convert svn: minor improvement to tag detection. The better way is probably to list the latest tags directory and look up the last log message for each entry. This is surprisingly annoying to do.

#!/bin/sh

hg init a
echo a > a/a
hg --cwd a ci -A -m a
hg clone a b
echo b > b/b
hg --cwd b ci -A -m b
chmod 100 a/.hg/store
hg --cwd b push ../a
chmod 700 a/.hg/store