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{ nsxiv, writers }:
writers.writeDashBin "sxiv" ''
set -efu
tmpfile="''${TMPDIR:-/tmp}/nsxiv_pipe_$$"
trap 'rm -f -- $tmpfile' EXIT
if [ "$#" -eq 0 ]; then
if [ -t 0 ]; then
echo "sxiv: 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
${nsxiv}/bin/nsxiv -q "$@" "$tmpfile" # -q to silence warnings
else
${nsxiv}/bin/nsxiv "$@" # fallback
fi
''
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