shime

Qlobe

Qlobe is a fascinating example of quine in Ruby, submitted by a member of the Ruby core team - Yusuke Endoh.

Programs that output changed executable versions of themselves while managing to spin the globe and still remaining executable are cool, right?

To experience its magic, run the following

curl -fSSl https://gist.githubusercontent.com/shime/f0ebe84ca42c33b51d42/raw/5e74315dc6b6fe572f8a457536ad7eb17ad3f1e4/qlobe.rb > qlobe.rb; while true; do ruby qlobe.rb | tee temp.rb; sleep 1; mv -f temp.rb qlobe.rb; done

ismailakbudak

# Deploy group
deploy_group=deploy
# Deploy user
deploy_user=deploy
# Github usernames for access with ssh to deploy user
usernames=(tayfunoziserikan ismailakbudak)

# Check user is exist
id -u $deploy_user &> /dev/null
if [ $? -ne 0 ]

ismailakbudak

## Run this command with deploy user
# define user home path
user_path=/home/deploy
## Fancy echo
fancy_echo() {
  printf "\n%b\n" "$1"
}
 
fancy_echo "Installing rbenv..."
git clone git://github.com/sstephenson/rbenv.git $user_path/.rbenv

ismailakbudak

## Run this script with root user
# After installation check this
# vi /etc/ssh/sshd_config  # Change ssh post
# vi /etc/environment      # Write below locales
#   LANGUAGE="en_US.utf8"
#   LC_ALL="en_US.utf8"
# dpkg-reconfigure locales # Configure locales 

## Fancy echo
fancy_echo() {

bonkydog

# Put this in your Rails app's  lib/tasks directory
namespace :db do
  desc "Fix 'ERROR:  must be owner of extension plpgsql' complaints from Postgresql"
  task :fix_psql_dump do |task|
    filename = ENV['DB_STRUCTURE'] || File.join(ActiveRecord::Tasks::DatabaseTasks.db_dir, "structure.sql")
    sql = File.read(filename)
    sql.sub!(/(CREATE EXTENSION IF NOT EXISTS plpgsql)/, '-- \1')
    sql.sub!(/(COMMENT ON EXTENSION plpgsql)/, '-- \1')
    File.open(filename, 'w') do |f|
      f.write(sql)

syafiqfaiz

1. Change your database RDS instance security group to allow your machine to access it.
   • Add your ip to the security group to acces the instance via Postgres.
2. Make a copy of the database using pg_dump
   • $ pg_dump -h <public dns> -U <my username> -f <name of dump file .sql> <name of my database>
   • you will be asked for postgressql password.
   • a dump file(.sql) will be created
3. Restore that dump file to your local database.
   • but you might need to drop the database and create it first
   • $ psql -U <postgresql username> -d <database name> -f <dump file that you want to restore>

• the database is restored