Find outdated dependencies in an XcodeGen-based project

check-outdated-deps.rb

#!/usr/bin/env ruby
# frozen_string_literal: true

require 'colored2'
require 'octokit'
require 'yaml'

if ENV['GITHUB_TOKEN'].nil?
  puts '❗️ GITHUB_TOKEN environment variable is not set!'.red
  puts 'Supply a token from gh CLI by running `GITHUB_TOKEN=$(gh auth token) script/check-outdated-deps.rb`'
  exit 1
end

client = Octokit::Client.new(access_token: ENV['GITHUB_TOKEN'])

def puts_replace_line(text)
  print "\e[1A\e[K" # Move up and clear line
  puts text
end

def puts_bordered(text)
  puts '│'.dark + text
end

# Fetches the latest version of a given repository from either releases or tags
def fetch_latest_version(client, repo_name)
  release = client.latest_release(repo_name)
  release[:tag_name].gsub(/^v/, '')
rescue Octokit::NotFound
  tags = client.tags(repo_name)
  tags.first[:name].gsub(/^v/, '')
end

project = YAML.safe_load_file('project.yml')
has_outdated_package = false
project['packages'].each do |name, package|
  puts "♺ Checking #{name} for latest version...".dark

  if package['url'].nil?
    puts_replace_line "↬ #{name} has no URL, skipping...".dark
    next
  end

  if package['exactVersion'].nil?
    puts_replace_line "↬ #{name} has no exactVersion, skipping...".dark
    next
  end

  repo_name = package['url'].gsub(%r{^https://github.com/}, '').gsub(/\.git$/, '')
  begin
    latest_version_string = fetch_latest_version(client, repo_name)
  rescue StandardError
    puts "⚠ API error occurred while checking #{name} for outdated packages!".red
    puts e
    exit 1
  end

  current_version_string = package['exactVersion']
  latest_version = Gem::Version.new(latest_version_string)
  current_version = Gem::Version.new(current_version_string)

  if latest_version > current_version
    has_outdated_package = true
    compare_link = "https://github.com/#{repo_name}/compare/#{current_version_string}...#{latest_version_string}".blue.underlined

    puts_replace_line "⚠ #{name} is outdated!".red
    puts_bordered "   Current: #{current_version.to_s.bold.red}"
    puts_bordered "    Latest: #{latest_version.to_s.bold.green}"
    puts_bordered "   Compare: #{compare_link}"
  else
    puts_replace_line '✓'.dark.green + " #{name} is up to date!".dark
  end
end

exit 1 if has_outdated_package