Building a Rails Gmail Client Outside-In
Posted: May 29, 2012 Filed under: Uncategorized | Tags: ruby, software development, rails Leave a comment »New Article: Building a Rails Gmail Client Outside-In/
For all the new projects that I start with my stakeholders I have been pushing Outside–in software development and Specification by example. Specification by Example really improves the collabora…
Rendering Partials with Sinatra
Posted: April 7, 2012 Filed under: Uncategorized | Tags: ruby, sinatra Leave a comment »Simple way to render partials with Sinatra:
https://gist.github.com/119874#gistcomment-238742
Ruby 1.9.3 IMAP segfault with OpenSSL
Posted: April 1, 2012 Filed under: Uncategorized | Tags: ruby Leave a comment »After upgrading to Ruby 1.9.3 I spent most of the morning trying to figure out why my IMAP code was giving a segfault
..
1.9.3p0 :001 > require 'net/imap'
=> true
1.9.3p0 :002 > m = Net::IMAP.new('imap.gmail.com', 993, true, nil, false)
/Users/carlos/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/net/imap.rb:1439: [BUG] Segmentation fault
ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.3.0]
-- Control frame information -----------------------------------------------
c:0028 p:---- s:0108 b:0108 l:000107 d:000107 CFUNC :connect
c:0027 p:0198 s:0105 b:0105 l:000104 d:000104 METHOD /Users/carlos/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/net/imap.rb:1439
c:0026 p:0172 s:0100 b:0100 l:000099 d:000099 METHOD /Users/carlos/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/net/imap.rb:1036
c:0025 p:---- s:0091 b:0091 l:000090 d:000090 FINISH
c:0024 p:---- s:0089 b:0089 l:000088 d:000088 CFUNC :new
c:0023 p:0023 s:0083 b:0083 l:001b28 d:001470 EVAL (irb):2
c:0022 p:---- s:0080 b:0080 l:000079 d:000079 FINISH
c:0021 p:---- s:0078 b:0078 l:000077 d:000077 CFUNC :eval
..
Turns out it was related to OpenSSL and the fact that I forgot to install the Ruby OpenSSL extensions. Chris Irish’s post reminded me of the requirement.
$ rvm remove ruby-1.9.3
$ rvm install ruby-1.9.3 --with-openssl-dir=/opt/local --with-iconv-dir=$rvm_path/usr
..
1.9.3-p0 :003 > m = Net::IMAP.new('imap.gmail.com', 993, true, nil, false)
=> #<Net::IMAP:0x007f808500cc30 @mon_owner=nil, @mon_count=0, @mon_mutex=#, @host="imap.gmail.com", @port=993, @tag_prefix="RUBY", @tagno=0, @parser=#, @sock=#, @usessl=true, @responses={}, @tagged_responses={}, @response_handlers=[], @tagged_response_arrival=#<MonitorMixin::ConditionVariable:0x007f808500c280 @monitor=#, @cond=#<ConditionVariable:0x007f808500c258 @waiters=[], @waiters_mutex=#>>, @continuation_request_arrival=#<MonitorMixin::ConditionVariable:0x007f808312c1d0 @monitor=#, @cond=#<ConditionVariable:0x007f808312c1a8 @waiters=[], @waiters_mutex=#>>, @idle_done_cond=nil, @logout_command_tag=nil, @debug_output_bol=true, @exception=nil, @greeting=#<struct Net::IMAP::UntaggedResponse name="OK", data=#, raw_data="* OK Gimap ready for requests from 174.19.150.134 7if4443230pbt.12\r\n">, @client_thread=#, @receiver_thread=#, @receiver_thread_terminating=false>
1.9.3-p0 :004 >
Rails Common Commands
Posted: October 3, 2010 Filed under: Uncategorized | Tags: rails, ruby, software development 1 Comment »A list of frequent Rails command line commands.
- rvm use ruby-1.9.2-p0 - ruby version manager; switches to Ruby 1.9.2
- rvm use ruby-1.9.2-p0 --default - ruby version manager; sets 1.9.2 as default
- rvm use system - ruby version manager; switches to Ruby 1.87
- rails new - creates a new Rails application
- rails server [s] - launches WEBrick web server
- rails generate [g] - lists available generators
- rails generate controller --help - provides usage documentation
- rails generate model --help - provides usage documentation
- rails generate migration --help - provides usage documentation
- rails destroy controller [Name] - undo generate controller
- rails destroy model [Name] - undo generate model
- rails generate scaffold [Name] --skip --no-migration - scaffold skipping existing files
- rake db:migrate - runs database migrations
- rake db:test:clone - clones current environment's database schema
- rake db:test:purge - empties the test database
- rake routes - list of all of the available routes
- rake -T - list of rake commands
- git init - creates git repo
- git add . - adds all files to working tree
- git commit -m "Initial commit" - commits files to repo
- git status - status of the working tree
- git push origin master - merges local repo with remote
- git checkout -b new-dev - creates topic branch
- git checkout master - switches to master branch
- git merge new-dev - merges new-dev branch into master branch
- git checkout -f - undo uncommitted changes on working tree
- git branch - list branches
- git branch -d modify-README - deletes branch
- git mv README README.markdown - renames files using move command
- heroku create - creates app on Heroku servers
- git push heroku master - pushs app on to Heroku servers
- heroku rake db:migrate - runs database migrations on Heroku servers
- heroku pg:reset SHARED_DATABASE --confirm [app name] - deletes database file
- heroku db:push - transfer an existing database to Heroku.
- heroku logs - get logs.
- rails console - command line interface to Rails app
- rails dbconsole - command line database interface
- bundle install - installs gems from Gemfile
Rubyist OS X Dev setup
Posted: May 30, 2010 Filed under: Uncategorized | Tags: os_x, ruby, software development 1 Comment »I just bought a shiny new MacBook Pro with a 2.4 GHz Core i5, 8 GB Memory, on OS X 10.63 and thought I would share my setup.
TextMate
Head over to http://macromates.com/ and download TextMate. Once we have installed TextMate we are going to configure it. From the TextMate menu go to:
TextMate >> Preferences >> Fonts & Colors. Then select the “Twilight” theme.
For smaller projects where we do the markup ourselves we are going to use Haml, which we will install shortly, TextMate does not include this bundle by default, so we need to add it. Open up terminal and enter the following:
cd /Applications/TextMate.app/Contents/SharedSupport/Bundles svn co "http://svn.textmate.org/trunk/Bundles/Ruby%20Haml.tmbundle/"
Back in TextMate go to Bundles >> Bundle Editor >> Reload Bundles.
Terminal
Next on our list is to configure Terminal.
The first thing we want to do is setup the bash prompt for Git. This cool trick will show our checked out topic branch right at the prompt:
Open a Terminal session and type the follow:
sudo mate ~/.bash_login
To configure we will copy the following into our .bash_login file:
RED="\[33[0;31m\]"
YELLOW="\[33[0;33m\]"
GREEN="\[33[0;32m\]"
BLUE="\[33[0;34m\]"
LIGHT_RED="\[33[1;31m\]"
LIGHT_GREEN="\[33[1;32m\]"
WHITE="\[33[1;37m\]"
LIGHT_GRAY="\[33[0;37m\]"
COLOR_NONE="\[\e[0m\]"
function parse_git_branch {
git rev-parse --git-dir &> /dev/null
git_status="$(git status 2> /dev/null)"
branch_pattern="^# On branch ([^${IFS}]*)"
remote_pattern="# Your branch is (.*) of"
diverge_pattern="# Your branch and (.*) have diverged"
if [[ ! ${git_status}} =~ "working directory clean" ]]; then
state="${RED}⚡"
fi
# add an else if or two here if you want to get more specific
if [[ ${git_status} =~ ${remote_pattern} ]]; then
if [[ ${BASH_REMATCH[1]} == "ahead" ]]; then
remote="${YELLOW}↑"
else
remote="${YELLOW}↓"
fi
fi
if [[ ${git_status} =~ ${diverge_pattern} ]]; then
remote="${YELLOW}↕"
fi
if [[ ${git_status} =~ ${branch_pattern} ]]; then
branch=${BASH_REMATCH[1]}
echo " (${branch})${remote}${state}"
fi
}
function prompt_func() {
previous_return_value=$?;
# prompt="${TITLEBAR}$BLUE[$RED\w$GREEN$(__git_ps1)$YELLOW$(git_dirty_flag)$BLUE]$COLOR_NONE "
prompt="${TITLEBAR}${BLUE}[${RED}\w${GREEN}$(parse_git_branch)${BLUE}]${COLOR_NONE} "
if test $previous_return_value -eq 0
then
PS1="${prompt}➔ "
else
PS1="${prompt}${RED}➔${COLOR_NONE} "
fi
}
PROMPT_COMMAND=prompt_func
Next let’s make terminal a little prettier. From the Terminal menu:
Terminal >> Preferences >> Startup; New window settings: "Homebrew". Terminal >> Preferences >> Settings; Font select "Andale Mono 18pt".
Now that we have TextMate and Terminal configured we are going to setup our development tools.
Development Tools
XCode Tools
Go to http://developer.apple.com/mac/ and download the latest version of XCode. Once it is downloaded simply run the installer.
Git
Next we will download the git-osx-installer, then run it.
RubyGems
From terminal we need to update our RubyGems:
sudo gem install rubygems-update sudo update_rubygems
SSH
Still at terminal we will run:
ssh-keygen -t rsa -C "cgabaldon@gmail.com" cat ~/.ssh/id_rsa.pub | pbcopy
GitHub
Then we will navigate over to GitHub.com >> Account Settings to add our RSA key that we copied to the clipboard.
MySQL
We are next heading over to download mysql-5.1.47-osx10.6-x86_64.dmg, and then once downloaded run the installer.
After MySQL is installed we will install the MySQL preference pane which gets added to the OS X System Preferences. To install we simply double clicking on the MySQL.prefPane contained within the MySQL install package. This gives us a convenient way to start and stop our MySQL server from the System Preferences.
Back to terminal to add our newly installed MySQL server to our path:
cd sudo mate .bash_login # add: export PATH=/usr/local/mysql/bin:$PATH
Then last, but not least we need to install our ruby mysql gem:
sudo gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config
Sinatra
sudo gem install sinatra
Rails
sudo gem install rails
Other Gems
sudo gem install sequel sudo gem install haml sudo gem install do_sqlite3 sudo gem install cheat sudo gem install cucumber sudo gem install dancroak-twitter-search sudo gem install faker sudo gem install geokit sudo gem install giraffesoft-timeline_fu sudo gem install github sudo gem install heroku sudo gem install json sudo gem install mislav-hanna sudo gem install nokogiri sudo gem install passenger sudo gem install rack sudo gem install railsmachine sudo gem install RedCloth sudo gem install redgreen sudo gem install reek sudo gem install rest-client sudo gem install right_aws sudo gem install right_http_connection sudo gem install rr sudo gem install rspec sudo gem install technicalpickles-le-git sudo gem install thoughtbot-factory_girl sudo gem install thoughtbot-paperclip sudo gem install thoughtbot-shoulda sudo gem install webmat-git_remote_branch sudo gem install webrat sudo gem install wirble
Capistrano
To simplify deployment we need to install Capistrano:
sudo gem install capistrano sudo gem install capistrano-ext
FireFox
We of course need to install FireFox, by downloading and installing.
FireBug
Then Firebug and YSlow to help us on our front end engineering work.
Quicksilver
To help us keep our hands off the mouse we will install Quicksliver so we can exercise our keyboard foo. To install simply extract the tarball and drag to Applications.
Update the mappings to be Apple+Space for Quicksilver and Option+Space for Spotlight.
Fluid
Finally, we will install Fluid to help us turn our commonly visited sites into apps. Once downloaded drag to Applications.
Virtual Box
All production applications get deployed to a LAMP server, so we need a place to test out various configurations locally. Say hello to virtualization! We are going to use VirtualBox; download and install.
Evernote
Never forget anything; install Evernote and sign up.
Concentrate
Multitasking does not work when trying program, distractions will kill you. We are going to install Concentrate to apply the Pomodoro technique to keep focused and productive.
Things
We have a lot of Things to get done, so we need a great task management tool.
Growl
Most of the cooler OSX applications support notifications, Growl is the system for doing that.
Pencil
Pencil is one of the coolest UI prototyping tools I have used since a Sharpie.
Hack
We are now ready to do some serious hacking..
My Interview on RubyLearning blog
Posted: July 21, 2009 Filed under: Uncategorized | Tags: ruby Leave a comment »I recently had the pleasure of being interviewed by Satish Talim for his RubyLearning Blog on his mini series – “How do I learn and master Sinatra?” – by top Rubyists using Sinatra.
The interview series provides insight and commentary from notable Sinatra developers, with the goal of facilitating and providing answers to the questions Ruby beginners face on how to learn and master Sinatra.
Satish Talim is a programmer, author, trainer, and speaker. A recognized expert in the field of software development with over 30+ years of I.T. experience, Satish has consulted and trained teams at various companies in India and the US.
http://rubylearning.com/blog/2009/07/21/carlos-gabaldon-how-do-i-learn-and-master-sinatra/
Sinatra rake tasks
Posted: May 25, 2009 Filed under: Uncategorized | Tags: ruby Leave a comment »Since I have been playing around with Sinatra again, I decided that what Sinatra needs is some automation for some of the boring day to day tasks. So I created a GitHub bucket to dump my Rake tasks. I only have 1 task, to create a new project, but I have a lot new projects that I will be doing in Sinatra in the coming months, so I know there will be a cornucopia of tasks.
More on Sinatra
Posted: May 23, 2009 Filed under: Uncategorized | Tags: ruby Leave a comment »I wrote another article on the cool Ruby web framework DSL Sinatra.
In my last article I wrote about the cool Ruby DSL web framework called Sinatra which is taking the Ruby world by storm. I decided that another “How to” article on some of Sintra’s other kick ass features was just what Frank would expect.
..










