Script to install and to run librarian-puppet

librarian-puppet.sh

#!/bin/sh

# Check the received options in order to set up some variables
PREFER_PACKAGE=1
while getopts ":g" opt; do
  case $opt in
    g)
      echo "Using the gem installer"
      PREFER_PACKAGE=0
      ;;
    \?)
      echo "Invalid option: -$OPTARG" >&2
      ;;
  esac
done

PATH=$PATH:/usr/local/bin/

# Directory in which librarian-puppet should manage its modules directory
PUPPET_DIR=/etc/puppet/

$(which git > /dev/null 2>&1)
FOUND_GIT=$?
$(which librarian-puppet > /dev/null 2>&1)
FOUND_LP=$?
$(which apt-get > /dev/null 2>&1)
FOUND_APT=$?
$(which yum > /dev/null 2>&1)
FOUND_YUM=$?

InstallLibrarianPuppetGem () {
  echo 'Attempting to install librarian-puppet gem.'
  RUBY_VERSION=$(ruby -e 'print RUBY_VERSION')
  case "$RUBY_VERSION" in
    1.8.*)
      # For ruby 1.8.x librarian-puppet needs to use 'highline' 1.6.x
      # highline >= 1.7.0 requires ruby >= 1.9.3
      gem install highline --version "~>1.6.0" > /dev/null 2>&1
      # Install the most recent 1.x.x version, but not 2.x.x which needs Ruby 1.9
      gem install librarian-puppet --version "~>1"
      ;;
    *)
      gem install librarian-puppet
      ;;
  esac
  echo 'Librarian-puppet gem installed.'
}

if [ "${FOUND_YUM}" -eq '0' ]; then

  # Make sure Git is installed
  if [ "$FOUND_GIT" -ne '0' ]; then
    echo 'Attempting to install Git.'
    yum -q -y makecache
    yum -q -y install git
    echo 'Git installed.'
  fi

  # Make sure librarian-puppet is installed
  if [ "$FOUND_LP" -ne '0' ]; then
    InstallLibrarianPuppetGem
  fi

elif [ "${FOUND_APT}" -eq '0' ]; then

  apt-get -q -y update

  # Make sure Git is installed
  if [ "$FOUND_GIT" -ne '0' ]; then
    echo 'Attempting to install Git.'
    apt-get -q -y install git
    echo 'Git installed.'
  fi

  # Make sure librarian-puppet is installed
  if [ "$FOUND_LP" -ne '0' ]; then
    dpkg -s ruby-json >/dev/null 2>&1
    if [ $? -ne 0 -a -n "$(apt-cache search ruby-json)" ]; then
      # Try and install json dependency from package if possible
      apt-get -q -y install ruby-json
    else
      echo 'The ruby_json package was not installed (maybe, it was present). Attempting to install librarian-puppet anyway.'
    fi
    if [ -n "$(apt-cache search ruby1.9.1-dev)" ]; then
      apt-get -q -y install ruby1.9.1-dev
    fi
    InstallLibrarianPuppetGem
  fi

else
  echo 'No supported package installer available. You may need to install git and librarian-puppet manually.'
fi

if [ ! -d "$PUPPET_DIR" ]; then
  mkdir -p $PUPPET_DIR
fi
cp /vagrant/puppet/Puppetfile $PUPPET_DIR

cd $PUPPET_DIR && librarian-puppet install