Allow view template to be HTML

[mynameisnotbruce]

Relaxed treats input based on file extension (.pug vs .html), but previous code always created a temporary file "in.pug"; this could lead to relaxed treating HTML code as PUG code, resulting in errors. The change retains the view template's file extension for the temporary file and removes ".erb" if present.

[mabras]

Hi @igorkasyanchuk,

The gem is not usable with html.erb without this. Do have plan to merge?

Thanks.

[igorkasyanchuk]

I think I'll, but I don't like this change --no-sandbox, I would like to see at configuration option

Can you do it?

[revskill10]

Could we update to Rails 7 ?

[igorkasyanchuk]

@revskill10 if you can help with upgrade it would be great

[revskill10]

Hi @igorkasyanchuk I have to make some changes to make it work, but it's a bit buggy.

def render(&block)
      controller = ActionController::Base.new
      ctx = ActionView::LookupContext.new(ActionController::Base.view_paths)
      view = ActionView::Base.new(ctx, {}, controller)
      params = { file: @file, layout: @layout }
      params = params.merge(locals: @locals) if @locals.present?
      content = view.render(params)
      template = ERB.new(content)
      content = template.result

      logger.debug "RailsPDF ====="
      logger.debug "RailsPDF content:\n#{content}"
      logger.debug "RailsPDF ====="

      begin
        input  = BetterTempfile.new("in.pug")
        output = BetterTempfile.new("out.pdf")

        input.write(content)
        input.flush

        command = "#{RailsPDF.relaxed} #{input.path.to_s} #{output.path.to_s} --basedir / --build-once --no-sandbox"
        stdin, stdout, wait_thr = Open3.popen2e(command, pgroup: true)
        sleep(5)
        pgid = Process.getpgid(wait_thr.pid)
        Process.kill '-TERM', pgid
        logger.debug "RailsPDF ===== #{command}"
        output.rewind
        output.binmode

        data = output.read

        yield(data)
      ensure
        input.try(:close!)
        output.try(:close!)
      end
    end
    ```

1. I need to use ERB to render the template
2. I need to wait and kill child process (even with the --build-once arg, the relaxed process still watch for changes)