get-uv-version.py

"""
$ uvx [email protected] run get-uv-version.py
0.6.0
$ uvx [email protected] run get-uv-version.py
0.7.0
"""

import json
import os
import subprocess


def get_uv_version() -> str:
    uv = os.environ.get("UV", "uv")

    result = json.loads(
        subprocess.check_output(
            [uv, "version", "--output-format", "json"], stderr=subprocess.DEVNULL
        )
    )

    package = result.get("package_name")

    # Either pre 0.7.0, or not in a project and uv's version was returned
    if package is None or package == "uv":
        return result["version"]

    # Post 0.7.0, `uv self version` should be used
    return json.loads(
        subprocess.check_output([uv, "self", "version", "--output-format", "json"])
    )["version"]


print(get_uv_version())