Simplify vendored flatbuffers - use upstream as-is

- Simplify update-flatbuffers to just copy files (like zlmdb)
- Remove _git_version.py and version() function
- Rely on upstream's __version__ in _version.py
- Vendored files are excluded from ruff via pyproject.toml

Note: This work was completed with AI assistance (Claude Code).

Author: oberstet

justfile

@@ -1285,140 +1285,11 @@ bump-flatbuffers:
     echo "  3. git commit -m 'Bump vendored flatbuffers to ${LATEST_TAG}'"
 
 # Update vendored flatbuffers Python runtime from git submodule
-# Copies files, runs ruff autoformat, and adds version() function
 update-flatbuffers:
-    #!/usr/bin/env python3
-    import shutil
-    import subprocess
-    import textwrap
-    from pathlib import Path
-
-    src_dir = Path("deps/flatbuffers/python/flatbuffers")
-    dst_dir = Path("src/autobahn/flatbuffers")
-
-    if not src_dir.exists():
-        print(f"ERROR: Flatbuffers submodule not found at {src_dir}")
-        print("Run: git submodule update --init --recursive")
-        raise SystemExit(1)
-
-    # Get git version from submodule
-    result = subprocess.run(
-        ["git", "describe", "--tags", "--always"],
-        cwd="deps/flatbuffers",
-        capture_output=True, text=True, timeout=10
-    )
-    git_version = result.stdout.strip() if result.returncode == 0 else "unknown"
-    print(f"==> Updating vendored flatbuffers from submodule ({git_version})...")
-
-    # Remove old vendored copy and copy fresh
-    if dst_dir.exists():
-        shutil.rmtree(dst_dir)
-    shutil.copytree(src_dir, dst_dir)
-
-    # Generate _git_version.py
-    git_version_py = textwrap.dedent(f"""\
-        # Copyright 2014 Google Inc. All rights reserved.
-        #
-        # Licensed under the Apache License, Version 2.0 (the "License");
-        # you may not use this file except in compliance with the License.
-        # You may obtain a copy of the License at
-        #
-        #     http://www.apache.org/licenses/LICENSE-2.0
-        #
-        # Unless required by applicable law or agreed to in writing, software
-        # distributed under the License is distributed on an "AS IS" BASIS,
-        # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-        # See the License for the specific language governing permissions and
-        # limitations under the License.
-
-        # Git version from deps/flatbuffers submodule.
-        # This file is generated by: just update-flatbuffers
-        # The version is captured via `git describe --tags --always` in the submodule.
-        #
-        # Format: "v25.9.23" (tagged release) or "v25.9.23-2-g95053e6a" (post-tag)
-
-        __git_version__ = "{git_version}"
-        """)
-    (dst_dir / "_git_version.py").write_text(git_version_py)
-
-    # Generate __init__.py with version() function
-    init_py = textwrap.dedent('''\
-        # Copyright 2014 Google Inc. All rights reserved.
-        #
-        # Licensed under the Apache License, Version 2.0 (the "License");
-        # you may not use this file except in compliance with the License.
-        # You may obtain a copy of the License at
-        #
-        #     http://www.apache.org/licenses/LICENSE-2.0
-        #
-        # Unless required by applicable law or agreed to in writing, software
-        # distributed under the License is distributed on an "AS IS" BASIS,
-        # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-        # See the License for the specific language governing permissions and
-        # limitations under the License.
-
-        import re
-
-        from . import util
-        from ._git_version import __git_version__
-        from ._version import __version__
-        from .builder import Builder
-        from .compat import range_func as compat_range
-        from .table import Table
-
-
-        def version() -> tuple[int, int, int, int | None, str | None]:
-            """
-            Return the exact git version of the vendored FlatBuffers runtime.
-
-            Handles:
-
-            1. "v25.9.23"              -> (25, 9, 23, None, None)       # Release (Named Tag, CalVer Year.Month.Day)
-            2. "v25.9.23-71"           -> (25, 9, 23, 71, None)         # 71 commits ahead of the Release v25.9.23
-            3. "v25.9.23-71-g19b2300f" -> (25, 9, 23, 71, "19b2300f")   # dito, with Git commit hash
-            """
-
-            # Pattern explanation:
-            # ^v                : Start of string, literal 'v'
-            # (\\d+)\\.(\\d+)\\.(\\d+) : Groups 1,2,3 - Major.Minor.Patch (Required)
-            #
-            # (?: ... )?        : Non-capturing group (grouping only, not saved), optional '?'
-            # -(\\d+)            : Literal hyphen, Group 4 (Commits)
-            #
-            # (?: ... )?        : Non-capturing group, optional '?'
-            # -g                : Literal hyphen and 'g' (separator)
-            # ([0-9a-f]+)       : Group 5 (Hash)
-
-            pattern = r"^v(\\d+)\\.(\\d+)\\.(\\d+)(?:-(\\d+))?(?:-g([0-9a-f]+))?$"
-
-            match = re.match(pattern, __git_version__)
-
-            if match:
-                major, minor, patch, commits, commit_hash = match.groups()
-
-                # Convert commits to int if present, else None
-                commits_int = int(commits) if commits else None
-
-                return (int(major), int(minor), int(patch), commits_int, commit_hash)
-
-            # Fallback if regex fails entirely (returns 0.0.0 to satisfy type hint)
-            return (0, 0, 0, None, None)
-        ''')
-    (dst_dir / "__init__.py").write_text(init_py)
-
-    # Run ruff autoformat on vendored files
-    try:
-        print("==> Running ruff format on vendored files...")
-        subprocess.run(["ruff", "format", str(dst_dir)], check=False)
-        subprocess.run(["ruff", "check", "--fix", str(dst_dir)], check=False)
-    except FileNotFoundError:
-        print("WARNING: ruff not found, skipping autoformat")
-
-    print(f"✓ Flatbuffers vendor updated in {dst_dir}")
-    print()
-    print("Next steps:")
-    print("  1. git add deps/flatbuffers src/autobahn/flatbuffers")
-    print(f"  2. git commit -m 'Update vendored flatbuffers to {git_version}'")
+    echo "==> Updating vendored flatbuffers from submodule..."
+    rm -rf ./src/autobahn/flatbuffers
+    cp -R deps/flatbuffers/python/flatbuffers ./src/autobahn/flatbuffers
+    echo "✓ Flatbuffers vendor updated in src/autobahn/flatbuffers"
 
 # Build wheel only (usage: `just build cpy314`)
 build venv="": (install-build-tools venv)

src/autobahn/flatbuffers/__init__.py

@@ -12,49 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import re
-
 from . import util
-from ._git_version import __git_version__
 from ._version import __version__
 from .builder import Builder
 from .compat import range_func as compat_range
 from .table import Table
-
-
-def version() -> tuple[int, int, int, int | None, str | None]:
-    """
-    Return the exact git version of the vendored FlatBuffers runtime.
-
-    Handles:
-
-    1. "v25.9.23"              -> (25, 9, 23, None, None)       # Release (Named Tag, CalVer Year.Month.Day)
-    2. "v25.9.23-71"           -> (25, 9, 23, 71, None)         # 71 commits ahead of the Release v25.9.23
-    3. "v25.9.23-71-g19b2300f" -> (25, 9, 23, 71, "19b2300f")   # dito, with Git commit hash
-    """
-
-    # Pattern explanation:
-    # ^v                : Start of string, literal 'v'
-    # (\d+)\.(\d+)\.(\d+) : Groups 1,2,3 - Major.Minor.Patch (Required)
-    #
-    # (?: ... )?        : Non-capturing group (grouping only, not saved), optional '?'
-    # -(\d+)            : Literal hyphen, Group 4 (Commits)
-    #
-    # (?: ... )?        : Non-capturing group, optional '?'
-    # -g                : Literal hyphen and 'g' (separator)
-    # ([0-9a-f]+)       : Group 5 (Hash)
-
-    pattern = r"^v(\d+)\.(\d+)\.(\d+)(?:-(\d+))?(?:-g([0-9a-f]+))?$"
-
-    match = re.match(pattern, __git_version__)
-
-    if match:
-        major, minor, patch, commits, commit_hash = match.groups()
-
-        # Convert commits to int if present, else None
-        commits_int = int(commits) if commits else None
-
-        return (int(major), int(minor), int(patch), commits_int, commit_hash)
-
-    # Fallback if regex fails entirely (returns 0.0.0 to satisfy type hint)
-    return (0, 0, 0, None, None)