From ebc83ebacff3e6940fdec9cbc2548c312a61ee28 Mon Sep 17 00:00:00 2001
From: nqvrg <66185596+nqvrg@users.noreply.github.com>
Date: Thu, 24 Feb 2022 23:31:23 +0100
Subject: [PATCH] Add FreeDOS support (#374)

* Add support for FreeDOS 1.2 to quickget

* Add support for freedos guests to quickemu

* Add support for FreeDOS 1.3 to quickget

* Force qemu to keep booting from cd after formatting disk

* Adjust VM settings

* Refactor FreeDOS to use create_vm

* Add FreeDOS to README

* Add unzip to README as a dependency
---
 README.md |  4 +++-
 quickemu  | 10 +++++++---
 quickget  | 45 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 55 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 03b17a4..7d948cf 100644
--- a/README.md
+++ b/README.md
@@ -86,6 +86,7 @@ Requirements
 -   [xdg-user-dirs](https://www.freedesktop.org/wiki/Software/xdg-user-dirs/)
 -   [xrandr](https://gitlab.freedesktop.org/xorg/app/xrandr)
 -   [zsync](http://zsync.moria.org.uk/)
+-   [unzip](http://www.info-zip.org/UnZip.html)
 
 Usage
 =====
@@ -215,10 +216,11 @@ Other Operating Systems
 -   `cachyos` (CachyOS)
 -   `debian` (Debian)
 -   `devuan` (Devuan)
-    `dragonflybsd` (DragonFlyBSD)
+-    `dragonflybsd` (DragonFlyBSD)
 -   `elementary` (elementary OS)
 -   `fedora` (Fedora)
 -   `freebsd` (FreeBSD)
+-    `freedos` (FreeDOS)
 -   `garuda` (Garuda Linux)
 -   `gentoo` (Gentoo)
 -   `ghostbsd` (GhostBSD)
diff --git a/quickemu b/quickemu
index 1a97990..49655d4 100755
--- a/quickemu
+++ b/quickemu
@@ -463,7 +463,7 @@ function vm_boot() {
 
   # Make any OS specific adjustments
   case ${guest_os} in
-    *bsd|haiku|linux)
+    *bsd|haiku|freedos|linux)
       CPU="-cpu host,kvm=on"
       if [ "${HOST_CPU_VENDOR}" == "AuthenticAMD" ]; then
         CPU="${CPU},topoext"
@@ -471,7 +471,7 @@ function vm_boot() {
 
       if [ "${guest_os}" == "freebsd" ] || [ "${guest_os}" == "ghostbsd" ]; then
         MOUSE="usb-mouse"
-      elif [ "${guest_os}" == "haiku" ]; then
+      elif [ "${guest_os}" == "haiku" ] || [ "${guest_os}" == "freedos" ]; then
         MACHINE_TYPE="pc"
         NET_DEVICE="rtl8139"
       fi
@@ -933,7 +933,11 @@ function vm_boot() {
     args+=(-drive media=cdrom,index=1,file="${fixed_iso}")
   fi
 
-  if [ -n "${iso}" ] && [ "${guest_os}" == "kolibrios" ]; then
+  if [ -n "{iso}" ] && [ "${guest_os}" == "freedos" ]; then
+    # FreeDOS reboots after partitioning the disk, and QEMU tries to boot from disk after first restart
+    # This flag sets the boot order to cdrom,disk. It will persist until powering down the VM
+    args+=(-boot order=dc)
+  elif [ -n "${iso}" ] && [ "${guest_os}" == "kolibrios" ]; then
     # Since there is bug (probably) in KolibriOS: cdrom indexes 0 or 1 make system show an extra unexisting iso, so we use index=2
     # shellcheck disable=SC2054
     args+=(-drive media=cdrom,index=2,file="${iso}")
diff --git a/quickget b/quickget
index f467270..ba66956 100755
--- a/quickget
+++ b/quickget
@@ -39,6 +39,7 @@ function pretty_name() {
     dragonflybsd)       PRETTY_NAME="DragonFlyBSD";;
     elementary)         PRETTY_NAME="elementary OS";;
     freebsd)            PRETTY_NAME="FreeBSD";;
+    freedos)            PRETTY_NAME="FreeDOS";;
     garuda)             PRETTY_NAME="Garuda Linux";;
     ghostbsd)           PRETTY_NAME="GhostBSD";;
     kdeneon)            PRETTY_NAME="KDE Neon";;
@@ -166,6 +167,7 @@ function os_support() {
     elementary \
     fedora \
     freebsd \
+    freedos \
     garuda \
     gentoo \
     ghostbsd \
@@ -283,6 +285,11 @@ function editions_freebsd(){
     echo disc1 dvd1
 }
 
+function releases_freedos() {
+    echo 1.2 \
+         1.3
+}
+
 function releases_garuda() {
     echo 220131
 }
@@ -657,6 +664,9 @@ function make_vm_config() {
         haiku)
             GUEST="haiku"
             IMAGE_TYPE="iso";;
+        freedos)
+            GUEST="freedos"
+            IMAGE_TYPE="iso";;
         kolibrios)
             GUEST="kolibrios"
             IMAGE_TYPE="iso";;
@@ -698,6 +708,11 @@ EOF
         case ${OS} in
           alma|oraclelinux|rockylinux) echo "disk_size=\"32G\"" >> "${CONF_FILE}";;
           dragonflybsd|haiku|openbsd|netbsd|slackware|tails) echo "boot=\"legacy\"" >> "${CONF_FILE}";;
+          freedos)
+            echo "boot=\"legacy\"" >> "${CONF_FILE}"
+            echo "disk_size=\"4G\"" >> "${CONF_FILE}"
+            echo "ram=\"256M\"" >> "${CONF_FILE}"
+            ;;
           kolibrios)
             echo "boot=\"legacy\"" >> "${CONF_FILE}"
             echo "disk_size=\"2G\"" >> "${CONF_FILE}"
@@ -875,6 +890,28 @@ function get_freebsd() {
     echo "${URL}/${ISO} ${HASH}"
 }
 
+function get_freedos() {
+    local HASH=""
+    local ISO=""
+    local URL=""
+
+    URL="http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/distributions/${RELEASE}/official"
+
+    case $RELEASE in
+        1.2)
+          ISO="FD12CD.iso"
+          HASH=$(wget -q -O- "${URL}/FD12.sha" | grep "${ISO}" | cut -d' ' -f1)
+          ;;
+        1.3)
+          ISO="FD13-LiveCD.zip"
+          HASH=$(wget -q -O- "${URL}/verify.txt" | grep -A 8 "sha256sum" | \
+            grep "${ISO}" | cut -d' ' -f1)
+          ;;
+    esac
+
+    echo "${URL}/${ISO} ${HASH}"
+}
+
 function get_garuda() {
     local EDITION="${1:-}"
     local HASH=""
@@ -1657,13 +1694,21 @@ create_vm() {
     local URL="${URL_HASH[0]}"
     local HASH="${URL_HASH[1]}"
     local ISO="${URL##*/}"
+
     #echo "${URL}"
     #echo "${ISO}"
     #echo "${HASH}"
     web_get "${URL}" "${VM_PATH}"
+
     if [ -n "${HASH}" ]; then
       check_hash "${ISO}" "${HASH}"
     fi
+
+    if [ ${OS} == "freedos" ] && [[ $ISO =~ ".zip" ]]; then
+        unzip ${VM_PATH}/${ISO} -d ${VM_PATH}
+        ISO=$(ls ${VM_PATH} | grep -i '.iso')
+    fi
+
     make_vm_config "${ISO}"
 }