svnmeta: add a config option to use sqlite revmap This patch adds a config option to choose the revmap implementation. It's "plain" by default and can be set to "sqlite". The sqlite implementation will migrate data from the plain revmap while the "plain" implementation will complain if it sees the sqlite revmap. A class variable is added for setting the default revmap implementation, which is useful for testing.

#!/bin/sh
mkdir temp || exit 1
cd temp
svnadmin create repo
svn co file://`pwd`/repo wc
pushd wc
mkdir -p project/trunk
svn add project
svn ci -m 'trunk'
cd project/trunk
echo a > a
mkdir narf
svn add a narf
svn ci -m 'file and empty dir'
popd
svnadmin dump repo > ../empty_dir_in_trunk_not_repo_root.svndump
echo 'dump in empty_dir_in_trunk_not_repo_root.svndump'
echo 'you can probably delete temp now'