ohhhhhhhhhhh (exclude linux-extra-rootfs.img build artifact)

CODE/linux/tmp_reset_overlay.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+# Reset the overlay dirs inside an image's rootfs so cp -a injection
+# starts from a clean slate (cp -a never deletes stale files).
+set -Eeuo pipefail
+for img in "$@"; do
+    L=$(losetup --find --show --partscan "$img")
+    sleep 0.3
+    M=$(mktemp -d)
+    mount "${L}p1" "$M"
+    R=$(mktemp -d)
+    mount -o loop "$M/boot/linux-rootfs.img" "$R"
+    X="$R/usr/local/lib/xorg-libs"
+    P="$R/usr/local/lib/plasma-libs"
+    echo "$(basename "$img"): before xorg=$(ls "$X" 2>/dev/null | wc -l) plasma=$(ls "$P" 2>/dev/null | wc -l)"
+    rm -rf "$X" "$P"
+    mkdir -p "$X" "$P"
+    sync
+    echo "$(basename "$img"): reset done"
+    umount "$R"; rmdir "$R"
+    umount "$M"; rmdir "$M"
+    losetup -d "$L"
+done