Some of you will be aware of my recent problems with Google Drive when it came to changing ownership of files so that I could delete user accounts and set up new accounts and grant permissions from a 'super admin' account.
I have been left with some duplicated folders, most of the contents are also duplicated but Folder A may contain things that Folder B is missing and vice versa. The reasons for the dupes are two fold, even though some parent folders were owned by one account, as another account created subfolders and files they had ownership so each of the migrated accounts contained a folder with the same name. Secondly, Google Drive allows you to have files/folders with the same name in the same directory (ridiculous feature).
I have synced all of the folders down to a PC as there is no decent way of dealing with dupes online in Google Drive so a third party utility needs to be used. I intend to make a backup copy of the dupes and then run a tool on the folders to merge them but the problem is each of the dupe folders may have a more up to date version of any given file so I can't copy/paste Folder B into Folder A and tell windows to skip all dupes as some updated documents may be lost. There are tens of thousands of files so I can't do it manually either.
I have looked at WinMerge but it doesn't seem to have an efficient method. I guess what I am looking for is an app that allows me to copy the contents of folder B into folder A and tell it to use the file that is newer/larger if there is a conflict, if the file is older but larger then ask me to manually decide. Does anyone know of anything like this?