flash

custom-pkgs/flash-glove80/flash.sh

@@ -0,0 +1,65 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# shellcheck disable=SC2012
+image=$(ls "$HOME"/Downloads/*.uf2 --sort time | head -n1)
+image_mtime=$(stat "$image" --format "%y")
+
+echo "flashing $image, last modified $image_mtime"
+
+read -rp "is this correct? (y/n) "
+if [[ ! $REPLY =~ ^[Yy]$ ]]; then
+  exit 1
+fi
+
+echo "prompting sudo password once to avoid needing to type it again"
+sudo true
+
+wait_until_present() {
+  local file="$1"
+  local side_descr="$2"
+  local keys="$3"
+
+  while [ ! -e "$file" ]; do
+    echo "Glove80 $side_descr not connected, re-start it with $keys pressed"
+    sleep 5
+  done
+
+  echo "$side_descr is connected"
+}
+
+flash_side() {
+  local disk="$1"
+  local side_descr="$2"
+
+  if [ ! -e "$disk" ]; then
+  	echo "$disk is missing, boot the glove80 while pressing PgDn+I"
+	  exit 1
+  fi
+
+  local mountpoint
+  mountpoint=$(mktemp -d)
+
+  echo "mounting $disk at $mountpoint" 
+  sudo mount "$disk" "$mountpoint"
+  echo "copying $image to $side_descr"
+  sudo cp "$image" "$mountpoint/CURRENT.UF2"
+  echo "done flashing $side_descr"
+}
+
+wait_and_flash() {
+  local side_shorthand="$1"
+  local side_descr="$2"
+  local keys="$3"
+  
+  local disk="/dev/disk/by-label/GLV80${side_shorthand}BOOT"
+
+  wait_until_present "$disk" "$side_descr" "$keys"
+  flash_side "$disk" "$side_descr"
+}
+
+wait_and_flash "RH" "right-hand side" "PgDn+I"
+wait_and_flash "LH" "left-hand side" "Magic+E"
+
+echo "done flashing!"