#!/usr/bin/env bash

source "$rvm_path/scripts/base"
source "$rvm_path/scripts/version"

get_help()
{
  printf "

Usage:

  rvm get {latest,head,help}

Options:

  latest - download and install the latest RVM release listed by
           http://rvm.beginrescueend.com/releases/stable-version.txt

  head   - git clone and install the latest RVM repository HEAD.

  help   - Output this message.

"
}

get_latest()
{
  local version_url stable_version

  version_url="http://rvm.beginrescueend.com/releases/stable-version.txt"

  stable_version=$(curl -s $version_url)

  "$rvm_path/scripts/log" "info" "\nOriginal installed RVM version:"
  (__rvm_version)


  (

  __rvm_run "fetch" \
    "$rvm_path/scripts/fetch 'http://rvm.beginrescueend.com/releases/rvm-${stable_version}.tar.gz'" \
    "fetching rvm-${stable_version}.tar.gz"

  __rvm_run "extract" \
    "gunzip < \"${rvm_archives_path:-"$rvm_path/archives"}/rvm-${stable_version}.tar.gz\" | tar xf - -C ${rvm_src_path:-"$rvm_path/src"}" \
    "Extracting rvm-${stable_version}.tar.gz ..."

  __rvm_run "install" \
    "builtin cd ${rvm_src_path:-"$rvm_path/src"}/rvm-${stable_version}/; ./install" \
    "Installing rvm-${stable_version}..."

  )

  "$rvm_path/scripts/log" "info" "\nInstalled RVM version:"
  ( source $rvm_path/scripts/rvm ; rvm --version )

  rvm_hook="after_update"

  source "$rvm_path/scripts/hook"
}

get_head()
{

  "$rvm_path/scripts/log" "info" "\nOriginal installed RVM version:"

  __rvm_version

  (
    if [[ ! -d "${rvm_src_path:-"$rvm_path/src"}" ]] ; then
      \mkdir -p "${rvm_src_path:-"$rvm_path/src"}"
    fi

    builtin cd "${rvm_src_path:-"$rvm_path/src"}"

    if [[ -d "${rvm_src_path:-"$rvm_path/src"}/rvm/.git" ]] ; then

      builtin cd "${rvm_src_path:-"$rvm_path/src"}/rvm/" && \
        git pull origin master && \
        ./scripts/install

    else

      builtin cd "${rvm_src_path:-"$rvm_path/src"}" && \
        ( git clone http://github.com/wayneeseguin/rvm.git || \
        git clone --depth 1 git://github.com/wayneeseguin/rvm.git ) && \
        builtin cd rvm/ && ./scripts/install
    fi
  )

  "$rvm_path/scripts/log" "info" "\nInstalled RVM HEAD version:"
  ( source $rvm_path/scripts/rvm ; rvm --version )

  rvm_hook="after_update"

  source "$rvm_path/scripts/hook"

  return 0
}

args=($*)
action="${args[$__array_start]}"
args[$__array_start]=""
args=(${args[@]})

case "$action" in

  latest)
    get_latest
    ;;

  head)
    get_head
    ;;

  help)
    get_help
    true
    ;;

  *)
    false
    ;;
esac

exit $?