Moved the metadata into setup.cfg

Added pyproject.toml
Replaced fetching version from a file with fetching a version from version control system tags.
Also fixed a bug with incorrect content of `__all__` in `__main__.py`

Author: KOLANICH

.gitignore

@@ -1,3 +1,6 @@
+# autogenerated version file
+/pylsp_jsonrpc/_version.py
+
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]

pylsp_jsonrpc/__init__.py

@@ -1,6 +1,21 @@
 # Copyright 2017-2020 Palantir Technologies, Inc.
 # Copyright 2021- Python Language Server Contributors.
 
+from . import _version
 from ._version import __version__
 
-__all__ = [__version__]
+def convertVersionInfo(version: str) -> (int, ..., str):
+    VERSION_INFO = version.split(".")
+    for i in range(len(VERSION_INFO)):
+        try:
+            VERSION_INFO[i] = int(VERSION_INFO[i])
+        except ValueError:
+            VERSION_INFO[i] = VERSION_INFO[i].split("+")[0]
+            VERSION_INFO = VERSION_INFO[:i + 1]
+            break
+
+    return tuple(VERSION_INFO)
+
+_version.VERSION_INFO = convertVersionInfo(__version__)
+
+__all__ = ("__version__",)

pylsp_jsonrpc/_version.py

@@ -0,0 +1,7 @@
+[build-system]
+requires = ["setuptools>=44", "wheel", "setuptools_scm[toml]>=3.4.3"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools_scm]
+write_to = "pylsp_jsonrpc/_version.py"
+write_to_template = "__version__ = \"{version}\"\n"  # VERSION_INFO is populated in __main__

pyproject.toml

@@ -1,3 +1,28 @@
+[metadata]
+name = python-lsp-jsonrpc
+author = Python Language Server Contributors
+description = JSON RPC 2.0 server library
+url = https://github.com/python-lsp/python-lsp-jsonrpc
+long_description = file: README.md
+long_description_content_type = text/markdown
+
+
+[options]
+packages = find:
+setup_requires = setuptools>=44; wheel; setuptools_scm[toml]>=3.4.3
+install_requires = ujson>=3.0.0
+
+[options.packages.find]
+exclude = contrib; docs; test; test.*
+
+[options.extras_require]
+test =
+    pylint
+    pycodestyle
+    pyflakes
+    pytest
+    pytest-cov
+    coverage
 
 [pycodestyle]
 ignore = E226, E722, W504

setup.cfg

@@ -3,43 +3,6 @@
 # Copyright 2017-2020 Palantir Technologies, Inc.
 # Copyright 2021- Python Language Server Contributors.
 
-import ast
-import os
 from setuptools import find_packages, setup
 
-HERE = os.path.abspath(os.path.dirname(__file__))
-
-
-def get_version(module='pylsp_jsonrpc'):
-    """Get version."""
-    with open(os.path.join(HERE, module, '_version.py'), 'r') as f:
-        data = f.read()
-    lines = data.split('\n')
-    for line in lines:
-        if line.startswith('VERSION_INFO'):
-            version_tuple = ast.literal_eval(line.split('=')[-1].strip())
-            version = '.'.join(map(str, version_tuple))
-            break
-    return version
-
-
-README = open('README.md', 'r').read()
-
-
-setup(
-    name='python-lsp-jsonrpc',
-    version=get_version(),
-    description='JSON RPC 2.0 server library',
-    long_description=README,
-    long_description_content_type='text/markdown',
-    url='https://github.com/python-lsp/python-lsp-jsonrpc',
-    author='Python Language Server Contributors',
-    packages=find_packages(exclude=['contrib', 'docs', 'test']),
-    install_requires=[
-        'ujson>=3.0.0',
-    ],
-    extras_require={
-        'test': ['pylint', 'pycodestyle', 'pyflakes', 'pytest',
-                 'pytest-cov', 'coverage'],
-    },
-)
+setup(packages=find_packages(exclude=['contrib', 'docs', 'test']))