pietern

# Author: Pieter Noordhuis
# Description: Simple demo to showcase Redis PubSub with EventMachine
#
# Update 7 Oct 2010:
# - This example does *not* appear to work with Chrome >=6.0. Apparently,
#   the WebSocket protocol implementation in the cramp gem does not work
#   well with Chrome's (newer) WebSocket implementation.
#
# Requirements:
# - rubygems: eventmachine, thin, cramp, sinatra, yajl-ruby

justinxreese

# Pretty simple solution to harness the capability of multithreading without running into problems 
# caused by doing too many things at once.

# In this example, I was trying to download hundreds of web pages, but opening all those connections 
# simultaneously caused a variety of errors

# Contains download_link(link,save_dir,save_name) to download and save webpages locally (irrelevant)
require 'download_page'

# keep the threads in here

ijt

package main

import (
        "fmt"
        "io"
        "log"
        "net/http"
        "os"
)

cjus

#!/bin/bash
function jsonval {
    temp=`echo $json | sed 's/\\\\\//\//g' | sed 's/[{}]//g' | awk -v k="text" '{n=split($0,a,","); for (i=1; i<=n; i++) print a[i]}' | sed 's/\"\:\"/\|/g' | sed 's/[\,]/ /g' | sed 's/\"//g' | grep -w $prop`
    echo ${temp##*|}
}

json=`curl -s -X GET http://twitter.com/users/show/$1.json`
prop='profile_image_url'
picurl=`jsonval`

cheenu

## This gist is intended to provide a code example for the 
# 'Making Signed Requests' section of the 'Authentication Overview' document.
# (http://developer.netflix.com/docs/Security).
#
# We are going to make a catalog request. The hardest part of
# it is figuring out how to generate the oauth_signature.
require 'cgi'
require 'base64'
require 'openssl'

fnichol

A Common .ruby-version File For Ruby Projects

Background

I've been using this technique in most of my Ruby projects lately where Ruby versions are required:

• Create .rbenv-version containing the target Ruby using a definition name defined in ruby-build (example below). These strings are a proper subset of RVM Ruby string names so far...
• Create .rvmrc (with rvm --create --rvmrc "1.9.3@myapp") and edit the environment_id= line to fetch the Ruby version from .rbenv-version (example below).

Today I learned about another Ruby manager, rbfu, where the author is using a similar technique with .rbfu-version.

andreyvit

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

vikki

ytVideoUrlMatcher = r'url_encoded_fmt_stream_map=url=([^&]*)&'
ytVideoInfoUrlBase = 'http://www.youtube.com/get_video_info?html5=1&video_id=' 

def getHTML5VideoFileFromYouTube(videoId):
   videoInfoUrl  = ytVideoInfoUrlBase + videoId
   videoInfoFile = urllib2.urlopen(videoInfoUrl)
   videoInfo      = urllib2.unquote(videoInfoFile.read())

   vidMatch =  re.search(ytVideoUrlMatcher, videoInfo)
   videoUrl  =  vidMatch.groups(0)[0]

dblock

class ApiLogger < Grape::Middleware::Base
  
  def before
    Rails.logger.info "[api] Requested: #{request_log_data.to_json}\n" +
     "[api] #{response_log_data[:description]} #{response_log_data[:source_file]}:#{response_log_data[:source_line]}"
  end
  
private

  def request_log_data