Skip to content

Instantly share code, notes, and snippets.

@kojix2
kojix2 / catgpt.rb
Created March 2, 2023 03:08
CatGPT - Glimmer DSL LibUI
require 'glimmer-dsl-libui'
require 'ruby/openai'
class ChatGPT
class Message < Struct.new(:role, :content)
def role_color
[role, color]
end
def content_color
@brenogazzola
brenogazzola / migrate_im_to_vips.md
Last active March 17, 2024 21:56
Steps to migrate ImageMagick to Libvips

For apps built before the image_processing gem became the default, the migration will involve two steps:

  1. Migrating to the image processing syntax while still using ImageMagick;
  2. Switching to Vips and updating the compression options;

Migrate to the image processing syntax

Before changing from ImageMagick to Vips, it's better to first test the new syntax and ensure everything is still working.

1. Move everything that has to do with compression to a saver hash:

variant(format: :jpg, strip: true, quality: 80)
@herko
herko / _seo.html.erb
Created February 1, 2021 12:39
Managing SEO tags in rails application
<%# app/views/layouts/shared/_seo.html.erb %>
<%
title = construct_title(yield(:title))
description = yield(:description)
og_image = yield(:og_image)
url = yield(:url).presence || request.original_url
%>
<title><%= title %></title>
<meta property="og:title" content="<%= title %>">
@herko
herko / application_form_builder.rb
Created December 14, 2020 19:56
Using custom form builder in rails.
# app/builders/application_form_builder.rb
class ApplicationFormBuilder < ActionView::Helpers::FormBuilder
def form_group(method, options = {}, &block)
content = @template.capture(&block)
content += help_block_with_errors(method) if object.errors[method].any?
options[:class] ||= ""
options[:class] += " form-group"
@template.content_tag :div, content, options
@dhh
dhh / Gemfile
Created June 24, 2020 22:23
HEY's Gemfile
ruby '2.7.1'
gem 'rails', github: 'rails/rails'
gem 'tzinfo-data', '>= 1.2016.7' # Don't rely on OSX/Linux timezone data
# Action Text
gem 'actiontext', github: 'basecamp/actiontext', ref: 'okra'
gem 'okra', github: 'basecamp/okra'
# Drivers
@mozeago
mozeago / heroku-remote.md
Created May 27, 2020 12:41 — forked from randallreedjr/heroku-remote.md
Add a Heroku remote to an existing git repo

Working with git remotes on Heroku

Generally, you will add a git remote for your Heroku app during the Heroku app creation process, i.e. heroku create. However, if you are working on an existing app and want to add git remotes to enable manual deploys, the following commands may be useful.

Adding a new remote

Add a remote for your Staging app and deploy

Note that on Heroku, you must always use master as the destination branch on the remote. If you want to deploy a different branch, you can use the syntax local_branch:destination_branch seen below (in this example, we push the local staging branch to the master branch on heroku.

$ git remote add staging https://git.heroku.com/staging-app.git
@castwide
castwide / rails.rb
Last active April 27, 2024 08:54
Enhance Rails Intellisense in Solargraph
# The following comments fill some of the gaps in Solargraph's understanding of
# Rails apps. Since they're all in YARD, they get mapped in Solargraph but
# ignored at runtime.
#
# You can put this file anywhere in the project, as long as it gets included in
# the workspace maps. It's recommended that you keep it in a standalone file
# instead of pasting it into an existing one.
#
# @!parse
# class ActionController::Base
@siklodi-mariusz
siklodi-mariusz / Dockerfile
Created January 30, 2018 19:40
Dockerfile example for Ruby on Rails running on Alpine Linux
FROM ruby:2.4-alpine3.7
# Install dependencies:
# - build-base: To ensure certain gems can be compiled
# - nodejs: Compile assets
# - postgresql-dev postgresql-client: Communicate with postgres through the postgres gem
# - libxslt-dev libxml2-dev: Nokogiri native dependencies
# - imagemagick: for image processing
RUN apk --update add build-base nodejs tzdata postgresql-dev postgresql-client libxslt-dev libxml2-dev imagemagick
@bbonamin
bbonamin / Brewfile
Last active March 19, 2024 14:54
Capybara Selenium Webdriver: Headless Chrome (with file downloads!) & Headless Firefox
tap "caskroom/cask"
cask "google-chrome"
cask "firefox"
brew "chromedriver"
brew "geckodriver"
@zulhfreelancer
zulhfreelancer / readline_bundle_image_not_found.md
Last active November 3, 2021 20:50
How to fix 'readline.bundle image not found' problem?

If you get error like this:

Running via Spring preloader in process 7662
/Users/zulh/.rvm/gems/ruby-2.3.1@useradmin/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `require': dlopen(/Users/zulh/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/x86_64-darwin15/readline.bundle, 9): Library not loaded: /usr/local/opt/readline/lib/libreadline.6.dylib (LoadError)
  Referenced from: /Users/zulh/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/x86_64-darwin15/readline.bundle
  Reason: image not found - /Users/zulh/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/x86_64-darwin15/readline.bundle
	from /Users/zulh/.rvm/gems/ruby-2.3.1@useradmin/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `block in require'
	from /Users/zulh/.rvm/gems/ruby-2.3.1@useradmin/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:240:in `load_dependency'
	from /Users/zulh/.rvm/gems/ruby-2.3.1@useradmin/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `require'