feat: VirtualBox Guest Additions v7.0.14 (#2)

Previously we only had the ISO inside the VM, but we didn't actually install the tools.

image.pkr.hcl

@@ -29,6 +29,8 @@ source "virtualbox-iso" "tinytapeout_analog_vm" {
   http_directory         = "./http"
   iso_checksum           = "a4acfda10b18da50e2ec50ccaf860d7f20b389df8765611142305c0e911d16fd"
   iso_url                = "https://old-releases.ubuntu.com/releases/22.04/ubuntu-22.04.3-live-server-amd64.iso"
+  guest_additions_url    = "https://download.virtualbox.org/virtualbox/7.0.14/VBoxGuestAdditions_7.0.14.iso"
+  guest_additions_sha256 = "0efbcb9bf4722cb19292ae00eba29587432e918d3b1f70905deb70f7cf78e8ce"
   memory                 = 8192
   gfx_controller         = "vmsvga"
   gfx_vram_size          = 128
@@ -76,6 +78,7 @@ build {
       XSCHEM_VERSION  = "3.4.4"
     }
     scripts = [
+      "scripts/install_virtualbox_tools.sh",
       "scripts/install_klayout.sh",
       "scripts/install_magic.sh",
       "scripts/install_netgen.sh",

scripts/install_virtualbox_tools.sh

@@ -0,0 +1,20 @@
+#! /bin/sh
+
+set -e
+
+ISO_PATH="/home/ttuser/VBoxGuestAdditions.iso"
+MOUNT_PATH="/tmp/vbox_tools_iso"
+
+sudo apt-get install -y build-essential gcc make perl dkms
+
+mkdir -p "$MOUNT_PATH"
+
+sudo mount -t iso9660 -o loop "$ISO_PATH" "$MOUNT_PATH"
+# Exit code 2 is ok, it means the installer was successful
+sudo "$MOUNT_PATH/VBoxLinuxAdditions.run" --nox11 || [ $? -eq 2 ]
+sudo umount $MOUNT_PATH
+
+# Verify that the installation was successful
+sudo /usr/sbin/VBoxService --version
+
+rm -rf $MOUNT_PATH $ISO_PATH