Get RUNFILES_DIR via rules_python

Author: NEOatNHNG

MODULE.bazel

@@ -29,7 +29,7 @@ bazel_dep(name = "rules_pkg", version = "1.1.0")
 # Python version
 #
 ###############################################################################
-bazel_dep(name = "rules_python", version = "1.4.1")
+bazel_dep(name = "rules_python", version = "1.5.0")
 
 PYTHON_VERSION = "3.12"
 

src/extensions/BUILD

@@ -20,4 +20,8 @@ py_library(
     srcs = ["@score_docs_as_code//src/extensions:score_plantuml.py"],
     imports = ["."],
     visibility = ["//visibility:public"],
+    deps = [
+        "@rules_python//python/runfiles",
+        "@score_docs_as_code//src:plantuml_for_python",
+    ],
 )

src/extensions/score_plantuml.py

@@ -24,24 +24,24 @@
 In addition it sets common PlantUML options, like output to svg_obj.
 """
 
-import os
 import sys
 from pathlib import Path
 
+from python.runfiles import Runfiles
 from sphinx.application import Sphinx
 from sphinx.util import logging
 
 logger = logging.getLogger(__name__)
 
 
 def get_runfiles_dir() -> Path:
-    if r := os.getenv("RUNFILES_DIR"):
+    if (r := Runfiles.Create()) and (rd := r.EnvVars().get("RUNFILES_DIR")):
         # Runfiles are only available when running in Bazel.
         # bazel build and bazel run are both supported.
         # i.e. `bazel build //:docs` and `bazel run //:docs`.
         logger.debug("Using runfiles to determine plantuml path.")
 
-        runfiles_dir = Path(r)
+        runfiles_dir = Path(rd)
 
     else:
         # The only way to land here is when running from within the virtual