Render And System Call - ff6347/extendscript GitHub Wiki

On stackoverflow someone asked: "is there a way to programmatically run a shell command after a render has completed in Adobe After effects?"
source

var comp = app.project.items.addComp('test', 100, 100, 1, 1, 12); // create a comp
comp.layers.addSolid([0.5, 0.5, 0.5], 'solid', 100, 100, 1, 1); // add a solid
var rq_item = app.project.renderQueue.items.add(comp); // add the comp to the render queue
rq_item.outputModule(1).file = File('~/Desktop/out.mov'); // set the output path
rq_item.render = true; // set it to enabled (is the default)
// now add a function to the onStatusChange property of the render queue item
rq_item.onStatusChanged = function() {
  // as long as we have the RENDERING status
  while (rq_item.status === RQItemStatus.RENDERING) {
    $.writeln('Rendering');
  }
  // if it changes to Done
  // wired thing is it gets called 2 times
  // needs more investigation
  if (rq_item.status === RQItemStatus.DONE) {
    $.writeln('Done rendering');
    // now the system call
    // the call happens in a background process
    // there is no terminal window that opens
    var res = system.callSystem('echo "Hello World"');
    $.writeln(res); // show the result
  }
};
// start the render
app.project.renderQueue.render();
// handle possible app errors
app.onError = function(err) {
  $.writeln('ERROR ' + err);
};