kv109

encrypted = AES.encrypt("Super secret message", "password")
decrypted = AES.decrypt(encrypted, "gassword") # "p" => "g"
decrypted  #=> Super secret message

kv109

decrypted = AES.decrypt(encrypted, "Some other password") #=> aes.rb:76:in `final': bad decrypt (OpenSSL::Cipher::CipherError)

kv109

require 'aes'

message = "Super secret message"
key = "password"

encrypted = AES.encrypt(message, key)    # RZhMg/RzyTXK4QKOJDhGJg==$BYAvRONIsfKjX+uYiZ8TCsW7C2Ug9fH7cfRG9mbvx9o=
decrypted = AES.decrypt(encrypted, key)  # Super secret message

kv109

require 'aes'

# Obvious part
plain = "Very important message"
full_valid_password = "password"
encrypted = AES.encrypt(plain, full_valid_password)
decrypted = AES.decrypt(encrypted, full_valid_password)
plain == decrypted #=> true, obviously

# Now the sad part

kv109

  # git_remote_name: git remote name associated with your heroku repository (usually "heroku")
    def pending_migrations?(git_remote_name)
      command = "heroku run rails runner \"puts ActiveRecord::Migrator.needs_migration?\" --remote #{git_remote_name}"
      output = `#{command}`
      output_last_line = output.split("\n").last
      raise 'Could not check migration status' unless output_last_line.in? %w(true false)
      output_last_line == 'true'
    end

kv109

I've have ever seen something like this:

Rendered _option.html.erb (1.3ms)
Rendered _option.html.erb (0.9ms)
Rendered _option.html.erb (0.8ms)
Rendered _option.html.erb (0.8ms)
Rendered _option.html.erb (1.2ms)
Rendered _option.html.erb (0.8ms)
Rendered _option.html.erb (0.8ms)

kv109

Go here: http://regexr.com/. Select mulitline mode:

There is already sample text:

Sample text for testing:
abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
0123456789 _+-.,!@#$%^&*();\/|<>"'
12345 -98.7 3.141 .6180 9,000 +42

kv109

Create a method #array_to_hash(array).

Input: Array.

Output: Hash.

Sample usage:

array_to_hash(["name", "Catniss", "age", 354]) #=> {"name"=>"Catniss", "age"=>354}
array_to_hash([1, 2, 3, 4, 5]) #=> {1=>2, 3=>4, 5=>nil}

kv109

xboxdrv --trigger-as-button --wid 0 --led 2 --deadzone 4000 --silent &
sleep 1
xboxdrv --trigger-as-button --wid 1 --led 3 --deadzone 4000 --silent &
sleep 1
xboxdrv --trigger-as-button --wid 2 --led 4 --deadzone 4000 --silent &
sleep 1
xboxdrv --trigger-as-button --wid 3 --led 5 --deadzone 4000 --silent &

kv109

f = open('my_file', 'w')
f.write("writing to file, line 1\n")
f.write("writing to file, line 2\n")
f.close()

f = open('my_file', 'r')
for line in f.readlines():
	print line