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Comparing Rails' flash hashes will not respect their internal lists of used entries
Rails flashes (FlashHash) track a list of used keys, which is not respected when comparing flash hashes.
This does not concern you under most circumstances.
Basics
When ActionController picks up a flash object, it will call the #sweep m...
Migrate searchkick from Elasticsearch client to Opensearch client without Downtime
General
A general overview about why and how we migrate can be found under Migrating from Elasticsearch to Opensearch
This card deals with specifics concerning the use of searchkick.
Step 1: Make Opensearch available for ...
Chart.js - a promising JavaScript charting library with MIT-license
Chart.js seems to be a good alternative to Google's Chart API and other commercial chart drawing libraries.
- good looking charts
- canvas based (means less memory consumptive, but no interactivity out of the box)
- hig...
OpenAI TTS: How to generate audio samples with more than 4096 characters
OpenAI is currently limiting the Audio generating API endpoint to text bodies with a maximum of 4096 characters.
You can work around that limit by splitting the text into smaller fragments and stitch together the resulting mp3 files with a CLI too...
scribd's flash_heed at master - GitHub
Fixes all Flash elements on a page so that they heed DOM stacking order
Running external commands with Open3
There are various ways to run external commands from within Ruby, but the most powerful ones are Open3.capture3 and Open3.popen3. Since those can do almost everything you would possibly need in a clean way, I prefer to simply...
Linux: Open a file with the default application
If you are on a Linux shell and want to open a file with whatever default application is configured for that type, this often works:
xdg-open Quote.odt
xdg-open invoice.pdf
xdg-open index.html
Pro Tip
Make an alias so you ...
Chartkick
Create beautiful Javascript charts with one line of Ruby.
Promising chart library for easily rendering charts with Google Charts.
This seems to not submit your data points to Google.
Opening Rubymine projects from the command line
To activate the shell command, go to Tools > Create Command-line Launcher and confirm.
Now you have mine as bash command. Run this to open a project in RubyMine:
mine path/to/my_project
Booting Rubymine
The mine script will a...
Advanced plotting in Ruby with Gnuplot
Besides Plotting graphs in Ruby with Gruff, which comes handy for many uses cases, you sometimes might need configuration for more advanced plots, e.g. for academic conc...