Automatic image stacking in Bridge CC by filename.

Question

Hi,
I work at a CGI Studio and we use Bridge to acess and manage our library of textures etc.
Now textures usually consist of several seperate image files, let's say three (_DIFFUSE, _BUMP, _SPECULAR)
The filename of these three files, say they're from a wood material, would always be like "Wood-"+counter+"_DIFFUSE", example: "Wood-003_DIFFUSE.jpg", "Wood-003_BUMP.jpg" and "Wood-003_SPECULAR.jpg"
Now I manually grouped the three seperate image files together so I have a stack of three. The thing is we got hundreds of those 3-file-images.
Basically I need a way to automatically stack all the images which have the same beginning/pattern
Related: I did this once manually but for some reason Bridge messed up after a few days and got them all half-*** together and jumbled them around resulting in all files still being there but not properly stacked anymore...
Now I know my way around proprietary scripting languages and am familiar with stuff in general. Do I need to do scripting here or is there a better way to do so?
How would I start? Where? Has anyone links to a solution for this (I think common) problem?

Answer 1

Here is one solution.
#target bridge 
   if( BridgeTalk.appName == "bridge" ) { 
woodStack = MenuElement.create("command", "Wood Stack", "at the end of submenu/Stack");
woodStack.onSelect = function () {
var fileList = Folder(app.document.presentationPath).getFiles("*diffuse*");
for(var a in fileList){
    var firstFile = decodeURI(fileList[a].name.match(/[^_]*/));
    var filesToStack = Folder(app.document.presentationPath).getFiles("*"+firstFile+"*");
    if(filesToStack.length == 3) {
        app.document.deselectAll();
        for(var s in filesToStack){
        app.document.select(new Thumbnail(filesToStack[s]));
    app.document.chooseMenuItem("StackGroup");
Copy and paste the script into ExtendScript Toolkit or a PLAIN TEXT editor.
Then save it out as filename.jsx
The correct folder to save the script can be found by opening Bridge, going to the preferences - Startup Scripts and clicking on the "Reveal my startup scripts" button.
Once saved close and re-start Bridge.
To use, selected the folder you want to stack the groups of files and select Stacks - Wood Stack