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#!/usr/bin/env bash
set -euo pipefail
BIB="${BIB:-/home/lukasz/thesis_main/05_thesis/bibliography.bib}"
DMENU="${DMENU:-dmenu -i -l 20 -p Citekey}"
CLIP="${CLIP:-xclip -selection clipboard}"
if [[ ! -r "$BIB" ]]; then
printf "ERROR: cannot read %s\n" "$BIB" >&2
exit 1
fi
# Build menu lines: "type<TAB>citekey"
choices="$(
rg -n '^\@(\w+)\{([^,]+),' "$BIB" \
| sed -E 's/^[0-9]+:\@(\w+)\{([^,]+),/\1\t\2/' \
| sort -u
)"
picked="$(printf "%s\n" "$choices" | eval "$DMENU" || true)"
[[ -z "$picked" ]] && exit 0
key="$(printf "%s" "$picked" | awk -F'\t' '{print $2}')"
[[ -z "$key" ]] && exit 0
printf "[@%s]" "$key" | eval "$CLIP"
printf "Copied: [@%s]\n" "$key" >&2
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