Re: changing the "sort" order of "--get-all-files"

Hi,

git push failed, now should be there ;)

Ciao, Marcus
On Fri, May 19, 2023 at 11:09:09AM -0400, Adam Chasen via Gphoto-devel wrote:
> Great news! I see the FLAGS_REVERSE in my checkout, but no recent commits. Is https://github.com/gphoto/gphoto2 the location of your branch?
> 
> Thanks,
> Adam
> 
> On Fri, May 19, 2023, at 05:17, Marcus Meissner wrote:
> > On Thu, May 18, 2023 at 02:51:00PM -0400, Adam Chasen via Gphoto-devel wrote:
> >> I would like to create a patch which would reverse the sort order of "--get-all-files" (with --skip existing). In the case of my Sony RX100M3, the files are organized by date and are sorted from oldest to newest. I would prefer newest files to be pulled down first. The speed of PTPIP on this camera is pretty bad taking several seconds for each directory listing. 
> >> 
> >> I found the functions in libgphoto2 which are responsible for listing the directories, but am struggling to trace the execution of gphoto CLI with "--get-all-files" to the sequence of "list all folders" (and skip if present). I believe it is similar to the "-l" call which starts with listing of the root and recursively lists all folders.
> >> 
> >> Any pointers on following the code from execution to downloading for a call with `--get-all-files`?
> >> 
> >> Aside, an option to stop syncing when we run in to a "date folder" where everything is "skipped" would be handy.
> >> 
> >> Another aside, the camera communication stability isn't great and often locks up before it even has a chance to list the 100 directories.
> >
> > for_each_file_in_range is the function doing that.
> >
> > Someone seems to have added a REVERSE flag there already, but not
> > configured it to be set anywhere.
> >
> > I just added code to gphoto2 master  to add a --reverse option.
> >
> > Can you try?
> >
> > Ciao, Marcus
> 
> 
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