Some people wish AD was in CVS  Since they she could do "cvs up" and
"svn commit" to keep AD in sync in a client svn repo.

After a little pondering,  I think you can actually get the same
workflow using our not-highly-publicized bzr branch of AD.  Note that
the most recent versions of bzr come with a tortoise-like GUI for
windoze even (I haven't tried it yet).  Also, bzr can directly
integrate with svn via svn 1.6 clients, though I haven't played much
with this yet.

I just updated to bzr 2.0.1 for OS 10.5 via the dmg here:
http://wiki.bazaar.canonical.com/Download from 1.8 something I had
before.

Also, note that I'm using a lightweight co from bzr - thus the
overhead of the .bzr files (~1.6 MB) is modest compared to the whole
size of AD (~60 MB) - here are the file totals after running the
operations below:

$ du -h -d1
1.6M	./.bzr
216K	./.svn
1.8M	./includes
832K	./misc
 58M	./modules
 76K		./profiles
 68K		./scripts
 56K		./sites
3.5M	./themes
 66M	.

The test of the workflow - start with Acquia Drupal 1.2.18 and commit
to svn, and then make a local change, commit to svn, then update to
the latest 1.2.20 cquia Drupal.  For test purposes I start by making a
local svn repo, so the svn ops are fast.

$ cd /tmp
$ svnadmin create svntrash
$ svn mkdir file:///tmp/svntrash/trunk
$ svn co file:///tmp/svntrash/trunk
$ cd trunk/

here we get an old rev of Acquia Drupal to test the update,
then add all the files (and dot files) to svn and commit.

$ bzr co --lightweight -r12 lp:~acquia/drupal/1.x-6.x .
$ svn add *
$ svn add .bzr*
$ svn add .htaccess
$ svn ci -m"Acquia Drupal via bzr co -r12"

Now we make a local change to .htaccess

$ nano .htaccess
$ svn diff
$ svn ci -m"local patch"

Now we update to the lastest Acquia Drupal:

$ bzr up

See lots of merge action happening, but generated messages like
"Conflict: can't delete [path] because it is not empty.  Not deleting.."
for 3x directories that bzr wanted to remove, but which still contained
.svn directories.  So I had to manually svn rm those - this is a rare case.

$ svn rm modules/acquia/apachesolr/contrib/apachesolr_attachments
$ svn rm modules/acquia/apachesolr/contrib/apachesolr_multisitesearch
$ svn rm modules/acquia/link/po

after this, bzr reports we are up to date, and update makes no changes:

$ bzr up

Now we take care of normal files that were added or removed, and
commit the result to svn.

$ svn status
$ svn status | grep '^!' | tr -d '!' | xargs svn rm
$ svn status | grep '^\?' | tr -d '?' | xargs svn add
$ svn ci -m"bzr update to current Acquia Drupal (r15)"

We can then still see the local patch compared to the stock code
using bzr diff:

$ bzr diff
=== modified file '.htaccess'
...




-- 
Peter M. Wolanin, Ph.D.
Momentum Specialist,  Acquia. Inc.