alexanderadam

EasterHegg 18 Workshop: Smart Contracts on Ethereum

Requirements:

• Chrome/ium or Firefox
• Metamask

Coding your first smart contract!

a. Setting up Metamask

alexanderadam

#!/bin/sh
# put this file in /etc/network/if-up.d/
if iwconfig wlp4s0 | grep -c "ESSID:\"WIFIonICE\""
then
    curl -s "https://www.ombord.info/hotspot/hotspot.cgi?connect=&method=login&realm=db_advanced_wifi"
fi

alexanderadam

// Sometimes it's necessary to do a bit of clean-up
Array.prototype.forEach.call(document.querySelectorAll('.js-comment-delete button'), function(el, i) {
  el.removeAttribute('data-confirm');
  el.click();
});

alexanderadam

#!/bin/bash

# get latest docker compose released tag
COMPOSE_VERSION=$(curl -s https://api.github.com/repos/docker/compose/releases/latest | grep 'tag_name' | cut -d\" -f4)

# Install docker-compose
sh -c "curl -L https://github.com/docker/compose/releases/download/${COMPOSE_VERSION}/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose"
chmod +x /usr/local/bin/docker-compose
sh -c "curl -L https://raw.githubusercontent.com/docker/compose/${COMPOSE_VERSION}/contrib/completion/bash/docker-compose > /etc/bash_completion.d/docker-compose"

alexanderadam

#!/usr/bin/env sh

# Download lists, unpack and filter, write to stdout
curl -s https://www.iblocklist.com/lists.php \
  | sed -n "s/.*value='\(http:.*=bt_.*\)'.*/\1/p" \
  | xargs wget -O - \
  | gunzip \
  | egrep -v '^#'

alexanderadam

Keybase proof

I hereby claim:

• I am alexanderadam on github.
• I am alexanderadam (https://keybase.io/alexanderadam) on keybase.
• I have a public key whose fingerprint is B9B4 7015 798D 923C B71D 9A27 E996 062F A880 FCC0

To claim this, I am signing this object:

alexanderadam

require "json"
require "yaml"
require "secure_random"

class SerializableKlass
  YAML.mapping({
    bool:  { type: Bool,    nilable: true},
    float: { type: Float64, nilable: true},
    int:   { type: Int32,   nilable: true},
    str:   { type: String,  nilable: true}

alexanderadam

# Generates ctags for a Crystal source
# Based on asterite script https://github.com/crystal-lang/crystal/issues/577#issuecomment-97054600
# This works on Crystal 0.17.4 [9d258f6] (2016-06-05)
#
require "compiler/crystal/**"
require "option_parser"

include Crystal

class CTagsVisitor < Visitor

alexanderadam

!!! Strict
%html{:xmlns => 'http://www.w3.org/1999/xhtml'}
  %head
    %meta{'http-equip' => 'Content-Type', :content => 'text/html; charset=utf-8'}
    %meta{:name => 'viewport', :content => 'widt=device-width, initial-scale=1.0'}
    %title= subject
    :css
      /* Based on The MailChimp Reset INLINE: Yes. */
      /* Client-specific Styles */
      #outlook a {padding:0;} /* Force Outlook to provide a "view in browser" menu link. */

alexanderadam

# lib/tasks/db.rake
namespace :db do
  desc 'Dumps the database to db/APP_NAME.dump'
  task dump: :environment do
    cmd = nil
    with_config do |app, host, db, user|
      cmd = "pg_dump #{pg_options(host, user)} --verbose --clean --no-owner --no-acl --format=c #{db} > #{Rails.root}/db/#{app}.dump"
    end
    puts cmd
    exec cmd