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Description

This is a companion to the "Ten Years of Rails Upgrades" conference talk. You'll find various utilities that we use at Clio to help us prepare for and complete Rails upgrades.

These scripts are still early days and may not work in every environment or app.

I wouldn't recommend adding this to your Gemfile long-term. Rather, try out the scripts and use them as a point of reference. Feel free to tweak them to better fit your environment.

Monthly Downloads: 362
Programming language: Ruby
License: MIT License
Latest version: v1.0.2

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README

Ten Years of Rails Upgrades

This is a companion to the "Ten Years of Rails Upgrades" conference talk. You'll find various utilities that we use at Clio to help us prepare for and complete Rails upgrades.

These scripts are still early days and may not work in every environment or app.

I wouldn't recommend adding this to your Gemfile long-term. Rather, try out the scripts and use them as a point of reference. Feel free to tweak them to better fit your environment.

Usage

bundle_report

Learn about your Gemfile and see what needs updating.

# Show all out-of-date gems
bundle_report outdated
# Show five oldest, out-of-date gems
bundle_report outdated | head -n 5
# Show gems that don't work with Rails 5.2.0
bundle_report compatibility --rails-version=5.2.0
bundle_report --help

Deprecation tracking

If you're using RSpec, add this snippet to rails_helper.rb or spec_helper.rb (whichever loads Rails).

RSpec.configure do |config|
  # Tracker deprecation messages in each file
  if ENV["DEPRECATION_TRACKER"]
    DeprecationTracker.track_rspec(
      config,
      shitlist_path: "spec/support/deprecation_warning.shitlist.json",
      mode: ENV["DEPRECATION_TRACKER"],
      transform_message: -> (message) { message.gsub("#{Rails.root}/", "") }
    )
  end
end

We don't use MiniTest, so there isn't a prebuilt config for it but I suspect it's pretty similar to DeprecationTracker.track_rspec.

Once you have that, you can start using deprecation tracking in your tests:

# Run your tests and save the deprecations to the shitlist
DEPRECATION_TRACKER=save rspec
# Run your tests and raise an error when the deprecations change
DEPRECATION_TRACKER=compare rspec

deprecations command

Once you have stored your deprecations, you can use deprecations to display common warnings, run specs, or update the shitlist file.

deprecations info
deprecations info --pattern "ActiveRecord::Base"
deprecations run
deprecations --help # For more options and examples

Right now, the path to the shitlist is hardcoded so make sure you store yours at spec/support/deprecations.shitlist.json.

Dual-boot Rails next

This command helps you dual-boot your application.

next --init         # Create Gemfile.next
vim Gemfile         # Tweak your dependencies conditionally using `next?`
next bundle install # Install new gems
next rails s        # Start server using Gemfile.next

Installation

Add this line to your application's Gemfile:

gem 'next_rails'

And then execute:

$ bundle

Or install it yourself as:

$ gem install next_rails

License

The gem is available as open source under the terms of the MIT License.


*Note that all licence references and agreements mentioned in the Next Rails README section above are relevant to that project's source code only.