Envek

# Full list of Russian Federation time zones with helper to get this list.
# Place this file in config/initializers/timezones.ru.rb

class ActiveSupport::TimeZone
  @country_zones  = ThreadSafe::Cache.new

  def self.country_zones(country_code)
    code = country_code.to_s.upcase
    @country_zones[code] ||=
      TZInfo::Country.get(code).zone_identifiers.select do |tz_id|

aguegu

# Basic Strongswan ikev2 server setup
 
* paltform: atlantic.net ubuntu 14.04 x64
* the commands below are run with root account 

## Strongswan
```
apt-get install strongswan
apt-get install iptables iptables-persistent
```

jashkenas

Spurred by recent events (https://news.ycombinator.com/item?id=8244700), this is a quick set of jotted-down thoughts about the state of "Semantic" Versioning, and why we should be fighting the good fight against it.

For a long time in the history of software, version numbers indicated the relative progress and change in a given piece of software. A major release (1.x.x) was major, a minor release (x.1.x) was minor, and a patch release was just a small patch. You could evaluate a given piece of software by name + version, and get a feeling for how far away version 2.0.1 was from version 2.8.0.

But Semantic Versioning (henceforth, SemVer), as specified at http://semver.org/, changes this to prioritize a mechanistic understanding of a codebase over a human one. Any "breaking" change to the software must be accompanied with a new major version number. It's alright for robots, but bad for us.

SemVer tries to compress a huge amount of information — the nature of the change, the percentage of users that wil

dommmel

#! /bin/bash

# directory to save backups in, must be rwx by postgres user
BASE_DIR="/var/backups/postgres"
YMD=$(date "+%Y-%m-%d")
DIR="$BASE_DIR/$YMD"
mkdir -p $DIR
cd $DIR

# make database backup

shamil

How to mount a qcow2 disk image

This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.

Step 1 - Enable NBD on the Host

modprobe nbd max_part=8

gcarrion-gfrmedia

# Install Git needed for Git based gems
packages:
  yum:
    git: []
    

stefano-bortolotti

##Preview

Description

Display your iOS App Rating info. It uses iTunes Store website as the source.

##Usage

antirez

<?
require("redis.php");
require("json.php");

$term = $_GET['term'];

$r = new Redis("127.0.0.1","6379");
$r->connect();
$items = $r->zrangebylex("kernel","[$term","[$term\xff",Array("LIMIT","0","10"));

lelandbatey

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

schleg

#!/usr/bin/env bash
apt-get -y update
apt-get -y install build-essential zlib1g-dev libssl-dev libreadline5-dev libyaml-dev
cd /tmp
wget ftp://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p125.tar.gz
tar -xvzf ruby-1.9.3-p125.tar.gz
cd ruby-1.9.3-p125/
./configure --prefix=/usr/local
make
make install