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eveevans / ANSI.md
Created November 21, 2024 20:30 — forked from fnky/ANSI.md
ANSI Escape Codes

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

  • Ctrl-Key: ^[
  • Octal: \033
  • Unicode: \u001b
  • Hexadecimal: \x1B
  • Decimal: 27
@eveevans
eveevans / rspec_model_testing_template.rb
Created September 28, 2019 05:56 — forked from SabretWoW/rspec_model_testing_template.rb
Rails Rspec model testing skeleton & cheat sheet using rspec-rails, shoulda-matchers, shoulda-callbacks, and factory_girl_rails. Pretty much a brain dump of examples of what you can (should?) test in a model. Pick & choose what you like, and please let me know if there are any errors or new/changed features out there. Reddit comment thread: http…
# This is a skeleton for testing models including examples of validations, callbacks,
# scopes, instance & class methods, associations, and more.
# Pick and choose what you want, as all models don't NEED to be tested at this depth.
#
# I'm always eager to hear new tips & suggestions as I'm still new to testing,
# so if you have any, please share!
#
# @kyletcarlson
#
# This skeleton also assumes you're using the following gems:
@eveevans
eveevans / carrierwave.rb
Created November 29, 2018 00:18 — forked from iqbalhasnan/carrierwave.rb
carrierwave mini_magick image processing - quality, strip, exif rotation, gaussian blur, interlace
#config/initializers/carrierwave.rb
module CarrierWave
module MiniMagick
# Rotates the image based on the EXIF Orientation
def exif_rotation
manipulate! do |img|
img.auto_orient
img = yield(img) if block_given?
img
end
@eveevans
eveevans / encrypt_decrypt.rb
Created July 22, 2017 00:20 — forked from wteuber/encrypt_decrypt.rb
Simply encrypt and decrypt Strings in ruby.
require 'openssl'
class String
def encrypt(key)
cipher = OpenSSL::Cipher::Cipher.new('DES-EDE3-CBC').encrypt
cipher.key = Digest::SHA1.hexdigest key
s = cipher.update(self) + cipher.final
s.unpack('H*')[0].upcase
end
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Sharing files using netcat

The receiver

nc -l 5566 > data-dump.sql

Listen on port 5566 and redirect output to data-dump.sql

The sender

/**
* supplant() does variable substitution on the string. It scans through the string looking for
* expressions enclosed in { } braces. If an expression is found, use it as a key on the object,
* and if the key has a string value or number value, it is substituted for the bracket expression
* and it repeats.
*
* Written by Douglas Crockford
* http://www.crockford.com/
*/
String.prototype.supplant = function (o) {
@eveevans
eveevans / README.md
Created September 12, 2013 18:38 — forked from netmute/README.md

Game of Life

An implementation of Conway's Game of Life in 140 characters of Ruby.

Author

Created by Simon Ernst (@sier).