如何使用 rbenv 配置 bash 环境？

Question

我实际上正在努力在不是最新的服务器上维护 Ruby 应用程序 (Ubuntu 10.04.2 LTS)。 RVM 是全局安装的，我试图在我的主目录中本地获取最新的 ruby 版本，但没有成功。现在我正在尝试使用 rbenv。

我刚刚用 rbenv 和 ruby-build（作为 rbenv 插件）安装了 Ruby 2.3.1。安装完美，但使用不完美。

安装（简单的部分）：

$ rbenv install 2.3.1
Downloading ruby-2.3.1.tar.bz2...
-> https://cache.ruby-lang.org/pub/ruby/2.3/ruby-2.3.1.tar.bz2
Installing ruby-2.3.1...
Installed ruby-2.3.1 to /home/atlantic/.rbenv/versions/2.3.1

我已经像他们说的那样更新了 .bash_profile :

$ cat .bash_profile 
# include .bashrc if it exists
if [ -f ~/.bashrc ]; then
    . ~/.bashrc
fi

export PATH="$HOME/.rbenv/bin:$PATH"
eval "$(rbenv init -)"

但是当我想检查环境时，很多环境参数使用全局路径（比如 GEM PATHS、EXECUTABLE DIRECTORY、INSTALLATION DIRECTORY，...）：

$ gem env 
RubyGems Environment:
  - RUBYGEMS VERSION: 2.5.1
  - RUBY VERSION: 2.3.1 (2016-04-26 patchlevel 112) [x86_64-linux]
  - INSTALLATION DIRECTORY: /usr/local/rvm/gems/ruby-2.0.0-p247
  - USER INSTALLATION DIRECTORY: /home/atlantic/.gem/ruby/2.3.0
  - RUBY EXECUTABLE: /home/atlantic/.rbenv/versions/2.3.1/bin/ruby
  - EXECUTABLE DIRECTORY: /usr/local/rvm/gems/ruby-2.0.0-p247/bin
  - SPEC CACHE DIRECTORY: /home/atlantic/.gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /home/atlantic/.rbenv/versions/2.3.1/etc
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-linux
  - GEM PATHS:
     - /usr/local/rvm/gems/ruby-2.0.0-p247
     - /usr/local/rvm/gems/ruby-2.0.0-p247@global
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - /home/atlantic/.rbenv/versions/2.3.1/bin
     - /home/atlantic/.rbenv/libexec
     - /home/atlantic/.rbenv/plugins/ruby-build/bin
     - /home/atlantic/.rbenv/shims
     - /home/atlantic/.rbenv/bin
     - /usr/local/rvm/gems/ruby-2.0.0-p247/bin
     - /usr/local/rvm/gems/ruby-2.0.0-p247@global/bin
     - /usr/local/rvm/rubies/ruby-2.0.0-p247/bin
     - /usr/local/rvm/bin
     - /usr/local/sbin
     - /usr/local/bin
     - /usr/sbin
     - /usr/bin
     - /sbin
     - /bin
     - /usr/games

当我查看 env 时，有很多针对全局 ruby 安装的环境变量。我不知道这些变量是从哪里设置的，但这不是我想要的值：

$ env |grep -i ruby
GEM_HOME=/usr/local/rvm/gems/ruby-2.0.0-p247
IRBRC=/usr/local/rvm/rubies/ruby-2.0.0-p247/.irbrc
MY_RUBY_HOME=/usr/local/rvm/rubies/ruby-2.0.0-p247
PATH=/home/atlantic/.rbenv/shims:/home/atlantic/.rbenv/bin:/usr/local/rvm/gems/ruby-2.0.0-p247/bin:/usr/local/rvm/gems/ruby-2.0.0-p247@global/bin:/usr/local/rvm/rubies/ruby-2.0.0-p247/bin:/usr/local/rvm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
GEM_PATH=/usr/local/rvm/gems/ruby-2.0.0-p247:/usr/local/rvm/gems/ruby-2.0.0-p247@global
RUBY_VERSION=ruby-2.0.0-p247

rbenv ruby 安装从未出现在这些变量上。我是否有命令（如 rbenv init-env-variables）启动以正确配置我的 ruby 环境？

感谢您的支持，大卫

Answer 1

运行 rvm implode --force

这将删除 rvm/ 目录和其中构建的所有红宝石。

运行 gem uninstall rvm

检查 .bashrc、.profile 和 .bash_profile 并删除对 RVM 的所有引用。应该看起来像这样

[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function

从以下位置删除 RVM

rm -rf /usr/local/rvm
sudo rm /etc/profile.d/rvm.sh
sudo rm /etc/rvmrc

从 /etc/profile 中删除这些行（如果它们存在）

source /etc/profile.d/sm.sh
source /etc/profile.d/rvm.sh

使用 source 重新加载您的终端并重新启动 rbenv 安装过程。

Answer 2

我已手动更新文件 .bash_profile 以取消设置与 rvm 一起使用的所有变量环境，现在它可以完美运行：

$ cat /home/atlantic/.bash_profile 
# include .bashrc if it exists
if [ -f ~/.bashrc ]; then
    . ~/.bashrc
fi

unset rvm_bin_path
unset GEM_HOME
unset IRBRC
unset MY_RUBY_HOME
unset rvm_path
unset rvm_prefix
unset rvm_version
unset GEM_PATH
unset RUBY_VERSION


export PATH="$HOME/.rbenv/bin:$PATH"
eval "$(rbenv init -)"

结果：

$ gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 2.5.1
  - RUBY VERSION: 2.3.1 (2016-04-26 patchlevel 112) [x86_64-linux]
  - INSTALLATION DIRECTORY: /home/atlantic/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0
  - USER INSTALLATION DIRECTORY: /home/atlantic/.gem/ruby/2.3.0
  - RUBY EXECUTABLE: /home/atlantic/.rbenv/versions/2.3.1/bin/ruby
  - EXECUTABLE DIRECTORY: /home/atlantic/.rbenv/versions/2.3.1/bin
  - SPEC CACHE DIRECTORY: /home/atlantic/.gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /home/atlantic/.rbenv/versions/2.3.1/etc
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-linux
  - GEM PATHS:
     - /home/atlantic/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0
     - /home/atlantic/.gem/ruby/2.3.0
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - /home/atlantic/.rbenv/versions/2.3.1/bin
     - /home/atlantic/.rbenv/libexec
     - /home/atlantic/.rbenv/plugins/ruby-build/bin
     - /home/atlantic/.rbenv/shims
     - /home/atlantic/.rbenv/bin
     - /usr/local/rvm/gems/ruby-2.0.0-p247/bin
     - /usr/local/rvm/gems/ruby-2.0.0-p247@global/bin
     - /usr/local/rvm/rubies/ruby-2.0.0-p247/bin
     - /usr/local/rvm/bin
     - /usr/local/sbin
     - /usr/local/bin
     - /usr/sbin
     - /usr/bin
     - /sbin
     - /bin
     - /usr/games

感谢您的建议和帮助。大卫.

如何使用 rbenv 配置 bash 环境？

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