Add command line options --mdate-from --mdate-until

[gfm-rock-solid]

Thanks for developing this software. I appreciate it a lot.

This is a feature request, which should be possible to be implement easily.

Add command line options

• --mdate-after
• --mdate-before
• --cdate-after
• --cdate-before
• --timezone "UTC"/"CET"/"UTC+x"...

that take a date stamp in format [yyyy-mm-dd][T][HH:MM:SS.SSS]. Default day is today, default time is 00:00:00.000. T is only regarded, if date and time are given. Otherwise simply ignored.

Giving these arguments syncs only files, that had been changed before/after a certain make/change date. All given options are combined via logical AND. Logical OR is reflected by two (or more) runs of rsync.

I stumbled across this, when I wanted to sync my phone to the PC. It can also accelerate the process a lot, if I have some extra information about my system.