dragonfax

~/.gitconfig: lg = log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --date=relative

dragonfax

Use instance.methods - Object.methods to list only the non-stock methods implemented by the instances class.

> e = Exception.new
 => #<Exception: Exception> 


> e.methods 
 => [:exception, :==, :to_s, :message, :inspect, :backtrace, :set_backtrace, :nil?, :===, :=~, :!~, :eql?, :hash, :<=>, :class, :singleton_class, :clone, :dup, :initialize_dup, :initialize_clone, :taint, :tainted?, :untaint, :untrust, :untrusted?, :trust, :freeze, :frozen?, :methods, :singleton_methods, :protected_methods, :private_methods, :public_methods, :instance_variables, :instance_variable_get, :instance_variable_set, :instance_variable_defined?, :instance_of?, :kind_of?, :is_a?, :tap, :send, :public_send, :respond_to?, :respond_to_missing?, :extend, :display, :method, :public_method, :define_singleton_method, :object_id, :to_enum, :enum_for, :equal?, :!, :!=, :instance_eval, :instance_exec, :__send__, :__id__] 

dragonfax

replace 'blah' with your regex

find ./ -type f -print | xargs perl -ne 'print $1,"\n" if m{(blah)}'

dragonfax

I was digging around and found this little gem in a blog post on: http://banisterfiend.wordpress.com/2010/01/07/controlling-object-scope-in-ruby-1-9/

As an ex-perl hacker, I'm more partial to perl's local() rather than lisp's let()

def local
  yield
end

dragonfax

Nesting pry works beautifully. Kudos to the pry team.

Nesting pry: (note the 2 exit statements needed)

Hershwild:~ jstillwell$ pry
[1] pry(main)> binding.pry
[1] pry(main)> exit
=> nil

dragonfax

To enable a script to

• from its project directory
• run from anywhere on the system.
• from inside or outside its project directory
• with its own lib directory
• with a Gemfile (bundler)
• with symlinks to it from various places like /usr/local/bin
• with a garuanteed ruby version
• with rvm, but without having to run rvm use each session.

dragonfax

class NilPointerException < Exception
end

dragonfax

rotated = []
y = 0
`banner -w 30 W T F`.split("\n").each { |line| 
  x = 0
  line.each_char { |char| 
    rotated[x] ||= []
    rotated[x][y] = char
    x += 1 
  }
  y += 1

dragonfax

class NoFucks {
  public NoFucks () throws Exception {
    throw new Exception();
  }
}
...
try {
  NoFucks.class.newInstance();
} catch(InstantiationException e) {
} catch(IllegalAccessException e) {

dragonfax

mkdir ~/.git_template
mkdir ~/.git_template/hooks
cp $(gem contents pre-commit | grep pre-commit-hook) ~/.git_template/hooks/pre-commit 
git config --global init.templatedir '~/.git_template'

# also, to implement in any pre-existing repos, just execute 'git init' in them.