lelandbatey

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

dhh

class ActionDispatch::Routing::Mapper
  def draw(routes_name)
    instance_eval(File.read(Rails.root.join("config/routes/#{routes_name}.rb")))
  end
end

BCX::Application.routes.draw do
  draw :api
  draw :account
  draw :session

schickling

require "active_record"

namespace :db do

  db_config       = YAML::load(File.open('config/database.yml'))
  db_config_admin = db_config.merge({'database' => 'postgres', 'schema_search_path' => 'public'})

  desc "Create the database"
  task :create do
    ActiveRecord::Base.establish_connection(db_config_admin)

trcarden

# SSL self signed localhost for rails start to finish, no red warnings. 

# 1) Create your private key (any password will do, we remove it below)

$ openssl genrsa -des3 -out server.orig.key 2048


# 2) Remove the password

$ openssl rsa -in server.orig.key -out server.key

notozeki

CRYSTAL = crystal
UNAME = "$(shell uname -ms)"
LIBRARY_PATH = $(shell brew --prefix crystal-lang)/embedded/lib
LIBS = -levent -lpcl -lpcre -lgc -lpthread
LDFLAGS = -Wl,-undefined,dynamic_lookup

TARGET = crystal_example_ext.bundle

$(TARGET): crystal_example_ext.o
	$(CC) -bundle -L$(LIBRARY_PATH) -o $@ $^ $(LIBS) $(LDFLAGS)

netmute

Game of Life

An implementation of Conway's Game of Life in 140 characters of Ruby.

Author

Created by Simon Ernst (@sier).

drogus

require 'bundler/setup'

require 'active_record'

include ActiveRecord::Tasks

db_dir = File.expand_path('../db', __FILE__)
config_dir = File.expand_path('../config', __FILE__)

DatabaseTasks.env = ENV['ENV'] || 'development'

serradura

class Mecha
  private attr_accessor(:states_map, :callbacks, :transitions, :current_state)

  public :transitions, :current_state

  def initialize(initial_state:, transitions:)
    self.states_map = transitions.parameters.select { |(type, _)| type == :keyreq }.to_h { [_2, _2] }

    self.callbacks = Hash.new { |hash, key| hash[key] = [] }
    self.transitions = transitions.call(**states_map).transform_values(&:freeze).freeze

tomstuart

>> IF = -> b { b }
=> #<Proc:0x007fb4e4049cc8 (lambda)>

>> LEFT = -> p { p[-> x { -> y { x } } ] }
=> #<Proc:0x007fb4e403d680 (lambda)>

>> RIGHT = -> p { p[-> x { -> y { y } } ] }
=> #<Proc:0x007fb4e4028ff0 (lambda)>

>> IS_EMPTY = LEFT

masonforest

Installing a Gem on Heroku from a Private GitHub Repo

Sometimes you want to use a gem on Heroku that is in a private repository on GitHub.

Using git over http you can authenticate to GitHub using basic authentication. However, we don't want to embed usernames and passwords in Gemfiles. Instead, we can use authentication tokens.

1. Get an OAuth Token from GitHub

---

First you will need to get an OAuth Token from GitHub using your own username and "note"