Tai An Su taiansu

its isn't core to RSpec. One the of the focuses of RSpec is on the documentation aspects of tests. Unfortunately, its often leads to documentation output that is essentially lies. Consider this spec:

User = Struct.new(:name, :email)

describe User do
  subject { User.new("bob") }
  its(:name) { should == "bob" }
end

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

Routes

小心地使用 Match（Rails 3 已实现）

Rails 3 提供了 match 方法供我们自定义 routes，然而我们要小心使用它以避免“跨站脚本攻击”（XSS Attack）。比如像这样的 routes：

注：（r3 代表 Rails 3，r4 代表 Rails 4）

# routes.rb

mkdir -p /usr/local/etc/nginx/sites-{enabled,available}
cd /usr/local/etc/nginx/sites-enabled
ln -s ../sites-available/default.conf
ln -s ../sites-available/default-ssl.conf

File locations:

nginx.conf to /usr/local/etc/nginx/
default.conf and default-ssl.conf to /usr/local/etc/nginx/sites-available
homebrew.mxcl.nginx.plist to /Library/LaunchDaemons/

Make it real

Ideas are cheap. Make a prototype, sketch a CLI session, draw a wireframe. Discuss around concrete examples, not hand-waving abstractions. Don't say you did something, provide a URL that proves it.

Ship it

Nothing is real until it's being used by a real user. This doesn't mean you make a prototype in the morning and blog about it in the evening. It means you find one person you believe your product will help and try to get them to use it.

	# put this in your .bash_profile
	if [ $ITERM_SESSION_ID ]; then
	export PROMPT_COMMAND='echo -ne "\033];${PWD##*/}\007"; ':"$PROMPT_COMMAND";
	fi

	# Piece-by-Piece Explanation:
	# the if condition makes sure we only screw with $PROMPT_COMMAND if we're in an iTerm environment
	# iTerm happens to give each session a unique $ITERM_SESSION_ID we can use, $ITERM_PROFILE is an option too
	# the $PROMPT_COMMAND environment variable is executed every time a command is run
	# see: ss64.com/bash/syntax-prompt.html

	require 'fiddle'

	module IAmAHorriblePerson
	def unset flag
	value = _wrap self
	flags = 8.times.map { \|i\| value[i] }.pack('C8').unpack('Q').first
	[flags & ~flag].pack('Q').unpack('C8').each_with_index { \|n,i\|value[i] = n }
	end

	def class= k

	# First commit

	echo "hello" \| git hash-object -w --stdin
	git update-index --add --cacheinfo 100644 ce013625030ba8dba906f756967f9e9ca394464a hello.txt
	git write-tree
	git commit-tree aaa96c -m "First commit"
	git update-ref refs/heads/master 30b060d9a7b5e93c158642b2b6f64b2b758da40d

	# Second commit

	let &t_8f="^[[38;2;%lu;%lu;%lum"
	let &t_8b="^[[48;2;%lu;%lu;%lum"