Bash helper script for creating a Git repository on systems hosting them

create-git-repo.sh

#!/bin/bash
#
# create-git-repo
#
# Create and publish a Git repository so that it is able to be
# cloned via `git clone git@host:repo.git'.
#
# Author: Ross Paffett <ross@rosspaffett.com>

GIT_DATA="/var/git"          # Where to store the actual git repositories
GIT_USER="git"               # The system git user
GIT_HOME="/home/${GIT_USER}" # Create symlinks to repositories here

if [ -n "$1" ]; then
	export GIT_DIR="${GIT_DATA}/${1}.git"

	# Initialize the repository in $GIT_DATA
	if [ ! -d "$GIT_DIR" ]; then
		git init --bare
	else
		echo "warning: ${GIT_DIR} already exists, skipping repository creation"
	fi

	# Correct permissions and create convenience symlink
	if [ -d "$GIT_DIR" ]; then
		chown -R "${GIT_USER}:${GIT_USER}" "${GIT_DIR}"
		ln -s "$GIT_DIR" "${GIT_HOME}/$(basename $GIT_DIR)"
	else
		echo "error: ${GIT_DIR} was not created (\`git init' exited with code ${?})"
		exit 1
	fi
else
	echo "usage: create-git-repo NAME"
	exit 1
fi