[ubuntu-za] bzr nested trees

[Charl Wentzel]

Thanks Marius.

That's too bad.  Git already has working submodules, but it lacks the
native recursive operations that is proposed for bzr.  I guess I'll just
have to wait. then.

Charl

On Fri, 2009-07-03 at 03:35 +0200, Marius Kruger wrote:

> hi
> 
> 2009/7/2 Charl Wentzel <charl.wentzel at vodamail.co.za>
> >
> > Hi Guys
> >
> > Has anybody done nested trees on bzr yet?
> 
> I haven't
> 
> >
> > I tried to use it on the latest stable release (1.61) but it seems this is only available in the development version.  Can anybody confirm this?
> 
> As far as I can tell "not all of the nested-trees work has been merged yet."
> This is the latest thread on the bazaar mailing list on this topic:
> https://lists.ubuntu.com/archives/bazaar/2009q3/060130.html
> (I had to go dig a bit, as I've been a little out of touch since
> coming back from holiday)
> 
> There is definitely some things that have not landed yet (see below)
> So there might be some support but everything might not be there yet.
> 
> https://code.edge.launchpad.net/~abentley/bzr/nested-trees-composite-tree/+merge/6264
> interesting excerpt from there:
> ================
> 1268=== added file 'doc/developers/nested-trees.txt'
> 1269--- doc/developers/nested-trees.txt 1970-01-01 00:00:00 +0000
> 1270+++ doc/developers/nested-trees.txt 2009-05-06 18:02:20 +0000
> 1271@@ -0,0 +1,28 @@
> 1272+Nested Trees Implementation
> 1273+###########################
> 1274+
> 1275+CompositeTree
> 1276+-------------
> 1277+CompositeTree is a shim to enable subtree support for certain commands.
> 1278+
> 1279+It is constructed from a Tree (typically a RevisionTree or
> WorkingTree) and a
> 1280+Branch. It provides an alternate view of the Tree and its
> subtrees, in which
> 1281+the subtrees and their contents appear to be part of the root
> tree. The roots
> 1282+of subtrees are presented as directories, not as tree references.
> 1283+
> 1284+It can be used with export, diff and status. It should be tested with every
> 1285+command that uses it, because it is not guaranteed to be a complete
> 1286+implementation of the Tree API. It is not suitable as input to
> operations that
> 1287+must know about the locations of subtrees, such as revert.
> 1288+
> 1289+
> 1290+NestedTrees
> 1291+-----------
> 1292+NestedTrees is an API providing access to a set of nested trees.
> It is able to
> 1293+convert paths and file-ids into references to specific Trees. It provides
> 1294+caching, to avoid retrieving the same Tree multiple times. It provides
> 1295+locking, to ensure trees are locked and unlocked at appropriate times.
> 1296+
> 1297+It is used by CompositeTree, and is a recommended API for all
> other operations.
> 1298+It is expected to acquire more capabilities as the needs of sets of nested
> 1299+trees become clearer.
> ================
> 
> BTW. you should feel free to send this sort of question to the bazaar
> mailinglist: bazaar at lists.canonical.com (its a little high volume
> though)
> 
> regards
> marius
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