ppg-clone

#!/bin/bash

PPG_EXEC_PATH=$( dirname $(readlink -f "${BASH_SOURCE[0]}" ) )
export GIT_SSH="${PPG_EXEC_PATH}/ppg-ssh"

if [[ -n "${PPG_DEBUG}" ]]; then
	set -x
fi

if [ -z "$1" ]; then
	echo >&2 "Need path to repository"
fi

basepath=$1

# trim trailing slash
if [[ "${basepath:${#basepath}-1:1}" = '/' ]]; then
	basepath="${basepath:0:${#basepath}-1}"
fi

# trim trailing puppet.git
if [[ "${basepath:${#basepath}-11:11}" = '/puppet.git' ]]; then
	basepath="${basepath:0:${#basepath}-11}"
fi

if [[ -d "/etc/puppet/.git" ]]; then
	echo >&2 "ERROR: /etc/puppet is already under git (or ppg)"
	echo >&2 "       control, refusing to init."
	exit 1
fi

echo "Cloning puppet repo from $basepath to a temporary directory"

# the main puppet config repo
git clone $basepath/puppet.git /etc/puppet.ppg.tmp.$$ || exit 1

if [[ -d /etc/puppet ]]; then
	ds=$(date -u --rfc-3339=date)
	echo "Backing up /etc/puppet as /etc/puppet.backup.$ds"
	mv /etc/puppet /etc/puppet.backup.$ds
fi
echo "Now moving puppet dir into /etc/puppet"
mv /etc/puppet.ppg.tmp.$$ /etc/puppet

pushd /etc/puppet >/dev/null || exit 1
if ! git branch -r | grep -q 'origin/production'; then
	echo "No production branch yet; staying on master"
else
	git branch --track production origin/production
	git checkout production
fi
popd >/dev/null