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#!/bin/sh -e
#
# byobu-launch - call the launcher if we're in an interactive shell
# 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/>.
# 1) Prevent recursion, and multiple sourcing of profiles with the BYOBU_SOURCED_PROFILE environment variable.
# 2) Respect environment variables (LC_BYOBU and BYOBU_DISABLE) passable over SSH to disable
# Byobu launch. This puts that configurability on the SSH client,
# in addition to the server.
# To use over SSH, your /etc/ssh/sshd_config and /etc/ssh/ssh_config
# must pass this variable with AcceptEnv and SendEnv.
# Note that LC_* are passed by default on Debian/Ubuntu, we'll optionally
# support LC_BYOBU=0
# And in your local bashrc:
# $HOME/.bashrc: export LC_BYOBU=0
# or edit your sshd_config, ssh_config, and set:
# $HOME/.bashrc: export BYOBU_DISABLE=1
_tty=$(tty)
if [ "${_tty#/dev/ttyS}" != "$_tty" ] && [ "${_tty#/dev/ttyAMA}" != "$_tty" ]; then
# Don't autolaunch byobu on serial consoles
# You can certainly run 'byobu' manually, though
echo
echo "INFO: Disabling auto-launch of Byobu on this serial console"
echo "INFO: You can still run 'byobu' manually at the command line"
echo
elif [ "$BYOBU_SOURCED_PROFILE" != "1" ] && [ "$LC_BYOBU" != "0" ] && [ "$BYOBU_DISABLE" != "1" ] && [ -O "$HOME" ]; then
unset _tty
BYOBU_SOURCED_PROFILE=1
PKG="byobu"
[ -r "$HOME/.byoburc" ] && . "$HOME/.byoburc"
[ -z "${BYOBU_PREFIX}" ] && export BYOBU_PREFIX="/usr" || export BYOBU_PREFIX
. "${BYOBU_PREFIX}/lib/${PKG}/include/common"
# Ensure that autolaunch is not explicitly disabled
if [ ! -r "$BYOBU_CONFIG_DIR/disable-autolaunch" ]; then
case "$-" in
*i*)
# Attempt to merge shell history across sessions/windows (works with some exceptions)
for i in shopt setopt; do
if eval $BYOBU_TEST $i >/dev/null; then
case $i in
shopt) $i -s histappend || true ;;
setopt) $i appendhistory || true ;;
esac
fi
done
[ -n "$PROMPT_COMMAND" ] && PROMPT_COMMAND="history -a;history -r;$PROMPT_COMMAND" || PROMPT_COMMAND="history -a;history -r"
# Source profile, if necessary
[ -z "$_byobu_sourced" ] && [ -r "$HOME/.profile" ] && . "$HOME/.profile"
if byobu-launcher "$@" ; then
# Wait very briefly for the no-logout flag to get written?
sleep 0.1
if [ -e "$BYOBU_CONFIG_DIR/no-logout-on-detach" ] || [ -e "$BYOBU_RUN_DIR/no-logout" ]; then
# The user does not want to logout on byobu detach
rm -f "$BYOBU_RUN_DIR/no-logout" # Remove one-time no-logout flag, if it exists
true
else
exit 0
fi
fi
;;
esac
fi
fi
unset _tty
true
# vi: syntax=sh ts=4 noexpandtab
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