#!/bin/bash

user=`whoami`
if [ "$user" = "root" ] ; then
  echo -e "\033[0;31m <e> \033[0mroot user support is not implemented yet.\033[0m"
  exit 1
fi
cwd=$(pwd)
source_dir="${source_dir:-`dirname $0 | xargs dirname`}"
if [ ! -d "$source_dir" ] ; then unset source_dir ; fi
source_dir="${source_dir:-$cwd}"
rvm_dir=~/.rvm

info="\n\033[0;32m<i>\033[0m"

echo -e "$info Updating rvm source ~/.rvm/scripts/rvm ..."
for dir in src scripts bin log archives config gems examples ; do
  mkdir -p $rvm_dir/$dir
done

echo -e "\n\033[0;32m<i>\033[0m Ensuring that rvm script location in $file is scripts/rvm not bin/rvm for: ~/.bash_profile, ~/.bashrc, ~/.zshrc"
for file in ~/.bash_profile ~/.bashrc ~/.zshrc ; do
  if [ -s $file ] ; then sed -i.orig 's/rvm\/bin\/rvm/rvm\/scripts\/rvm/g' $file ; fi
done

if [ -f ~/.rvm/bin/rvm ] ; then
  echo -e "\n\033[0;32m<i>\033[0m Removing old rvm file from ~/.rvm/bin/rvm"
  rm -f ~/.rvm/bin/rvm
fi

for dir in config scripts examples ; do
  mkdir -p $rvm_dir/$dir
  for file in `/bin/ls $source_dir/$dir/`; do
    cp $source_dir/$dir/$file $rvm_dir/$dir/$file
  done
done

system=`uname`
if [ "$system" = "Linux" ] ; then
  rvm_apt_get_binary=`which apt-get 2> /dev/null`
  rvm_emerge_binary=`which emerge 2> /dev/null`
  rvm_pacman_binary=`which pacman 2> /dev/null`
  rvm_yum_binary=`which yum 2> /dev/null`

  echo -e "\033[0;33m <w> \033[0mFor jRuby & ree (if you wish to use it) you will need:"
  if [ ! -z "$rvm_apt_get_binary" ] ; then
    echo -e "\033[0;32m <i> \033[0msudo apt-get install sun-java6-bin sun-java6-jre sun-java6-jdk libreadline5-dev libssl-dev "

  elif [ ! -z "$rvm_emerge_binary" ] ; then
    echo -e "\033[0;32m <i> \033[0msudo emerge dev-java/sun-jdk dev-java/sun-jre-bin"

  elif [ ! -z "$rvm_pacman_binary" ] ; then
    echo -e "\033[0;32m <i> \033[0msudo pacman -Sy jdk jre"

  elif [ ! -z "$rvm_yum_binary" ] ; then
    echo -e "\033[0;32m <i> \033[0myum install -y rpm-build gcc gcc-c++ redhat-rpm-config ; then download and rpmbuild and install the sdk, Have fun..."

  else
    echo -e "\033[0;32m <i> \033[0mThe SUN java runtime environment and development kit."
  fi
elif [ "$sytem" = "Darwin" ] ; then
  echo -e "\033[0;32m <i> \033[0mIf you intend on installing MacRuby you must install LLVM first."
fi

echo -e "$info There have been a great many updates since previous releases, please:"
echo -e "$info   * remove sourcing of ~/.rvm/current from your shell profiles."
echo -e "$info   * note that ruby gems are now all installed into ~/.rvm/gems"

echo -e "\n$info  Please visit the website for much more information: http://rvm.beginrescueend.com/\n"
echo '    w⦿‿⦿t! '
echo -e "\n        ~ Wayne"

source $rvm_dir/scripts/rvm
rvm symlinks
echo
rvm -v