Freature Request: Lock FTP on sync

[harryytm]

First of all, I think FreeFileSync is so far the best free(for freedom, not the price) file sync software, keep up the good job Zenju.

I've been using FreeFileSync on syncing FTPES folders for quite a while, I would like to use it for web development team to sync the website files between team members via a central FTP location, I've found that there was no sync.ffs_lock placed on the remote FTP site during FreeFileSync instances to prevent multiple synchronization tasks from reading and writing the same files.

I would like to know if this is the intended design or a design flaw in the FTP function. Thanks!

[Zenju]

The sync.ffs_lock handling has only been implemented for local file systems and network shares, because most of the technical infrastructure needed isn't available for FTP. For example uploading a file "sync.ffs_lock" to a server when the file already exists usually just overwrites it (depending on the FTP server setup), etc., etc.