remove pytest plugins

Author: evertlammerts

.github/workflows/packaging_wheels.yml

@@ -44,9 +44,22 @@ jobs:
           - { minimal: true, python: cp310 }
           - { minimal: true, python: cp311 }
           - { minimal: true, python: cp312 }
+          - { minimal: true, python: cp313 }
           - { minimal: true, platform: { arch: universal2 } }
     runs-on: ${{ matrix.platform.os }}
     env:
+      ### cibuildwheel configuration
+      #
+      # This is somewhat brittle, so be careful with changes. Some notes for our future selves (and others):
+      # - cibw will change its cwd to a temp dir and create a separate venv for testing. It then installs the wheel it
+      #   built into that venv, and run the CIBW_TEST_COMMAND. We have to install all dependencies ourselves, and make
+      #   sure that the pytest config in pyproject.toml is available.
+      # - CIBW_BEFORE_TEST installs the test dependencies by exporting them into a pylock.toml. At the time of writing,
+      #   `uv sync --no-install-project` had problems correctly resolving dependencies using resolution environments
+      #   across all platforms we build for. This might be solved in newer uv versions.
+      # - CIBW_TEST_COMMAND specifies pytest conf from pyproject.toml. --confcutdir is needed to prevent pytest from
+      #   traversing the full filesystem, which produces an error on Windows.
+      # - CIBW_TEST_SKIP we always skip tests for *-macosx_universal2 builds, because we run tests for arm64 and x86_64.
       CIBW_TEST_SKIP: ${{ inputs.testsuite == 'none' && '*' || '*-macosx_universal2' }}
       CIBW_TEST_SOURCES: tests
       CIBW_BEFORE_TEST: >

cmake/compiler_launcher.cmake

@@ -8,8 +8,7 @@ include(CMakeParseArguments)
 # Function to look for ccache and sccache to speed up builds, if available
 # ────────────────────────────────────────────
 function(setup_compiler_launcher_if_available)
-  if(NOT DEFINED CMAKE_C_COMPILER_LAUNCHER AND NOT DEFINED
-                                               ENV{CMAKE_C_COMPILER_LAUNCHER})
+  if(NOT DEFINED CMAKE_C_COMPILER_LAUNCHER)
     find_program(COMPILER_LAUNCHER NAMES ccache sccache)
     if(COMPILER_LAUNCHER)
       message(STATUS "Using ${COMPILER_LAUNCHER} as C compiler launcher")
@@ -19,8 +18,7 @@ function(setup_compiler_launcher_if_available)
     endif()
   endif()
 
-  if(NOT DEFINED CMAKE_CXX_COMPILER_LAUNCHER
-     AND NOT DEFINED ENV{CMAKE_CXX_COMPILER_LAUNCHER})
+  if(NOT DEFINED CMAKE_CXX_COMPILER_LAUNCHER)
     find_program(COMPILER_LAUNCHER NAMES ccache sccache)
     if(COMPILER_LAUNCHER)
       message(STATUS "Using ${COMPILER_LAUNCHER} as C++ compiler launcher")

pyproject.toml

@@ -233,8 +233,6 @@ test = [ # dependencies used for running tests
     "pytest",
     "pytest-reraise",
     "pytest-timeout",
-    "pytest-xdist",
-    #"pytest-randomly",
     "pytest-timestamper",
     "mypy",
     "coverage",
@@ -305,7 +303,7 @@ dev = [ # tooling like uv will install this automatically when syncing the envir
 
 [tool.pytest.ini_options]
 minversion = "6.0"
-addopts = "-ra --numprocesses 4 --dist loadfile --verbose"
+addopts = "-ra --verbose"
 testpaths = ["tests"]
 filterwarnings = [
     "error",