#!/bin/sh -e

: "${top_srcdir:=$(dirname "$0")/../..}"
podir="${top_srcdir}/po"

# Extract XGETTEXT_OPTIONS from po/Makevars
XGETTEXT_OPTIONS="$(sed -n 's/^[[:space:]]*XGETTEXT_OPTIONS[[:space:]]*=[[:space:]]*\(.*\)/\1/p' \
    "${podir}/Makevars")"

status=0
# For each file in POTFILES, run xgettext and look for warnings
while read -r potfile ; do
    # Strip the spaces and trailing backslash
    potfile="$(echo "$potfile" | sed 's/^[[:space:]]*\([^[:space:]]*\)[[:space:]]*\\\?$/\1/')"

    # $potfile is relative to the po/ directory, $test_potfile is
    # relative to this script's working directory
    test_potfile="${podir}/${potfile}"

    # If the file doesn't exist, try to make it
    if [ ! -f "$test_potfile" ]; then
        make -C "${podir}" "${potfile}" || exit 1
    fi

    xgettext_output="$(xgettext ${XGETTEXT_OPTIONS} -o /dev/null "$test_potfile" 2>&1)" || status=1
    if echo "$xgettext_output" | fgrep -q 'warning:' ; then
        echo "$xgettext_output"
        status=1
    fi
done < "${top_srcdir}/po/POTFILES"

exit "$status"