I recently did a quick research on how to better write down multiline statements like this: # Dockerfile RUN export DEBIAN...
You can ignore certain commits when using git blame with the --ignore-revs-file option. This is handy to ignore...
The linked article suggests an interesting way to speed up tests of Rails + Postgres apps: PostgreSQL allows the creation of...
In the Gitlab settings the flag Auto-cancel redundant pipelines is enabled by default. This auto-cancels pipelines with jobs...
A general overview about why and how we migrate can be found under Migrating from Elasticsearch to Opensearch
In Capistrano 3, your Capfile requires 'capistrano/rails/migrations', which brings two Capistrano tasks: deploy:migrate and deploy:migrating. The former checks...
When you find similar groups of expect calls in your tests, you can improve readability by extracting the group into...
If you ever need to restore exact records from one database to another, Marshal might come in handy. Marshal.dump is...
While upgrading CarrierWave from version 0.11.x to 3.x, we encountered some very nasty fails. Below are the basic...
On the Rails console, assigning an object to a variable can lead to this strange error (without stacktrace): irb > recipient...
I recently stumbled over a problem that my feature tests broke in CI because of a mismatching chromedriver version.
View specs are a powerful tool to test several rendering paths by their cases instead of using a more costing...
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...
The linked rbenv plugin rbenv-each is very helpful to keep QoL gems up to date that are not part...
Disclaimer This card is a collection of guides and things to have in mind when upgrading to a specific version...
Besides Plotting graphs in Ruby with Gruff, which comes handy for many uses cases, you sometimes might need configuration for...
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...
The git doc states on the difference of these two commands: git-restore[1] is about restoring files in the...
Rails' url_for is useful for generating routes from a Hash, but can lead to an open redirect vulnerability.
An introduction to mangling When you minify ("compress", "optimize") your JavaScript for production, the names of your functions and variables...
In CI test runs I noticed that string sorting order changed after switching from a debian-based PostgreSQL docker image...
Rails offers several methods to manage three types of different cookies along with a session storage for cookies. These...