accurate progress for UI

[Robert DuToit]

Thanks Matt,
That does it. I know at least there is the option now.  Rob

On Jan 29, 2008, at 2:34 PM, Matt McCutchen wrote:

> On Tue, 2008-01-29 at 14:25 -0500, Robert DuToit wrote:
>> I made a Mac UI application and am running rsync 3 from "do shell
>> script" (applescript) and am trying to parse the output so I can  
>> get a
>> progress bar to give a fairly true reading of size , or # of files,
>> copied. I notice that the output reads for example,
>>
>> ..... 1650 of 8345 files to copy
>>
>> and then later
>>
>> ....30 of  11345  files to copy
>>
>> and eventually down to
>>
>> ....1 of  18000  files to copy
>>
>> So I get the idea that rsync 3 is reading in "batches" or at least
>> doesn't give the total # of files up front (like apple rsync or  
>> rsyncx
>> does with a true % ) so you get  what looks like an exaggerated fast
>> beginning on the progress bar which then slows to a crawl as it nears
>> the finish line.
>>
>> Is there any way to get progress to give a more overall picture. I
>> tried --stats which didn't work at all and -v and of course --
>> progress. Just wondering if I have missed something.
>
> Well, you can disable incremental recursion and force rsync to scan  
> all
> the files up front by passing --no-i-r.  If you pass -v and -- 
> progress,
> the initial scan will print " N files..." messages that you can show  
> to
> give the user an idea of the scan progress.  Once the scan is  
> finished,
> the total won't change.
>
> With this approach, your rsync GUI will act like the Finder copy
> operation that (IIRC) scans the files up front, saying something like
> "Preparing to copy... N files" as it does so.
>
> Matt
>