require "erb"

task :default => ["packer-manifest.json"]

file "packer-manifest.json" => [
       "gitea.json",
       "scripts/dependencies.sh",
       "scripts/volume.sh",
       "files/gitea.service",
       "files/app.ini",
       "files/certbot-renew.service",
       "files/certbot-renew.timer",
       "scripts/gitea.sh",
       "files/gitea-nginx.conf",
       "scripts/nginx.sh",
       "tmp/do.ini"
     ] do |t|
  sh "packer build gitea.json"
end

file "files/app.ini" => ["templates/app.ini.template"] do |t|
  template = ERB.new(File.read(t.source))
  File.write(t.name, template.result)
end

file "tmp/do.ini" => ["templates/do.ini.template", "tmp"] do |t|
  template = ERB.new(File.read(t.source))
  File.write(t.name, template.result)
  chmod 0600, "tmp/do.ini"
end

directory "tmp"

def env(var)
  ENV[var] || raise("Variable #{var} not found")
end