J3RN

****** Process <0.91.0>    -- 100.00 % of profiled time *** 
FUNCTION                              CALLS        %   TIME  [uS / CALLS]
--------                              -----  -------   ----  [----------]
erl_eval:exprs/5                          1     0.00      0  [      0.00]
erl_eval:ret_expr/3                       2     0.00      0  [      0.00]
erl_eval:eval_fun/2                       1     0.00      0  [      0.00]
erl_eval:expr_list/4                      1     0.00      0  [      0.00]
erl_eval:guard/4                          1     0.00      0  [      0.00]
erl_eval:guard0/4                         1     0.00      0  [      0.00]
erl_eval:match_list/4                     1     0.00      0  [      0.00]

J3RN

sample = Enum.map(1..1000, &{&1, &1}) |> Map.new()

Benchee.run(%{
  "maps:map" => fn -> :maps.map(fn _k, v -> v * 2 end, sample) end,
  "Map.new" => fn -> Map.new(sample, fn {k, v} -> {k, v * 2} end) end,
  "for" => fn -> for {k, v} <- sample, into: %{}, do: {k, v * 2} end
})

J3RN

pattern   = %{foo: "bar", bar: %{baz: "qux"}}
good_data = %{foo: "bar", bar: %{baz: "qux", qux: "asdf"}}
bad_data  = %{foo: "baz", bar: %{baz: "asdf"}}

### This is perfect
match?(%{foo: "bar", bar: %{baz: "qux"}}, good_data)
#=> true

match?(%{foo: "bar", bar: %{baz: "qux"}}, bad_data)
#=> false

J3RN

#!/bin/bash

# Usage: ./backup.sh <path to directory to archive> <GPG user>
tar -C $1 -c . | gpg --recipient $2 -e > $(date -Iminutes | tr -d ':').tar.gz.gpg

J3RN

# This script has been tested with zsh 5.2 on macOS 10.12.3 with BSD sed and find.
# It may work under other conditions, but likely does not.

# old2new, the Ruby hash syntax updating function
# Takes the given files and replaces all instances of `:key => value` with the equivalent `key: value`
# Usage: old2new <path>
# NOTE: <path> can be a file or directory
function old2new() {
  find $argv \( -name "*.haml" -or -name "*.rb" -or -name "*.erb" \) -exec sed -E -i '' 's/:([A-z]+) =>/\1:/g' '{}' \;
}

J3RN

# USAGE: ruby proc_fix.rb <one or more space-separated model names without path or extension>
# e.g. ruby proc_fix.rb activity
# e.g. ruby proc_fix.rb accessory bill_charge
# **Must be run in Rail's root**
# What it do: Converts all "Proc.new { |foo|" to "(foo) -> {"

before = /scope(.*)Proc\.new\s*\{\s*\|(.*)\|/
after  = 'scope\1->(\2) {'

ARGV.each do |modelname|

J3RN

class Parser
  ENCLOSURES = {
    '"' => '"',
    '(' => ')',
    '{' => '}',
    '[' => ']'
  }

  def initialize
    @i = 0

J3RN

Keybase proof

I hereby claim:

• I am j3rn on github.
• I am j3rn (https://keybase.io/j3rn) on keybase.
• I have a public key ASBhifQXfnaOXVcs8wkePXEhYqHf5sX7-XkL_U5IX_CALwo

To claim this, I am signing this object:

J3RN

#!/bin/sh

GIT_REPO=$HOME/portfolio.git
TMP_GIT_CLONE=$HOME/tmp_portfolio
PUBLIC_WWW=$HOME/www

touch $HOME/deploy
git clone $GIT_REPO $TMP_GIT_CLONE
cp -rv $TMP_GIT_CLONE/* $PUBLIC_WWW
rm -rf $TMP_GIT_CLONE

J3RN

#!/usr/bin/env python

import RPi.GPIO as GPIO
from time import *

GPIO.setmode(GPIO.BCM)
GPIO.setup(18, GPIO.OUT)
GPIO.setup(12, GPIO.OUT)
GPIO.setup(13, GPIO.OUT)