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Ruby: The future of frozen string literals

What is a literal?

In programming languages, literals are textual representations of values in the source code. This is a syntactical concept.

Some examples:

7 # integer literal

How to deploy a Rails 7.1 app with Postgres and Kamal on a single server

I think you have looked at the tutorial from Mr. Heinemeier Hansson at least once or twice and have a similar setup.

rails new kamal_pg --css tailwind --skip-test --database=postgresql

cd kamal_pg
module SessionSystemTestHelper
def sign_in_as(user)
visit root_url # any fast-to-load page will do
cookie_jar = ActionDispatch::TestRequest.create.cookie_jar
cookie_jar.signed[:session_token] = user.sessions.create.token
page.driver.browser.manage.add_cookie(name: "session_token", value: cookie_jar[:session_token], sameSite: :Lax, httpOnly: true)
end
end
@yahonda
yahonda / ruby31onrails.md
Last active June 25, 2024 20:26
Ruby 3.1 on Rails

Ruby 3.1 on Rails

Actions required to use Ruby 3.1.0 with Rails

Rails 7.0.Z

  • Rails 7.0.1 is compatible with Ruby 3.1.0.
  • Rails 7.0.1 addes net-smtp, net-imap and net-pop gems as Action Mailbox and Action Mailer dependency, you do not need to add them explicitly in your application Gemfile anymore.
  • thor 1.2.1 has been released. You will not see DidYouMean::SPELL_CHECKERS.merge deprecate warnings anymore.

Rails 6.1.Z

  • Use Rails 6.1.5 to support database.yml with aliases and secrets.yml with aliases.
@Envek
Envek / login_helpers.rb
Created October 11, 2021 06:42
Signing-in user for integration tests via cookie-only session with Rails, Devise, Capybara, and Cuprite
# spec/system/support/login_helpers.rb
# See this blog post for setup guide: https://evilmartians.com/chronicles/system-of-a-test-setting-up-end-to-end-rails-testing
module LoginHelpers
def login_as(user)
# Craft session cookie to make request authenticated (to pass even routing constraints)
# Compilation of these:
# - https://dev.to/nejremeslnici/migrating-selenium-system-tests-to-cuprite-42ah#faster-signin-in-tests
# - https://turriate.com/articles/2011/feb/how-to-generate-signed-rails-session-cookie
# - https://github.com/rails/rails/blob/43e29f0f5d54294ed61c31ddecdf76c2e1a474f7/actionpack/test/dispatch/cookies_test.rb#L350
@brenogazzola
brenogazzola / migrate_im_to_vips.md
Last active July 23, 2024 17:51
Steps to migrate ImageMagick to Libvips

For apps built before the image_processing gem became the default, the migration will involve two steps:

  1. Migrating to the image processing syntax while still using ImageMagick;
  2. Switching to Vips and updating the compression options;

Migrate to the image processing syntax

Before changing from ImageMagick to Vips, it's better to first test the new syntax and ensure everything is still working.

1. Move everything that has to do with compression to a saver hash:

variant(format: :jpg, strip: true, quality: 80)
@gastricsparrow
gastricsparrow / surprised_pikachu.txt
Created December 6, 2018 06:04
Surprised Pikachu for all your test passing needs
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,@@, ,@@, ./, .&@# ,@@, %@% ,@@@@@@@@@% ./. .&@# /*. /@@. ,@@, %@% *&@&. ,,
,@@, ,@@@@@@@% .#&@@@@&/ ,@@, %@% .&@# ,@@/.#&@@@@&/ /%&@@@@. ,@@@@@@@% %@@@@@. ,@@,
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@zulhfreelancer
zulhfreelancer / upgrade.md
Last active February 17, 2023 00:42
How to upgrade Heroku Postgres database plan?
  1. Assuming you have multiple Heroku apps and Git remote like so:
development https://git.heroku.com/xxx.git (fetch)
development https://git.heroku.com/xxx.git (push)
origin      git@bitbucket.org:xxx/xxx.git  (fetch)
origin      git@bitbucket.org:xxx/xxx.git  (push)
production  https://git.heroku.com/xxx.git (fetch)
production  https://git.heroku.com/xxx.git (push)
staging https://git.heroku.com/xxx.git (fetch)
@heron2014
heron2014 / react-native-maps-enable-google-maps-instructions.md
Last active May 21, 2024 07:25
Visual instructions how to enable Google Maps on IOS using react-native-maps

Visual instructions how to enable Google Maps on IOS using react-native-maps

UPDATE: Following instructions are now a year old. I have recently managed to upgrade react-native-maps from 0.17 to the latest version 0.21 with react-native 0.51 - if you want to follow my instruction scroll down to the end this doc! Hope that will work for you too!

This is for my personal use, things might not be correctly explained here. For the official docs please check https://github.com/airbnb/react-native-maps

Steps from scratch:

1.react-native init GoogleMapPlayground