welch

It is a rite of passage to post one's successful build instructions for OpenCV on a Mac
after you've tried all the other conflicting instructions out there and still failed. 
brew failed for me (was this because I could never get a happy brew doctor situation? 
I'll never know). macports? nope. build-from-source recipes? I didn't find one that 
worked for me.

Here's what did work to build OpenCV 2.4.5 from the distribution tarball using cmake,
on Mac OSX 10.8.4, linked to an anaconda installation rather than the system python. 
It is a mashup of various bits of advice out there. If you're already comfortable with 
build/install from source, all you need to read is the cmake invocation in step 3 and 

plentz

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

bradland

# This build script will build Ruby 2.0.0-p247. You will need su to
# root or sudo as required.

# This build tested against Debian 7.0 64-bit arch, installed from net-inst image.

# These aren't specifically Ruby deps; more for building software in general
# (you probably already have them)
apt-get install -y build-essential autoconf

# These deps will support common libraries like yaml and give you the best irb experience.

ewherrmann

require 'resque/tasks'

namespace :resque do
  def del(key)
    Resque.redis.keys(key).each { |k| Resque.redis.del(k) }
  end

  desc "Resque setup according to installation guide"
  task :setup => :environment

georg

IT'S SHOWTIME

HEY CHRISTMAS TREE isLessThan100
YOU SET US UP @NO PROBLEMO
HEY CHRISTMAS TREE n
YOU SET US UP 0
HEY CHRISTMAS TREE multiple
YOU SET US UP @NO PROBLEMO

STICK AROUND isLessThan100

woglinde

#!/bin/sh

logger "SSH COMMAND is $SSH_ORIGINAL_COMMAND"

if test -n "$SSH_ORIGINAL_COMMAND" -a parse_to_allow($SSH_ORIGINAL_COMMAND) ; then
    /bin/bash -c "$SSH_ORIGINAL_COMMAND"
else
    logger "shell access denied"
fi

tristanm

Migrating a Rails project from MySQL to PostgreSQL

This brief guide is written from my own experience with migrating a large (~5GB) MySQL database to PostgreSQL for a Rails project.

No warranties, guarantees, support etc. Use at your own risk and, as always, ENSURE YOU MAKE BACKUPS FIRST!

I chose [pgloader][1] because it's extremely fast. YMMV.

1. Replace mysql2 gem with pg in Gemfile.
2. Update config/database.yml for PostgreSQL. I used [Rails' template][2] as a starting point.

olivierlacan

This guide assumes that you recently run brew upgrade postgresql and discovered to your dismay that you accidentally bumped from one major version to another: say 9.3.x to 9.4.x. Yes, that is a major version bump in PG land.

First let's check something.

brew info postgresql

The top of what gets printed as a result is the most important:

robertsdionne

#!/usr/bin/env bash

# Assuming OS X Yosemite 10.10.4

# Install XCode and command line tools
# See https://itunes.apple.com/us/app/xcode/id497799835?mt=12#
# See https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/xcode-select.1.html
xcode-select --install

francois-blanchard

Error Capistrano deploy - fatal: Could not parse object 'xx...xx'

1. Connect you to your server $ ssh user@myserver
2. Go to your deploy path and select the shared directorycd /your/directory/deploy/shared
3. Remove the git cache rm -rf cached-copy
4. Retry to deploy & have fun ;)