henrik

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

henrik

module ClimateControlHelpers
  # Usage:
  #
  #    describe Foo do
  #      stub_envs(
  #        FOO: "bar",
  #      )
  #
  #      it "uses the ENVs"
  #    end

henrik

#!/usr/bin/env osascript

# Required parameters:
# @raycast.schemaVersion 1
# @raycast.title Send IM
# @raycast.mode silent

# Optional parameters:
# @raycast.icon 💬
# @raycast.author Henrik Nyh

henrik

def stub_env(key, value)
  is_set_up_flag = "__stub_env_is_set_up"

  unless ENV[is_set_up_flag]
    allow(ENV).to receive(:[]).and_call_original
    allow(ENV).to receive(:fetch).and_call_original

    allow(ENV).to receive(:[]).with(is_set_up_flag).and_return(true)
  end

henrik

As determined by https://github.com/breunigs/bravia-auth-and-remote/.

Specifically, I followed the setup instructions in its README and then ran

curl --silent -XPOST http://192.168.0.131/sony/system -d '{"method":"getRemoteControllerInfo","params":[],"id":10,"version":"1.0"}' | pbcopy

(with the IP of the TV on my network).

I then ran its output through an online JSON prettifier.

henrik

Rails.stub!(:env).and_return(ActiveSupport::StringInquirer.new("production"))

henrik

Get exchange rate as JSONP via YQL.

YQL Console: http://developer.yahoo.com/yql/console

Query (USD to SEK): select rate,name from csv where url='http://download.finance.yahoo.com/d/quotes?s=USDSEK%3DX&f=l1n' and columns='rate,name'

Example code:

<script type="text/javascript">

henrik

# Recursively diff two hashes, showing only the differing values.
# By Henrik Nyh <http://henrik.nyh.se> 2009-07-14 under the MIT license.
#
# Example:
#
# a = {
#   "same"   => "same",
#   "diff"   => "a",
#   "only a" => "a",
#   "nest" => {

henrik

Install ImageMagick for image conversion:

brew install imagemagick

Install tesseract for OCR:

brew install tesseract --all-languages

Or install without --all-languages and install them manually as needed.

henrik

class Luhn
  def self.checksum(number)
    digits = number.to_s.reverse.scan(/\d/).map { |x| x.to_i }
    digits = digits.each_with_index.map { |d, i|
      d *= 2 if i.even?
      d > 9 ? d - 9 : d
    }
    sum = digits.inject(0) { |m, x| m + x }
    mod = 10 - sum % 10
    mod==10 ? 0 : mod