#!/bin/sh
#
# common: common stuff sourced by all scripts
#
# Copyright (C) 2011-2014 Dustin Kirkland
#
# Authors: Dustin Kirkland <[email protected]>
#
# 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, version 3 of the License.
#
# 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/>.

if [ -z "${BYOBU_INCLUDED_LIBS}" ]; then
# Needed to set up $BYOBU_CONFIG_DIR
. "${BYOBU_PREFIX}/lib/${PKG}/include/dirs"

# Find command/type/which
for BYOBU_TEST in "command -v" "type" "which"; do
$BYOBU_TEST >/dev/null 2>&1 && break || true
done

# If the backend is already set (eg. running `byobu-tmux`), do nothing.
if [ -z "${BYOBU_BACKEND}" ]; then
[ -r "/etc/$PKG/backend" ] && . "/etc/$PKG/backend"
[ -r "$BYOBU_CONFIG_DIR/backend" ] && . "$BYOBU_CONFIG_DIR/backend"
# Just in case there's no config file at all
if [ -z "${BYOBU_BACKEND}" ]; then
# New byobu configuration, default to tmux
if $BYOBU_TEST tmux >/dev/null; then
BYOBU_BACKEND="tmux"
elif $BYOBU_TEST screen >/dev/null; then
BYOBU_BACKEND="screen"
else
printf "%s\n" "ERROR: $PKG won't work without tmux or screen installed" 1>&2
fi
fi
fi

# Creating backend cache
[ -d "$BYOBU_RUN_DIR/cache.$BYOBU_BACKEND" ] || mkdir -p "$BYOBU_RUN_DIR/cache.$BYOBU_BACKEND"

. "${BYOBU_PREFIX}/lib/${PKG}/include/shutil"
. "${BYOBU_PREFIX}/lib/${PKG}/include/constants"
get_distro || true
export BYOBU_DISTRO="$_RET"
BYOBU_INCLUDED_LIBS=1
fi