ihower

Web Developer 軟體工程師

你對網路、行動科技及樂活抱有熱情嗎？
你熱愛網路與行動科技帶來的變化且對於參與 Mobile Health 領域的創業公司有興趣嗎？

我們 Passion Bean 熱情豆目前正在招募 Web Developer!
你將負責 backend web service 的技術開發，
你將與知名的 Ruby on Rails 以及 iOS 開發者一同工作，
我們會提供優良的硬體設備以及舒適的工作空間，讓你能夠發揮最大的戰力。

ihower

namespace :deploy do

  namespace :assets do
    task :precompile, :roles => :web, :except => { :no_release => true } do
      from = source.next_revision(current_revision)
      if capture("cd #{latest_release} && #{source.local.log(from)} vendor/assets/ app/assets/ | wc -l").to_i > 0
        run %Q{cd #{latest_release} && #{rake} RAILS_ENV=#{rails_env} #{asset_env} assets:precompile}
      else
        logger.info "Skipping asset pre-compilation because there were no asset changes"
      end

ihower

= httperf --server localhost --port 3000 --uri /render_text --num-conns 500 --num-calls 20

== Ruby 1.9.2/WEBrick
Request rate: 329.5 req/s (3.0 ms/req)
Request rate: 334.6 req/s (3.0 ms/req)

== Ruby 1.9.2/Passenger
Request rate: 539.5 req/s (1.9 ms/req)
Request rate: 543.1 req/s (1.8 ms/req)

ihower

module Resque
  module Helpers
   
    # Given a camel cased word, returns the constant it represents
    #
    # constantize('JobName') # => JobName
    def constantize(camel_cased_word)
      camel_cased_word = camel_cased_word.to_s

      if camel_cased_word.include?('-')

ihower

desc 'Runs test:units, test:functionals, test:integration together (also available: test:benchmark, test:profile, test:plugins)'
task :test do
  tests_to_run = ENV['TEST'] ? ["test:single"] : %w(test:units test:functionals test:integration)
  errors = tests_to_run.collect do |task|
    begin
      Rake::Task[task].invoke
      nil
    rescue => e
      { :task => task, :exception => e }
    end

ihower

class Fixnum

  alias_method :old_to_s, :to_s

  def to_s
    old_to_s
  end

end

ihower

# <xml version="1.0" encoding="UTF-8">
# <DataFeeds>
#   <Item>
#     ....
#   </Item>
#   <Item>
#     ...
#   </Item>
# </DataFeeds>

ihower

Rails 3.1 overview

• https://gist.github.com/958283
• https://rails.lighthouseapp.com/projects/8994-ruby-on-rails/milestones/71470-31
• http://hemju.com/2011/02/23/rails-3-1-release-rumors-and-news-about-features/
• http://www.hagenburger.net/TALKS/rails-3.1-frontend-performance.html#slide1

Railtie

Console shows SQL queries right there.

ihower

require 'rubygems'
require 'nokogiri'
require 'fastercsv'

doc = Nokogiri::HTML( File.read("timesheet.txt") )
memo = {}
elapsed = {}

doc.css('div').each do |div|   
  if div.attributes["class"].value =~ /(.*)-memo$/

ihower

function git_branch {
    ref=$(git symbolic-ref HEAD 2> /dev/null) || return;
    echo "("${ref#refs/heads/}") ";
}

function git_since_last_commit {
    now=`date +%s`;
    last_commit=$(git log --pretty=format:%at -1 2> /dev/null) || return;
    seconds_since_last_commit=$((now-last_commit));
    minutes_since_last_commit=$((seconds_since_last_commit/60));