issue with deployment of my ruby on rails app - ruby-on-rails

Question

I'm trying to solve a problem I'm having lately, deploying from a github production branch with cap: production deploy:migrations to my server.
I saw a potential solution was to follow this page: http://www.kudelabs.com/2012/03/28/rails-3-2-cap-deploy-with-assets
However I got errors at the rake assets:precompile part, running it locally. Terminal suggested I do
bundle exec rake assets:precompile, which I did, but I got the following:
root#ubuntu:~/myapp# bundle exec rake assets:precompile
DEPRECATION WARNING: require "activerecord" is deprecated and will be removed in Rails 3. Use require "active_record" instead. (called from /usr/lib/ruby/vendor_ruby/activerecord.rb:2)
/usr/bin/ruby1.8 /usr/local/bin/rake assets:precompile:all RAILS_ENV=production RAILS_GROUPS=assets
DEPRECATION WARNING: require "activerecord" is deprecated and will be removed in Rails 3. Use require "active_record" instead. (called from /usr/lib/ruby/vendor_ruby/activerecord.rb:2)
rake aborted!
Received wrong number of arguments. [nil]
/var/lib/gems/1.8/gems/omniauth-1.1.0/lib/omniauth/strategy.rb:136:in `initialize'
/var/lib/gems/1.8/gems/actionpack-3.2.3/lib/action_dispatch/middleware/stack.rb:43:in `new'
/var/lib/gems/1.8/gems/actionpack-3.2.3/lib/action_dispatch/middleware/stack.rb:43:in `build'
/var/lib/gems/1.8/gems/actionpack-3.2.3/lib/action_dispatch/middleware/stack.rb:113:in `build'
/var/lib/gems/1.8/gems/railties-3.2.3/lib/rails/application.rb:282:in `inject'
/var/lib/gems/1.8/gems/actionpack-3.2.3/lib/action_dispatch/middleware/stack.rb:113:in `each'
/var/lib/gems/1.8/gems/actionpack-3.2.3/lib/action_dispatch/middleware/stack.rb:113:in `inject'
/var/lib/gems/1.8/gems/actionpack-3.2.3/lib/action_dispatch/middleware/stack.rb:113:in `build'
/var/lib/gems/1.8/gems/railties-3.2.3/lib/rails/engine.rb:470:in `build_middleware_stack'
/var/lib/gems/1.8/gems/railties-3.2.3/lib/rails/application/finisher.rb:31
/var/lib/gems/1.8/gems/railties-3.2.3/lib/rails/initializable.rb:30:in `instance_exec'
/var/lib/gems/1.8/gems/railties-3.2.3/lib/rails/initializable.rb:30:in `run'
/var/lib/gems/1.8/gems/railties-3.2.3/lib/rails/initializable.rb:55:in `run_initializers'
/var/lib/gems/1.8/gems/railties-3.2.3/lib/rails/initializable.rb:54:in `each'
/var/lib/gems/1.8/gems/railties-3.2.3/lib/rails/initializable.rb:54:in `run_initializers'
/var/lib/gems/1.8/gems/railties-3.2.3/lib/rails/application.rb:136:in `initialize!'
/var/lib/gems/1.8/gems/railties-3.2.3/lib/rails/railtie/configurable.rb:30:in `send'
/var/lib/gems/1.8/gems/railties-3.2.3/lib/rails/railtie/configurable.rb:30:in `method_missing'
/home/christophecompaq/myapp/config/environment.rb:5
/var/lib/gems/1.8/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require'
/var/lib/gems/1.8/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require'
/var/lib/gems/1.8/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:236:in `load_dependency'
/var/lib/gems/1.8/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require'
/var/lib/gems/1.8/gems/railties-3.2.3/lib/rails/application.rb:103:in `require_environment!'
/var/lib/gems/1.8/gems/railties-3.2.3/lib/rails/application.rb:292:in `initialize_tasks'
/var/lib/gems/1.8/gems/actionpack-3.2.3/lib/sprockets/assets.rake:93
/var/lib/gems/1.8/gems/actionpack-3.2.3/lib/sprockets/assets.rake:60
Tasks: TOP => environment
(See full trace by running task with --trace)
rake aborted!
Command failed with status (1): [/usr/bin/ruby1.8 /usr/local/bin/rake asset...]
/var/lib/gems/1.8/gems/actionpack-3.2.3/lib/sprockets/assets.rake:12:in `ruby_rake_task'
/var/lib/gems/1.8/gems/actionpack-3.2.3/lib/sprockets/assets.rake:21:in `invoke_or_reboot_rake_task'
/var/lib/gems/1.8/gems/actionpack-3.2.3/lib/sprockets/assets.rake:29
Tasks: TOP => assets:precompile
(See full trace by running task with --trace)
root#ubuntu:~/myapp#
Can anyone tell me where the problem might be?

Answer 1

If this is an initial deploy, try to remove
load 'deploy/assets'
Then try to
cap deploy:setup
cap deploy:cold
In this case you app will be deployed but without any assets :)
Then you need to add this:
#to the top of your deploy.rb namespace :deploy block
namespace :assets do
task :precompile, :roles => :web do
from = source.next_revision(current_revision)
if capture("cd #{latest_release} && #{source.local.log(from)} vendor/assets/ lib/assets/ app/assets/ | wc -l").to_i > 0
run_locally("rake assets:clean && rake assets:precompile")
run_locally "cd public && tar -jcf assets.tar.bz2 assets"
top.upload "public/assets.tar.bz2", "#{shared_path}", :via => :scp
run "cd #{shared_path} && tar -jxf assets.tar.bz2 && rm assets.tar.bz2"
run_locally "rm public/assets.tar.bz2"
run_locally("rake assets:clean")
else
logger.info "Skipping asset precompilation because there were no asset changes"
end
end
task :symlink, roles: :web do
run ("rm -rf #{latest_release}/public/assets &&
mkdir -p #{latest_release}/public &&
mkdir -p #{shared_path}/assets &&
ln -s #{shared_path}/assets #{latest_release}/public/assets")
end
end
Then recheck if you have this in your production.rb
config.serve_static_assets = false
# Compress JavaScripts and CSS
config.assets.compress = true
# Don't fallback to assets pipeline if a precompiled asset is missed
config.assets.compile = false
# Generate digests for assets URLs
config.assets.digest = true
After all this work, change some thing in you assets, for example add new line in application.css, this will tell "task :precompile" to realy precomlile and upload new assets, because new assets was added..