jrochkind

A Capistrano Rails Guide

by Jonathan Rochkind, http://bibwild.wordpress.com

why cap?

Capistrano automates pushing out a new version of your application to a deployment location.

I've been writing and deploying Rails apps for a while, but I avoided using Capistrano until recently. I've got a pretty simple one-host deployment, and even though everyone said Capistrano was great, every time I tried to get started I just got snowed under not being able to figure out exactly what I wanted to do, and figured I wasn't having that much trouble doing it "manually".

hrldcpr

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

henrik

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

zrong

#!/bin/bash

##############################
# dnspodsh v0.3
# 基于dnspod api构架的bash ddns客户端
# 作者：zrong(zengrong.net)
# 详细介绍：http://zengrong.net/post/1524.htm
# 创建日期：2012-02-13
# 更新日期：2012-03-11
##############################

yegle

Bash Shell启动方式与rc脚本

Shell的不同分类

根据启动Bash Shell的方式不同，对Shell有两种分类方式

登录Shell与非登录Shell

根据Shell的启动方式不同，可以将Shell分为

xdite

module Order
  module Ranking
    def self.included(base)
      base.extend(ClassMethods)
    end

    def update_r_ranking
      t = self
      t.r_ranking = Topic.calculate_ranking(t.pushes_count, t.created_at)
      t.save(:validate => false)

mathiasverraes

#! /bin/sh
alias gs="git status"
alias gc="git commit"
alias gr="git checkout"
alias ga="git add"
alias gl="git lola"

jasoncodes

# The latest version of this script is now available at
# https://github.com/jasoncodes/dotfiles/blob/master/aliases/rbenv.sh

VERSION=1.9.3-p286
brew update
brew install rbenv ruby-build rbenv-vars readline ctags
if [ -n "${ZSH_VERSION:-}" ]; then
  echo 'eval "$(rbenv init - --no-rehash)"' >> ~/.zshrc
else
  echo 'eval "$(rbenv init - --no-rehash)"' >> ~/.bash_profile

cdmwebs

Friendly URLs

By default, Rails applications build URLs based on the primary key -- the id column from the database. Imagine we have a Person model and associated controller. We have a person record for Bob Martin that has id number 6. The URL for his show page would be:

/people/6

But, for aesthetic or SEO purposes, we want Bob's name in the URL. The last segment, the 6 here, is called the "slug". Let's look at a few ways to implement better slugs.

benedikt

# encoding: UTF-8

Capistrano::Configuration.instance(:must_exist).load do
  namespace :rails do
    desc "Open the rails console on one of the remote servers"
    task :console, :roles => :app do
      hostname = find_servers_for_task(current_task).first
      exec "ssh -l #{user} #{hostname} -t 'source ~/.profile && #{current_path}/script/rails c #{rails_env}'"
    end
  end