Display actual Bonsai version for live repo (reuse last commit date)

src/bonsai/bonsai/__init__.py

@@ -252,6 +252,12 @@ if IN_BLENDER:
 
         ifcopenshell.api.add_pre_listener("*", "action_logger", log_api)
 
+        def purge_cache():
+            """Purge cache left from previous session (e.g. after reload or update)."""
+            import bonsai.tool as tool
+
+            tool.Blender.get_bonsai_version.cache_clear()
+
         def register():
             if platform.system() == "Windows":
                 clean_up_dlls_safe_links()
@@ -269,6 +275,7 @@ if IN_BLENDER:
                 bonsai.REINSTALLED_BBIM_VERSION = current_version
 
             bonsai.bim.register()
+            purge_cache()
 
         def unregister():
             if platform.system() == "Windows":

src/bonsai/bonsai/tool/blender.py

@@ -24,6 +24,7 @@ import json
 import os
 import platform
 import subprocess
+import contextlib
 import numpy as np
 import numpy.typing as npt
 from ifcopenshell import entity_instance
@@ -34,9 +35,10 @@ import bonsai.tool as tool
 import bonsai.bim
 import types
 import importlib
+from datetime import datetime
 from mathutils import Vector
 from pathlib import Path
-from functools import lru_cache
+from functools import lru_cache, cache
 from bonsai.bim.ifc import IFC_CONNECTED_TYPE
 from typing import Any, Optional, Union, Literal, Iterable, Callable, TypeVar, Generator, TYPE_CHECKING
 from typing_extensions import assert_never
@@ -1246,9 +1248,27 @@ class Blender(bonsai.core.tool.Blender):
         return bonsai.get_last_commit_hash()
 
     @classmethod
+    @cache
     def get_bonsai_version(cls) -> str:
-        bbim = cls.get_bbim_extension_package()
-        version = bbim.bbim_semver["version"]
+        version = None
+
+        # Try to retrieve actual version for live-dev environment.
+        with contextlib.suppress(Exception):
+            import git
+
+            path = Path(__file__).resolve().parent
+            repo = git.Repo(str(path), search_parent_directories=True)
+            repo_path = repo.working_tree_dir
+            assert repo_path
+            version_ = (Path(repo_path) / "VERSION").read_text().strip()
+            commit_date = bonsai.get_last_commit_date()
+            assert commit_date
+            commit_date = datetime.fromisoformat(commit_date)
+            version = f"{version_}-alpha{commit_date.strftime('%y%m%d')}"
+
+        if version is None:
+            bbim = cls.get_bbim_extension_package()
+            version = bbim.bbim_semver["version"]
         if commit_hash := cls.get_last_commit_hash():
             version += f"-{commit_hash}"
         return version