question about the recursive algorithm

Marc Aurèle La France tsi at tuyoix.net
Thu Jan 16 14:17:07 UTC 2025


On Thu, 2025-Jan-16, BP via rsync wrote:

> I always run rsync as follows: "sudo rsync -PaSHAXvi --del DIR1/
> DIR2". I would think that whenever I see in the output of this rsync
> command a few lines of the form A/B/... and then further down in the
> output again a few lines of the form A/B/... (dots are dirs or files),
> then every line between such two lines is also of this form.

> I then discovered that this is incorrect (incidentally, the order of the
> deleted files here below is not alphabetical?!):

>> f+++++++++ A/B/folder1/file1.mkv
>> f+++++++++ A/B/folder1/file2.mkv
> *deleting A/C/file3.tex
> *deleting A/C/file4.pdf
> *deleting A/C/file5.txt
> cd+++++++++ A/B/folder2/
>> f+++++++++ A/B/folder2/file6.html

> Is this expected? Reading the manual (section about inductive recursion)
> I would think that the only case where rsync jumps unfinished dirs would
> be the creation of empty dirs.

> But here's the real question: is my hypothesis correct when we restrict
> to just lines starting by >, and also to just lines which start by
> *deleting? In other words, does the sender never jump folder and back,
> and same the receiver (but combined they might, as shown above)?

> I would grately appreciate insights. Please, let me know!

Please see ...

https://bugzilla.samba.org/show_bug.cgi?id=6741

Marc.




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