#!/usr/bin/env ruby

pattern = /(<!--\s*AUTOGEN:pct\s*-->\n)(.*)(\n<!--\s*END:pct\s*-->)/m

readme_contents = File.read('README.md')
new_pct = ARGV[0]
badge = "![](https://img.shields.io/badge/Progress-#{new_pct}%25-orange)"
new_readme_contents = readme_contents.gsub(pattern, %{\\1#{badge}\\3})
puts new_readme_contents
File.write('README.md', new_readme_contents)