Function getUvBinaryOrInstall

packages/python/src/uv.ts:407–444

(
  pythonPath: string
)

}

export async function getUvBinaryOrInstall(
  pythonPath: string
): Promise<string> {
  const uvBin = await findUvBinary(pythonPath);
  if (uvBin) return uvBin;

  // Pip install uv
  // Note we're using pip directly instead of pipPath because we want to make sure
  // it is installed in the same environment as the Python interpreter
  try {
    console.log('Installing uv...');
    await execa(
      pythonPath,
      [
        '-m',
        'pip',
        'install',
        '--disable-pip-version-check',
        '--no-cache-dir',
        '--user',
        `uv==${UV_VERSION}`,
      ],
      { env: { ...process.env, PIP_USER: '1' } }
    );
  } catch (err) {
    throw new Error(
      `Failed to install uv via pip: ${err instanceof Error ? err.message : String(err)}`
    );
  }

  const resolvedUvBin = await findUvBinary(pythonPath);
  if (!resolvedUvBin) {
    throw new Error('Unable to resolve uv binary after pip install');
  }

  console.log(`Installed uv at "${resolvedUvBin}"`);
  return resolvedUvBin;
}

export function filterUnsafeUvPipArgs(args: string[]): string[] {
  // `--no-warn-script-location` is not supported/safe with `uv pip install`,