zdennis

#!/usr/bin/env bash

#
# Example:
#
#   do_something && notify-self "Successfully did thing!" || notify-self "Failed doing thing!"
#
MESSAGE="$1"
TITLE="Mm-hmm..."
osascript -e "display notification \"$MESSAGE\" with title \"$TITLE\""

zdennis

WITH table_sizes1 AS (
  SELECT
      table_name,
      table_size AS table_size,
      indexes_size AS indexes_size,
      total_size AS total_size
  FROM (
      SELECT
          table_name,
          pg_table_size(table_name) AS table_size,

zdennis

#!/usr/bin/env ruby

if STDIN.tty?
  def print_help
    puts <<-EOT.gsub(/^\s+\|/, '')
      |Usage: ls | grab <column number>
      |       grab <column number> < INFILE
      |       grab <column number> <column number2> <column number3> ... < INFILE
      |
      |grab outputs a specific column of content from STDIN.

zdennis

# When moving from Rails 2 to Rails 3 a change in
# callback behavior can cause issues because
# you can now only have one callback that calls a
# specific method, e.g.
#
#  after_save :foo, if: :bar?
#  after_save :foo, if: :baz?
#
# In the above only the second callback will be stored. The first
# one with the condition on bar? will not appear in the callback chain.

zdennis

# requires pry, parser, and ast gems
#
# It also expects that you have build a file of spec files that should be modified. This file
# should contain one path/to/file per line.
#
# Running:
#   cat list_of_passing_spec_files.txt | xargs ruby-rewrite --load 'mark_specs_as_rails_3.rb' -m

require 'pry'

zdennis

Here’s a quick walkthrough of my own process. I’ve often amended a commit like this:

shell> echo "bar" >> a
shell> git commit -a -m "made a bar"
shell echo "baz" >> a
shell> git commit --amend -C HEAD -a

Only to notice it was a whoops! I may have noticed it right away or noticed it after pushing, or noticed it the next day. So, I’ll run git reflog:

shell> git reflog

zdennis

module N
  def foo
    puts "N: foo" 
    super
  end
end

module O
  def foo
    puts "O: foo" 

zdennis

 # +url+ displays the URL for origin. Works with https:// and git://
  url = !"git remote show origin | grep 'Fetch URL' | ruby -e \"puts 'https://' + STDIN.read.scan(/Fetch URL: git(?:@|:\\/\\/)(.*)/).join.sub('git://', '').sub(':', '/').sub('.git','')\""

  # +open-url+ opens the home page for this repository
  open-url = !"open `git url`"

  # +sha+ displays the current SHA
  sha = log -n1 --format="%H"

  # +sha-url+ shows the current show url for github

zdennis

module M
  def self.included(base)
    base.class_eval do
      alias_method :user_without_name, :user
      alias_method :user, :user_with_name
    end
  end

  def user
    puts "in user"

zdennis

#!/usr/bin/env bash

>passed.txt
>failed.txt

for file in `find spec -name '*_spec.rb'` ; do
  script/rails3 rspec --default-path spec_rails_3 $file
  if [ $? -eq 0 ]; then
    echo $file >> passed.txt
  else