Rake task for managing Redis, including connecting via CLI in current enviro.

redis.rake

require 'open3'

namespace :redis do
  task :cli do
    redis_config = File.expand_path('../../../config/redis.yml', __FILE__)
    config_data = YAML.load_file(redis_config)
    uri = URI.parse(config_data[ENV['RAILS_ENV'] || 'development'])

    cli = File.expand_path('/path/to/redis-cli', __FILE__)

    args = ["-h #{uri.host}", "-p #{uri.port}"]
    args << "-a #{uri.password}" if uri.password

    cmd = "#{cli} #{args.join(' ')}"
    pid = fork { exec(cmd) }

    Process.waitpid(pid)
  end

  task :flush_all => :environment do
    print "Are you sure you want to do this? (Y/n) "
    char = STDIN.getc

    unless char.downcase == 'y'
      $redis.flushall
      puts "Redis has been flushed!"
    end
  end
end