heroku_collaborator_audit.rb

#!/usr/bin/env ruby

def parse_app app_text
  app = {}

  current_property = nil
  lines = app_text.split("\n")
  lines.each do |line|
    next if line.start_with? '=== '

    if line =~ /^[A-Z]/
      components = line.split(':')
      current_property = components.shift
      if %w(Addons Collaborators).include? current_property
        app[current_property] = [components.join(':').strip]
      else
        app[current_property] = components.join(':').strip
        current_property = nil
      end
    elsif line.empty?
      current_property = nil
    else
      app[current_property] << line.strip
    end
  end

  app
end

all_apps = `heroku apps --all | grep -v ^= | grep -v '^$' | cut -d ' ' -f 1`.split("\n")
max_length = all_apps.map(&:length).max

puts "Found #{all_apps.length} apps"

report = {}

all_apps.each_with_index do |app_name, index|
  print "\r"
  print "Fetching data for "
  print app_name + ' ' * (max_length - app_name.length)
  print " [#{index + 1} of #{all_apps.length}]"
  STDOUT.flush

  app_text = `heroku apps:info -a #{app_name}`
  app_name = app_text.split("\n").first.gsub(/^=== /, '')
  report[app_name] = parse_app app_text
end

puts
puts

account_projects = {}

report.each do |project, description|
  collaborators = description['Collaborators']
  next unless collaborators

  collaborators.each do |email|
    account_projects[email] ||= []
    account_projects[email] << project
  end
end

account_projects.sort.each do |email, projects|
  spacer = "\n#{' ' * (email.length + 2)}"
  puts "#{email}: #{projects.join spacer}"
end