Clones a GitHub repository locally, and then deletes it from GitHub. Useful for cleaning up no-longer-needed private repos. Usage: archive-github OWNER REPO_NAME

archive-github.rb

#!/usr/bin/env ruby
#
# archive-github
#
# Author: Rob Miller <r@robm.me.uk>
#
# Clones a GitHub repository locally, and then deletes it from GitHub.
# Useful for cleaning up no-longer-needed private repos.
#
# Assumes you have an OAuth token stored in an environment variable
# called GITHUB_ARCHIVE_KEY. This token needs to have the "delete_repo",
# "public_repo", and "repo" privileges.
#
# Usage:
#
#   GITHUB_ARCHIVE_KEY="abc123abc123" archive-github OWNER REPO_NAME

require "net/http"
require "json"

def api_response(request)
  http = Net::HTTP.new("api.github.com", 443)
  http.use_ssl = true

  request["Accept"] = "application/vnd.github.v3+json"
  request["Authorization"] = "token #{API_KEY}"

  response = http.request(request)

  unless response.is_a?(Net::HTTPSuccess)
    $stderr.puts "API request to GitHub failed"
    exit 10
  end

  if response.body
    JSON.parse(response.body)
  else
    true
  end
end

API_KEY = ENV.fetch("GITHUB_ARCHIVE_KEY").freeze
unless API_KEY.length > 0
  $stderr.puts "Environment variable GITHUB_ARCHIVE_KEY must be set"
  exit 1
end

owner, slug = ARGV[0], ARGV[1]
unless owner && slug
  $stderr.puts "Usage: #{$0} OWNER REPOSITORY"
  exit 2
end

puts "Looking up repository on GitHub..."

request = Net::HTTP::Get.new("/repos/#{owner}/#{slug}")
repo_info = api_response(request)

puts "Cloning repository..."

fork do
  exec "git", "clone", repo_info["ssh_url"]
end

Process.wait

unless $?.success?
  $stderr.puts "Couldn't clone the repo"
  exit 3
end

puts "Deleting repository from GitHub..."

request = Net::HTTP::Delete.new("/repos/#{owner}/#{slug}")
api_response(request)

puts "Done."