scmx

# Related article
# http://robots.thoughtbot.com/accepts-nested-attributes-for-with-has-many-through

# Pluck ids
arr = CompanyEmployment.pluck(:company_id, :company_user_id)
#=> [[1,1], [1,2], [2,1], [2,1]]

# Select duplicates http://stackoverflow.com/a/8922408/2037928
dups = arr.select {|e| arr.rindex(e) != arr.index(e) }.uniq
#=> [[2,1]]

scmx

How to fix a frozen MacBook Pro TouchBar

tl;dr killall ControlStrip

After having used a MacBook Pro with a TouchBar for a few months, I've experienced a few times that the TouchBar can sometimes hang up so that none of the buttons work. I don't really use it that much, so I can just continue working, but it's annoying to not be able to change screen brightness etc.

The last few times I've just resorted to rebooting my computer after failing to google how to restart only the touchbar.

But today it was easier too google it. Cnet has an article that mentions various ways to fix it. For me it was enough to restart the ControlStrip, the rightmost part of the TouchBar.

scmx

Here are some tricks you can use to be able to stay on the home row (asdfghjkl etc) when you're in a terminal or in vim.

Terminal

• <Ctrl>+l Clear the terminal
• <Ctrl>+a go to beginning of line
• <Ctrl>+e go to end of line
• <Ctrl>+p instead of <Up>, to see previous command
• <Ctrl>+n instead of <Down>, to see next command
• <Ctrl>+k + <Ctrl>+u Cut current command
• +y Paste command

scmx

#!/usr/bin/env ruby

set :tmux, true

before do
  %x(~/bin/set-skype-status DND)
  %x(say -v albert 'pomodoro started')
end

after do

scmx

Keybase proof

I hereby claim:

• I am scmx on github.
• I am albertarv (https://keybase.io/albertarv) on keybase.
• I have a public key ASDpTXwwbwneSxsaoy4j2gb7eo0GyQI_3UGCJrYCIqx7Igo

To claim this, I am signing this object:

scmx

Mac OS Screenshot with TouchBar

Many know that there are some keyboard bindings on Mac OS for taking screen shots

• <Cmd> + <Shift> + 3 Full screenshot
• <Cmd> + <Shift> + 4 Choose rectangle of what to screenshot
• <Cmd> + <Shift> + 4 + <Space> Choose an app to screenshot

But for those with a Macbook Pro with a Touch Bar there is also

• <Cmd> + <Shift> + 6 Screenshot of TouchBar

scmx

Bash prompt with Git and autocompletion

First install HomeBrew and then use brew to install the bash-completion package

brew install bash-completion

After that you can open up your ~/.bashrc file and add the following:

# Load git prompt that display current branch etc

scmx

The text cursor in Hyper term can be very hard to see, so I looked into changing it to white or similar for better visibility. Here's a related issue about this vercel/hyper#1045

The currently proposed solutions didn't entirely work for me until I used css: instead of termCSS:.

~/.hyper.js

css: `
  .xterm {
 cursor: default;

scmx

If you are using asdf to install node versions like me, and also sometimes use yarn, you might be tempted to just run brew install yarn, but that will give you trouble when it brings down the node package as well.

See yarn installation instructions that suggests brew install yarn --without-node instead.

• https://github.com/asdf-vm/asdf-nodejs
• https://yarnpkg.com/en/docs/install#mac-stable

scmx

  defmodule Marbles do
    def new do
      %{size: 0, current: 0, counter: 0}
    end

    def to_list(state) do
      []
      |> do_to_list(state, state.current, state.current)
      |> Enum.reverse
    end