chruby


Ⅰ. 插件描述

Changes the current Ruby

Ⅱ. 基本信息

创建日期:  2012-08-01
使用用户:  1
Github星:  2327
插件作者:  Postmodern

Ⅲ. 安装方法

使用Vundle管理器安装

在你的.vimrc下添加:
Plugin 'postmodern/chruby'
… 然后在Vim中运行以下命令:
:source %
:PluginInstall

对于Vundle版本 < 0.10.2,请用上面的Bundle替换Plugin。

使用NeoBundle管理器安装

在你的.vimrc下添加:
NeoBundle 'postmodern/chruby'
… 然后在Vim中运行以下命令:
:source %
:NeoBundleInstall

使用VimPlug管理器安装

在你的.vimrc下添加:
Plug 'postmodern/chruby'
… 然后在Vim中运行以下命令:
:source %
:PlugInstall

使用Pathogen管理器安装

在终端中运行以下命令:
cd ~/.vim/bundle
git clone https://github.com/postmodern/chruby

Ⅳ. 文档说明

# chruby

Build Status

Changes the current Ruby.

Features

  • Updates $PATH.

    • Also adds RubyGems bin/ directories to $PATH.
  • Correctly sets $GEM_HOME and $GEM_PATH.

    • Users: gems are installed into ~/.gem/$ruby/$version.
    • Root: gems are installed directly into /path/to/$ruby/$gemdir.
  • Additionally sets $RUBY_ROOT, $RUBY_ENGINE, $RUBY_VERSION and
    $GEM_ROOT.
  • Optionally sets $RUBYOPT if second argument is given.
  • Calls hash -r to clear the command-lookup hash-table.
  • Fuzzy matching of Rubies by name.
  • Defaults to the system Ruby.
  • Optionally supports auto-switching and the .ruby-version file.
  • Supports [bash] and [zsh].
  • Small (~100 LOC).
  • Has tests.

Anti-Features

  • Does not hook cd.
  • Does not install executable shims.
  • Does not require Rubies be installed into your home directory.
  • Does not automatically switch Rubies by default.
  • Does not require write-access to the Ruby directory in order to install gems.

Requirements

  • [bash] >= 3 or [zsh]

Install

wget -O chruby-0.3.9.tar.gz https://github.com/postmodern/chruby/archive/v0.3.9.tar.gz
tar -xzvf chruby-0.3.9.tar.gz
cd chruby-0.3.9/
sudo make install

PGP

All releases are [PGP] signed for security. Instructions on how to import my
PGP key can be found on my blog. To verify that a release was not tampered
with:

wget https://raw.github.com/postmodern/chruby/master/pkg/chruby-0.3.9.tar.gz.asc
gpg --verify chruby-0.3.9.tar.gz.asc chruby-0.3.9.tar.gz

setup.sh

chruby also includes a setup.sh script, which installs chruby. Simply run the
script as root or via sudo:

sudo ./scripts/setup.sh

Homebrew

chruby can also be installed with [homebrew]:

brew install chruby

Or the absolute latest chruby can be installed from source:

brew install chruby --HEAD

Arch Linux

chruby is already included in the [AUR]:

yaourt -S chruby

Fedora Linux

chruby is available as an rpm on Fedora Copr.

FreeBSD

chruby is included in the official [FreeBSD ports collection]:

cd /usr/ports/devel/chruby/ && make install clean

Rubies

Manually

Chruby provides detailed instructions for installing additional Rubies:

ruby-install

You can also use [ruby-install] to install additional Rubies:

Installing to /opt/rubies or ~/.rubies:

ruby-install ruby
ruby-install jruby
ruby-install rubinius
ruby-install maglev

ruby-build

You can also use [ruby-build] to install additional Rubies:

Installing to /opt/rubies:

ruby-build 1.9.3-p392 /opt/rubies/ruby-1.9.3-p392
ruby-build jruby-1.7.3 /opt/rubies/jruby-1.7.3
ruby-build rbx-2.0.0-rc1 /opt/rubies/rubinius-2.0.0-rc1
ruby-build maglev-1.0.0 /opt/rubies/maglev-1.0.0

Configuration

Add the following to the ~/.bashrc or ~/.zshrc file:

source /usr/local/share/chruby/chruby.sh

Note: OSX does not automatically execute ~/.bashrc, instead try adding to /etc/bashrc.

System Wide

If you wish to enable chruby system-wide, add the following to
/etc/profile.d/chruby.sh:

if [ -n "$BASH_VERSION" ] || [ -n "$ZSH_VERSION" ]; then
  source /usr/local/share/chruby/chruby.sh
  ...
fi

This will prevent chruby from accidentally being loaded by /bin/sh, which
is not always the same as /bin/bash.

Rubies

When chruby is first loaded by the shell, it will auto-detect Rubies installed
in /opt/rubies/ and ~/.rubies/. After installing new Rubies, you must
restart the shell before chruby can recognize them.

For Rubies installed in non-standard locations, simply append their paths to
the RUBIES variable:

source /usr/local/share/chruby/chruby.sh

RUBIES+=(
  /opt/jruby-1.7.0
  "$HOME/src/rubinius"
)

Migrating

If you are migrating from another Ruby manager, set RUBIES accordingly:

RVM

RUBIES+=(~/.rvm/rubies/*)

rbenv

RUBIES+=(~/.rbenv/versions/*)

rbfu

RUBIES+=(~/.rbfu/rubies/*)

Auto-Switching

If you want chruby to auto-switch the current version of Ruby when you cd
between your different projects, simply load auto.sh in ~/.bashrc or
~/.zshrc:

source /usr/local/share/chruby/chruby.sh
source /usr/local/share/chruby/auto.sh

Note: OSX does not automatically execute ~/.bashrc, instead try adding to /etc/bashrc.

chruby will check the current and parent directories for a [.ruby-version]

  1. Other Ruby switchers also understand this file:
    https://gist.github.com/1912050

If you want to automatically run the version of a gem executable specified in
your project's Gemfile, try
rubygems-bundler.

Default Ruby

Once you have loaded chruby.sh and/or auto.sh in your shell configuration,
you can also set a default Ruby. Simply call the chruby function in
~/.bash_profile or ~/.zprofile:

chruby ruby-1.9

If you have enabled auto-switching, simply create a .ruby-version file:

echo "ruby-1.9" > ~/.ruby-version

RubyGems

Gems installed as a non-root user via gem install will be installed into
~/.gem/$ruby/X.Y.Z. By default, RubyGems will use the absolute path to the
currently selected ruby for the shebang of any binstubs it generates. In some
cases, this path may contain extra version information (e.g.
ruby-2.0.0-p451). To mitigate potential problems when removing rubies, you
can force RubyGems to generate binstubs with shebangs that will search for
ruby in your $PATH by using gem install --env-shebang (or the equivalent
short option -E). This parameter can also be added to your gemrc file.

Integration

For instructions on using chruby with other tools, please see the [wiki]:

Examples

List available Rubies:

$ chruby
   ruby-1.9.3-p392
   jruby-1.7.0
   rubinius-2.0.0-rc1

Select a Ruby:

$ chruby 1.9.3
$ chruby
 * ruby-1.9.3-p392
   jruby-1.7.0
   rubinius-2.0.0-rc1
$ echo $PATH
/home/hal/.gem/ruby/1.9.3/bin:/opt/rubies/ruby-1.9.3-p392/lib/ruby/gems/1.9.1/bin:/opt/rubies/ruby-1.9.3-p392/bin:/usr/lib64/qt-3.3/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/home/hal/bin:/home/hal/bin
$ gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 1.8.23
  - RUBY VERSION: 1.9.3 (2013-02-22 patchlevel 392) [x86_64-linux]
  - INSTALLATION DIRECTORY: /home/hal/.gem/ruby/1.9.3
  - RUBY EXECUTABLE: /opt/rubies/ruby-1.9.3-p392/bin/ruby
  - EXECUTABLE DIRECTORY: /home/hal/.gem/ruby/1.9.3/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-linux
  - GEM PATHS:
     - /home/hal/.gem/ruby/1.9.3
     - /opt/rubies/ruby-1.9.3-p392/lib/ruby/gems/1.9.1
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
     - "gem" => "--no-rdoc"
  - REMOTE SOURCES:
     - http://rubygems.org/

Switch to JRuby in 1.9 mode:

$ chruby jruby --1.9
$ ruby -v
jruby 1.7.0 (1.9.3p203) 2012-10-22 ff1ebbe on OpenJDK 64-Bit Server VM 1.7.0_09-icedtea-mockbuild_2012_10_17_15_53-b00 [linux-amd64]

Switch back to system Ruby:

$ chruby system
$ echo $PATH
/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/hal/bin

Run a command under a Ruby with chruby-exec:

$ chruby-exec jruby -- gem update

Switch to an arbitrary Ruby on the fly:

$ chruby_use /path/to/ruby

Uninstall

  1. Remove or comment out chruby from your shell configuration.
  2. Restart your shell (ex: exec $SHELL).
  3. sudo make uninstall

Alternatives

  • [RVM]
  • [rbenv]
  • [rbfu]*
  • [ry]
  • [ruby-version]*

* Deprecated in favor of chruby.

Endorsements

yeah chruby is nice, does the limited thing of switching really good,
the only hope it never grows

-- Michal Papis of [RVM]

I just looooove chruby For the first time I'm in total control of
all aspects of my Ruby installation.

-- Marius Mathiesen

Written by Postmodern, it's basically the simplest possible thing that can
work.

-- Steve Klabnik

So far, I'm a huge fan. The tool does what it advertises exactly and simply.
The small feature-set is also exactly and only the features I need.

-- Patrick Brisbin

I wrote ruby-version; however, chruby is already what ruby-version wanted to

  1. I've deprecated ruby-version in favor of chruby.

-- Wil Moore III

Credits

  • mpapis for reviewing the code.
  • havenwood for handling the homebrew formula.
  • zendeavor for style fixes.
  • #bash, #zsh, #machomebrew for answering all my questions.

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