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#!/bin/sh -e
#
# byobu-launcher - conditionally launch byobu
# Copyright (C) 2010 Canonical Ltd.
#
# Authors: Dustin Kirkland <kirkland@byobu.org>
#
# 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/>.
PKG="byobu"
# Bad things happen if you run byobu, but you don't own your $HOME
# ie, rather than "sudo byobu", you must run "sudo -H byobu"
if [ -O "$HOME" ]; then
[ -r "$HOME/.byoburc" ] && . "$HOME/.byoburc"
[ -z "${BYOBU_PREFIX}" ] && export BYOBU_PREFIX="/usr" || export BYOBU_PREFIX
. "${BYOBU_PREFIX}/lib/${PKG}/include/common"
if [ -e "$BYOBU_CONFIG_DIR/disable-autolaunch" ]; then
false
else
case "$TERM" in
*screen*)
# Handle nesting
if [ -n "$SSH_CONNECTION" ] && [ "$(printf "$SSH_CONNECTION" | awk '{print $1}')" != "$(printf "$SSH_CONNECTION" | awk '{print $3}')" ]; then
# Safeguard against ssh-ing into ourself, which causes an infinite loop
exec $BYOBU_PREFIX/bin/byobu "$@"
else
echo "INFO: Disabling auto-launch of Byobu in this SSH connection, to avoid a potential infinite loop" 1>&2
echo "INFO: You can still run 'byobu' manually at the command line, if you know what you're doing" 1>&2
true
fi
;;
dumb)
# Dumb terminal, don't launch
false
;;
*)
exec $BYOBU_PREFIX/bin/byobu "$@"
;;
esac
fi
fi
false
# vi: syntax=sh ts=4 noexpandtab
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