btrfs resolve hardlinks

btrfs-resolve-hardlinks

#!/bin/bash

if [[ ! -e "$1" ]]; then
    echo "\"$1\" - no such file or directory" >&2
    exit 1
fi

resolve_to_absolute() {
    sudo btrfs inspect-internal inode-resolve -v $(stat -c "%i" "$1") $(stat -c "%m" "$1") | tail -n +2
}

abs2rel_lines() {
    tr \\n \\0 | xargs -0 -n 1 relpath
}

if [[ "${1:0:1}" == "/" ]]; then
    resolve_to_absolute "$1"
else
    resolve_to_absolute "$1" | abs2rel_lines
fi