Recently in Computing Category

After pairing with a coworker using Textmate's Blackboard theme, I decided I wanted it for emacs. The font lock I'm using in emacs for ruby didn't let me recreate it perfectly, but it's certainly close enough for me.

Here's my first crack at it: color-theme-blackboard.el

Update: Screenshot.

For those of you who use OmniFocus and won't be getting an iphone, this one could really come in handy. It's a ruby script that talks to OmniFocus via OSA, grabs all the items in a given context, then writes them as poorly-formed html over ssh to a predefined destination. Cheap and dirty, but it's the quickest way I've found to get stuff like this available anywhere, especially in a mobile phone browser.

#!/usr/bin/ruby

require 'rubygems'

require 'rbosa'

require 'net/ssh'

of = OSA.app 'OmniFocus'

shopping_list = of.default_document.contexts.collect { |x| x if x.name == 'Errands' }.compact.first.contexts.collect { |x| x if x.name == 'Shopping' }.compact.first

items = shopping_list.tasks.collect { |x| x.name unless x.completed? }.compact

def post_file( shell, file, datum )

shell.touch(file)

shell.send_command("echo \"#{datum}\" > #{file}")

end

def build_html(items)

"<ul>#{items.collect{|item| '<li>' + item + '</li>' }}</ul>"

end

Net::SSH.start( 'myserver.dreamhost.com' ) do |session|

shell = session.shell.sync

post_file shell, "~/shoppinglist.mydomain.com/index.html", build_html(items)

shell.exit

# session.loop

end

The latest post at Rands in Response started a bit of a heated discussion with a group of friends, and I thought I'd touch on a few of the reasons I think it is absolutely imperative to automate, even if the automation only saves a second.

The concept of automation is an old one. In fact, automation is the reason computers were built in the first place. They were used to automate processes that were too complex or laborious for humans to tackle themselves. In early days, these complex tasks were simple by today's standards; "discover the trajectory of a bomb" or "calculate one plus two". However, as computers have become cheaper they've started to automate everyday things. This is painfully obvious to anyone who lives in the 21st century, but it's a fact that programmers shouldn't forget. A good programmer is someone who's always looking for redundant tasks that can be automated; both to save time and to reduce human error.

Saving time, however, is a concept that carries with it many externalities. The day of writing this post, I have been working on a fairly complex shell script with many moving parts. This itself is not a problem, but the fact that I've been asked to respond to a few emails at random times during the morning provides a significant complication. As "sufferers" of N.A.D.D. will understand, taking 60 seconds to send off an email may well torpedo 30 minutes' worth of productivity. Extrapolate that to 3 separate yet short tasks, and I've lost about half of my morning. This is an important measure to bring into the cost/benefit ratio when discussing automation. Typically, the equation used to calculate a processes' automated value is the following:

a = Amount of time for task (un-automated)
    * Number of times task performed
b = Amount of time for task (automated)
    * Number of times task performed
    + Amount of time to automate the task

However, this simplistic equation misses the issue entirely. If my automated task is short enough to keep me from getting sidetracked by any of the hundreds of windows on my desktop, then it's paid for itself after two uses.