Specify Gem Installation Directory
I Have Some Trouble Here. I Am Working with a Rails 2.3 Project (Working on the Production Server Through Ssh - Don't Ask Why). Here Is the Gemfile. When...
I have some trouble here. I am working with a Rails 2.3 project (working on the production server through ssh - don't ask why). Here is the Gemfile. When delayed_jobs is trying to start, the output says I need to install the bundler gem. The problem is that the gemdir is /var/lib/gems/1.8/ and I don't have the write priviliges for that directory. However there is a directory under ~/projects/shared/gems/ruby/1.8/gems where I can write.
How can I define the installation path for a gem?
4 Answers
To install foo gem to a specified folder, just use --install-dir option, i.e.
$ gem install --install-dir /path/to/gems/folder foo
It helps when:
- one cannot use
bundle install- e.g. if one wants to install bundle gem itself, or wants to install a gem (which is not listed in Gemfile) into the bundle folder sudo gem installcommand fails due to lack of write-permissions for a default installation path
Hope that helps.
You can add the following to your config.ru file:
ENV['GEM_HOME']="#{ENV['HOME']}/projects/shared/gems/ruby/1.8/gems"
ENV['GEM_PATH']="#{ENV['GEM_HOME']}:/var/lib/ruby/gems/1.8"
require 'rubygems'
Gem.clear_paths
This will tell your rack app where to look for gems.
Also configure your server .bashrc:
export GEM_HOME="$HOME/projects/shared/gems/ruby/1.8/gems"
export GEM_PATH="$GEM_HOME:/var/lib/ruby/gems/1.8"
The environment variable GEM_HOME defines the gem installation location. You need to set it to desired location. The command is OS specific.
In Windows it is set
set GEM_HOME=[path]/projects/shared/gems/ruby/1.8/gems
Linux would be export
export GEM_HOME=~/projects/shared/gems/ruby/1.8/gems
bundler accepts a --path option.
bundle install --path vendor/bundle
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