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(spit (nth *command-line-args* 2)
      (clojure.string/join "\n"
                           (sort (clojure.string/split-lines (slurp (nth *command-line-args* 1))))))

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Trouble-Free Bundler

Every couple of weeks, I hear someone complaining about some difficulties with Bundler. Yesterday, it happened twice. But somehow I just never have those difficulties. I'm not saying Bundler is perfect; certainly in its early days it wasn't even close. But for the past two years it's been incredibly solid and trouble-free for me, and I think a large part of the reason is the way I use it. Bundler arguably does too much, and just as with Git, a big part of it is knowing what not to do, and configuring things to avoid the trouble spots.

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# I source this from ~/.bash_profile
# I think I got them from @JEG2

BUNDLED_COMMANDS="foreman rackup rails rake rspec ruby shotgun spec watchr nesta cap"

## Functions

bundler-installed()
{
    which bundle > /dev/null 2>&1

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#!/bin/sh
exec "$GIT_EXEC_PATH/git" "$@"

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require 'active_record'

module ActiveRecord
  module Associations

    # This fix allows the association extension methods to work when used in combination
    # with built-in Arel scoping methods (where, joins, etc.) and *also* with named scopes
    # defined on the target class.
    class AssociationProxy
      def with_scope_with_extensions(*args, &block)

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def evolve(generation)
 live_neighbor_stats = generation_stats(generation)
 live_neighbor_stats[3] + (live_neighbor_stats[2] & generation)
end

def generation_stats(live_cells)
  live_cells.each_with_object(Hash.new(0)) {|live_cell, counter|
    neighbors(*live_cell).each {|neighbor| counter[neighbor] += 1 }
  }.each_with_object(Hash.new {|h,k| h[k] = []}) {|(cell, count), collector| collector[count] << cell}
end

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# for background, see http://m.onkey.org/use-index-with-active-record-finders
# and http://twitter.com/#!/dougalcorn/status/4963159878139904

from = "#{quoted_table_name} USE INDEX(index_activities_on_created_at_and_country_id)"
Activity.from(from).where('created_at >= ? AND country_id = ?', 10.days.ago, 79).all

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# Put this in your .irbrc, and then type
# "some_object.my_methods" in an IRB session
# for less noisy exploration of what objects
# can do.

class Object
  def my_methods
    base_object = case self
                  when Class  then Class.new
                  when Module then Module.new

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entries.map(&:job).sort_by(&:number).map(&:project).compact.uniq