Moved to https://github.com/xwp/git-scripts/blob/master/svn-git-up

svn-git-up.sh

#!/bin/bash
# Update Git and SVN repos checked out in the same directory. 
#
# Pass a branch name like 4.6 as the sole argument to checkout that branch. Otherwise, master/trunk is checked out.

set -ex

cd "$(dirname $0)"

git fetch origin --tags

git_branch=master
svn_path='^/trunk'
if [ ! -z "$1" ] && [ "$1" != 'master' ] && [ "$1" != 'trunk' ]; then
	git_branch=$1
	svn_path="^/branches/$1"
fi

git stash save
svn switch --force $svn_path
git checkout -f $git_branch
git reset --hard origin/$git_branch
svn up --force --accept=theirs-full

set +x

echo
echo "## svn status"
svn status | grep -Ev '^\?'

echo
echo "## git status"
git status -uno