JadedEvan

#!usr/bin/env ruby

# This script takes a list of filenames from a given file and copies
# each of those files from one S3 bucket to another using the s3mcd library.
# Inputfile should have each filename termination by a newline character.

file, from, to = ARGV[0], ARGV[1], ARGV[2]

if file.nil? || from.nil? || to.nil?
  puts "Invalid arguements. Should be filename from-s3-bucket to-s3-bucket"

JadedEvan

`convert -resize x#{thisSize.to_i*2} -resize 50% -gravity center -crop #{thisSize}x#{thisSize}+0+0 +repage  #{amazon_file[:tempfile].path} #{tempfile_new.path}`

JadedEvan

function charsRemaining(evt, counterID, max) {
	var chars = evt.getValue();
	if (chars.length == 1 && chars[0] == '') { chars = []; }
	var remaining = max - chars.length;
	var counter = document.getElementById(counterID);
	if (remaining >= 0) {
		if(counter) counter.setTextValue(remaining + ' characters remaining');
	}
	else {
		evt.setValue(evt.getValue().substr(0, max));

JadedEvan

class Numeric
  def ordinal
    self.to_s + ( (10...20).include?(self) ? 'th' : %w{ th st nd rd th th th th th th }[self % 10] )
  end
end

JadedEvan

Buffer Settings

:set scrolloffset=30
:set scrolloffset=999
:set so=0

Sets the offset when scrolling through a document. A value of 30 will keep a marginal amount of space while scrolling, a value of 999 will keep the cursor centered in the screen, a value of 0 restores Vim's default behavior. All of the above can be added to your ~/.vimrc file to set editor defaults. Vim wikia - scroll centering

Additional buffer settings

JadedEvan

find commands

find . -regextype posix-egrep -regex ".*(rb|js)$"

Find all files ending in .rb or .js.

find . -name "*js" -o -name "*rb"

Same as above, not using regular expressions.

JadedEvan

Git Notes

Merge Two Branches in seperate repos

I have two independent repositories (A and B) and would like to merge one repo. (B) into another one (A) with keeping the whole history of both. What do to?

% cd projectA
% git remote add test ../path/to/other/repo && git fetch test

Adds a new branch called test which pulls in ALL branches from the /other/repo. git fetch test pulls code for all branches

JadedEvan

Self Signed Certificate

Generate a new RSA key of 4096 bits. Adding the -des3 (or any other cipher) requires that the key have a password issued:

openssl genrsa -out server.key 2048

Generate a new CSR (Certificate Signed Request)

openssl req -new -key server.key -out server.csr

JadedEvan

Ruby Design Patterns - Methods over Attributes

Overview

The objective of this article is to highlight the subtle differences between using class attributes and class methods in Ruby. Both offer a valid way to manipulate the state of an instance of a class. Things can get increasingly complex, hard to test and hard to maintain as more instance variables are introduced. Beginner and intermediate Rubyists often miss this subtle but important point which can introduce bugs that may be hard to fix in their native habitat.

The reasons I prefer to use methods over instance variables:

• Increases predictability of method calls
• Increases predictability when testing

JadedEvan

{
  "AWSTemplateFormatVersion" : "2010-09-09",
  "Description": "Create EC2 instance to run a GNIP Kinesis connector. Creates CloudWatch alarms when 85% stream capacity reached.",
  "Parameters" : {
    "Environment" : {
      "Type": "String",
      "Description": "Environment in which to run",
      "AllowedValues": ["production", "development"]
    },
    "InstanceTerminationProtection": {