mirror of
https://github.com/LukeSmithxyz/voidrice.git
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72 lines
1.9 KiB
Bash
Executable File
72 lines
1.9 KiB
Bash
Executable File
#!/bin/sh
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BIB_FILE="${HOME}/latex/uni.bib"
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[ -f "${BIB_FILE}" ] || BIB_FILE="${2:-$(find "${HOME}" -path "${HOME}/.*" \
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-prune -o -type "f" -name "*.bib" -print -quit)}"
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{ [ -f "${BIB_FILE}" ] || [ "${2}" ]; } || {
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printf "%s\n" "Create a .bib file or provide as \$2." && exit "1"
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}
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filter() {
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sed -n -E 's/.*((DOI|doi)((\.(org))?\/?|:? *))([^: ]+[^ .]).*/\6/p; T; q'
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}
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fpdf() {
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pdf="${1}"
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doi="$(pdfinfo "${pdf}" 2> "/dev/null" | filter)"
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[ "${doi}" ] || doi="$(pdftotext -q -l "2" "${pdf}" - 2> "/dev/null" | filter)"
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[ "${doi}" ] || printf "%s\n" "No DOI found for PDF: ${pdf}" >&2
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printf "%s\n" "${doi}"
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}
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arrange() {
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sed 's/\}, /\},\n /g
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s/, /,\n /
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s/ }/\n}/
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s/,\s*pages=/,\n\tpages=/' |
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sed '1s/^ *//
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1s/[0-9]*\([0-9]\{2\}\)/\1/
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1s/_//
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1s/.*/\L&/
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s/.*=/\L&/
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s/=/ = /'
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}
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doi2bib() {
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doi="${1#doi:}"
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url="https://api.crossref.org/works/${doi}/transform/application/x-bibtex"
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entry="$(curl -kLsS --no-fail "${url}" | arrange)"
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red='\033[0;31m'
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reset='\033[0m'
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printf "${red}%s${reset}\n" "${entry}"
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[ "${entry%"${entry#?}"}" != "@" ] && {
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printf "%s\n" "Failed to fetch bibtex entry for DOI: ${doi}"
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return "1"
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}
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grep -iFq "doi = {${doi}}" "${BIB_FILE}" 2> "/dev/null" && {
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printf "%s\n" "Bibtex entry for DOI: ${doi} already exists in the file."
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} || {
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[ -s "${BIB_FILE}" ] && printf "\n" >> "${BIB_FILE}"
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printf "%s\n" "${entry}" >> "${BIB_FILE}"
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printf "%s\n" "Added bibtex entry for DOI: ${doi}"
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}
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}
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[ "${1}" ] || {
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printf "%s\n" "Give either a pdf file or a DOI or a directory path that has PDFs as an argument."
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exit "1"
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}
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[ -f "${1}" ] && doi="$(fpdf "${1}")" && doi2bib "${doi}" && exit "0"
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[ -d "${1}" ] && for i in "${1}"/*.pdf; do doi="$(fpdf "${i}")" && doi2bib "${doi}"; done && exit "0"
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doi="$(printf "%s\n" "${1}" | filter)" && doi2bib "${doi}"
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