No Default RVM Ruby

[yfeldblum]

Provide an easy way to disable having a default RVM Ruby while keeping the system Ruby as the default.

Currently, I have to:

node.override.rvm.delete("default_ruby")
node.override.rvm.install_rubies = "disable" # or I get an error

before:

include_recipe "rvm"
node.rvm.rubies.each do |rubie|
  rvm_ruby rubie
end
# because the rvm rubies otherwise won't get installed
# should also do the same thing with global gems

[yfeldblum]

Additionally, once I do the above and have RVM installed and RVM rubies installed but no default RVM ruby (instead continuing to use system ruby as the default)....

When I follow up and do

rvm_gem "whatever" do
  ruby_string "ruby-1.9.2-p180" # that's one of the already-installed RVM rubies
end

then, in the same initial run of the my cookbook (which makes use of your RVM cookbook), I get

ERROR: rvm_gem[whatever] (/srv/chef/cache/cookbooks/myfuncookbook/recipes/myfunrecipe.rb:1:in `from_file') had an error:
Expected process to exit 0, but it exited with 127
---- Begin output of bash -c "source /etc/profile.d/rvm.sh" && rvm ruby-1.9.2-p180 gem env gempath ----
STDOUT: 
STDERR: sh: rvm: not found
---- End output of bash -c "source /etc/profile.d/rvm.sh" && rvm ruby-1.9.2-p180 gem env gempath ----
Ran bash -c "source /etc/profile.d/rvm.sh" && rvm ruby-1.9.2-p180 gem env gempath returned 127
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/shell_out.rb:232:in `invalid!'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/shell_out.rb:218:in `error!'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/mixin/shell_out.rb:33:in `shell_out!'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/provider/package/rubygems.rb:237:in `gem_paths'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/provider/package/rubygems.rb:245:in `gem_source_index'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/provider/package/rubygems.rb:76:in `installed_versions'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/provider/package/rubygems.rb:346:in `matching_installed_versions'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/provider/package/rubygems.rb:329:in `current_version'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/provider/package/rubygems.rb:362:in `load_current_resource'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/resource.rb:394:in `run_action'
/srv/chef/cache/cookbooks/rvm/providers/gem.rb:109:in `gem_package_wrapper'
/srv/chef/cache/cookbooks/rvm/providers/gem.rb:40:in `class_from_file'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/provider.rb:104:in `instance_eval'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/provider.rb:104:in `action_install'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/resource.rb:395:in `send'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/resource.rb:395:in `run_action'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/runner.rb:53:in `run_action'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/runner.rb:89:in `converge'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/runner.rb:89:in `each'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/runner.rb:89:in `converge'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/resource_collection.rb:94
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/resource_collection/stepable_iterator.rb:116:in `call'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/resource_collection/stepable_iterator.rb:116:in `call_iterator_block'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/resource_collection/stepable_iterator.rb:85:in `step'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/resource_collection/stepable_iterator.rb:104:in `iterate'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/resource_collection/stepable_iterator.rb:55:in `each_with_index'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/resource_collection.rb:92:in `execute_each_resource'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/runner.rb:84:in `converge'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/client.rb:268:in `converge'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/client.rb:171:in `run'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/application/client.rb:222:in `run_application'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/application/client.rb:212:in `loop'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/application/client.rb:212:in `run_application'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/../lib/chef/application.rb:62:in `run'
/usr/lib/ruby/gems/1.8/gems/chef-0.9.16/bin/chef-client:26
/usr/bin/chef-client:19:in `load'
/usr/bin/chef-client:19

But on the second attempt to run the cookbook, the "rvm_gem[whatever]" resource succeeds (instead of failing with the above backtrace) as expected.

[fnichol]

Ok, I see a couple of tweaks in the default recipe that I can make. Primarily, handling an empty or nil rvm/default_ruby so you don't have to additionally set rvm/install_rubies to "disable".

I'm also going to see if setting rvm/default_ruby to "system" will keep the system ruby as the default. This works on the regular CLI as far as I remember. If that ends up working, do you think a documentation clarification would help in this case?

Thanks!

[fnichol]

Now I see what you were seeing with your initial chef run (sh: rvm: not found). Looks like it's a behavior change I made for #10, so this needs re-addressing.

[yfeldblum]

The cookbook currently doesn't think that "system" is a known_ruby, and doesn't know what to do with nil or "".

The cookbook should permit nil (and optionally "" and "system") as values signifying that no default ruby should be set (and, if one is set, it should be unset).

In recipes/default.rb, there should be such a check. Alternatively, the check could be moved further up the call chain: e.g., in providers/default_ruby.rb, have an explicit check for nil, "", or "system".

[fnichol]

This should do it. I made the rvm_default_ruby resource take ownership of recognizing an empty or "system" setting so the default recipe should work as well as the standalone resource. I also took your suggestion and now skip iteration of rvm/gems and rvm/global_gems when rvm/install_rubies is set to "disable". If you find anything, let me know. Thanks!

[lock]

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