How do I locate the path of the folder in which the current script file is located?

Question

How do I locate the path of the current folder? I just want to be able to get the path of the folder so that I can manipulate the files in the folder without typing the path

Answer 1

Thanks to Corey's answer and to Thomas'one, here is a "full featured" version that shows the folder tree in the logger and every parents id as well... just for fun ;-)

function getScriptFolderTree() {
  var thisScript = getThisScriptInDrive();
  var names = []
  var Ids = []
  var folder = thisScript.getParents()[0];
  while (folder.getName() != "Root"){
      names.unshift(folder.getName());
      Ids.unshift(folder.getId());
    var parents = folder.getParents();
       var folder = parents[0];
  }
Logger.log('Root/'+names.join().replace(/,/g,'/'))  
Ids.unshift(DriveApp.getRootFolder().getId())
Logger.log(Ids)  
}


function getThisScriptInDrive() {
  return DriveApp.getFileById("poiuytrezazertyujhgfdsdcvcxyydryfhchfh");
}

(ID's are truncated intentionally)

Note that this script is working nicely but it strangely stops working if the 'random string' is modified... I imagine that the search engine in drive doesn't like the change but I have no serious explanation (comments welcome) but after a few minutes it works again ;-)