1 files changed, 79 insertions, 0 deletions
diff --git a/src/lib/librelib b/src/lib/librelib
new file mode 100755
index 0000000..2dc9314
--- /dev/null
+++ b/src/lib/librelib
@@ -0,0 +1,79 @@
+#!/usr/bin/env bash
+#   Copyright (c) 2013 by Luke Shumaker <lukeshu@sbcglobal.net>
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+default_libdir=/usr/lib/libretools
+
+if ! type gettext &>/dev/null; then
+	gettext() { echo "$@"; }
+fi
+
+print() {
+	mesg=$1
+	shift
+	printf -- "$(gettext "$mesg")\n" "$@"
+}
+
+prose() {
+	print "$@" | fmt -su
+}
+
+cmd=${0##*/}
+usage() {
+	. libremessages
+	print 'Usage: . $(%s LIBRARY)' "$cmd"
+	print "Finds a shell library file"
+	echo
+	prose "While some libraries can be sourced just by their name because
+	       they are installed in PATH (like libremessages), some are not
+	       installed there (like conf.sh), so a path must be given.
+	       Hardcoding that path is the way of the dark side."
+	echo
+	prose 'By default, it looks for the files in `%s`, but this can be
+	       changed with the environmental variable LIBRETOOLS_LIBDIR.' "$default_libdir"
+	echo
+	print "Example usage:"
+	printf '  . $(%s conf.sh)\n' "$cmd"
+}
+
+main() {
+	if [[ $# != 1 ]]; then
+		usage >&2
+		return 2
+	fi
+	if [[ $1 == '-h' ]]; then
+		usage
+		return 0;
+	fi
+
+	if [[ -z $LIBRETOOLS_LIBDIR ]]; then
+		export LIBRETOOLS_LIBDIR=$default_libdir
+	fi
+
+	lib=$1
+	lib=${lib#libre}
+	lib=${lib%.sh}
+
+	for file in ${lib} libre${lib} ${lib}.sh libre${lib}.sh; do
+		if [[ -f "$LIBRETOOLS_LIBDIR/$file" ]]; then
+			printf '%s\n' "$LIBRETOOLS_LIBDIR/$file"
+			return 0;
+		fi
+	done
+	print '%s: could not find library: %s' "$cmd" "$lib" >> /dev/stderr
+	return 1
+}
+
+main "$@"