避免鏡像安裝新發布的寶石

Question

Bundler 1.3.0剛剛發佈（only 10 people已安裝到目前爲止），但我只能安裝預先版本或以前的版本。

$ gem install bundler --version 1.3.0 --verbose 
HEAD http://rubygems.org/specs.4.8.gz 
302 Moved Temporarily 
HEAD http://production.s3.rubygems.org/specs.4.8.gz 
304 Not Modified 
ERROR: Could not find a valid gem 'bundler' (= 1.3.0) in any repository 
HEAD http://rubygems.org/prerelease_specs.4.8.gz 
302 Moved Temporarily 
HEAD http://production.s3.rubygems.org/prerelease_specs.4.8.gz 
304 Not Modified 
ERROR: Possible alternatives: bundler 

$ gem install bundler --version 1.3.0 --clear-sources --source http://rubygems.org --verbose 
HEAD http://rubygems.org/specs.4.8.gz 
302 Moved Temporarily 
HEAD http://production.s3.rubygems.org/specs.4.8.gz 
304 Not Modified 
ERROR: Could not find a valid gem 'bundler' (= 1.3.0) in any repository 
HEAD http://rubygems.org/prerelease_specs.4.8.gz 
302 Moved Temporarily 
HEAD http://production.s3.rubygems.org/prerelease_specs.4.8.gz 
304 Not Modified 
ERROR: Possible alternatives: bundler 

$ gem install bundler --verbose 
HEAD http://rubygems.org/latest_specs.4.8.gz 
302 Moved Temporarily 
HEAD http://production.s3.rubygems.org/latest_specs.4.8.gz 
304 Not Modified 
Installing gem bundler-1.2.4 
/Users/agrimm/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/bundler-1.2.4/.gitignore 
<snip> 
/Users/agrimm/.rbenv/versions/2.0.0-p0/bin/bundle 
Successfully installed bundler-1.2.4 
Parsing documentation for bundler-1.2.4 
Parsing sources... 
100% [100/100] lib/bundler/vlad.rb            
Done installing documentation for bundler (2 sec). 
1 gem installed 

我該如何告訴rubygems查看一個規範的存儲庫，而不是過時的鏡像？

Answer 1

我從rubygems.org下載gem file，並與gem install path/to/gem/file安裝它。

有人說他們安裝了gem install bundler --pre，但我沒有嘗試。

Answer 2

試試這個在您的Gemfile：

gem "nokogiri", :git => "git://github.com/tenderlove/nokogiri.git", :branch => "1.4" 

git "git://github.com/wycats/thor.git", :tag => "v0.13.4" 
gem "thor" 

http://gembundler.com/git.html

或者試試這種寶石：
https://github.com/rdp/specific_install