Ruby环境配置

vi rvm-installer.sh

#!/usr/bin/env bash

shopt -s extglob
set -o errtrace
set -o errexit

rvm_install_initialize()
{
  DEFAULT_SOURCES=(github.com/rvm/rvm bitbucket.org/mpapis/rvm)

  BASH_MIN_VERSION="3.2.25"
  if
    [[ -n "${BASH_VERSION:-}" &&
      "$(\printf "%b" "${BASH_VERSION:-}\n${BASH_MIN_VERSION}\n" | LC_ALL=C \sort -t"." -k1,1n -k2,2n -k3,3n | \head -n1)" != "${BASH_MIN_VERSION}"
    ]]
  then
    echo "BASH ${BASH_MIN_VERSION} required (you have $BASH_VERSION)"
    exit 1
  fi

  export HOME PS4
  export rvm_trace_flag rvm_debug_flag rvm_user_install_flag rvm_ignore_rvmrc rvm_prefix rvm_path

  PS4="+ \${BASH_SOURCE##\${rvm_path:-}} : \${FUNCNAME[0]:+\${FUNCNAME[0]}()}  \${LINENO} > "
}

log()  { printf "%b\n" "$*"; }
debug(){ [[ ${rvm_debug_flag:-0} -eq 0 ]] || printf "%b\n" "Running($#): $*"; }
fail() { log "\nERROR: $*\n" ; exit 1 ; }

rvm_install_commands_setup()
{
  \which which >/dev/null 2>&1 || fail "Could not find ‘which‘ command, make sure it‘s available first before continuing installation."
  if
    [[ -z "${rvm_tar_command:-}" ]] && builtin command -v gtar >/dev/null
  then
    rvm_tar_command=gtar
  elif
    ${rvm_tar_command:-tar} --help 2>&1 | GREP_OPTIONS="" \grep -- --strip-components >/dev/null
  then
    rvm_tar_command="${rvm_tar_command:-tar}"
  else
    case "$(uname)" in
      (OpenBSD)
        log "Trying to install GNU version of tar, might require sudo password"
        if (( UID ))
        then sudo pkg_add -z gtar-1
        else pkg_add -z gtar-1
        fi
        rvm_tar_command=gtar
        ;;
      (Darwin|FreeBSD|DragonFly) # it‘s not possible to autodetect on OSX, the help/man does not mention all flags
        rvm_tar_command=tar
        ;;
      (SunOS)
        case "$(uname -r)" in
          (5.10)
            log "Trying to install GNU version of tar, might require sudo password"
            if (( UID ))
            then
              if \which sudo >/dev/null 2>&1
              then sudo_10=sudo
              elif \which /opt/csw/bin/sudo >/dev/null 2>&1
              then sudo_10=/opt/csw/bin/sudo
              else fail "sudo is required but not found. You may install sudo from OpenCSW repository (http://opencsw.org/about)"
              fi
              pkginfo -q CSWpkgutil || $sudo_10 pkgadd -a $rvm_path/config/solaris/noask -d http://get.opencsw.org/now CSWpkgutil
              sudo /opt/csw/bin/pkgutil -iy CSWgtar -t http://mirror.opencsw.org/opencsw/unstable
            else
              pkginfo -q CSWpkgutil || pkgadd -a $rvm_path/config/solaris/noask -d http://get.opencsw.org/now CSWpkgutil
              /opt/csw/bin/pkgutil -iy CSWgtar -t http://mirror.opencsw.org/opencsw/unstable
            fi
            rvm_tar_command=/opt/csw/bin/gtar
            ;;
          (*)
            rvm_tar_command=tar
            ;;
        esac
    esac
    builtin command -v ${rvm_tar_command:-gtar} >/dev/null ||
    fail "Could not find GNU compatible version of ‘tar‘ command, make sure it‘s available first before continuing installation."
  fi
  if
    [[ " ${rvm_tar_options:-} " != *" --no-same-owner "*  ]] &&
    $rvm_tar_command --help 2>&1 | GREP_OPTIONS="" \grep -- --no-same-owner >/dev/null
  then
    rvm_tar_options="${rvm_tar_options:-}${rvm_tar_options:+ }--no-same-owner"
  fi
}

usage()
{
  printf "%b" "

Usage

  rvm-installer [options] [action]

Options

  [[--]version] <version>

    The version or tag to install. Valid values are:

      latest         - The latest tagged version.
      latest-minor   - The latest minor version of the current major version.
      latest-<x>     - The latest minor version of version x.
      latest-<x>.<y> - The latest patch version of version x.y.
      <x>.<y>.<z>    - Major version x, minor version y and patch z.

  [--]branch <branch>

    The name of the branch from which RVM is installed. This option can be used
    with the following formats for <branch>:

      <account>/

        If account is wayneeseguin or mpapis, installs from one of the following:

          https://github.com/rvm/rvm/archive/master.tar.gz
          https://bitbucket.org/mpapis/rvm/get/master.tar.gz

       Otherwise, installs from:

         https://github.com/<account>/rvm/archive/master.tar.gz

      <account>/<branch>

        If account is wayneeseguin or mpapis, installs from one of the following:

          https://github.com/rvm/rvm/archive/<branch>.tar.gz
          https://bitbucket.org/mpapis/rvm/get/<branch>.tar.gz

        Otherwise, installs from:

          https://github.com/<account>/rvm/archive/<branch>.tar.gz

      [/]<branch>

        Installs the branch from one of the following:

          https://github.com/rvm/rvm/archive/<branch>.tar.gz
          https://bitbucket.org/mpapis/rvm/get/<branch>.tar.gz

      [--]source <source>

        Defines the repository from which RVM is retrieved and installed in the format:

          <domain>/<account>/<repo>

        Where:

          <domain>  - Is bitbucket.org, github.com or a github enterprise site serving
                      an RVM repository.
          <account> - Is the user account in which the RVM repository resides.
          <repo>    - Is the name of the RVM repository.

        Note that when using the [--]source option, one should only use the [/]branch format
        with the [--]branch option. Failure to do so will result in undefined behavior.

      --trace

        Provides debug logging for the installation script.
Actions

  master - Installs RVM from the master branch at rvm/rvm on github or mpapis/rvm
           on bitbucket.org.
  stable - Installs RVM from the stable branch a rvm/rvm on github or mpapis/rvm
           on bitbucket.org.
  help   - Displays this output.

"
}

## duplication marker 32fosjfjsznkjneuera48jae
__rvm_curl_output_control()
{
  if
    (( ${rvm_quiet_curl_flag:-0} == 1 ))
  then
    __flags+=( "--silent" "--show-error" )
  elif
    [[ " $*" == *" -s"* || " $*" == *" --silent"* ]]
  then
    # make sure --show-error is used with --silent
    [[ " $*" == *" -S"* || " $*" == *" -sS"* || " $*" == *" --show-error"* ]] ||
    {
      __flags+=( "--show-error" )
    }
  fi
}

## duplication marker 32fosjfjsznkjneuera48jae
# -S is automatically added to -s
__rvm_curl()
(
  __rvm_which curl >/dev/null ||
  {
    rvm_error "RVM requires ‘curl‘. Install ‘curl‘ first and try again."
    return 200
  }

  typeset -a __flags
  __flags=( --fail --location --max-redirs 10 )

  [[ "$*" == *"--max-time"* ]] ||
  [[ "$*" == *"--connect-timeout"* ]] ||
    __flags+=( --connect-timeout 30 --retry-delay 2 --retry 3 )

  if [[ -n "${rvm_proxy:-}" ]]
  then __flags+=( --proxy "${rvm_proxy:-}" )
  fi

  __rvm_curl_output_control

  unset curl
  __rvm_debug_command \curl "${__flags[@]}" "$@" || return $?
)

rvm_error()  { printf "ERROR: %b\n" "$*"; }
__rvm_which(){   which "$@" || return $?; true; }
__rvm_debug_command()
{
  debug "Running($#): $*"
  "$@" || return $?
  true
}
rvm_is_a_shell_function()
{
  [[ -t 0 && -t 1 ]] || return $?
  return ${rvm_is_not_a_shell_function:-0}
}

# Searches the tags for the highest available version matching a given pattern.
# fetch_version (github.com/rvm/rvm bitbucket.org/mpapis/rvm) 1.10. -> 1.10.3
# fetch_version (github.com/rvm/rvm bitbucket.org/mpapis/rvm) 1.10. -> 1.10.3
# fetch_version (github.com/rvm/rvm bitbucket.org/mpapis/rvm) 1.    -> 1.11.0
# fetch_version (github.com/rvm/rvm bitbucket.org/mpapis/rvm) ""    -> 2.0.1
fetch_version()
{
  typeset _account _domain _pattern _repo _sources _values _version
  _sources=(${!1})
  _pattern=$2
  for _source in "${_sources[@]}"
  do
    IFS=‘/‘ read -r _domain _account _repo <<< "${_source}"
    _version="$(
      fetch_versions ${_domain} ${_account} ${_repo} |
      GREP_OPTIONS="" \grep "^${_pattern:-}" | tail -n 1
    )"
    if
      [[ -n ${_version} ]]
    then
      echo "${_version}"
      return 0
    fi
  done
}

# Returns a sorted list of all version tags from a repository
fetch_versions()
{
  typeset _account _domain _repo _url
  _domain=$1
  _account=$2
  _repo=$3
  case ${_domain} in
    (bitbucket.org)
      _url=https://${_domain}/api/1.0/repositories/${_account}/${_repo}/branches-tags
      ;;
    (github.com)
      _url=https://api.${_domain}/repos/${_account}/${_repo}/tags
      ;;

    (*)
      _url=https://${_domain}/api/v3/repos/${_account}/${_repo}/tags
      ;;
  esac
  __rvm_curl -s ${_url} |
    \awk -v RS=‘,‘ -v FS=‘"‘ ‘$2=="name"{print $4}‘ |
    sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n
}

install_release()
{
  typeset _source _sources _url _version _verify_pgp
  _sources=(${!1})
  _version=$2
  debug "Downloading RVM version ${_version}"
  for _source in "${_sources[@]}"
  do
    case ${_source} in
      (bitbucket.org*)
        _url="https://${_source}/get/${_version}.tar.gz"
        _verify_pgp="https://${_source}/downloads/${_version}.tar.gz.asc"
        ;;
      (*)
        _url="https://${_source}/archive/${_version}.tar.gz"
        _verify_pgp="https://${_source}/releases/download/${_version}/${_version}.tar.gz.asc"
        ;;
    esac
    get_and_unpack "${_url}" "rvm-${_version}.tgz" "$_verify_pgp" && return
  done
  return $?
}

install_head()
{
  typeset _branch _source _sources _url
  _sources=(${!1})
  _branch=$2
  debug "Selected RVM branch ${_branch}"
  for _source in "${_sources[@]}"
  do
    case ${_source} in
      (bitbucket.org*)
        _url=https://${_source}/get/${_branch}.tar.gz
        ;;
      (*)
        _url=https://${_source}/archive/${_branch}.tar.gz
        ;;
    esac
    get_and_unpack "${_url}" "rvm-${_branch//\//_}.tgz" && return
  done
  return $?
}

# duplication marker dfkjdjngdfjngjcszncv
# Drop in cd which _doesn‘t_ respect cdpath
__rvm_cd()
{
  typeset old_cdpath ret
  ret=0
  old_cdpath="${CDPATH}"
  CDPATH="."
  chpwd_functions="" builtin cd "$@" || ret=$?
  CDPATH="${old_cdpath}"
  return $ret
}

get_package()
{
  typeset _url _file
  _url="$1"
  _file="$2"
  log "Downloading ${_url}"
  __rvm_curl -sS ${_url} -o ${rvm_archives_path}/${_file} ||
  {
    _return=$?
    case $_return in
      # duplication marker lfdgzkngdkjvnfjknkjvcnbjkncvjxbn
      (60)
        log "
Could not download ‘${_url}‘, you can read more about it here:
https://rvm.io/support/fixing-broken-ssl-certificates/
To continue in insecure mode run ‘echo insecure >> ~/.curlrc‘.
"
        ;;
      # duplication marker lfdgzkngdkjvnfjknkjvcnbjkncvjxbn
      (77)
        log "
It looks like you have old certificates, you can read more about it here:
https://rvm.io/support/fixing-broken-ssl-certificates/
"
        ;;
      # duplication marker lfdgzkngdkjvnfjknkjvcnbjkncvjxbn
      (141)
        log "
Curl returned 141 - it is result of a segfault which means it‘s Curls fault.
Try again and if it crashes more than a couple of times you either need to
reinstall Curl or consult with your distribution manual and contact support.
"
        ;;
      (*)
        log "
Could not download ‘${_url}‘.
  curl returned status ‘$_return‘.
"
        ;;
    esac
    return $_return
  }
}

# duplication marker flnglfdjkngjndkfjhsbdjgfghdsgfklgg
rvm_install_gpg_setup()
{
  export rvm_gpg_command
  {
    rvm_gpg_command="$( \which gpg2 2>/dev/null )" &&
    [[ ${rvm_gpg_command} != "/cygdrive/"* ]]
  } ||
    rvm_gpg_command="$( \which gpg 2>/dev/null )" ||
    rvm_gpg_command=""
  debug "Detected GPG program: ‘$rvm_gpg_command‘"
  [[ -n "$rvm_gpg_command" ]] || return $?
}

# duplication marker rdjgndfnghdfnhgfdhbghdbfhgbfdhbn
verify_package_pgp()
{
  if
    "${rvm_gpg_command}" --verify "$2" "$1"
  then
    log "GPG verified ‘$1‘"
  else
    typeset _ret=$?
    log "\
Warning, RVM 1.26.0 introduces signed releases and automated check of signatures when GPG software found.
Assuming you trust Michal Papis import the mpapis public key (downloading the signatures).

GPG signature verification failed for ‘$1‘ - ‘$3‘!
try downloading the signatures:

    ${SUDO_USER:+sudo }${rvm_gpg_command##*/} --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3

or if it fails:

    command curl -sSL https://rvm.io/mpapis.asc | ${SUDO_USER:+sudo }${rvm_gpg_command##*/} --import -

the key can be compared with:

    https://rvm.io/mpapis.asc
    https://keybase.io/mpapis
"
    exit $_ret
  fi
}

verify_pgp()
{
  [[ -n "${1:-}" ]] ||
  {
    debug "No PGP url given, skipping."
    return 0
  }

  get_package "$1" "$2.asc" ||
  {
    debug "PGP url given but does not exist: ‘$1‘"
    return 0
  }

  rvm_install_gpg_setup ||
  {
    log "Found PGP signature at: ‘$1‘,
but no GPG software exists to validate it, skipping."
    return 0
  }

  verify_package_pgp "${rvm_archives_path}/$2" "${rvm_archives_path}/$2.asc" "$1"
}

get_and_unpack()
{
  typeset _url _file _patern _return _verify_pgp
  _url="$1"
  _file="$2"
  _verify_pgp="$3"

  get_package "$_url" "$_file" || return $?
  verify_pgp "$_verify_pgp" "$_file" || return $?

  [[ -d "${rvm_src_path}/rvm" ]] || \mkdir -p "${rvm_src_path}/rvm"
  __rvm_cd "${rvm_src_path}/rvm" ||
  {
    _return=$?
    log "Could not change directory ‘${rvm_src_path}/rvm‘."
    return $_return
  }

  rm -rf ${rvm_src_path}/rvm/*
  __rvm_debug_command $rvm_tar_command xzf ${rvm_archives_path}/${_file} ${rvm_tar_options:-} --strip-components 1 ||
  {
    _return=$?
    log "Could not extract RVM sources."
    return $_return
  }
}

rvm_install_default_settings()
{
  # Tracing, if asked for.
  if
    [[ "$*" == *--trace* ]] || (( ${rvm_trace_flag:-0} > 0 ))
  then
    set -o xtrace
    rvm_trace_flag=1
  fi

  # Variable initialization, remove trailing slashes if they exist on HOME
  true     ${rvm_trace_flag:=0} ${rvm_debug_flag:=0}    ${rvm_ignore_rvmrc:=0} HOME="${HOME%%+(\/)}"

  if
    (( rvm_ignore_rvmrc == 0 ))
  then
    for rvmrc in /etc/rvmrc "$HOME/.rvmrc"
    do
      if
        [[ -s "$rvmrc" ]]
      then
        if
          GREP_OPTIONS="" \grep ‘^\s*rvm .*$‘ "$rvmrc" >/dev/null 2>&1
        then
          printf "%b" "
  Error: $rvmrc is for rvm settings only.
  rvm CLI may NOT be called from within $rvmrc.
  Skipping the loading of $rvmrc
  "
          exit 1
        else
          source "$rvmrc"
        fi
      fi
    done
  fi

  if
    [[ -z "${rvm_path:-}" ]]
  then
    if
      (( UID == 0 ))
    then
      rvm_user_install_flag=0
      rvm_prefix="/usr/local"
      rvm_path="${rvm_prefix}/rvm"
    else
      rvm_user_install_flag=1
      rvm_prefix="$HOME"
      rvm_path="${rvm_prefix}/.rvm"
    fi
  fi
  if [[ -z "${rvm_prefix}" ]]
  then rvm_prefix=$( dirname $rvm_path )
  fi

  # duplication marker kkdfkgnjfndgjkndfjkgnkfjdgn
  [[ -n "${rvm_user_install_flag:-}" ]] ||
  case "$rvm_path" in
    (/usr/local/rvm)         rvm_user_install_flag=0 ;;
    ($HOME/*|/${USER// /_}*) rvm_user_install_flag=1 ;;
    (*)                      rvm_user_install_flag=0 ;;
  esac
}

rvm_install_parse_params()
{
  install_rubies=()
  install_gems=()
  flags=( ./scripts/install )
  forwarded_flags=()
  while
    (( $# > 0 ))
  do
    token="$1"
    shift
    case "$token" in

      (--trace)
        set -o xtrace
        rvm_trace_flag=1
        flags=( -x "${flags[@]}" "$token" )
        forwarded_flags+=( "$token" )
        ;;

      (--debug|--quiet-curl)
        flags+=( "$token" )
        forwarded_flags+=( "$token" )
        token=${token#--}
        token=${token//-/_}
        export "rvm_${token}_flag"=1
        printf "%b" "Turning on ${token/_/ } mode.\n"
        ;;

      (--path)
        if [[ -n "${1:-}" ]]
        then
          rvm_path="$1"
          shift
        else
          fail "--path must be followed by a path."
        fi
        ;;

      (--branch|branch) # Install RVM from a given branch
        if [[ -n "${1:-}" ]]
        then
          case "$1" in
            (/*)
              branch=${1#/}
              ;;
            (*/)
              branch=master
              if [[ "${1%/}" -ne wayneeseguin ]] && [[ "${1%/}" -ne mpapis ]]
              then sources=(github.com/${1%/}/rvm)
              fi
              ;;
            (*/*)
              branch=${1#*/}
              if [[ "${1%%/*}" -ne wayneeseguin ]] && [[ "${1%%/*}" -ne mpapis ]]
              then sources=(github.com/${1%%/*}/rvm)
              fi
              ;;
            (*)
              branch="$1"
              ;;
          esac
          shift
        else
          fail "--branch must be followed by a branchname."
        fi
        ;;

      (--source|source)
        if [[ -n "${1:-}" ]]
        then
          if [[ "$1" = */*/* ]]
          then
            sources=($1)
            shift
          else
            fail "--source must be in the format <domain>/<account>/<repo>."
          fi
        else
          fail "--source must be followed by a source."
        fi
        ;;

      (--user-install|--ignore-dotfiles)
        token=${token#--}
        token=${token//-/_}
        export "rvm_${token}_flag"=1
        printf "%b" "Turning on ${token/_/ } mode.\n"
        ;;

      (--auto-dotfiles)
        flags+=( "$token" )
        export "rvm_auto_dotfiles_flag"=1
        printf "%b" "Turning on auto dotfiles mode.\n"
        ;;

      (--auto)
        export "rvm_auto_dotfiles_flag"=1
        printf "%b" "Warning, --auto is deprecated in favor of --auto-dotfiles.\n"
        ;;

      (--verify-downloads)
        if [[ -n "${1:-}" ]]
        then
          export rvm_verify_downloads_flag="$1"
          forwarded_flags+=( "$token" "$1" )
          shift
        else
          fail "--verify-downloads must be followed by level(0|1|2)."
        fi
        ;;

      (--autolibs=*)
        flags+=( "$token" )
        export rvm_autolibs_flag="${token#--autolibs=}"
        forwarded_flags+=( "$token" )
        ;;

      (--without-gems=*|--with-gems=*|--with-default-gems=*)
        flags+=( "$token" )
        value="${token#*=}"
        token="${token%%=*}"
        token="${token#--}"
        token="${token//-/_}"
        export "rvm_${token}"="${value}"
        printf "%b" "Installing RVM ${token/_/ }: ${value}.\n"
        ;;

      (--version|version)
        version="$1"
        shift
        ;;

      (head|master)
        version="head"
        branch="master"
        ;;

      (stable)
        version="latest"
        ;;

      (latest|latest-*|+([[:digit:]]).+([[:digit:]]).+([[:digit:]]))
        version="$token"
        ;;

      (--ruby)
        install_rubies+=( ruby )
        ;;

      (--ruby=*)
        token=${token#--ruby=}
        install_rubies+=( ${token//,/ } )
        ;;

      (--rails)
        install_gems+=( rails )
        ;;

      (--gems=*)
        token=${token#--gems=}
        install_gems+=( ${token//,/ } )
        ;;

      (--add-to-rvm-group)
        export rvm_add_users_to_rvm_group="$1"
        shift
        ;;

      (help|usage)
        usage
        exit 0
        ;;

      (*)
        usage
        exit 1
        ;;

    esac
  done

  if (( ${#install_gems[@]} > 0 && ${#install_rubies[@]} == 0 ))
  then install_rubies=( ruby )
  fi

  true "${version:=head}"
  true "${branch:=master}"

  if [[ -z "${sources[@]}" ]]
  then sources=("${DEFAULT_SOURCES[@]}")
  fi

  rvm_src_path="$rvm_path/src"
  rvm_archives_path="$rvm_path/archives"
  rvm_releases_url="https://rvm.io/releases"
}

rvm_install_validate_rvm_path()
{
  case "$rvm_path" in
    (*[[:space:]]*)
      printf "%b" "
It looks you are one of the happy *space* users(in home dir name),
RVM is not yet fully ready for it, use this trick to fix it:

    sudo mkdir -p /${USER// /_}.rvm
    sudo chown -R \"$USER:\" /${USER// /_}.rvm
    echo \"export rvm_path=/${USER// /_}.rvm\" >> \"$HOME/.rvmrc\"

and start installing again.

"
      exit 2
    ;;
    (/usr/share/ruby-rvm)
      printf "%b" "
It looks you are one of the happy Ubuntu users,
RVM packaged by Ubuntu is old and broken,
follow this link for details how to fix:

  http://stackoverflow.com/a/9056395/497756

"
      [[ "${rvm_uses_broken_ubuntu_path:-no}" == "yes" ]] || exit 3
    ;;
  esac

  if [[ "$rvm_path" != "/"* ]]
  then fail "The rvm install path must be fully qualified. Tried $rvm_path"
  fi
}

rvm_install_select_and_get_version()
{
  typeset _version_release

  for dir in "$rvm_src_path" "$rvm_archives_path"
  do
    [[ -d "$dir" ]] || mkdir -p "$dir"
  done

  _version_release="${version}"
  case "${version}" in
    (head)
      _version_release="${branch}"
      install_head sources[@] ${branch:-master} || exit $?
      ;;

    (latest)
      install_release sources[@] $(fetch_version sources[@]) || exit $?
      ;;

    (latest-minor)
      version="$(\cat "$rvm_path/VERSION")"
      install_release sources[@] $(fetch_version sources[@] ${version%.*}) || exit $?
      ;;

    (latest-*)
      install_release sources[@] $(fetch_version sources[@] ${version#latest-}) || exit $?
      ;;

    (+([[:digit:]]).+([[:digit:]]).+([[:digit:]])) # x.y.z
      install_release sources[@] ${version} || exit $?
      ;;

    (*)
      fail "Something went wrong, unrecognized version ‘$version‘"
      ;;
  esac
  echo "${_version_release}" > "$rvm_path/RELEASE"
}

rvm_install_main()
{
  [[ -f ./scripts/install ]] ||
  {
    log "‘./scripts/install‘ can not be found for installation, something went wrong, it usally means your ‘tar‘ is broken, please report it here: https://github.com/rvm/rvm/issues"
    return 127
  }

  # required flag - path to install
  flags+=( --path "$rvm_path" )
  \command bash "${flags[@]}"
}

rvm_install_ruby_and_gems()
(
  if
    (( ${#install_rubies[@]} > 0 ))
  then
    source ${rvm_scripts_path:-${rvm_path}/scripts}/rvm
    source ${rvm_scripts_path:-${rvm_path}/scripts}/version
    __rvm_version

    for _ruby in ${install_rubies[@]}
    do command rvm "${forwarded_flags[@]}" install ${_ruby} -j 2
    done
    # set the first one as default, skip rest
    for _ruby in ${install_rubies[@]}
    do
      rvm "${forwarded_flags[@]}" alias create default ${_ruby}
      break
    done

    for _gem in ${install_gems[@]}
    do rvm "${forwarded_flags[@]}" all do gem install ${_gem}
    done

    printf "%b" "
  * To start using RVM you need to run \`source $rvm_path/scripts/rvm\`
    in all your open shell windows, in rare cases you need to reopen all shell windows.
"

    if
      [[ "${install_gems[*]}" == *"rails"* ]]
    then
      printf "%b" "
  * To start using rails you need to run \`rails new <project_dir>\`.
"
    fi
  fi
)

rvm_install()
{
  rvm_install_initialize
  rvm_install_commands_setup
  rvm_install_default_settings
  rvm_install_parse_params "$@"
  rvm_install_validate_rvm_path
  rvm_install_select_and_get_version
  rvm_install_main
  rvm_install_ruby_and_gems
}

rvm_install "$@"

chmod +x rvm-installer.sh
./rvm-installer.sh

source /etc/profile.d/rvm.sh

https://rubygems.org/pages/download

tar –zxvf rubygems-2.4.6.tgz

cd rubygems-2.4.6

ruby setup.rb

http://download.csdn.net/detail/neptune_ljg1/1642583
http://rake.rubyforge.org/

tar -zxvf rake-0.8.7.tgz
cd ake-0.8.7
ruby install.rb