简介
Use rbenv to pick a Ruby version for your application and guarantee that your development environment matches production.
安装rbenv
$ brew install rbenv
$ rbenv init
---------------------------------------
# Load rbenv automatically by appending
# the following to ~/.zshrc:
eval "$(rbenv init -)"
$ vi .zshrc
add eval "$(rbenv init -)" to .zshrc
$ source .zshrc
curl -fsSL https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-doctor | bash
---------------------------------------------------
Checking for `rbenv' in PATH: /usr/local/bin/rbenv
Checking for rbenv shims in PATH: OK
Checking `rbenv install' support: /usr/local/bin/rbenv-install (ruby-build 20190423)
Counting installed Ruby versions: none
There aren't any Ruby versions installed under `/Users/luoxiaolei/.rbenv/versions'.
You can install Ruby versions like so: rbenv install 2.2.4
Checking RubyGems settings: OK
Auditing installed plugins: OK
安装ruby
# list all available versions:
$ rbenv install -l
# install a Ruby version:
$ rbenv install 2.6.3
---------------------------------------------------
ruby-build: use openssl from homebrew
Downloading ruby-2.6.3.tar.bz2...
-> https://cache.ruby-lang.org/pub/ruby/2.6/ruby-2.6.3.tar.bz2
Installing ruby-2.6.3...
Installed ruby-2.6.3 to /Users/luoxiaolei/.rbenv/versions/2.6.3
$ rbenv version
system (set by /Users/luoxiaolei/.rbenv/version)
$ rbenv local 2.6.3
$ rbenv version
2.6.3 (set by /Users/luoxiaolei/.ruby-version)
安装Ruby gems
# 切换版本后需要刷新一下，否则安装报错
-----------------------------------------------
gem install bundler
Fetching: bundler-2.0.1.gem (100%)
ERROR: While executing gem ... (Gem::FilePermissionError)
You don't have write permissions for the /Library/Ruby/Gems/2.3.0 directory.
-----------------------------------------------
$ rbenv rehash
$ gem install bundler
--------------------------------------------------
Fetching bundler-2.0.1.gem
Successfully installed bundler-2.0.1
Parsing documentation for bundler-2.0.1
Installing ri documentation for bundler-2.0.1
Done installing documentation for bundler after 2 seconds
1 gem installed
# 查看gem安装位置
gem env home
/Users/luoxiaolei/.rbenv/versions/2.6.3/lib/ruby/gems/2.6.0