#!/bin/sh

set -e

LOCALEGEN=/etc/locale.gen
LOCALES=/usr/share/i18n/locales
USER_LOCALES=/usr/local/share/i18n/locales
if [ -n "$POSIXLY_CORRECT" ]; then
  unset POSIXLY_CORRECT
fi


[ -f $LOCALEGEN ] || exit 0;
[ -s $LOCALEGEN ] || exit 0;

KEEP=
if [ "$1" = '--keep-existing' ]; then
	KEEP=1
fi

if [ -z "$KEEP" ]; then
	# Remove all old locale dir and locale-archive before generating new
	# locale data.
	rm -rf /usr/lib/locale/* || true
fi

umask 022

is_entry_ok() {
  if [ -n "$locale" -a -n "$charset" ] ; then
    true
  else
    echo "error: Bad entry '$locale $charset'"
    false
  fi
}

echo "Generating locales (this might take a while)..."
while read locale charset; do \
	case $locale in \#*) continue;; "") continue;; esac; \
	is_entry_ok || continue
	if [ "$KEEP" ] && PERL_BADLANG=0 perl -MPOSIX -e \
	    'exit 1 unless setlocale(LC_ALL, $ARGV[0])' "$locale"; then
		continue
	fi
	echo -n "  `echo $locale | sed 's/\([^.\@]*\).*/\1/'`"; \
	echo -n ".$charset"; \
	echo -n `echo $locale | sed 's/\([^\@]*\)\(\@.*\)*/\2/'`; \
	echo -n '...'; \
	if [ -f $USER_LOCALES/$locale ] ; then
	    input=$USER_LOCALES/$locale
        elif [ -f $LOCALES/$locale ]; then 
	    input=$locale
        else
	    input=`echo $locale | sed 's/\([^.]*\)[^@]*\(.*\)/\1\2/'`
	    if [ -f $USER_LOCALES/$input ]; then
	        input=$USER_LOCALES/$input
            fi
	fi
	localedef -i $input -c -f $charset -A /usr/share/locale/locale.alias $locale || :; \
	echo ' done'; \
done < $LOCALEGEN
echo "Generation complete."