init_rbenv

#!/bin/bash

BUNDLER_VERSION="1.11.2"

export RBENV_VERSION=$(cat .ruby-version)
export RBENV_ROOT=$HOME/.rbenv

unset GEM_PATH
unset GEM_HOME

if [ ! -d $RBENV_ROOT ]; then
    echo "Installing rbenv."
    git clone git://github.com/sstephenson/rbenv.git $RBENV_ROOT
fi

if [ ! -d $RBENV_ROOT/plugins/rbenv-update ]; then
    echo "Installing rbenv-update plugin."
    git clone https://github.com/rkh/rbenv-update.git $RBENV_ROOT/plugins/rbenv-update
fi

if [ ! -d $RBENV_ROOT/plugins/ruby-build ]; then
    echo "Installing ruby-build plugin."
    git clone https://github.com/sstephenson/ruby-build.git $RBENV_ROOT/plugins/ruby-build
fi

if [ ! -d $RBENV_ROOT/plugins/rbenv-gemset ]; then
    echo "Installing rbenv-gemset plugin."
    git clone https://github.com/jf/rbenv-gemset.git $RBENV_ROOT/plugins/rbenv-gemset
fi

if [ ! -d $RBENV_ROOT/plugins/rbenv-vars ]; then
    echo "Installing rbenv-vars plugin."
    git clone https://github.com/sstephenson/rbenv-vars.git $RBENV_ROOT/plugins/rbenv-vars
fi

if [ ! -d $RBENV_ROOT/versions/$RBENV_VERSION ]; then
    echo "Installing ruby ${RBENV_VERSION}."
    $RBENV_ROOT/bin/rbenv update
    $RBENV_ROOT/bin/rbenv install $RBENV_VERSION

    if [[ $RBENV_VERSION =~ "jruby" ]]; then
      # should be the same as pristine since this is a new install, but `gem pristine` hits file permissions errors the first time
      $RBENV_ROOT/bin/rbenv exec gem install jruby-launcher
    fi

    echo "done"
elif [[ ("true" = "${RBENV_UPDATE:-false}") || ($(uname -a) =~ Darwin) ]]; then
    echo "Updating rbenv..."
    $RBENV_ROOT/bin/rbenv update
else
    echo "Environment up to date, ruby version: $RBENV_VERSION"
fi

if ! (echo $PATH | grep -F "$RBENV_ROOT" > /dev/null 2>&1 && grep -F 'export PATH="$HOME/.rbenv' $HOME/.bash_profile 2>&1 > /dev/null); then
  echo "Adding rbenv to PATH"
  echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> $HOME/.bash_profile
  export PATH="$RBENV_ROOT/bin:$PATH"
fi

if ! (type rbenv > /dev/null 2>&1 && grep -F 'eval "$(rbenv init -)"' $HOME/.bash_profile 2>&1 > /dev/null); then
  echo "Initializing rbenv in your .bash_profile"
  echo 'eval "$(rbenv init -)"' >> $HOME/.bash_profile
  eval "$(rbenv init -)"
fi

if ! ($RBENV_ROOT/shims/bundle --version 2> /dev/null | grep -F "$BUNDLER_VERSION" > /dev/null 2>&1); then
    echo "installing bundler $BUNDLER_VERSION"
    cmd="$RBENV_ROOT/bin/rbenv exec gem install --no-ri --no-rdoc bundler -v $BUNDLER_VERSION"
    echo "executing: $cmd"
    $cmd
    echo "done, result: $?"
fi
unset BUNDLER_VERSION

$RBENV_ROOT/bin/rbenv exec ruby -S bundle install
$RBENV_ROOT/bin/rbenv rehash