clone-heroku

#!/usr/bin/env ruby

require "json"

def heroku_cli_missing?
  result = system("heroku auth:whoami >/dev/null", exception: true)

  !result
end

def fetch_heroku_apps
  IO.popen("heroku apps --json") do |io|
    json = io.read
    io.close
    JSON.parse(json)
  end
end

def clone_code(name, git_url)
  cmd = "git clone #{git_url} #{name}"

  system(cmd)
end

def fetch_backup(name)
  capture = "heroku pg:backups:capture --app=#{name}"
  download = "heroku pg:backups:download --app=#{name}"
  move = "mv latest.dump #{name}/pg-data.dump"
  cmd = [capture, download, move].join(" && ")

  system(cmd)
end

if __FILE__ == $0
  if heroku_cli_missing?
    puts "Could not find `heroku` CLI "
    puts "$ brew install heroku"
    exit -1
  end

  apps = fetch_heroku_apps
  apps.each do |app|
    name, git_url = app.values_at("name", "git_url")
    puts "app: #{name}"

    clone_code(name, git_url)
    fetch_backup(name)
  end

  exit 0
end