Android-Emulator-Node.js

emulate.js

(function() {
  var childProcess = require("child_process");
  var oldSpawn = childProcess.spawn;
  function mySpawn() {
      console.log('spawn called');
      console.log(arguments);
      var result = oldSpawn.apply(this, arguments);
      return result;
  }
  childProcess.spawn = mySpawn;
})();
const { spawn, exec } = require('child_process');

 

const stdin = process.openStdin();

console.log(process.env.ANDROID_HOME)
 
const TOOLS_PATH = `${process.env.ANDROID_HOME}/tools`;

console.log('Starting directory: ' + process.cwd());
try {
  process.chdir(TOOLS_PATH);
  console.log('New directory: ' + process.cwd());
}
catch (err) {
  console.log('chdir: ' + err);
}

const emulator = spawn(`${TOOLS_PATH}/emulator`, ['-list-avds']);
let emulatorList = []
emulator.stdout.on('data', (resultBuffer) => {
  console.log(`stdout: ${resultBuffer}`);

  emulatorList = resultBuffer.toString()
                            
                           .split("\n")
                           
                           .filter(line => line.trim())
  console.log(emulatorList)

  console.log("Start an Emulator ")

  emulatorList.map ((name, i) => {
      console.log(i, '. ' + name)
  })
});

emulator.stderr.on('data', (data) => {
  console.log(`stderr: ${data}`);
});

emulator.on('close', (code) => {
  console.log(`child process exited with code ${code}`);
});


stdin.addListener('data', d => {
    if (d.length <= 0) return;

     const choice = parseInt(d);
     if (typeof choice === 'number' && choice < emulatorList.length) {
       console.log("choice is ", choice);
        const avdName = emulatorList[choice];
        console.log('starting avd ', avdName);
        console.log('New directory: ' + process.cwd());


        exec(`${TOOLS_PATH}/emulator -avd ${avdName} -netdelay none -netspeed full`, (err, stdout, stderr) => {
          if (err) {
            console.error(`exec error: ${err}`);
            return;
          }
        
          console.log(`Number of files ${stdout}`);
        });
        // const emulatorAVD = spawn(`${TOOLS_PATH}/emulator `  , [`-avd ${avdName} -netdelay none -netspeed full`]);

        // emulatorAVD.on('error', function( err ){
        //     console.log(err)
        //   throw err })
        // emulatorAVD.stdout.on('data', (resultBuffer) => {
        //     console.log(`avd stdout: ${resultBuffer}`);
           
        //   });
          
        //   emulatorAVD.stderr.on('data', (data) => {
        //     console.log(`avd stderr: ${data}`);
        //   });
          
        //   emulatorAVD.on('close', (code) => {
        //     console.log(`avd child process exited with code ${code}`);
        //   });
     }
  });
  
  stdin.addListener('end', () => {
    console.info(`Input: ${content}`);
  });