dietpi-explorer: add mtime stamps to file/dir list

[MichaIng]

This makes it easier to see chronological orders, valuable in some cases. E.g. dietpi-backup rotates data dirs to become data_2, data_3 etc. It is not obvious whether the ones with higher index are newer or older (the latter is true): #8111

[Dynamic5912]

Without over-complicating matters -
I know the same can be achieved with the DietPi Dashboard - what is the feasibility of adding a file upload/download option as well into dietpi-explorer?

Also regards timestamps - would these be created time, modified time etc?

[MichaIng]

dietpi-explorer is a TUI utility. From/to where would an upload/download happen?

Also regards timestamps - would these be created time, modified time etc?

As the topic states, I'd use the mtime (=modification time), which equals what e.g. ls -l shows. In case of dietpi-backup, we'd need to check whether rotating the oldest backup like data_9 back to first to be recycled, and doing the rsync on it, updates the mtime of the directory itself. If not, we could do a touch /path/to/data to force an update of the mtime.

... or we use the timestamp as suffix for rotated backup directories. But that really is an own topic.