Debugging performance issues in your Rails app can be a tough challenge. To get more detailed insights consider using the...
If you need to make an HTTPS connection to a host which uses an expired certificate, do not disable certificate...
It's 2024 and we have tools like ffmpeg, imagemagick and GPT readily available. With them, it's easy to...
There are a few tools to combat the dreaded n+1 queries. The bullet gem notifies you of missing eager...
Here are some hints on best practices to maintain your tasks in larger projects. Rake Tasks vs. Scripts
The linked article suggests an interesting way to speed up tests of Rails + Postgres apps: PostgreSQL allows the creation of...
Getting an entire test suite green can be a tedious task which involves frequent switches between the CLI that is...
This Capistrano task runs a command on all servers. bundle exec cap production app:run cmd='zgrep -P "..." RAILS_ROOT/log/production.log...
In the Gitlab settings the flag Auto-cancel redundant pipelines is enabled by default. This auto-cancels jobs that have...
Getting CSS (and JS) live reloading to work in a esbuild / Rails project is a bit of a hassle, but...
On the Rails console, assigning an object to a variable can lead to this strange error (without stacktrace): irb > recipient...
Most of our applications use CarrierWave for file uploads. CarrierWave has an integrated processing mechanism for different file versions with...
The recommended additional setup of the spreewald gem, a useful set of cucumber steps, includes adding a file for defining...
We regularly have tasks that need to be performed around a deploy. Be it to notify operations about changed application...
Note Don't use reruns as a mean to work around flaky tests. You should always try to fix those...
The linked rbenv plugin rbenv-each is very helpful to keep QoL gems up to date that are not part...
You don't want sensitive user data in your logs. Background Rails per default filters sensitive data like...
Both knapsack and parallel_tests have the option to split groups by historic execution time. The required logs for this...
For my computer science bachelor's thesis I programmed and evaluated a CLI Test Case Prioritization (TCP) tool for makandra...
Rails' url_for is useful for generating routes from a Hash, but can lead to an open redirect vulnerability.
When you write your next CarrierWave uploader, consider processing your images with libvips instead of ImageMagick. Reasons for libvips
When RubyMine reports Rubocop returning "exit code -1", upgrading Rubocop can be the fix: gem install rubocop "The logs" can...
It most cases it's not necessary to add a version constraint next to your gems in the Gemfile. Since...
If you have a fully functional CI pipeline but no CD, you might find yourself frequently waiting for CI (with...