Sikachu's Blog

Ignore Git revisions in git blame

GitHub recently added support for ignoring revisions in git blame, which should be useful for when you have commits that change code style.

Confirm current database connection in Rails console

Useful when you want to avoid running a big query on your main writer database.

If you are using Rails muti-database feature, it's quite useful to know if you…

Vim modeline magic

It’s Magic. Modeline Magic.

So I have this ~/.aliases file in my home directory that contain all of my aliases. However, everytime I open the file I have to do :set filetype=bash to make Vim syntax highlight my file … until today!

Writing a pass-through method, Ruby 2.7 edition

You may have written a Ruby method which pass all the arguments to the underlying method, and Ruby 2.7 just introduced a new syntax for it.

fetch vs. [] || for default value in Ruby

TL;DR: Use Hash#fetch

TL;DR: Hash#fetch is now faster than doing [] || in Ruby 3.1+.

So, you should be fine using #fetch with default value anywhere now!

Missing translations keys — Gotta Catch ’Em All

`config.action_view.raise_on_missing_translations = true` actually does not apply to direct `I18n.t` calls. Here’s how to make it do so.

Think twice before using double splat in Ruby

As of Ruby 2.5.1, double splat operator (**options, for example) is still considerably slower than accepting a normal argument and sets a default to empty hash.

A new helper to freeze time in Rails 5.2

This one is a simple quality-of-life improvement.

Expanded rails routes in Rails 6.0

In Rails 6.0, rails routes command will support --expanded (or -x, the shorthand version). This is similar to \x mode in psql where it will print the record in detailed list instead of in a table.

$ rails routes --expanded
--[ Route 1…