setup.sh

#!/bin/sh
export PATH=$OPENSHIFT_RUNTIME_DIR/bin:$PATH
OPENSHIFT_ACTION_HOOKS_DIR=$OPENSHIFT_REPO_DIR/.openshift/action_hooks
cd $OPENSHIFT_TMP_DIR

#####
##### yaml
#####
install_yaml()
{
  # get and compile
  wget http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz
  tar xzf yaml-0.1.4.tar.gz
  cd yaml-0.1.4
  ./configure --prefix=$OPENSHIFT_RUNTIME_DIR
  make
  make install

  # clean up
  cd $OPENSHIFT_TMP_DIR
  rm -rf yaml*
}

#####
##### ruby
#####
install_ruby()
{
  # dont install if ruby is already 1.9.3
  if (( $(ruby -v | awk '{print $2 ~ "1.9.3"}') )); then
    return 0;
  fi

  install_yaml

  # get the source
  wget http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p194.tar.gz
  tar xzf ruby-1.9.3-p194.tar.gz
  # tell ruby about yaml.h and libyaml
  cd ruby-1.9.3-p194/ext/psych
  export C_INCLUDE_PATH=$OPENSHIFT_RUNTIME_DIR/include
  export LIBYAMLPATH=$OPENSHIFT_RUNTIME_DIR/lib
  sed -i '1i $LIBPATH << ENV["LIBYAMLPATH"]' extconf.rb

  # compile
  cd $OPENSHIFT_TMP_DIR/ruby-1.9.3-p194
  ./configure --enable-shared --disable-install-doc --prefix=$OPENSHIFT_RUNTIME_DIR
  make
  make install

  # clean up
  cd $OPENSHIFT_TMP_DIR
  rm -rf ruby*
}

#####
##### bundler
#####
install_bundler()
{
  gem install bundler

  # setup the pre-build script
  echo > $OPENSHIFT_ACTION_HOOKS_DIR/pre-build
  cat << 'EOF' > $OPENSHIFT_ACTION_HOOKS_DIR/pre-build
  data="${OPENSHIFT_DATA_DIR}/assets"
  assets="${OPENSHIFT_REPO_DIR}/public"
  # Make the data directory if it doesn't exist
  if [ ! -d "$data" ]; then
    mkdir $data;
  fi
  # Remove the assets directory if it's empty
  find $assets/assets -maxdepth 0 -type d -empty -delete 2> /dev/null
  # Try to make the symlink
  ln -s $data $assets 2> /dev/null
  if [ $? -gt 0 ]; then
    echo "Unable to create symlink to assets directory, using existing directory in repository"
  fi
EOF

  # setup the build script
  echo > $OPENSHIFT_ACTION_HOOKS_DIR/build
  cat << 'EOF' > $OPENSHIFT_ACTION_HOOKS_DIR/build
  export PATH=$OPENSHIFT_RUNTIME_DIR/bin:$PATH
  pushd ${OPENSHIFT_REPO_DIR} > /dev/null
  bundle install --deployment
  popd > /dev/null
EOF

  # setup the deploy script
  echo > $OPENSHIFT_ACTION_HOOKS_DIR/deploy
  cat << 'EOF' > $OPENSHIFT_ACTION_HOOKS_DIR/deploy
  export PATH=$OPENSHIFT_RUNTIME_DIR/bin:$PATH
  pushd ${OPENSHIFT_REPO_DIR} > /dev/null
  # Run db:migrate
  #bundle exec rake db:migrate RAILS_ENV="production"
  # Precompile the assets
  bundle exec rake assets:precompile RAILS_ENV="production"
  popd > /dev/null
EOF
}

#####
##### unicorn
#####
install_unicorn()
{
  gem install unicorn

  # setup the start script
  echo > $OPENSHIFT_ACTION_HOOKS_DIR/start
  cat << 'EOF' > $OPENSHIFT_ACTION_HOOKS_DIR/start
  #!/bin/bash
  export PATH=$OPENSHIFT_RUNTIME_DIR/bin:$PATH
  unicorn -l $OPENSHIFT_INTERNAL_IP:$OPENSHIFT_INTERNAL_PORT -E "production" -D
EOF

  # setup the stop script
  echo > $OPENSHIFT_ACTION_HOOKS_DIR/stop
  cat << 'EOF' > $OPENSHIFT_ACTION_HOOKS_DIR/stop
  #!/bin/bash
  export PATH=$OPENSHIFT_RUNTIME_DIR/bin:$PATH
  kill -s QUIT `ps -ef | grep "unicorn master" | grep -v grep | awk "{ print $2 }"`
EOF
}


install_ruby

cd $OPENSHIFT_REPO_DIR

install_bundler
install_unicorn