aggregate_shitlists

#!/usr/bin/env ruby

require 'yaml'

def get_inward_dependencies_from(filename, pkg)
  shitlist = YAML.load_file(filename)
  shitlist[pkg]
end

def save_to_file(pkg, aggregate)
  message = <<~MESSAGE
    # Auto-generated by: #{__FILE__}
    #
    # This file contains an aggregated list of dependencies that are not part of the long term plan for #{pkg}
    #
    # This defers from the usual deprecated_references.yml file in that it includes both:
    #
    # 1) outward dependencies (constants not part of #{pkg}'s dependencies being called from inside #{pkg})
    # 2) inward dependencies (constants outside #{pkg} referencing a constant inside #{pkg}
    #
    # This file does NOT get updated by linters. You must run the following command at the root of your project
    # in order to update it:
    #
    #   aggregate_shitlists #{pkg}
    #
  MESSAGE
  File.open("#{pkg}_aggregate_deprecated_references.yml", "w") do |f|
    f.write(message)
    f.write(aggregate.to_yaml)
  end
end

def run(args)
  pkg = args.shift
  root_path = args.shift || "."
  aggregate = []

  outward_deprecations_file = Dir["#{root_path}/**/#{pkg}/deprecated_references.yml"]
  raise unless outward_deprecations_file.size == 1

  puts "Finding deprecated outward dependencies..."
  file = outward_deprecations_file.first
  shitlist = YAML.load_file(file)
  aggregate << { file => shitlist }

  puts "Finding deprecated inward dependencies..."
  inward_deprecations_files = Dir["#{root_path}/**/deprecated_references.yml"]
  inward_deprecations_files.each do |file|
    shitlist = get_inward_dependencies_from(file, pkg)
    aggregate << { file => shitlist } if shitlist
  end

  save_to_file(pkg, aggregate)
end

run(ARGV)