Update to Import Folder As Layers.jsx

[jetrotal]

Since all the google results points to pages containing this code, I'm posting here an updated version that:

• Check both folders and subfolders.

• Uses Place from Action Commands, instead of doing repeated ctr+c / ctrl+v commands

• Condenses all of the actions in a single History task.

//based on https://github.com/ES-Collection/Photoshop-Scripts/blob/master/Import%20Folder%20As%20Layers.jsx
var obj = {};
var extRE = /\.(?:png|gif|jpg|bmp|tif|psd)$/i;
cTID = function(s) {
  return app.charIDToTypeID(s);
};
sTID = function(s) {
  return app.stringIDToTypeID(s);
};

function listFolders(folder, obj) {
  var files = folder.getFiles();
  for (var i = 0; i < files.length; i++) {
    var file = files[i];
    if (file instanceof Folder) {
      obj[file.name] = {};
      listFolders(file, obj[file.name]);
    } else {
      obj[file.name] = file;
    }
  }

  obj = sortObject(obj);
}

function sortObject(obj) {
  var sorted = {};
  var keys = [];
  for (var key in obj) {
    keys.push(key);
  }
  keys.sort(function(a, b) {
    var intA = parseInt(a.replace(/\D/g, ""));
    var intB = parseInt(b.replace(/\D/g, ""));
    if (isNaN(intA) || isNaN(intB)) {
      return a.localeCompare(b);
    } else {
      return intA - intB;
    }
  });
  for (var i = 0; i < keys.length; i++) {
    if (obj[keys[i]] instanceof Object) {
      sorted[keys[i]] = sortObject(obj[keys[i]]);
    } else {
      sorted[keys[i]] = obj[keys[i]];
    }
  }
  return sorted;
}

function createLayerSets(obj, parent) {
  for (var key in obj) {
    if (obj[key] instanceof Object) {
      if (key.match(extRE)) {
        placeFile(obj[key], parent.itemIndex -1);
      } else {
      var group = parent.layerSets.add();
      group.name = key;
      createLayerSets(obj[key], group);  
    }
    } else {
      var layer = parent.artLayers.add();
      layer.name = key;
    }
  }
}

function main(){
var folder = Folder.selectDialog("Select a folder to list");
if (folder != null) {
  listFolders(folder, obj);
  createLayerSets(obj, app.activeDocument);
}
}

app.activeDocument.suspendHistory ("Import Folders and Sub Folders", "main()");


function placeFile(filePath, index) {
  (function(enabled, withDialog) {
    if (void 0 == enabled || enabled) {
      enabled = withDialog ? DialogModes.ALL : DialogModes.NO;
      withDialog = new ActionDescriptor();
      withDialog.putInteger(cTID("Idnt"), 19);
      withDialog.putPath(cTID("null"), new File(filePath));
      withDialog.putEnumerated(cTID("FTcs"), cTID("QCSt"), sTID("QCSAverage"));
      var desc2 = new ActionDescriptor();
      desc2.putUnitDouble(cTID("Hrzn"), cTID("#Pxl"), 0);
      desc2.putUnitDouble(cTID("Vrtc"), cTID("#Pxl"), 0);
      withDialog.putObject(cTID("Ofst"), cTID("Ofst"), desc2);
      executeAction(cTID("Plc "), withDialog, enabled);
    }
  })();
  (function(enabled, withDialog) {
    if (void 0 == enabled || enabled) {
      enabled = withDialog ? DialogModes.ALL : DialogModes.NO;
      withDialog = new ActionDescriptor();
      var ref1 = new ActionReference();
      ref1.putEnumerated(cTID("Lyr "), cTID("Ordn"), cTID("Trgt"));
      withDialog.putReference(cTID("null"), ref1);
      ref1 = new ActionReference();
      ref1.putIndex(cTID("Lyr "), index);
      withDialog.putReference(cTID("T   "), ref1);
      withDialog.putBoolean(cTID("Adjs"), !1);
      withDialog.putInteger(cTID("Vrsn"), 5);
      ref1 = new ActionList();
      ref1.putInteger(428);
      withDialog.putList(cTID("LyrI"), ref1);
      executeAction(cTID("move"), withDialog, enabled);
    }
  })();
}
 

It was a lot of work, but it turned out better than anything else I have tried.