@kinvolk/headlamp-plugin/official-plugins/minikube/src/CommandCluster/useInfo.ts

The needed infrastructure for building Headlamp plugins.

import { runCommand } from '@kinvolk/headlamp-plugin/lib';
import React from 'react';

const DEBUG = false;

export interface DriverInfo {
  diskFree: string;
  dockerRunning: boolean;
  hyperVRunning: boolean;
  hyperVEnabled: boolean;
  ram: string;
  freeRam: string;
  /**
   * from minikube profiles list --output=json
   */
  minikubeProfiles: {
    invalid: Array<{ Name: string; Status: string; Config: any }>;
    valid: Array<{ Name: string; Status: string; Config: any }>;
  };
}

declare const pluginRunCommand: typeof runCommand;
declare const pluginPath: string;
const packagePath =
  typeof pluginPath !== 'undefined'
    ? pluginPath.startsWith('plugins/') || pluginPath.startsWith('plugins\\')
      ? pluginPath.substring(8)
      : pluginPath.startsWith('user-plugins/') || pluginPath.startsWith('user-plugins\\')
      ? pluginPath.substring(13)
      : pluginPath.startsWith('static-plugins/') || pluginPath.startsWith('static-plugins\\')
      ? pluginPath.substring(15)
      : pluginPath
    : '';

/**
 * @returns {diskFree: '339.65', dockerRunning: false, hyperVRunning: true, hyperVEnabled: true, ram: '24.00'}
 */
export function useInfo(): DriverInfo | null {
  const [info, setInfo] = React.useState<DriverInfo | null>(null);

  React.useEffect(() => {
    let stdoutData = '';
    const scriptjs = pluginRunCommand(
      //@ts-ignore
      'scriptjs',
      [`${packagePath}/manage-minikube.js`, '-headless', 'info'],
      {}
    );
    scriptjs.stdout.on('data', data => {
      if (DEBUG) {
        console.log('useInfo on data:', data.toString());
      }
      stdoutData += data.toString();
    });
    scriptjs.stderr.on('data', data => {
      console.error('Error from minikube info script:', data.toString());
      console.error('Error fetching minikube info:', data.toString());
    });
    scriptjs.on('exit', code => {
      if (code === 0) {
        try {
          if (DEBUG) {
            console.log('useInfo, on exit stdoutData:', stdoutData);
          }

          setInfo(JSON.parse(stdoutData));
        } catch (e) {
          console.error('Failed to parse minikube info JSON:', e, stdoutData);
          setInfo(null);
        }
      } else {
        console.error('Failed to fetch minikube info, exit code:', code, stdoutData);
        setInfo(null);
      }
    });

    return () => {
      // Cleanup if needed
    };
  }, []);

  return info;
}