#!/bin/bash
# Resolve the real location of the live squashfs before Calamares' unpackfs
# module runs, and leave a stable symlink for it to unpack from.
#
# archiso's own initcpio hook unmounts /run/archiso/bootmnt once copytoram has
# copied the image to a tmpfs (/run/archiso/copytoram/airootfs.sfs) — and
# copytoram=auto self-enables on most real hardware (non-optical boot device,
# image under 4 GiB, enough free RAM), not just when explicitly requested. A
# Calamares unpackfs.conf source path hardcoded to /run/archiso/bootmnt/...
# would then point at nothing. Check both locations here, in a real script,
# and hand unpackfs.conf one fixed path that always resolves.
set -uo pipefail

DEST="/run/archiso/resolved-airootfs.sfs"
CANDIDATES=(
    "/run/archiso/copytoram/airootfs.sfs"
    "/run/archiso/bootmnt/arch/x86_64/airootfs.sfs"
)

for c in "${CANDIDATES[@]}"; do
    if [ -f "$c" ]; then
        ln -sf "$c" "$DEST"
        echo "resolved live squashfs: $c -> $DEST"
        exit 0
    fi
done

echo "ERROR: could not find the live squashfs in any known location (checked: ${CANDIDATES[*]})" >&2
exit 1