Freezing Rails gem versions - ruby-on-rails

I am trying to freeze my Rails gem version as, day by day, some or the other gem version gets updated and sometimes I need to update the code.
I tried rake rails:freeze:gems but this gave me error:
rake aborted!
Don't know how to build task 'rails:freeze:gems'

This locks and then caches the gems into ./vendor/cache.
$ bundle package
Refer this link

rake rails:freeze:gems is an old Rails 2 way of doing it. I think you want to use Bundler's bundle install vendor/gems
"How do I freeze gems into a Rails 3 application?" seem to answer it better.

Related

Ruby on Rails Trouble - rake-12.3.1

Anytime I try running the following basic rails commands, e.g. rails g model or rails console, I encounter the following error;
Could not find rake-12.3.1 in any of the sources
Run bundle install to install missing gems.
I've already looked through the forums for solutions and haven't found anything that solves my problem.
My gem file includes the necessary gem and I already ran bundle install.
Thanks in advance for your help.
This is because you have two versions of rake instaled.
Sometimes you have two rails projects with different rake versions and you did bundle install in one and after in another. (now you have two rake versions)
try gem uninstall rake
This command above will show you two these rake versions. You have to type the number that you want to unistall.

Gem::LoadError: Rake?

I'm trying to run rake db:migrate locally but I'm getting the below error:
Gem::LoadError: You have already activated rake 10.2.2, but your Gemfile requires rake 10.1.1. Using bundle exec may solve this.
Not sure why this is happening? It came out of no where.
Any idea how to resolve this?
Cheers
You can delete your Gemfile.lock. Then run bundle install and bundler will recreate updated Gemfile.lock with correct rake.
I just did that and this worked for me.
Do as it says. Call rake as
bundle exec rake
Or, alterantively, run bundler like this:
bundle install --binstubs
And then:
bin/rake
This is happening because there're different versions of rake installed on your system, and it is loading the wrong one by default.
Try running bundle exec rake db:migrate and see if that works for you.
You seem to have multiple versions of rake installed. Do gem list to identify if that is the case.
Depending on that, you may want to uninstall one version using gem uninstall rake.
None of these worked for me but I found a fix. In the application folder you are making (where you find app bin ect..) Open your "Gemfile.lock" find "rake 10.1.1"(just use find or search), change it to 10.2.2, save then rake. Good luck
I think that updating all Gemfile.lock is dangerous, especially when you have many gems without a specific versions. Sometimes when you update a gem some behaviour is changed and it is really annoying to find why it happened.
For myself, I had the same problem and the solution was to modify Gemfile:
gem 'rake', "~> 10.2.2"
to
gem 'rake', "~> 11.1.2"
and then run
bundle update rake
I didn't/don't specify gem 'rake' in my Gemfile, so I simply ran bundle update rake which correctly updated Gemfile.lock.

How to run a specific version of rake

Background:
I get errors whenever I run rake in an older project. (uninitialized constant Rake::DSL).
The rails project in question is an old project that was started with Rails 2.1 (I think), and since then I've updated the OS on my laptop a couple of times, and made updates along the way to make it run.
Right now, the rails app works fine, provided I have RAILS_GEM_VERSION set to 2.3.5. I'm not sure if the app was completely updated to Rails 2.3.5.
There is no Gemfile in my older project.
If I create a brand-new rails project (and unset RAILS_GEM_VERSION), rake runs fine.
My question: To troubleshoot, I'd like to try newer versions of rake. I'd like to know how to force one specific version to be used, since it appears I have multiple versions installed.
Info on my environment:
$ gem list rake
*** LOCAL GEMS ***
rake (0.9.2.2, 0.9.2, 0.8.7, 0.8.3)
$ rake --version
rake, version 0.8.7
So it looks like it's picking up the 0.8.7 version.
All the help files online seem to tell me to specify the rake version in the Gemfile, but there isn't one in this project. (Maybe it predates gemfiles?)
If I unset the RAILS_GEM_ENVIRONMENT variable altogether, and try to run rake, I get:
rake aborted!
can't activate rails (= 2.3.5, runtime) for [], already activated rails-3.2.8 for []
None of the environment config files in my older project set that variable either.
This may be of help. Have you tried the underscore solution?
Example:
rake _0.9.2_
you can run rake specific version by using this
bundle exec rake ...
more detail see this - bundle exec, rake
You can uninstall the current version of rake and install another desired version using commands similar to the following:
gem uninstall rake 12.3.1
gem install rake 10.5.0
(Note: you might need to run as sudo for permissions)
I had a problem where I received the following error while trying to install rake 10.5.0:
Could not find a valid gem '0.8.7' (>= 0) in any repository
I resolved this problem by adding the following line to my Gemfile:
gem 'rake', ' <11.0'
After editing Gemfile I was able to successfully downgrade rake by updating my gems:
bundle update

Don't Understand Bundler Interaction with Gems

I thought I understood how Bundler works with gems, but after something that recently happened, I am not sure I have it right.
I am developing an Rails application. To start off (and just so I would get familiar with the Rails environment which I haven't worked in before), I did not use an IDE. But, because I'm missing out on some of the advantages of an IDE, I just started using RubyMine. As part of the RubyMine setup, it asked to update all my gems for my existing project.
After that, I could not run "rake [anything]". Every time I did, I received an error of:
You have already activated rake 0.9.3.beta.1, but your Gemfile
requires rake 0.9.2.2. Using bundle exec may solve this.
I was okay updating to the next version of rake - that wasn't a problem - but I don't understand what happened in the first place. What happened that I "activated" a newer version of rake. Ultimately, I ended up solving the problem by putting
gem 'rake', '0.9.3.beta.1'
in my Gemfile and running
bundle update rake
But, I'm still not sure what happened here. If I was using 9.2.2 before, why did it all of a sudden blow up like that and how can I prevent that in the future?
If you are using Rubymine, you should configure it to run rake tasks with bundle exec.
Go to:
Run -> Edit Configurations -> Defaults -> Rake -> Bundler tab and check "Run the script in context of the bundle (bundle exec)"
Delete all tasks already created and the default will apply the next time you create them again. You can also configure individually each task created.
You should really consider installing and using RVM or Rbenv to manage your ruby versions and gemsets. If you go the Rbenv way, the rbenv-gemset plugin can be used to manage gemsets similar to how RVM natively does.
You have already activated rake 0.9.3.beta.1, but your Gemfile requires rake 0.9.2.2. Using bundle exec may solve this.
At some point between your last bundle execution and installing/configuring/running RubyMine you must have installed rake 0.9.3.beta.1. Because you're not managing your gems through gemsets like RVM or Rbenv will do for you, the default version of Rake became 0.9.3.beta.1 instead of the version installed by bundler, 0.9.2.2.
The above error suggests your Gemfile had something like
gem 'rake', '0.9.2.2'
which does not allow the version of rake being used to be anything but 0.9.2.2.
If you do in fact have 0.9.2.2 on your system in addition to the 0.9.3.beta.1 and your Gemfile is configured for 0.9.2.2, instead of running
rake some:task
you can run
bundle exec rake some:task
and bundler will run some:task through the 0.9.2.2 version of rake. Running tasks related to gems found in a Gemfile through bundleer with bundle exec ... is considered good practice regardless of using RVM or Rbenv.
You can read about bundle exec here.

How do I keep all gems in Gemfile compatible after an update

My question has already been asked here, but I am trying to understand the reasons behind it as opposed to how to work around it.
The error I got was;
You have already activated rspec-core 2.7.1, but your Gemfile requires rspec-core 2.6.4. Using bundle exec may solve this. (Gem::LoadError)
Now I have been given various solutions like using "mpapis-bundler", or to create a shorthand for "bundle exec", but I was under the impression that that was what
$bundle install --binstubs
was for.
More specifically, since I have no version numbers stated in my gemfile for rspec-rails, why do I have this incompatibility? My error also occurred when I tried
$rake db:migrate
telling me that
You have already activated rake 0.9.2.2, but your Gemfile requires rake 0.9.2. Consider using bundle exec.
Any explanations would be appreciated.
EDIT:
All my gems for my app are in a gemset, and I have updated my gems again. Should an update not make sure that related gems are compatible?
This happens when you install more recent gems in your system than the one in your Rails app.
Bundler simply tells ou that you must stick with those your Gemfile states.
This is the purpose of running:
bundle exec rake db:migrate
-> running the very same rake version your Gemfile provides.
Concerning updating gems from gemfile, simply do:
bundle update
The easiest way to avoid this kind of boring stuff is to isolate your gems by creating gemsets. I use RVM for this purpose.
Regarding the rake version 0.9.2.2, either ways to do is create a new gemset for the project and maintain the gem version matching your Gemfile.
For instance if there are two rake gem containing versions 0.9.2 and 0.9.2.2, specifying rake version '0.9.2' though installs, but does not run any tasks apart from blowing error saying
'You have already activated rake 0.9.2.2, but your Gemfile requires rake 0.9.2. Using bundle exec may solve this.'
I expect bundle install to lock the gem version in Gemfile.lock and pick the rake 0.9.2, but it looks in the gemset, where by default rake 0.9.2.2 is enabled.
Just reminding the purpose of bundle install from agile web development with rails book,
'bundle install will use the Gemfile.lock as a starting point, and install only the
versions of the various gems as specified in this file. For this reason, it is
important that this file gets checked into your version control system, as this
will ensure that your colleagues and deployment targets will all be using the
exact same configuration.'
but it doesn't work that way,
The better is to uninstall rake 0.9.2.2 and use rake 0.9.2 or, use bundle update rake, that updates the rake version in Gemfile.lock to 0.9.2.2
As #apneadiving said, running "$bundle install" updates all your bunldes. However, after running "$bundle install --binstubs" I still got errors for incompatible gems whenever I omitted the "bundle exec" part.
Subsequently I needed to update my Gemfile as I added another gem, and now they work. I'm assuming the incompatibilities were solved by the gem creators.

Resources