On Tue, 2010-12-07 at 14:29 +0000, Philip Martin wrote: > The current wcng code, format 22, puts all working nodes at op-depth=2. > The full op-depth code is enabled by defining SVN_WC__OP_DEPTH and, > although no schema changes are involved, the way the database is used > makes in incompatible with format 22 clients if working nodes are > present. So SVN_WC__OP_DEPTH will involve a format bump to 23. > > My current plan is to upgrade working copies automatically only if they > have no working nodes, i.e. no tree changes via add, delete, copy, etc. > Text and property modifications do not count as tree changes. Working > copies that have tree changes will need to be upgraded by running > diff/revert with a format 22 client followed by patch with a format 23 > client. > > Automatically upgrading with working nodes would involve rewriting the > op-depth and presence of the working nodes, as well as inserting some > additional working nodes. While it would be possible to write this > code, it's lot of work for a small return. It's only going to affect a > few developers. The 22-to-23 upgrade is distinct from the 1.6-to-wcng > upgrade. The 1.6 upgrade is the one that is important for general > users. It will, eventually, support upgrading with 1.6 tree changes. > > The SVN_WC__OP_DEPTH code now passes all the regression tests apart from > db-test 7 and upgrade_tests 15, both of which expect the pre-op-depth > behaviour. My current plan is that format bump will occur towards the > end of this week.
All sounds good to me. - Julian
