dlueth

#!/bin/bash

if [ ! $(whoami) = 'root' ]; then
	echo "This script should be run as root." > /dev/stderr
	exit 1
fi

spinner()
{
    local pid=$!

wsargent

303 See Other

Location: https://github.com/wsargent/docker-cheat-sheet

Hi there!

The docker cheat sheet has moved to a Github project under https://github.com/wsargent/docker-cheat-sheet.

Please click on the link above to go to the cheat sheet.

NalaGinrut

(use-modules (srfi srfi-1) (ice-9 receiver))

(define (gen-xfix-list str generator)
  (let lp((ret '()) (n (1- (string-length str))))
    (if (zero? n) ret (lp (cons (generator str n) ret) (1- n)))))

(define (gen-prefix-list str)
  (gen-xfix-list str (lambda (str n) (substring str 0 n))))

(define (gen-suffix-list str)

nightire

Routes

小心地使用 Match（Rails 3 已实现）

Rails 3 提供了 match 方法供我们自定义 routes，然而我们要小心使用它以避免“跨站脚本攻击”（XSS Attack）。比如像这样的 routes：

注：（r3 代表 Rails 3，r4 代表 Rails 4）

# routes.rb

vanstee

#!/usr/bin/env ruby

require 'rubygems'
require 'net/http'
require 'uri'
require 'json'
require 'pry'

class User
  attr_accessor :login

piscisaureus

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

tenderlove

Fibur

Fibur is a library that allows concurrency during Ruby I/O operations without needing to make use of callback systems. Traditionally in Ruby, to achieve concurrency during blocking I/O operations, programmers would make use of Fibers and callbacks. Fibur eliminates the need for wrapping your I/O calls with Fibers and a callback. It allows you to write your blocking I/O calls the way you normally would, and still have concurrent execution during those I/O calls.

Example

Say you have a method that fetches data from a network resource:

bkimble

#!/usr/bin/env ruby

# List all keys stored in memcache. 
# Credit to Graham King at http://www.darkcoding.net/software/memcached-list-all-keys/ for the original article on how to get the data from memcache in the first place.

require 'net/telnet'

headings = %w(id expires bytes cache_key)
rows = []

tmm1

$ ./miniruby -e 'class T; end; a = 1..1; b = "hi"; c = []; d = Hash.new; e = T.new; p GC.dump_heap'
0x00154750 allocated @ -e:1 is an OBJECT of type: T
0x0015476c allocated @ -e:1 is a HASH which has data
0x00154788 allocated @ -e:1 is an ARRAY of len: 0.
0x001547c0 allocated @ -e:1 is a STRING (ELTS_SHARED) which has len: 2 and val: hi
0x001547dc allocated @ -e:1 is a STRING which has len: 1 and val: T
0x001547f8 allocated @ -e:1 which is a CLASS  no name - maybe anon class?
0x00154814 allocated @ -e:1 which is a CLASS  named: T inherits from Object
0x00154a98 allocated @ -e:1 is a STRING which has len: 2 and val: hi
0x00154b40 allocated @ -e:1 is an OBJECT of type: Range