This installs grack and a fastcgi handler for it on your uberspace.

uberspace-install-grack.sh

#!/bin/sh

UBERSPACE_RUBY_1_8_PATH="/package/host/localhost/ruby-1.8.7-p352/bin/ruby"
UBERSPACE_USER_HTTP_HOST="http://`id -un`.`hostname`"

FCGI_SCRIPT_PATH="fcgi-bin/git.fcgi"
FCGI_SCRIPT_FS_PATH="${HOME}/${FCGI_SCRIPT_PATH}"
FCGI_SCRIPT_URL="${UBERSPACE_USER_HTTP_HOST}/${FCGI_SCRIPT_PATH}"

GRACK_PATH="${HOME}/.grack"
GRACK_LIB_PATH="${GRACK_PATH}/lib"
GRACK_REPOS_PATH="${GRACK_PATH}/repositories"
GRACK_CLONE_URL="git://github.com/schacon/grack.git"

if [ -f ${FCGI_SCRIPT_PATH} ] ; then
  echo "You already have a git.fcgi in your ~/fcgi-bin. Nothing to do here."
  exit 1
fi

if [ -d ${GRACK_PATH} ] ; then
  echo "You already have a ~/.grack directory. Nothing to do here."
  exit 2
fi

git clone ${GRACK_CLONE_URL} ${GRACK_PATH}

mkdir ${GRACK_REPOS_PATH}

cat > ${FCGI_SCRIPT_PATH} <<EOF
#!${UBERSPACE_RUBY_1_8_PATH}

\$LOAD_PATH.unshift '${GRACK_LIB_PATH}'

require 'rubygems'
require 'rack'
require 'git_http'

config = {
  :project_root => '${GRACK_REPOS_PATH}',
  :upload_pack => true,
  :receive_pack => false,
}

Rack::Handler::FastCGI.run(GitHttp::App.new(config))
EOF

chmod 755 ${FCGI_SCRIPT_PATH}


echo "You have now installed grack to your uberspace"
echo
echo "You can now create (or clone) bare repositories in"
echo "${GRACK_REPOS_PATH}"
echo "those will be made available under"
echo "${FCGI_SCRIPT_URL}"
echo
echo "Please note that repositories published that way are world-readable!"