Ten Bitcomb Ravenstine

Ruby Snippets

Sometimes, you don't need a gem for it.

This is a list of useful "snippets" for Ruby that are small but provide a lot of power. Copy them, modify them, and make them your own!

Snippets

Auto-assign Arguments to Instance Variables

Ravenstine's Bullshit Google Results Blocklist

This is my list of domains that I block from Google search results using the Personal Blocklist plugin for Google Chrome.

Criteria

Here is the list of reasons why I block these domains:

Spreads misinformation or misleads the reader
Has a social, religious, or political bias
Uses clickbait headlines

I had a case where I wanted components to know if the current route has changed so behavior within their scope could be triggered. This was very hard to do, but this is what I came up with and it seems to work pretty well:

  didInsertElement() {
    Ember.run.scheduleOnce('afterRender', this, function() {
      let router = this.container.lookup('router:main');
      router.addObserver('currentPath', function(){
        // ... do something here
      });
 });

Deployment

Prerequisites:

Docker w/ running docker-machine
brew install awscli

Instructions

If you haven't already, run aws configure and enter your access ID and access secret, a long with us-west-1 as the region. Then initialize your environment by running eval $(docker-machine env default) and eval $(aws ecr get-login --region us-west-1). It may be wise to place those last two commands in your ~/.bash_profile if you are going to be interacting with Docker and Amazon ECS a lot.

	class AddContentToArticles < ActiveRecord::Migration
	def change
	add_column :articles, :content, :text
	end
	end

	var module = module \|\| ({}).__defineSetter_('exports', function(m){window = window \|\| {}; window.ThisModule = m; return m;})

	(function(){
	module.exports = "hello world";
	})(module)

	<rss version="2.0"
	xmlns:dc="http://purl.org/dc/element/1.1/"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:wfw="http://wellformedweb.org/CommentAPI/">
	<channel>
	<title>Instant Articles \| 89.3 KPCC</title>
	<link>http://www.scpr.org</link>
	<description>Instant Articles from KPCC's reporters, bloggers and shows.</description>
	<item>
	<title>Yahoo's Burbank layoffs, closure consolidates its operations at Silicon Beach</title>

	var self = this;
	var include = function(){
	var len = Object.keys(arguments).length;
	var code = '';
	var i = 0;
	while(i < len){
	var file = arguments[i];
	code += (fs.readFileSync(embeditorRoot + "/" + file + '.js', "utf8") + "\n");
	i++;
	}

	FROM ubuntu:16.04

	# Install dependencies
	RUN apt-get update --yes && apt-get upgrade --yes
	RUN apt-get install git nodejs npm \
	libcairo2-dev libjpeg8-dev libpango1.0-dev libgif-dev build-essential g++ \
	ffmpeg \
	libgroove-dev zlib1g-dev libpng-dev \
	redis-server --yes

	"https://twitter.com/eh1030/status/12345/photo/1".match(/^(?<url>https?:\/\/twitter\.com\/[-a-zA-Z0-9+&@#%?=~_\|!:,.;]+\/status(es){0,1}\/(?<tweetId>\d+)\/{0,1})/)
	# => #<MatchData "https://twitter.com/eh1030/status/12345/" url:"https://twitter.com/eh1030/status/12345/" tweetId:"12345">