From a11b0657e97c0c4bbeeea581c3274b0e206ec36b Mon Sep 17 00:00:00 2001
From: "Glenn Y. Rolland" <glenux@glenux.net>
Date: Wed, 11 Nov 2020 10:53:46 +0100
Subject: [PATCH] scripts: add docs-to-slides script

---
 scripts/docs-to-slides | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100755 scripts/docs-to-slides

diff --git a/scripts/docs-to-slides b/scripts/docs-to-slides
new file mode 100755
index 0000000..cb4e213
--- /dev/null
+++ b/scripts/docs-to-slides
@@ -0,0 +1,24 @@
+#!/usr/bin/ruby
+# vim: set ts=2 sw=2 et:
+# frozen_string_literal: true
+
+require 'fileutils'
+require 'thor'
+
+# Hop
+class D2SCli < Thor
+  desc 'process FILE', 'Process file'
+  def process(file)
+    FileUtils.cp(file, file + '.bak')
+    content = File.read(file)
+    content.gsub!(/<!--\s*.*?_class:\s*chapter\s*.*?-->/m, '')
+    content.gsub!(/^.*images\/background.png.*$/, '')
+    content.gsub!(/^----?\s*$/, '')
+    content.gsub!(/\n\s*\n\s*\n/, "\n\n")
+    File.write(file, content)
+  end
+
+  default_task :process
+end
+
+D2SCli.start(ARGV)