====== rbenv ======

===== 準備 =====

  # pkg install git sudo bash gmake

===== sudoerの設定 =====

sudoeditで設定する((当然sudoを使えるようにもする))

  # Add for rbenv
  Defaults secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/rbenv/bin:/usr/local/rbenv/shims"
  Defaults env_keep += "RBENV_ROOT"

===== Install =====

  # cd /usr/local
  # <del>git clone git://github.com/sstephenson/rbenv.git</del>
  # git clone https://github.com/rbenv/rbenv.git
  # mkdir /usr/local/rbenv/plugins
  # cd /usr/local/rbenv/plugins
  # <del>git clone git://github.com/sstephenson/ruby-build.git</del>
  # git clone https://github.com/rbenv/ruby-build.git

===== 個人設定 =====
==== sh,bash系 ====

<file bash ~/.profile>
# for rbenv
export RBENV_ROOT="/usr/local/rbenv"
export PATH="${RBENV_ROOT}/shims:${RBENV_ROOT}/bin:${PATH}"
eval "$(rbenv init -)"
</file>
==== csh,tcsh系 ====

<file bash ~/.cshrc>
# for rbenv
setenv RBENV_ROOT /usr/local/rbenv
setenv PATH  ${RBENV_ROOT}/shims:${RBENV_ROOT}/bin:${PATH}
rbenv init -
</file>

===== Rubyのinstall =====
==== インストール可能なRubyを確認 ====

  $ rbenv install –list
  2.5.8
  2.6.6
  2.7.2
  jruby-9.2.13.0
  ......
  Only latest stable releases for each Ruby implementation are shown.
  Use 'rbenv install --list-all' to show all local versions.


  $ rbenv install --list-all
  1.8.5-p52
  1.8.5-p113
  1.8.5-p114
  ......
  2.6.6
  2.7.0-dev
  2.7.0-preview1
  2.7.0-preview2
  2.7.0-preview3
  2.7.0-rc1
  ......

==== インストール ====

  $ sudo rbenv install 2.5.1
  $ sudo rbenv rehash

インストールしたrubyの確認
  $ rbenv versions

system側に設定
  $ sudo rbenv global 2.5.1

system側のバージョン確認
  $ rbenv global

バージョン確認
  $ sudo rbenv -v

==== Update ====
rbenvとruby-buildの更新

  # cd /usr/local/rbenv
  # git pull
  # cd /usr/local/rbenv/plugins/ruby-build
  # git pull

RubyのupdateはInstallと同様。

===== 参考 =====
https://github.com/rbenv/rbenv