Merge pull request #2383 from uberhacker/add-freedos-package

Add freedos package

packages/freedos.rb

+require 'package'
+
+class Freedos < Package
+  description 'FreeDOS is a free DOS-compatible operating system.'
+  homepage 'http://www.freedos.org/'
+  version '1.2'
+  source_url 'http://downloads.sourceforge.net/project/freedos/Kernel/2042/ke2042_86f32.zip'
+  source_sha256 '460a6be669a24223e0b0ff7a92502624eb45d1271a535f345b24d5562b29b467'
+
+  depends_on 'libjpeg'
+  depends_on 'libwayland'
+  depends_on 'hicolor_icon_theme'
+  depends_on 'gtk3'
+  depends_on 'qemu'
+
+  def self.build
+    mb = nil
+    loop do
+      puts 'Enter the drive C: partition size (in MB):'
+      mb = STDIN.gets.chomp.to_i
+      break unless mb < 100
+      puts 'Enter a number greater than or equal to 100.'
+    end
+
+    # See https://opensource.com/article/17/10/run-dos-applications-linux.
+    system "mkdir -p $HOME/dosfiles"
+    system "mkdir -p #{CREW_DEST_DIR}$HOME/dosfiles"
+    system 'wget https://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/distributions/1.2/FD12CD.iso'
+    abort 'Checksum mismatch. :/  Try again.'.lightred unless Digest::SHA256.hexdigest( File.read('FD12CD.iso') ) == '6c7f6aad72ab16c592e879367d1ed463047e3b7c94e1828e1ddadb680d461bc3'
+    system "qemu-img create freedos.img #{mb}M"
+    system "qemu-system-i386 -m 16 -k en-us -rtc base=localtime -soundhw all -device cirrus-vga -display gtk -hda freedos.img -cdrom FD12CD.iso -boot order=d"
+    system "echo '#!/bin/bash' > freedos"
+    system "echo 'qemu-system-i386 -m 16 -k en-us -rtc base=localtime -soundhw all -device cirrus-vga -display gtk -hda $HOME/freedos.img -drive file=fat:rw:$HOME/dosfiles/ -boot order=c' >> freedos"
+  end
+
+  def self.install
+    system "install -Dm755 freedos #{CREW_DEST_PREFIX}/bin/freedos"
+    system "install -Dm644 freedos.img #{CREW_DEST_PREFIX}$HOME/freedos.img"
+    system "install -Dm644 freedos.img $HOME/freedos.img"
+  end
+
+  def self.postinstall
+    puts
+    puts "Type 'freedos' to start.".lightblue
+    puts
+    puts "Add files to $HOME/dosfiles.".lightblue
+    puts
+  end
+end