fix: generate version when prepare and read in setup.py

Signed-off-by: jac <[email protected]>

Author: jac0626

python/setup.py

@@ -1,8 +1,23 @@
+import os
 from setuptools import setup, Extension
 
+def _read_version():
+    # The _version.py file is generated by scripts/python/prepare_python_build.sh
+    # We read it here to set the version statically.
+    here = os.path.dirname(os.path.abspath(__file__))
+    _version_file = os.path.join(here, 'pyvsag', '_version.py')
+    
+    if os.path.exists(_version_file):
+        ns = {}
+        with open(_version_file) as f:
+            exec(f.read(), ns)
+        return ns.get('__version__')
+    return '0.0.0'
+
 # All other configuration is in setup.cfg / pyproject.toml.
 # This file is kept for the C-extension definition.
 setup(
+    version=_read_version(),
     ext_modules=[Extension('example', sources=['example.c'])],
     zip_safe=False,
 )

scripts/python/prepare_python_build.sh

@@ -25,7 +25,16 @@ pip install -q setuptools_scm
 echo "   - Generating python/pyvsag/_version.py..."
 python3 -c "
 import setuptools_scm
-version = setuptools_scm.get_version()
+try:
+    # Explicitly configure setuptools_scm since pyproject.toml is in a subdir
+    version = setuptools_scm.get_version(
+        root='.',
+        version_scheme='release-branch-semver',
+        local_scheme='no-local-version'
+    )
+except Exception:
+    version = '0.0.0'
+
 with open('python/pyvsag/_version.py', 'w') as f:
     f.write(f'__version__ = \"{version}\"\\n')
 print(f'   - Version generated: {version}')