I'd like to use gems specified from Gemfile that I uploaded. However, I keep getting
/usr/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require': cannot load such file -- capybara (LoadError) from /usr/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require' from app.rb:3:in `<main>'
Seems like the code cannot find the required gems. This is my .worker file:
runtime "ruby"
stack "ruby-2.1"
exec "app.rb"
gemfile "Gemfile"
full_remote_build true
My Gemfile:
source "https://rubygems.org"
gem "capybara"
gem "capybara-webkit"
I uploaded my work using this command:
zip -r my_work.zip . ; iron worker upload --zip my_work.zip --name my_work iron/ruby ruby app.rb ; iron worker queue --wait my_work
Thanks in advance.
There's a couple things here:
1) you are using full_remote_build with a .worker file, but then uploading the zip. Those two things don't go together, it's one or the other.
2) Be sure you are vendoring the gems so they are included when you zip them. To vendor: docker run --rm -v "$PWD":/worker -w /worker iron/ruby:dev bundle install --standalone --clean. Then at the top of your script, add: require_relative 'bundle/bundler/setup'.
See the documentation here for more details: https://github.com/iron-io/dockerworker/tree/master/ruby
Related
I am trying to include the ruby-mysql gem in my ruby script. I have installed the gem using bundler but when I run bundle exec ./mysql_connector, I receive the error ./mysql_connector:4:in ``require': cannot load such file -- ruby-mysql (LoadError). Can you please help me troubleshoot what the problem is?
What I did
Installed rails in my home directory.
I do not have root access to the server so I have installed rails in my local directory by following the instructions here:
http://www.r-bloggers.com/installing-ruby-on-linux-as-a-user-other-than-root/
Created a directory for my application.
My application resides in my home directory in a folder called connector. It has a Gemfile that looks like this:
source 'https://rubygems.org'
gem 'ruby-mysql'
Call bundle install.
Using ruby-mysql 2.9.14
Using bundler 1.11.2
Bundle complete! 1 Gemfile dependency, 2 gems now installed.
Bundled gems are installed into ./vendor/bundle.
Add dependencies to my script. My script is in connector/mysql_connector and it reads:
#!/home/dcox/bin/ruby
require 'rubygems'
require 'bundler/setup'
require 'ruby-mysql'
Make script executable. I saw that you need to run bundle exec using an executable file, so I followed the instructions here to make my script executable: http://commandercoriander.net/blog/2013/02/16/making-a-ruby-script-executable/
Run the script. I execute using bundle exec mysql_connector and see:
/home/dcox/bin/mysql_connector:4:in `require': cannot load such file -- ruby-mysql (LoadError)
from /home/dcox/bin/mysql_connector:4:in `<main>'
Is it the $LOAD_PATH? After searching around for answers, I discovered a lot of SO answers as well as a blog post (https://codedecoder.wordpress.com/2013/09/23/require-and-load-in-ruby-loaderror-cannot-load-such-file/) that seem to suggest the problem is that the gem is not installed in a directory on the $LOAD_PATH. Here is what I see when I run $LOAD_PATH from IRB:
irb(main):002:0> $LOAD_PATH
=> ["/home/dcox/lib/ruby/site_ruby/2.1.0",
"/home/dcox/lib/ruby/site_ruby/2.1.0/x86_64-linux",
"/home/dcox/lib/ruby/site_ruby", "/home/dcox/lib/ruby/vendor_ruby/2.1.0",
"/home/dcox/lib/ruby/vendor_ruby/2.1.0/x86_64-linux",
"/home/dcox/lib/ruby/vendor_ruby", "/home/dcox/lib/ruby/2.1.0",
"/home/dcox/lib/ruby/2.1.0/x86_64-linux"]
Next I checked to see the location of ruby-mysql:
dcox#analytics1:~/connector$ bundle show ruby-mysql
/data/home/dcox/connector/vendor/bundle/ruby/2.1.0/gems/ruby-mysql-2.9.14
Obviously my connector/vendor/bundle path is not on the $LOAD_PATH. I could add it, but I have a feeling I am missing something simple here because bundler is supposed to work as long as you follow the instructions, right?
Any advice or help is very much appreciated! Thanks!!
If you just want to require this specific gem, require 'mysql' should work (e.g., https://github.com/tmtm/ruby-mysql/blob/master/test/test_mysql.rb#L10).
Your file should call Bundler.setup http://bundler.io/bundler_setup.html
Better yet, if you instead call Bundler.require(:default) it will setup and require all the gems in your Gemfile for you.
I am using a local gem (on my machine) with another application that is a command line app.
I have something like this in the gemfile to refer to the local gem:
gem 'mygem', :path => '/Users/devmachine/Projects/mygem'
When I run bundle console I am able to use the gem and all is well. However, whenever I run my test suite (rspec) I get the following message:
ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- mygem (LoadError)
I'm confused. Any ideas?
You need to run:
bundle exec rspec
If you are not using the bundle evironment rspec won't know what you put in your Gemfile and just use the Gems it finds installed.
I'm trying to build my first gem. Using Ryan Biggs' tutorial as my guide, I did the following:
1) Created the gem scaffolding:
$ bundle gem hello_world
2) Edited the lib/hello_world.rb file:
require "hello_world/version"
module HelloWorld
def hi
"Hello world!"
end
end
3) Installed the gem via bundler:
$ cd hello_world
$ bundle install
At this point, if I run
$ bundle show hello_world
it shows
/Users/ykessler/gems/hello_world
so it looks like it installed.
But when I try to require the gem from irb:
require '/Users/ykessler/gems/hello_world'
it can't load it:
2.0.0-p195 :003 > require '/Users/ykessler/gems/hello_world'
LoadError: cannot load such file -- /Users/ykessler/gems/hello_world
from /Users/ykessler/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require'
from /Users/ykessler/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require'
from (irb):3
from /Users/ykessler/.rvm/rubies/ruby-2.0.0-p195/bin/irb:16:in `<main>'
Where am I going wrong?
You need to run gem build hello_world.gemspec
Then to install it, you run gem install hello_world from the root of your gem project. That will install your local gem using the .gem file that we just created in your directory (not the gem from rubygems.org if it exists).
Now, if you run gem list, you should see it. You should now be able to require your gem and and access your library from other ruby code. All you have to write is require 'hello_world'. There is no need to type the full path. In fact, that's a bad idea.
This is all explained pretty clearly in the rubygems.org documentation (http://guides.rubygems.org/make-your-own-gem/). It's very clear, helpeful, and it's where I learned how to make my first gem.
I have a Ruby IronWorker which depends on a private gem that isn't published to RubyGems.
Is there a way to merge this local mygemname-0.0.1.gem into my IronWorker in the .worker file?
I'm hoping to be able to specify something the following in myruby.worker:
gem 'mygemname', '>=0.0.1', :path=> 'vendor/bundle'
Currently this give the following error
.rvm/gems/ruby-1.9.3-p0/gems/iron_worker_ng-0.12.2/lib/iron_worker_ng/code/base.rb:79 :in `eval':
wrong number of arguments (3 for 2) (ArgumentError)
Hoping for defaults gives:
gem 'mygemname', '>=0.0.1'
Gives the following error
Could not find gem 'mygemname (>= 0.0.1) ruby' in the gems available on this machine.
Am I on the right track trying to get this to work via the .worker file? Or should I be looking into specifying a custom build step?
If your unpublished gem itself has dependancies, you need to do a little massaging to get things going. Here is a technique that works for me:
mygem.worker
runtime "ruby"
#Merge in an unpublished local gem
dir '../opensource-cli-tools/facebook_exporter', '__gems__/gems'
file '../opensource-cli-tools/facebook_exporter/mygem.gemspec', '__gems__/specifications'
#Merge in a custom build script to fetch the unpublished gem's dependancies
file "Gemfile"
file "install_dependancies.sh"
remote_build_command 'chmod +x install_dependancies.sh && ./install_dependancies.sh'
#Run the puppy!
exec "run.rb"
install_dependancies.sh
echo "Installing dependancies to __gems__/"
gem install bundler --install-dir ./__gems__ --no-ri --no-rdoc
bundle install --standalone --path ./__gems__
cp -R ./__gems__/ruby/*/* ./__gems__
rm -rf ./__gems__/ruby
echo "Fixing install location of mygem"
mv ./__gems__/gems/mygem ./__gems__/gems/mygem-0.0.1
As far as i know, git and local paths unsupported right now.
Here is way to manually include local gem:
Add these lines to .worker file:
dir '../vendor/bundle/mygemname', '__gems__/gems'
file '../vendor/bundle/mygemname/mygemname.gemspec', '__gems__/specifications'
I have a Rails app with some non-Rails-dependent files under `lib/services'. One of these files uses the Domainatrix gem.
require "domainatrix"
class SuggestionParser
# various suggestion parsing methods
end
I have an empty spec for this file under spec/lib.
require "services/suggestion_parser"
describe SuggestionParser do
end
Unfortunately, when I try to run that spec without bundle exec I hit an error:
$: rspec spec/lib/services/suggestion_parser_spec.rb
-> /Users/davidtuite/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require': cannot load such file -- domainatrix (LoadError)
Every other spec and gem in my project will run without using bundle exec. Why do I need to prefix this one in order to get it to run?
For convenience, here's a link to the Domainatrix gemspec.
My guess would be that domainatrix is declared using the :path or :git options in the Gemfile, neither of which install the gem in a way that makes it accessible to rubygems.
This could be confirmed if you post the line for domainatrix from the Gemfile.
try running the following commands:
$ rvm get head && rvm reload
$ chmod +x $rvm_path/hooks/after_cd_bundler
$ bundle install --without production --binstubs=./bundler_stubs
This won't solve the specific problem with your gem, but it will take away the necessity to type in bundle exec every time you run your tests if you're using rvm.