malclocke

# RSpec matcher to spec delegations.
#
# Usage:
#
#     describe Post do
#       # post.name -> post.author.name
#       it { should delegate(:name).to(:author) }
#
#       # post.author_name -> post.author.name
#       it { should delegate(:author_name).to(:author).as(:name) }

malclocke

#! /usr/bin/env python
import pyfits
import argparse

parser = argparse.ArgumentParser(
    description='Add BeSS FITS headers to a file')
parser.add_argument('filename', type=str, help='FITS filename')
parser.add_argument('--outfile', '-o', type=str, help='Output filename',
    required=True)

malclocke

#!/usr/bin/env ruby
#
# Usage: ./offline_pull_requests.rb user/repo
#
require 'octokit'
require 'erb'
require 'redcarpet'

def filename_for(pull)
  '%d.html' % pull.number

malclocke

$ heroku run bash
Running `bash` attached to terminal... up, run.6771
~ $ ls -l /dev/stdin
lrwxrwxrwx 1 root root 15 2014-08-11 22:31 /dev/stdin -> /proc/self/fd/0
~ $ ls -l /proc/self/fd/0
lrwx------ 1 u51787 51787 64 2014-08-11 22:31 /proc/self/fd/0 -> /dev/pts/1
~ $ id
uid=51787(u51787) gid=51787
~ $ echo echo | cat
echo

malclocke

desc <<-EOT
Display the id and error messages of all invalid instances of each model in
model_classes, which should be a comma separated list of model names.  If
model_classes is blank all models will be reported.
EOT
task :validate_models, [:models] => :environment do |t, args|
  model_classes = if args[:models]
                    args[:models].split(',').map(&:constantize)
                  else
                    Rails.application.eager_load!

malclocke

def value_of_first_matching_key_in_hash(hash, array_of_keys)
end

describe do
  it 'searches a hash for an array of keys and returns the value of the first found' do
    keys = [:a, :b, :c]

    hash = {:c => 3, :b => 2, :a => 1}
    expect(value_of_first_matching_key_in_hash(hash, keys)).to eql 1

malclocke

# Log an exception with the backtrace cleaned as per the 'Application Trace'
# in the development mode browser exception view.
logger.error(
  "some_tag: exception = %s: %s" % [
     exception.inspect,
     Rails.backtrace_cleaner.clean(exception.backtrace)
  ]
)

malclocke

require 'delegate'

class CaseInsensitiveHashWriter < SimpleDelegator
  def []=(key, value)
    return __getobj__[key] unless key.respond_to?(:downcase)
    matched_key = keys.detect do |k|
      k.respond_to?(:downcase) && k.downcase == key.downcase
    end
    if matched_key
      __getobj__[matched_key] = value

malclocke

class Animal
  @@noise = nil

  def speak
    @@noise
  end
end

class Dog < Animal
  @@noise = 'Woof'

malclocke

#!/bin/bash

usage() {
  cat <<EOT
Usage: PAPERTRAIL_API_TOKEN=abc123 $0 directory

Save all papertrail archives to outdir.  Existing files will not be
overwritten if they have the correct filesize.

PAPERTRAIL_API_TOKEN can be found under the 'Me -> Profile' in Papertrail,