showbib

#!/bin/bash
# Usage: showbib [-l|--latex] [BIBFILE_NAME]
# showbib shows a bib file. Problems, if exist, will be displayed. It calls ./python/bibtex_check.py.
# If -l|--latex is present, then showbib interprets the file as a BibLaTeX file; otherwise,
# checkbib will try to decide the type of the input file and check it accordingly; if the type cannot
# the decided, then checkbib interprets it as a BibTeX file.

WEBBROWSER="google-chrome --new-window  --start-maximized "  # The web browser for viewing html

BIBLATEX=0
USER_SPECIFY_LATEX=0
BIBFILE=""

if [[ $# -gt 2 ]]; then
    printf "Usage: showbib [-l|--latex] [BIBFILE_NAME] \n"
    exit 1
fi

# Parse the arguments
while [[ -n "$1" ]]; do
	case "$1" in
	-l|--latex)
        BIBLATEX=1
        USER_SPECIFY_LATEX=1
		;;
	*)
        if [[ -z "$BIBFILE" ]]; then
            BIBFILE="$1"
        fi
        ;;
	esac
	shift
done


# Get the name of the bib file with full path.
# If the input is empty, then use the latest bib file under the current directory.
if [[ -z "$BIBFILE" ]]; then
	BIBFILE=`find ./ -maxdepth 1 -type f -name "*.bib" -print0 | xargs -r -0 ls -1 -t | head -1`
fi
BIBFILE=`readlink -f $BIBFILE`
if [[ -z "${BIBFILE##*/}" ]]; then
    echo ""
	echo "No bib file found."
    echo ""
	exit 2
elif [[ ! -f "$BIBFILE" ]]; then
    echo ""
    echo "$BIBFILE does not exist."
    echo ""
	exit 2
fi

# Decide whether this is a BibLaTeX file or a BibTeX file.
if grep -q "journaltitle\s*=\s*\|date\s*=\s*\|location\s*=\s*\|type\s*=\s*" $BIBFILE ; then
    # This is likely a BibLaTeX file.
    BIBLATEX=1
elif [[ $USER_SPECIFY_LATEX != 1 ]]; then
    # This seems not a BibLaTeX file and the user does not say so.
    BIBLATEX=0
fi

# Get the directory where this script resides
TEXTOOLSDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"

BCPYOUTPUT="bibtex_check.html"
if [[ $BIBLATEX -eq 1 ]] ; then
    BCPY="python3 $TEXTOOLSDIR/python/bibtex_check.py -o $BCPYOUTPUT -l -b"
else
    BCPY="python3 $TEXTOOLSDIR/python/bibtex_check.py -o $BCPYOUTPUT -b"
fi

$BCPY $BIBFILE > /dev/null

$WEBBROWSER bibtex_check.html

exit 0