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@ivanvanderbyl
ivanvanderbyl / gist:4222308
Created December 6, 2012 06:55
Postgres 9.1 to 9.2 upgrade guide for Ubuntu 12.04
sudo add-apt-repository ppa:pitti/postgresql
sudo apt-get update
sudo apt-get install postgresql-9.2 postgresql-server-dev-9.2 postgresql-contrib-9.2
sudo su -l postgres
psql -d template1 -p 5433
CREATE EXTENSION IF NOT EXISTS hstore;
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
service postgresql stop
/usr/lib/postgresql/9.2/bin/pg_upgrade -b /usr/lib/postgresql/9.1/bin -B /usr/lib/postgresql/9.2/bin -d /var/lib/postgresql/9.1/main/ -D /var/lib/postgresql/9.2/main/ -O "-c config_file=/etc/postgresql/9.2/main/postgresql.conf" -o "-c config_file=/etc/postgresql/9.1/main/postgresql.conf"
@afeld
afeld / gist:5704079
Last active April 21, 2025 15:11
Using Rails+Bower on Heroku
@tanraya
tanraya / gist:7438337
Created November 12, 2013 20:44
Carrierwave auto orient image explained
module CarrierWave
module MiniMagick
# Rotates the image based on the EXIF Orientation
# According to http://jpegclub.org/exif_orientation.html
def auto_orient
manipulate! do |image|
case image['EXIF:Orientation'].to_i
when 2
image.flop
when 3
#!/bin/bash
# Interactive PoPToP install script on a OpenVZ VPS
# Tested on Debian 5, 6, and Ubuntu 11.04
# 2011 v1.1
# Author: Commander Waffles
# http://www.putdispenserhere.com/pptp-debian-ubuntu-openvz-setup-script/
echo "######################################################"
echo "Interactive PoPToP Install Script for OpenVZ VPS"
echo "by Commander Waffles http://www.putdispenserhere.com"
@oelmekki
oelmekki / doc.md
Created December 30, 2015 19:37
Rails + Browserify + React + es7

1. Gemfile

gem 'browserify-rails', '1.5.0' # until fix: https://github.com/browserify-rails/browserify-rails/issues/101
gem 'react-rails'

Browserify-rails allows to use browserify within assets pipeline. React-rails is here only to allow to use #react_component (and thus, prerendering).

Note that jquery-rails can be removed from Gemfile, the npm version of jquery and jquery-ujs will be used instead.

@vasanthk
vasanthk / System Design.md
Last active April 30, 2025 12:06
System Design Cheatsheet

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

  1. Clarify and agree on the scope of the system
  • User cases (description of sequences of events that, taken together, lead to a system doing something useful)
    • Who is going to use it?
    • How are they going to use it?