svnserve protocol documentation doesn't explain what svndiff2 is

[Marat Radchenko]

Aye!

We're implementing svnserve-compatible server and noticed recent addition of
'accepts-svndiff2' capability. However, nothing is docs [1] describes what is
"svndiff2 deltas".

[1]: https://svn.apache.org/viewvc/subversion/trunk/subversion/libsvn_ra_svn/
protocol?revision=1818581&view=markup#l191

[Daniel Shahaf]

Post by Marat Radchenko
We're implementing svnserve-compatible server

You're welcome to do so, but be advised that the ra_svn protocol is not
a public API. (We promise compatibility at the C API level, not at the
wire protocol level.)

Post by Marat Radchenko
and noticed recent addition of
'accepts-svndiff2' capability. However, nothing is docs [1] describes what is
"svndiff2 deltas".

svndiff2 deltas are compressed with lz4. They're new in 1.10:

https://subversion.apache.org/docs/release-notes/1.10#lz4
https://svn.apache.org/repos/asf/subversion/branches/1.10.x/notes/svndiff

Cheers,

Daniel