Script to rename files that have similar names?

Question

Hi, folks.
I have my  RAW files in one folder and my derivative images (e.g., PSDs, TIFFs,  JPEGs) in another.  The derivative files only share the last four digits  of the RAW file names (e.g., the RAW file is named 100826-14278.CR2 but  the JPEG version is only named 4278.JPG).  Also, the derivative files  have no metadata.
Is there a way to use a script to match all the  derivatives to the RAW files based on the last four digits, then change their file names  to match the RAW names.  And, if that's possible, can Bridge then  cascade the metadata minus the camera data EXIF from the RAW files to  the derivative files?
Thanks!
-Greg
P.S. My knowledge of scripting stops with cursive handwriting, so please be gentle.

Answer 1

Thanks the coffee was great!
Here is a new version with subfolder support. Just select the folders as normal and it will search derivitive subfolders.
#target bridge  
if( BridgeTalk.appName == "bridge" ) { 
var newMenuData = new MenuElement( "menu", "Add_Metadata", "after Help", "myMetaData" );
var newDataCommand = new MenuElement( "command", "Rename and Add Metadata", "at the end of myMetaData" , "zxcv" );
newDataCommand.onSelect = function () {
   renamePutXMP();
function renamePutXMP(){
var win = new Window('dialog','Rename and Add Metadata');
g = win.graphics;
var myBrush = g.newBrush(g.BrushType.SOLID_COLOR, [0.99, 0.99, 0.99, 1]);
g.backgroundColor = myBrush;
win.alignChildren="row";
win.g10 = win.add('group');
win.g10.orientation = "row";
win.title = win.g10.add('statictext',undefined,'Rename / Add Metadata');
win.title.helpTip="Compliments of Paul";
win.title.alignment="bottom";
var g = win.title.graphics;
g.font = ScriptUI.newFont("Georgia","BOLDITALIC",22);
win.p1= win.add("panel", undefined, undefined, {borderStyle:"black"});
win.p1.alignChildren="fill";
win.g5 =win.p1.add('group');
win.g5.spacing=10;
win.g5.st1 = win.g5.add('statictext',undefined,'Raw Files');
win.g5.st1.preferredSize=[100,20];
win.g5.et1 = win.g5.add('edittext');
win.g5.et1.preferredSize=[250,20];
win.g5.et1.enabled=false;
win.g5.bu1 = win.g5.add('button',undefined,'Browse');
win.g10 =win.p1.add('group');
win.g10.spacing=10;
win.g10.st1 = win.g10.add('statictext',undefined,'Derivative Images');
win.g10.st1.preferredSize=[100,20];
win.g10.et1 = win.g10.add('edittext');
win.g10.et1.preferredSize=[250,20];
win.g10.et1.enabled=false;
win.g10.bu1 = win.g10.add('button',undefined,'Browse');
win.g15 =win.p1.add('group');
win.g15.orientation='row';
win.g15.alignment="top";
win.g15.spacing=10;
win.g15.bu1 = win.g15.add('button',undefined,'Process');
win.g15.bu1.preferredSize=[200,30];
win.g15.bu2 = win.g15.add('button',undefined,'Cancel');
win.g15.bu2.preferredSize=[200,30];
win.g5.bu1.onClick=function(){
     rawFolder = Folder.selectDialog("Please select the raw files folder",app.document.presentationPath);
     if(rawFolder !=null){
  win.g5.et1.text =  decodeURI(rawFolder.fsName);
win.g10.bu1.onClick=function(){
     derivativeFolder = Folder.selectDialog("Please select the derivative files folder",app.document.presentationPath);
     if(derivativeFolder !=null){
  win.g10.et1.text =  decodeURI(derivativeFolder.fsName);
win.g15.bu1.onClick=function(){
    if(win.g5.et1.text == ''){
        alert("No Raw folder selected!");
        return;
    if(win.g10.et1.text == ''){
        alert("No Derivative folder selected!");
        return;
    win.close(1);
    process(rawFolder,derivativeFolder);
win.center();
win.show();
function process(rawFolder,derivativeFolder){
var rawFiles = rawFolder.getFiles (/\.(cr2|crw|tif|jpg)$/i);
if(!rawFiles.length){alert("There are no raw files to be processed!"); return;}
var derivativeFiles=derivativeFolder.getFiles (/\.(jpg|tif|psd)$/i);
if(!derivativeFiles.length){alert("There are no derivative files to be processed!"); return;}
var folderList=[];
getFolders(derivativeFolder);
folderList.unshift (derivativeFolder);
derivativeFiles=[];
for (var a in rawFiles){
var Name = decodeURI(rawFiles[a].name).replace(/\.[^\.]+$/, '');
var fileMask = Name.match(/\d\d\d\d$/)+"*.*";
var destFiles=[];
for(var z in folderList){
var destF = folderList[z].getFiles(fileMask);
for(var s in destF){destFiles.push(destF[s])}
for(var z in destFiles){
var Ext = decodeURI(destFiles[z].name).replace(/^.*\./,'');
var destName = decodeURI(destFiles[z].name).replace(/\.[^\.]+$/, '');
destName.substring(4)
   destFiles[z].rename(Name+destName.substring(4)+"."+Ext);
function getFolders(folder) {
    var fileList = folder.getFiles();
     for (var i = 0; i < fileList.length; i++) {
        var file = fileList[i];
if (file instanceof Folder) {
folderList.push(file); 
        getFolders(file);
$.sleep(300);
for (var a in rawFiles){
var Name = decodeURI(rawFiles[a].name).replace(/\.[^\.]+$/, '');
fileMask = Name + "*.*";
var destFiles=[];
for(var z in folderList){
var destF = folderList[z].getFiles(fileMask);
for(var s in destF){destFiles.push(destF[s])}
for(var z in destFiles){
    if(decodeURI(destFiles[z].name).match(/thm$/i)) continue;
updateMetaData(rawFiles[a],destFiles[z])
function updateMetaData(sourceFile,destFile){
if (ExternalObject.AdobeXMPScript == undefined)  ExternalObject.AdobeXMPScript = new ExternalObject("lib:AdobeXMPScript");
sourceFile = new Thumbnail(File(sourceFile));
destFile = new Thumbnail(File(destFile));
var md = sourceFile.synchronousMetadata;
var source = new XMPMeta( md.serialize() );
var md2 = destFile.synchronousMetadata;
var dest = new XMPMeta( md2.serialize() );
try{
copySchema( source, dest,XMPConst.NS_CAMERA_RAW,["RawFileName"]); 
copySchema( source, dest,XMPConst.NS_EXIF,["PixelXDimension","PixelYDimension","ExposureTime","FNumber"]);
copySchema( source, dest,XMPConst.NS_DC,[]);
copySchema( source, dest,XMPConst.NS_XMP_RIGHTS,[]);
copySchema( source, dest,XMPConst.NS_IPTC_CORE,[]);
var updatedPacket = dest.serialize(XMPConst.SERIALIZE_OMIT_PACKET_WRAPPER | XMPConst.SERIALIZE_USE_COMPACT_FORMAT);
destFile.metadata = new Metadata(updatedPacket);
app.document.refresh();
}catch(e){alert(e+" "+e.line);}
function copySchema( source, dest, namespace, omitProps ) { 
var propIter = source.iterator(XMPConst.ITERATOR_JUST_CHILDREN | XMPConst.ITERATOR_JUST_LEAF_NAME, namespace, "" );
var prop = propIter.next();
var prefix = XMPMeta.getNamespacePrefix( namespace );
while(prop) {     
  var name = prop.path.substring( prefix.length );    
   if(omitProps != undefined) var copy = !contains( omitProps, name);
  if( copy ) {
            try{
   XMPUtils.duplicateSubtree( source, dest, namespace, prop.path,namespace, prop.path, 0 );       
            }catch(e){}
  prop = propIter.next();
function contains( arr, member ){
var r = false;
for( var i = 0; i < arr.length &! r; ++i  ) {
  r = arr[i] == member;
return r;