#!/usr/bin/env bash
# pdf2bib-batch -- extract BibTeX from all PDFs in a directory
set -euo pipefail
dir="${1:-.}"
out="${2:-references.bib}"
: > "$out"
for pdf in "$dir"/*.pdf; do
    [ -f "$pdf" ] || continue
    echo "Processing: $(basename "$pdf")" >&2
    bib=$(pdf2bib "$pdf" 2>/dev/null) || continue
    if [ -n "$bib" ]; then
        echo "$bib" >> "$out"
        echo "" >> "$out"
    fi
done
echo "Wrote: $out" >&2