From 290070cafbb057f5f63b04d740c1f8cf15e100a2 Mon Sep 17 00:00:00 2001
From: Igor Apresov <i@ingvar.pro>
Date: Mon, 27 Jul 2026 16:52:39 +0700
Subject: [PATCH] fix: initialize multiprocessing in frozen tools

---
 manifests/rlm-tools-bsl.json             |  2 +-
 tests/test_python_builder.py             | 15 +++++++++++++++
 tests/test_repository_contract.py        |  2 +-
 toolchain/builders/python_pyinstaller.py |  2 ++
 4 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/manifests/rlm-tools-bsl.json b/manifests/rlm-tools-bsl.json
index a55d2d0..8f9cef2 100644
--- a/manifests/rlm-tools-bsl.json
+++ b/manifests/rlm-tools-bsl.json
@@ -2,7 +2,7 @@
   "schemaVersion": 3,
   "name": "rlm-tools-bsl",
   "version": "1.29.1",
-  "buildRevision": 1,
+  "buildRevision": 2,
   "source": {
     "kind": "release",
     "repository": "https://github.com/Dach-Coin/rlm-tools-bsl",
diff --git a/tests/test_python_builder.py b/tests/test_python_builder.py
index 45ad182..99bc56f 100644
--- a/tests/test_python_builder.py
+++ b/tests/test_python_builder.py
@@ -10,12 +10,27 @@
     build_python_pyinstaller,
     parse_uv_version,
     verify_builder_identity,
+    write_entrypoint_stub,
 )
 from toolchain.manifest import load_manifest
 from toolchain.source import PreparedSource
 
 
 class PythonBuilderTests(unittest.TestCase):
+    def test_frozen_entrypoint_dispatches_multiprocessing_before_cli_parsing(self) -> None:
+        root = Path(self.enterContext(tempfile.TemporaryDirectory()))
+        stub = root / "entrypoint.py"
+
+        write_entrypoint_stub(stub, "rlm_tools_bsl.server", "main")
+
+        source = stub.read_text(encoding="utf-8")
+        self.assertIn("import multiprocessing", source)
+        self.assertIn("multiprocessing.freeze_support()", source)
+        self.assertLess(
+            source.index("multiprocessing.freeze_support()"),
+            source.index("sys.exit(main())"),
+        )
+
     def test_parses_uv_platform_metadata_and_checks_exact_identity(self) -> None:
         self.assertEqual(
             parse_uv_version("uv 0.11.29 (901092ee1 aarch64-apple-darwin)"),
diff --git a/tests/test_repository_contract.py b/tests/test_repository_contract.py
index 9a1bdfb..fa2edb5 100644
--- a/tests/test_repository_contract.py
+++ b/tests/test_repository_contract.py
@@ -26,7 +26,7 @@ def test_checked_in_tools_have_independent_release_identities(self) -> None:
                 "release",
                 "v1.29.1",
                 "8bc6e9fc83b522f9a79eab3193eb13fc2cecb8ed",
-                "rlm-tools-bsl-v1.29.1-build.1",
+                "rlm-tools-bsl-v1.29.1-build.2",
             ),
             "bsl-analyzer": (
                 "release",
diff --git a/toolchain/builders/python_pyinstaller.py b/toolchain/builders/python_pyinstaller.py
index a1f27ca..6a666f3 100644
--- a/toolchain/builders/python_pyinstaller.py
+++ b/toolchain/builders/python_pyinstaller.py
@@ -96,6 +96,7 @@ def write_entrypoint_stub(path: Path, module: str, attr: str) -> None:
         "\n".join(
             [
                 "import importlib",
+                "import multiprocessing",
                 "import sys",
                 "",
                 f"MODULE = {module!r}",
@@ -108,6 +109,7 @@ def write_entrypoint_stub(path: Path, module: str, attr: str) -> None:
                 "    return obj()",
                 "",
                 "if __name__ == '__main__':",
+                "    multiprocessing.freeze_support()",
                 "    sys.exit(main())",
                 "",
             ]