Making the rails 3.1. asset pipeline and asset precompiling work in production mode
Recently, we had an interesting lunch-break with the rails 3.1. asset-pipeline in production mode. Daniel Zahn made a blogpost about our journey, precompiling assets, fingerprinting, Haml, Sass & Compass and what he calls "the dark heinous hutch".
Related cards:
Rails asset pipeline: Why relative paths can work in development, but break in production
The problem
When using the asset pipeline your assets (images, javascripts, stylesheets, fonts) live in folders inside app:
app/assets/fonts
app/assets/images
app/assets/javascripts
app/assets/stylesheets
Wit...
How to add esbuild to the rails asset pipeline
This are the steps I needed to do to add esbuild to an application that used the vanilla rails asset pipeline with sprockets before.
Preparations
- update Sprockets to version 4
- add a
.nvmrcwith your preferred node version (and instal...
Managing vendor libraries with the Rails asset pipeline
The benefit of the Rails asset pipeline is that it compiles your stylesheets and javascripts to a single file, respectively. However, the consequences are startling if you don't understand them. Among others, the raw asset pipeli...
iPhone on Rails and ObjectiveResource; Making communication between the iPhone and a Rails web-service pain-free.
ObjectiveResource is an Objective-C port of Ruby on Rails' ActiveResource. It provides a way to serialize objects to and from Rails' standard RESTful web-services (via XML or JSON) and handles much of the complexity involved with invoking web-serv...
Migration from the Asset Pipeline to Webpacker
This is a short overview of things that are required to upgrade a project from the Asset Pipeline to Webpacker. Expect this upgrade to take a few days even the diff is quite small afterwards.
Preparations
1. Find all libraries that are bund...
Rails asset pipeline: Using ESNext without a transpiler
If your app does not need to support IE11, you can use most ES6 features without a build step. Just deliver your plain JavaScript without transpilation through Babel or TypeScript, and modern browsers will run them natively.
Features supported by...
Security issues with hash conditions in Rails 2 and Rails 3
Find conditions for scopes can be given either as an array (:conditions => ['state = ?', 'draft']) or a hash (:conditions => { 'state' => 'draft' }). The later is nicer to read, but has horrible security implications in some versions of Ru...
Rails, callbacks, workers, and the race you never expected to lose « Logical Friday
How delayed jobs can make your after_save callbacks execute before the record is saved.
Rails Asset Pipeline: Building an Icon Font from SVG Files
Webpacker can automatically create an icon font from SVG files, which is really handy. When you're using the asset pipeline, you can still have an icon font from SVG files, but it requires some manual work.
Creating the icon...
Asset pipeline may break Javascript for IE (but only on production)
If some of your JavaScripts fail on Internet Explorer, but only in staging or production environments, chances are that JavaScript compression is the culprit.
By default, Rails 3.2 compresses JavaScript with UglifyJS. I have seen a few cases wher...