chattolib/scripts/protoc-gen-chattolib

#!/usr/bin/env python3
"""Standalone launcher for the chattolib protoc plugin.

Loaded by file path (not via `import chattolib`) so running it never triggers
``chattolib/__init__.py`` — which eagerly imports the client and its generated
stubs. That matters for bootstrap: this plugin *generates* those stubs, so it
must run before they exist. ``protoc`` finds it on PATH and invokes it with
``--chattolib_out``.

The plugin path is resolved from the launcher's *real* location (this file may
be reached through a symlink), so it works from any PATH entry.
"""
import importlib.util
import os
import sys

_here = os.path.dirname(os.path.realpath(__file__))  # .../scripts
_plugin = os.path.join(_here, os.pardir, "src", "chattolib", "_protoc_plugin.py")
_plugin = os.path.abspath(_plugin)

spec = importlib.util.spec_from_file_location("_chattolib_protoc_plugin", _plugin)
mod = importlib.util.module_from_spec(spec)
spec.loader.exec_module(mod)  # type: ignore[union-attr]
sys.exit(mod.main())