#!/bin/sh

set -e

[ "$#" -gt "0" ] && cd "$1"

tmpdir=$(mktemp -d)
cleanup()
{
    if [ -n "$tmpdir" ]; then
        rm -r "$tmpdir"
    fi
}

for f in $(find -name "*.tex"); do
    # Only main tex files are interesting
    grep -q "\documentclass" "$f" || continue

    pushd . > /dev/null
    cd $(dirname $f)

    if ! pdflatex -output-directory "$tmpdir" $(basename $f) < /dev/null > /dev/null; then
        popd
        echo >&2 "pdflatex failed on '$f'."
        cleanup
        exit 1
    fi
    popd > /dev/null
done

cleanup