Automated install of Git host on Ubuntu 10.04 with authorization and web interface for browsing

install-git.sh

#!/bin/sh

#
# install required packages
#
apt-get install apache2 git-core gitweb

#
# create folder to host the repositories
#
mkdir /srv/git

#
# create apache configuration to serve both the git repos and gitweb under /git
#
cat > /etc/apache2/conf.d/git << EOF 
#GIT
SetEnv GIT_PROJECT_ROOT /srv/git/
SetEnv GIT_HTTP_EXPORT_ALL
ScriptAliasMatch \\
    "(?x)^/git/(.*/(HEAD | \\
        info/refs | \\
        objects/(info/[^/]+ | \\
            [0-9a-f]{2}/[0-9a-f]{38} | \\
            pack/pack-[0-9a-f]{40}\.(pack|idx)) | \\
        git-(upload|receive)-pack))\$" \\
    /usr/lib/git-core/git-http-backend/\$1
ScriptAlias /git /usr/share/gitweb/index.cgi

<LocationMatch "^/git/.*/git-receive-pack\$">
    AuthType Basic
    AuthName "Git repository"
    AuthUserFile /srv/git/users
    Require valid-user
</LocationMatch>
EOF

#
# make the necessary symbolic link for gitweb to work properly
#
ln -s /usr/share/gitweb/gitweb.js /var/www

#
# create user john (you'll have to provide the password twice here!)
#
echo "Setting up user 'john'. You'll be prompted to enter John's password twice now."
htpasswd -c /srv/git/users john

#
# create a script to create new repositories (needs to be executed as root!)
#
cat > /srv/git/create.sh << EOF 
#!/bin/sh
git init --bare \$1.git
cd \$1.git
git config http.receivepack true
git config gitweb.owner "John Doe"
cd ..
chown www-data:www-data -R \$1.git
EOF

chmod +x /srv/git/create.sh

#
# use the create.sh script to create a repository
#
cd /srv/git
./create.sh example

#
# update parent path for repositories for gitweb
#
sed -e "s/\/var\/cache\/git/\/srv\/git/" -i /etc/gitweb.conf

#
# update permissions so that apache can serve the repos
#
chown www-data:www-data -R /srv/git

#
# restart apache so that all the changes can take effect
#
invoke-rc.d apache2 restart

awesome !!!