git.iko.soy/unity8
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unity8/data/unity8-greeter-wrapper
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1#!/bin/sh
2# -*- Mode: sh; indent-tabs-mode: nil; tab-width: 4 -*-
3#
4# Copyright (C) 2011,2013,2016 Canonical Ltd
5#
6# This program is free software: you can redistribute it and/or modify it under
7# the terms of the GNU General Public License as published by the Free Software
8# Foundation, version 3 of the License.
9#
10# See http://www.gnu.org/copyleft/gpl.html the full text of the license.
12# This wrapper merely ensures that init and friends live only as long as this
13# script does. Otherwise, it's very easy for some processes to not notice that
14# the session died. We could try to do this in-process, but we want to do this
15# cleanup even if the greeter aborts.
17trap cleanup TERM EXIT
19cleanup()
21 trap - TERM EXIT
22 # Kill upstart and indicators
23 if [ -n "$INIT_PID" ]; then
24 kill "$INIT_PID"
25 fi
26 if [ -n "$CMD_PID" ]; then
27 kill "$CMD_PID"
28 fi
29 exit 0
32set_greeter_var()
34 export "$1=$2"
35 gdbus call --session --dest org.freedesktop.DBus --object-path /org/freedesktop/DBus --method org.freedesktop.DBus.UpdateActivationEnvironment "{'$1': '$2'}"
36 if [ -n "$INIT_PID" ]; then
37 initctl set-env --global "$1=$2"
38 fi
41SUB_SOCKET=$XDG_RUNTIME_DIR/mir_socket
42rm -f $SUB_SOCKET # clear socket in case we were hard shut down
44echo "DBUS_SESSION_BUS_ADDRESS=${DBUS_SESSION_BUS_ADDRESS}" >"$XDG_RUNTIME_DIR/dbus-session"
46# If touch session script (which sets up grid units and mir variables) is available, use it
47TOUCH_WRAPPER=
48if which ubuntu-touch-session >/dev/null; then
49 TOUCH_WRAPPER=ubuntu-touch-session
50fi
52# Pretend that we're in an ubuntu-touch session, so that indicator-network
53# will start.
54export DESKTOP_SESSION=ubuntu-touch
56# We disable ofono using pulse. It causes problems with racing with the user's
57# pulse. We need to come up with a better long-term fix for this, because we
58# eventually need the greeter to play ringtones for users that aren't logged in.
59set_greeter_var PA_DISABLED 1
61# Normal unity8 sessions are entirely driven by Upstart. But greeters
62# are special. They need access to the file descriptors that lightdm
63# creates for them and don't want to start all the services that a normal
64# session would. So it's inconvenient to live within an upstart session.
65# But... we still want to use Upstart for some services. So launch here.
66MIR_SOCKET=$SUB_SOCKET $TOUCH_WRAPPER upstart --user --no-startup-event &
67INIT_PID=$!
68while [ ! -e "$XDG_RUNTIME_DIR/upstart/sessions/$INIT_PID.session" ]; do sleep 0.1; done
69. "$XDG_RUNTIME_DIR/upstart/sessions/$INIT_PID.session"
70export UPSTART_SESSION
72# Connect upstart to system, but do first command in a loop to avoid any
73# race condition between the session file above being written and upstart being
74# ready to handle requests.
75while ! initctl notify-dbus-address "$DBUS_SESSION_BUS_ADDRESS"; do sleep 0.1; done
76initctl start notify-cgmanager
78# Start any pre-greeter tasks if needed (like wizard)
79initctl emit unity8-greeter-starting
81# Define language here for phone if available. When phone user switches their
82# language, they expect that to affect the greeter too. But the user doesn't
83# have permission to switch system language, only their own. So we notice if
84# the phablet user exists and use their language if so. TODO: talk to design
85# about whether we should switch language on fly as users are selected (this
86# is very hard to do technically).
88# Do this after unity8-greeter-starting, in case a customization upstart job
89# changes language.
90if [ "$(id -u phablet 2>/dev/null)" = "32011" ]; then
91 USER_LANG=$(gdbus call --system --dest org.freedesktop.Accounts --object-path /org/freedesktop/Accounts/User32011 --method org.freedesktop.DBus.Properties.Get org.freedesktop.Accounts.User Language | cut -d\' -f2)
92 if [ -n "$USER_LANG" ]; then
93 set_greeter_var LANGUAGE "$USER_LANG"
94 fi
95 USER_LOCALE=$(gdbus call --system --dest org.freedesktop.Accounts --object-path /org/freedesktop/Accounts/User32011 --method org.freedesktop.DBus.Properties.Get org.freedesktop.Accounts.User FormatsLocale | cut -d\' -f2)
96 if [ -n "$USER_LOCALE" ]; then
97 set_greeter_var LANG "$USER_LOCALE"
98 set_greeter_var LC_ALL "$USER_LOCALE"
99 fi
100fi
102# And finally actually start the greeter
103exec env QT_QPA_PLATFORM=ubuntumirclient MIR_SERVER_FILE=$SUB_SOCKET $TOUCH_WRAPPER $@ &
104CMD_PID=$!
105wait $CMD_PID
106CMD_PID=