#!/bin/sh -x

if [ $# -eq 0 ] || [ "$1" = "-h" ]; then
    cat <<EOF
Usage: ${0##*/} FOLDERS

Clean TeX/LaTeX/Texinfo project folders recursively.

First we look for .tex or .texi files, and then we can remove associated
extensions in current folder. We proceed this way so that we do not incidentally
remove files matching these extensions if they are not linked to a TeX file in
any manner.

EOF
    exit
fi

for i ; do
    while read -r FILE; do
        FILE_NOEXT="${FILE##*/}"
        FILE_NOEXT="${FILE_NOEXT%.*}"
        FILE_PATH="${FILE%/*}"
        rm -v $(for j in \
            aux bbl blg cp cps fn glg glo gls idx ilg ind ky lof log maf mt mtc nav out pg snm synctex.gz synctex tns toc tp vr vrs xdy
    do
        echo "$FILE_PATH/$FILE_NOEXT.$j"
        done) 2>/dev/null
    done <<EOF
$(find "$i" -type f \( -name "*.tex" -o -name "*.texi" \) )
EOF
done