virtualenv.activation.powershell:PowerShellActivator
     python = virtualenv.activation.python:PythonActivator
-    xonsh = virtualenv.activation.xonsh:XonshActivator
 virtualenv.create =
     venv = virtualenv.create.via_global_ref.venv:Venv
     cpython3-posix = virtualenv.create.via_global_ref.builtin.cpython.cpython3:CPython3Posix
@@ -103,15 +102,13 @@ testing =
     pytest-randomly>=1
     pytest-timeout>=1
     packaging>=20.0;python_version>"3.4"
-    xonsh>=0.9.16;python_version > '3.4' and python_version != '3.9'
 
 [options.package_data]
 virtualenv.activation.bash = *.sh
 virtualenv.activation.batch = *.bat
 virtualenv.activation.cshell = *.csh
 virtualenv.activation.fish = *.fish
 virtualenv.activation.powershell = *.ps1
-virtualenv.activation.xonsh = *.xsh
 virtualenv.seed.wheels.embed = *.whl
 
 [sdist]

src/virtualenv/activation/__init__.py

@@ -6,12 +6,10 @@
 from .fish import FishActivator
 from .powershell import PowerShellActivator
 from .python import PythonActivator
-from .xonsh import XonshActivator
 
 __all__ = [
     "BashActivator",
     "PowerShellActivator",
-    "XonshActivator",
     "CShellActivator",
     "PythonActivator",
     "BatchActivator",