Add XRP extension to robotpy-xrp

Author: virtuald

subprojects/robotpy-xrp/pyproject.toml

@@ -9,6 +9,11 @@ install_requires = [
     "wpilib==THIS_VERSION"
 ]
 
+[tool.robotpy-build.metadata.entry_points]
+robotpysimext = [
+    "xrp = xrp.extension",
+]
+
 [build-system]
 requires = [
     "robotpy-build<2025.0.0,~=2024.0.0",
@@ -45,3 +50,16 @@ group_id = "edu.wpi.first.xrpVendordep"
 repo_url = "https://frcmaven.wpi.edu/artifactory/release"
 version = "2024.2.1"
 libs = ["xrpVendordep"]
+
+[tool.robotpy-build.wrappers."xrp.extension".maven_lib_download]
+artifact_id = "halsim_xrp"
+group_id = "edu.wpi.first.halsim"
+# repo_url = "https://frcmaven.wpi.edu/artifactory/release"
+repo_url = "https://frcmaven.wpi.edu/artifactory/release"
+version = "2024.2.1"
+
+dlopenlibs = ["halsim_xrp"]
+
+[tool.robotpy-build.wrappers."xrp.extension"]
+name = "xrp_ext"
+depends = ["wpiHal", "wpinet"]

subprojects/robotpy-xrp/xrp/extension/__init__.py

@@ -0,0 +1,3 @@
+from .main import loadExtension
+
+__all__ = ["loadExtension"]

subprojects/robotpy-xrp/xrp/extension/main.py

@@ -0,0 +1,23 @@
+import logging
+import os
+from os.path import abspath, dirname, join
+
+logger = logging.getLogger("xrp.extension")
+
+
+def loadExtension():
+    try:
+        import hal
+    except ImportError as e:
+        # really, should never happen...
+        raise ImportError("you must install robotpy-hal!") from e
+
+    from ..version import version
+
+    logger.info("WPILib XRP client %s", version)
+
+    root = join(abspath(dirname(__file__)), "lib")
+    ext = join(root, os.listdir(root)[0])
+    retval = hal.loadOneExtension(ext)
+    if retval != 0:
+        logger.warn("loading extension may have failed (error=%d)", retval)