hg .hgrc example:
[hooks]
# commit is good for local repositories
commit.vcslog2mysql=vcslog2mysql -t hg
# incoming is good for remote repositories
#incoming.vcslog2mysql=vcslog2mysql -t hg

svn post-commit example:
REPOS="$1"
REV="$2"
vcslog2mysql -t svn -r file://$REPOS -i $REV