node-command-line

node-command-line

Simple node.js commandline or terminal interface to execute cli commands from node environment with/without promise

using node-command-line you can run commands synchronously/asynchronously and get the output as a promise.

GitHub Info:

##Method

method	argument	functionality
run	command	run command synchronously/asynchronously based on using yield

##Examples

Inject the dependencies

var cmd     = require('node-command-line'),
    Promise = require('bluebird');

Execute the single command without wait

function runSingleCommandWithoutWait() {
  cmd.run('node --version');
  console.log('Executed your command :)');
}

In this example run the command node --version that will show the node version and also print Executed your command :). node version may shown after print Executed your command :) because of second command do not wait for executing the first command.

Output in console like:

 Executed your command :)
 
 v6.2.1
 

Execute the single command with wait (using promise)

function runSingleCommandWithWait() {
  Promise.coroutine(function *() {
    yield cmd.run('node --version');
    console.log('Executed your command :)');
  })();
}

In this example run the command node --version that will show the node version and also print Executed your command :). node version will show before print Executed your command :) because of second command will execute after executing the first command.

Output in console like:

 v6.2.1
 
 Executed your command :)
 

Execute the multiple command without wait

function runMultipleCommandWithoutWait() {
  Promise.coroutine(function *() {
    var commands = ["node --version","npm --version"];
    for(var i=0; i < commands.length; i++) {
      cmd.run(commands[i]);
    }
    console.log('Executed your command :)');
  })();
}

In this example run the command node --version and npm --version that will show the node version and npm version also print Executed your command :). node and npm version may shown after print Executed your command :) because of `console.log`` do not wait for executing the first two command.

Output in console like:

 Executed your command :)
 
 v6.2.1
 
 3.10.2
 

Execute the multiple command without wait

function runMultipleCommandWithWait() {
  Promise.coroutine(function *() {
    var commands = ["node --version","npm --version"];
    for(var i=0; i < commands.length; i++) {
      yield cmd.run(commands[i]);
    }
    console.log('Executed your command :)');
  })();
}

In this example run the command node --version and npm --version that will show the node version and npm version also print Executed your command :). node and npm version will show before print Executed your command :) because of `console.log`` will be waiting for executing the first two command.

Output in console like:

 
 v6.2.1
 
 3.10.2
 
 Executed your command :)
 

Execute the single command with wait and get response (using yield)

function runSingleCommandWithWait() {
  Promise.coroutine(function *() {
    var response = yield cmd.run('node --version');
    if(response.success) {
       // do something
       // if success get stdout info in message. like response.message
    } else {
      // do something
      // if not success get error message and stdErr info as error and stdErr. 
      //like response.error and response.stdErr
    }
    console.log('Executed your command :)');
  })();
}