Eric Johnson wrote on Fri, Jul 22, 2016 at 09:27:50 -0700: > Hi Lars, > > On 7/22/16 1:56 AM, Krueger, Lars (CQSE) wrote: > >Hello together, > >I need to know how SVN ensures that each item (comminting or updateing) is > >correctly transmitted from/ to a repository. If I use ‘svn info’ command I > >can see a ‘Checksum’ for a file. Do you use this Checksum? > > I have not examined the code. I can say, however, in the years that I've > been lurking on this list, I've *never* seen anyone report an issue with a > file being corrupted in transit to the server. I assume that is because the > answer to your question is emphatically, "yes". >
Yes, we use checksums in both directions. The checksum is usually sha1 although it may be md5 for old data [written by 1.5(?) and older]. > Of course, it is open source, so you can go look at the code. I was curious > whether I could find it. This seems like the right file. I see references to > "checksum" in their, so that's promising. > https://svn.apache.org/repos/asf/subversion/trunk/subversion/libsvn_client/commit.c > My answer would be the open_file/apply_textdelta/close_file sequence from the svn_delta_editor_t type. These three are the interface that transmits a versioned file across the wire. Cheers, Daniel
