#!/bin/sh

tmpfile="${TMPDIR:-/tmp}/nsxiv_pipe_$$"
trap 'rm -f -- $tmpfile' EXIT

if [ "$#" -eq 0 ]; then
    if [ -t 0 ]; then
        echo "nsxiv-pipe: No arguments provided" >&2; exit 1
    else
        # Consume stdin and put it in the temporal file
        cat > "$tmpfile"
    fi
fi

for arg in "$@"; do
    # if it's a pipe then drain it to $tmpfile
    [ -p "$arg" ] && cat "$arg" > "$tmpfile"
done

if [ -s "$tmpfile" ]; then
    nsxiv -q "$@" "$tmpfile" # -q to silence warnings
else
    nsxiv "$@" # fallback
fi