async function createPythonVenv()

in glean/src/cli.ts [171:199]

• 22 lines of code
• 3 McCabe index (conditional complexity)

async function createPythonVenv(venvPath: string): Promise<boolean> {
  log(LOG_TAG, `Creating a virtual environment at ${venvPath}`);

  const pipFilename = process.env.GLEAN_PIP ?? getPipBinName();
  const venvPip =
    path.join(getPythonVenvBinariesPath(VIRTUAL_ENVIRONMENT_DIR), pipFilename);

  const pipCmd = `${venvPip} install wheel`;

  const pythonBinary = process.env.GLEAN_PYTHON ?? getSystemPythonBinName();
  const venvCmd = `${pythonBinary} -m venv ${VIRTUAL_ENVIRONMENT_DIR}`;

  for (const cmd of [venvCmd, pipCmd]) {
    const spinner = getStartedSpinner();
    const {err, stdout, stderr} = await new Promise<{err: exec.ExecException | null, stdout: string, stderr: string}>(resolve => {
      exec.exec(cmd, (err, stdout, stderr) => resolve({err, stdout, stderr}));
    });

    stopSpinner(spinner);
    log(LOG_TAG, `${stdout}`);

    if (err) {
      log(LOG_TAG, `${stderr}`);
      return false;
    }
  }

  return true;
}