RVM, Capistrano and bundler path issues

问题

i seem to have a discrepancy between production's gem path when I installed manually versus by bundler+capistrano.

After rvm installing ruby 1.9.2 and creating a gemset "myapp", i did install bundler via gem install bundler.

It was installed into the path:

/usr/local/rvm/gems/ruby-1.9.2-p290@myapp/gems

Bundler via Capistrano installed the remaining gems into:

/usr/local/rvm/gems/ruby-1.9.2-p290@myapp/ruby/1.9.1/gems

Beginning of my deploy.rb file is:

$:.unshift(File.expand_path('./lib', ENV['rvm_path']))
require 'rvm/capistrano'
require 'bundler/capistrano'

set :rails_env,             'production'
set :rvm_type,              :system
set :rvm_ruby_string, "ruby-1.9.2-p290@myapp"
set :rvm_path,              "/usr/local/rvm"
set :rvm_bin_path,      "#{rvm_path}/bin"
set :rvm_lib_path,      "#{rvm_path}/lib"

set :default_environment, {
  'PATH'                    => "#{rvm_path}/gems/ruby/1.9.1/bin:#{rvm_bin_path}/bin:$PATH",
  'RUBY_VERSION'    => '1.9.2',
  'GEM_HOME'        => "#{rvm_path}/gems/#{rvm_ruby_string}",
  'GEM_PATH'        => "#{rvm_path}/gems/#{rvm_ruby_string}",
  'BUNDLE_PATH'     => "#{rvm_path}/gems/#{rvm_ruby_string}"
}

set :bundle_dir,            "#{rvm_path}/gems/#{rvm_ruby_string}"
set :bundle_flags,      "--deployment --verbose"

回答1:

Annoyingly, bundler folks have no intention on working well with RVM and want bundler to manage ruby versions so the workaround so far for me is to simply symbollically link for ruby and 1.9.1 in my GEM_PATH directory pointing to "."

回答2:

After you created your gemset, did you explicitly "rvm use 1.9.2@myapp" before installing bundler?

回答3:

I've encountered similar problems with capistrano/bundler/rvm setups.

At least in my case, if I run

bundle exec <command>

from the capistrano created installation:

/u/apps/<app-name>/current

I pick up my GEMDIR

bundle exec env | grep GEM_HOME
GEM_HOME=/u/apps/app-name/shared/bundle/ruby/1.9.1

来源：https://stackoverflow.com/questions/7313232/rvm-capistrano-and-bundler-path-issues

标签

ruby-on-rails-3

gem

rvm

capistrano

bundler