langchain/.github/scripts/get_min_versions.py
2024-04-09 17:54:58 -07:00

80 lines
2.3 KiB
Python

import sys
import tomllib
from packaging.version import parse as parse_version
import re
MIN_VERSION_LIBS = [
"langchain-core",
"langchain-community",
"langchain",
"langchain-text-splitters",
]
def get_min_version(version: str) -> str:
# base regex for x.x.x with cases for rc/post/etc
# valid strings: https://peps.python.org/pep-0440/#public-version-identifiers
vstring = r"\d+(?:\.\d+){0,2}(?:(?:a|b|rc|\.post|\.dev)\d+)?"
# case ^x.x.x
_match = re.match(f"^\\^({vstring})$", version)
if _match:
return _match.group(1)
# case >=x.x.x,<y.y.y
_match = re.match(f"^>=({vstring}),<({vstring})$", version)
if _match:
_min = _match.group(1)
_max = _match.group(2)
assert parse_version(_min) < parse_version(_max)
return _min
# case x.x.x
_match = re.match(f"^({vstring})$", version)
if _match:
return _match.group(1)
raise ValueError(f"Unrecognized version format: {version}")
def get_min_version_from_toml(toml_path: str):
# Parse the TOML file
with open(toml_path, "rb") as file:
toml_data = tomllib.load(file)
# Get the dependencies from tool.poetry.dependencies
dependencies = toml_data["tool"]["poetry"]["dependencies"]
# Initialize a dictionary to store the minimum versions
min_versions = {}
# Iterate over the libs in MIN_VERSION_LIBS
for lib in MIN_VERSION_LIBS:
# Check if the lib is present in the dependencies
if lib in dependencies:
# Get the version string
version_string = dependencies[lib]
if isinstance(version_string, dict):
version_string = version_string["version"]
# Use parse_version to get the minimum supported version from version_string
min_version = get_min_version(version_string)
# Store the minimum version in the min_versions dictionary
min_versions[lib] = min_version
return min_versions
if __name__ == "__main__":
# Get the TOML file path from the command line argument
toml_file = sys.argv[1]
# Call the function to get the minimum versions
min_versions = get_min_version_from_toml(toml_file)
print(
" ".join([f"{lib}=={version}" for lib, version in min_versions.items()])
) # noqa: T201