On 24 September 2016 at 15:36, Paul Hammant <p...@hammant.org> wrote: > In order to be able to do some Merkle-tree style functions on sets of files > canonically held in Subversion, it would be great to ask Svn for a SHA1 for > the files, or collections thereof from that node downwards. > > I would raise a new feature request direct into Svn, but the JIRA notes says > to not do that, and instead to come here to discuss. > > More info: the technology I'm playing with doesn't do a svn checkout, but > instead monitors the the repo via 'svn ls' (via polling). It is easiest to > hit up the root note and ask for a sha1, then walk the tree (remotely) to > get the actually changes nodes deeper in the tree. Sure, the revision > integer is there too - but I need to compare to a *local* representation of > the same tree that's not under subversion control, and I'll have to > calculate SHA1 of the resource immediately after bringing it down from the > server (rather that just trusting the server's version). > > Of course, I'm focussed on 'svn ls' and I am sure there are other functions > that could report the SHA1 too. > > Someone else might say SHA-2 or 3, and I'm happy to bow to their expertise. > The problem that SHA-1 checksum for files is optional: older repositories/servers may not have this information stored.
-- Ivan Zhakov
