I have searched about 30 threads, a load of Google pages and cannot find what I am looking for. I have some of the parts but not the whole. I cannot seem to get the puzzle fit together.

I have three folders, two of which contain different versions of multiple files, dist/file1.php dist/file2.php etc and dist_old/file1.php dist_old/file2.php etc.

The third folder contains only the changed files between the two. If /dist/file1.php differs from /dist_old/file1.php then a file named dist_upgrade/file1.php exists with the same contents as dist/file1.php.

Currently I am manually coping the different files using winmerge and I would like to automate some of this if possible.

What I would like to do is compare the dist folder with the dist_old folder then have files that are not the same copied to dist_upgrade/file.ext retaining the directory structure and full contents of the new file in the dist folder.

Thanks for any advice,
Best Regards,
Brandon