Dolzenko

These are various bits and pieces I've extracted from the application I worked on which were copied just too many times, but yet too small to be in the separate gems.

require "dolzenko/django_q_object"; require "dolzenko/django_f_object"

Django F() And Q() Objects For Rails

require "dolzenko/shell_out"

ShellOut provides a convenient feature-rich way to "shell out" to external commands. Most useful features come from using PTY to execute the command. Not available on Windows, Kernel#system will be used instead. Tries to stay compatible between system and PTY backends.

require "dolzenko/error_print"

Formats the Exception so that it looks familiar, i.e. exactly like your interpreter does it. Port of MRI native error_print function.

require "dolzenko/remote_download"

Simple Net::HTTP mumbo jumbo we all have to use occasionally.

require "dolzenko/alias_method_chain_once"

Correct alias_method_chain_once implementation.

require "dolzenko/io_interceptor"

Safe way to intercept IO stream where just replacing STDOUT doesn't work.

require "dolzenko/global_net_http_debug"

Turns on Net::HTTP debugging globally so that you know whatever underlying library is accessing network and what it does.

require "dolzenko/try_block"

My solution of Guarded Evaluation problem . Everyone has that :)

require "dolzenko/acts_as"

My attempt at abstracting acts_as_* pattern. Need to get rid of InstanceMethods class to make it year 2010 compatible.

require "dolzenko/core_ext/kernel/r.rb"

puts for web application debugging.

Scripting Comfort

Whenever writing one-off script it is much nicer to just require "dolzenko/all" than to keep repeating same require thing again and again. Turns out this is expensive luxury with 1.9.2.

Definition

require "English"
require "yaml"
require "open-uri"
autoload :FileUtils, "fileutils"
autoload :OptionParser, "optparse"
module Net
  autoload :HTTP, "net/http"
end
require "active_support/all"
require "facets"
require "require_gist"
require_gist "371861/abc6d24346864e5cb33b4eab330569565b1dd8c2/shell_out.rb", "72b19c8955f87f9b408a92a77440cda987b1a01f" # http://gist.github.com/371861
require_gist "375386/642be35e02a09b7dc5736f462ea1d8368864ffa8/error_print.rb", "12f893f4abd1f0ea19d198f6ff1ac66d8b8675ea" # http://gist.github.com/375386

Price

> time ruby -v -W2 -e 'require "dolzenko"'

ruby 1.8.7 (2009-12-24 patchlevel 248) [i686-linux], MBARI 0x8770, Ruby Enterprise Edition 2010.01

real 0.89 user 0.40 sys 0.48

ruby 1.8.7 (2010-01-10 patchlevel 249) [i686-linux]

real 0.78 user 0.40 sys 0.36

ruby 1.8.7 (2008-08-11 patchlevel 72) [i386-mswin32]

real 3.75 user 0.00 sys 0.01

ruby 1.9.2dev (2010-04-02 trunk 27162) [i686-linux]

real 7.17 user 6.32 sys 0.72 
# WTF??? http://redmine.ruby-lang.org/issues/show/3010 ?