A push-enabled GIT configuration for Apache / cgi-bin / public-html. Place both files in your `public_html` folder, create a corresponding `.htpasswd` file & enjoy.

.htaccess

AddHandler cgi-script .cgi

<Files "git.cgi">
	Require valid-user
	AuthType Basic
	AuthName "GIT Access"
	AuthUserFile /path/to/.htpasswd.git
</Files>

git.cgi

#!/bin/bash

# Configuration:
# The base directory for your repositories, must be writable for the server
GIT_PROJECT_BASE=/path/to/git/
# A mail address to send reports on new repositories to
MAIL=pberndt

INFO=(`echo ${PATH_INFO} | sed -nre 's#^/([^/\.]+)(/.+)?#\1 \2#p'`)
REPOSITORY="${INFO[0]}"
export PATH_INFO="${INFO[*]:1}"

if [ -z "$REPOSITORY" -o "$PATH_INFO" = "/" ]; then
	cat <<EOF
Status: 200 Ok
Content-type: text/html; charset=utf-8

<h1>GIT repositories</h1>
<p>
	Welcome to this GIT repository hub. You seem to have accessed this page
	from your web browser. That's not how it's done. See <a
	href="http://git-scm.com/book/">http://git-scm.com/book/</a> for an
	introduction to GIT.
</p>
<p>
	To access these repositories, clone them using git:
</p>
<pre>
	git clone http://${REMOTE_USER}@${SERVER_NAME}${SCRIPT_NAME}/${REPOSITORY:-&lt;repository name&gt;}/
</pre>
EOF

	exit
fi

export GIT_PROJECT_ROOT=${GIT_PROJECT_BASE}/${REPOSITORY}
export GIT_HTTP_EXPORT_ALL=1

if ! [ -d "$GIT_PROJECT_ROOT" ]; then
	if ! mkdir $GIT_PROJECT_ROOT; then
		echo -e "Status: 404 Not found\r\n"
		exit
	fi
	(cd $GIT_PROJECT_ROOT && git init --bare && git update-server-info && mv hooks/post-update.sample hooks/post-update) >/dev/null
	env | mail -s "New git repositoy $REPOSITORY created in public_html" $MAIL
fi

exec git http-backend