pbtk: setup local toolchain for python

honglooker · copybara-github · commit 790ecbe8eb99 · 2025-08-07T06:52:05.000-07:00
#test-continuous

PiperOrigin-RevId: 788602126
diff --git a/MODULE.bazel b/MODULE.bazel
@@ -154,6 +154,32 @@ pip = use_extension("@rules_python//python/extensions:pip.bzl", "pip", dev_depen
 
 use_repo(pip, "protobuf_pip_deps")
 
+local_runtime_repo = use_repo_rule(
+    "@rules_python//python/local_toolchains:repos.bzl",
+    "local_runtime_repo",
+)
+
+local_runtime_toolchains_repo = use_repo_rule(
+    "@rules_python//python/local_toolchains:repos.bzl",
+    "local_runtime_toolchains_repo",
+)
+
+local_runtime_repo(
+    name = "local_python3",
+    interpreter_path = "python3",
+    on_failure = "fail",
+)
+
+local_runtime_toolchains_repo(
+    name = "local_toolchains",
+    runtimes = ["local_python3"],
+)
+
+register_toolchains(
+    "@local_toolchains//:all",
+    dev_dependency = True,
+)
+
 crate = use_extension("@rules_rust//crate_universe:extension.bzl", "crate", dev_dependency = True)
 crate.spec(
     package = "googletest",
diff --git a/cmake/dependencies_generator.py b/cmake/dependencies_generator.py
@@ -47,6 +47,10 @@ def bundle_fetch(self, *args, **kwargs):
     pass
 
 
+def empty_func(*args, **kwargs):
+  pass
+
+
 class ModuleFileFunctions(object):
   """A fake MODULE file that we can exec() to get the functions we need."""
 
@@ -74,7 +78,7 @@ def use_repo(self, *args, **kwargs):
     pass
 
   def use_repo_rule(self, *args, **kwargs):
-    pass
+    return empty_func
 
   def single_version_override(self, *args, **kwargs):
     pass
