pulseaudio/setup-pulseaudio

#!/bin/sh

LIST_OF_OSS_APPS="aumix sox"

show_help() {
    echo "setup-pulseaudio [ --enable | --disable | --auto | --status ]"
    echo ""
    echo "Modifies configuration files of some applications for PulseAudio"
    echo "  --enable   Enables PulseAudio"
    echo "  --disable  Disables PulseAudio"
    echo "  --auto     Automatically enables/disables PulseAudio based on configuration"
    echo "  --status   Shows activation state (disabled or enabled) for PulseAudio"
    echo ""
    echo "You need to be root for this command to succeed"
    echo "You may need to re-login for changes to take effect"
    exit 1
}

check_root() {
    id=`id -u`
    if [ "x$id" = "x0" ]; then
	true
    else
	echo "You need to be root in order to enable/disable pulseaudio"
	false
    fi
}

PROFNAME=/etc/profile.d/pulseaudio.sh
CPROFNAME=/etc/profile.d/pulseaudio.csh
pulse_client_conf=/etc/pulse/client.conf.d/50-system.conf

MPLAYER_CONF=/etc/mplayer/mplayer.conf

set_variable () {
    if test -f $PROFNAME &&
	grep -q "export $1"= $PROFNAME; then
	sed -i -e "s|export $1=.*|export $1=$2|g" $PROFNAME
    else
	echo "export $1=$2" >> $PROFNAME
    fi
    if test -f $CPROFNAME &&
	grep -q "setenv $1 " $CPROFNAME; then
	sed -i -e "s|setenv $1 .*|setenv $1 $2|g" $CPROFNAME
    else
	echo "setenv $1 $2" >> $CPROFNAME
    fi
}

delete_variable () {
    if test -f $PROFNAME &&
	grep -q "export $1"= $PROFNAME; then
	sed -i -e "/export $1=.*/d" $PROFNAME
    fi
    if test -f $CPROFNAME &&
	grep -q "setenv $1 " $CPROFNAME; then
	sed -i -e "/setenv $1 .*/d" $CPROFNAME
    fi
}

setup_gconf_vendor() {
    if [ -x /usr/bin/gconftool-2 ]; then
	/usr/bin/gconftool-2 --direct --config-source \
	    xml:readwrite:/etc/gconf/gconf.xml.vendor \
	    "$@"
    fi
}

enable_phonon() {
    echo "Enabling PulseAudio for Phonon..."
    delete_variable PHONON_PULSEAUDIO_DISABLE
}

enable_kmix() {
    echo "Enabling PulseAudio for Kmix..."
    delete_variable KMIX_PULSEAUDIO_DISABLE
}

enable_alsa() {
    echo "Enabling PulseAudio for ALSA..."
    if [ -f /etc/alsa/conf.d/99-pulseaudio-default.conf ]; then
	return 0
    fi
    if [ -f /etc/alsa/conf.d/99-pulseaudio-default.conf.example ]; then
	ln -s 99-pulseaudio-default.conf.example /etc/alsa/conf.d/99-pulseaudio-default.conf
	delete_variable ALSA_CONFIG_PATH
    elif [ -f /usr/share/alsa/conf.d/99-pulseaudio-default.conf.example ]; then
	ln -s /usr/share/alsa/conf.d/99-pulseaudio-default.conf.example /etc/alsa/conf.d/99-pulseaudio-default.conf
	delete_variable ALSA_CONFIG_PATH
    elif [ -f /etc/alsa-pulse.conf ]; then
	set_variable ALSA_CONFIG_PATH /etc/alsa-pulse.conf
    else
	echo "Please install alsa-plugins-pulse package"
	delete_variable ALSA_CONFIG_PATH
    fi
}

enable_libao() {
    echo "Enabling PulseAudio for libao..."
    if test -f /etc/libao.conf; then
	if grep -q "default_driver=pulse" /etc/libao.conf; then
	    echo "Default driver is pulse already in /etc/libao.conf"
	else
	    echo "default_driver=pulse" >> /etc/libao.conf
	fi
    else
	echo "default_driver=pulse" >> /etc/libao.conf
    fi
}

enable_mplayer() {
    echo "Enabling PulseAudio for mplayer..."
    if test -f $MPLAYER_CONF; then
	if grep -q '^ao *= *pulse' $MPLAYER_CONF; then
	    :
	elif grep -q '^ao *=' $MPLAYER_CONF; then
	    sed -i -e 's/^ao *= *\(.*\)$/ao=pulse,\1/g' $MPLAYER_CONF
	else
	    echo "ao=pulse" >> $MPLAYER_CONF
	fi
    fi

    # FIXME: mplayerplug-in uses $HOME/.mplayer/mplayerplug-in.conf
}

enable_speechd() {
    echo "Enabling PulseAudio for speech dispatcher..."
    if test -f /etc/speech-dispatcher/speechd.conf; then
	if grep -q 'AudioOutputMethod' /etc/speech-dispatcher/speechd.conf; then
            sed -i -e "s|^.*AudioOutputMethod .*|AudioOutputMethod \"pulse\"|g" /etc/speech-dispatcher/speechd.conf
	else
            echo "AudioOutputMethod \"pulse\"" >> /etc/speech-dispatcher/speechd.conf
	fi
    fi
}

enable_openal() {
    # nothing to do here. openal-soft is patched to prefer pulse but
    # it won't autostart the daemon.
    return 0
}

enable_oss() {
    echo "Enabling PulseAudio for OSS..."
    for app in $LIST_OF_OSS_APPS; do
	if grep -q "alias $app='padsp $app'" $PROFNAME; then
	    echo "Application $app already setup for PulseAudio"
	else
	    echo "alias $app='padsp $app'" >> $PROFNAME
	fi
    done
}

enable_sdl() {
    echo "Enabling PulseAudio for SDL..."
    # For SDL, we just add an environment variable, so that apps use the PA audio driver
    set_variable SDL_AUDIODRIVER pulse
}

enable_timidity() {
    echo "Enabling PulseAudio for Timidity..."
    # Use esound output for timidity
    if grep -q "alias timidity='timidity -Oe'" $PROFNAME; then
	echo "Timidity already setup for using PulseAudio"
    else
	echo "alias timidity='timidity -Oe'" >> $PROFNAME
    fi
}

enable_xine() {
    #echo "Enabling PulseAudio for Xine..."
    # FIXME: xine uses $HOME/.xine/config
    return 0
}

enable_festival() {
    test -f /etc/festival.scm || return 0
    echo "Enabling PulseAudio for Festival..."
    cat << EOF >> /etc/festival.scm
;;;; Use pulseaudio to output sound
(Parameter.set 'Audio_Command "paplay -n festival \$FILE")
(Parameter.set 'Audio_Method 'Audio_Command)
(Parameter.set 'Audio_Required_Format 'snd)
EOF
}

enable_sox() {
    echo "Enabling PulseAudio for SoX..."
    set_variable AUDIODRIVER pulseaudio
}

enable_gstreamer() {
    # set autoaudiosink/src, which should pick up PA
    echo "Setting auto sink/src for gstreamer"
    setup_gconf_vendor -s -t str \
	/system/gstreamer/0.10/default/audiosink autoaudiosink
    setup_gconf_vendor -s -t str \
	/system/gstreamer/0.10/default/musicaudiosink autoaudiosink
    setup_gconf_vendor -s -t str \
	/system/gstreamer/0.10/default/chataudiosink autoaudiosink
    setup_gconf_vendor -s -t str \
	/system/gstreamer/0.10/default/audiosrc autoaudiosrc
}

enable_qemu () {
    echo "Enabling PulseAudio for QEMU/KVM"
    set_variable QEMU_AUDIO_DRV pa
}

enable_autospawn() {
    test -f /etc/systemd/user/sockets.target.wants/pulseaudio.socket && return
    echo "Enabling PulseAudio autospawn..."
    if grep -q ^autospawn $pulse_client_conf >/dev/null 2>&1; then
	sed -i -e "s|^autospawn.*|autospawn = yes|g" $pulse_client_conf
    else
	echo "autospawn = yes" >> $pulse_client_conf
    fi
}

disable_alsa() {
    echo "Disabling PulseAudio for ALSA..."
    delete_variable ALSA_CONFIG_PATH
    rm -f /etc/alsa/conf.d/99-pulseaudio-default.conf
}

disable_phonon() {
    echo "Disabling PulseAudio for Phonon..."
    set_variable PHONON_PULSEAUDIO_DISABLE 1
}

disable_kmix() {
    echo "Disabling PulseAudio for Kmix..."
    set_variable KMIX_PULSEAUDIO_DISABLE 1
}

disable_libao() {
    if test -f /etc/libao.conf; then
	echo "Disabling PulseAudio for libao..."
	sed -i -e "/default_driver=pulse/d" /etc/libao.conf
    fi
}

disable_mplayer() {
    if test -f $MPLAYER_CONF; then
	echo "Disabling PulseAudio for mplayer..."
	sed -i -e 's/^ao *= *pulse,*/ao=/g' \
		-e 's/^ao *= *$/ao=alsa/g' $MPLAYER_CONF
    fi
}

disable_speechd() {
    echo "Disabling PulseAudio for speech dispatcher..."
    if test -f /etc/speech-dispatcher/speechd.conf; then
	if grep -q 'AudioOutputMethod' /etc/speech-dispatcher/speechd.conf; then
            sed -i -e "s|^.*AudioOutputMethod .*|#AudioOutputMethod \"pulse\"|g" /etc/speech-dispatcher/speechd.conf
	fi
    fi
}

disable_openal() {
    # nothing to do here. openal-soft is patched to prefer pulse but
    # it won't autostart the daemon.
    return 0
}

disable_oss() {
    for app in $LIST_OF_OSS_APPS; do
	sed -i -e "/alias $app='padsp $app'/d" $PROFNAME
    done
}

disable_sdl() {
    echo "Disabling PulseAudio for SDL..."
    delete_variable SDL_AUDIODRIVER
}

disable_timidity() {
    echo "Disabling PulseAudio for Timidity..."
    sed -i -e "/alias timidity='timidity -Oe'/d" $PROFNAME
}

disable_xine() {
    #echo "Disabling PulseAudio for Xine..."
    # FIXME: xine uses $HOME/.xine/config
    return 0
}

disable_festival() {
    test -f /etc/festival.scm || return 0
    echo "Disabling PulseAudio for Festival..."
    /usr/bin/sed --in-place /";;;; Use pulseaudio to output sound"/d /etc/festival.scm
    /usr/bin/sed --in-place /"(Parameter.set 'Audio_Command \"paplay -n festival \$FILE\")"/d /etc/festival.scm
    /usr/bin/sed --in-place /"(Parameter.set 'Audio_Method 'Audio_Command)"/d /etc/festival.scm
    /usr/bin/sed --in-place /"(Parameter.set 'Audio_Required_Format 'snd)"/d /etc/festival.scm
}

disable_sox() {
    echo "Disabling PulseAudio for SoX..."
    set_variable AUDIODRIVER alsa
}

disable_gstreamer() {
    echo "Setting alsasink/src for gstreamer"
    setup_gconf_vendor -s -t str \
	/system/gstreamer/0.10/default/audiosink alsasink
    setup_gconf_vendor -s -t str \
	/system/gstreamer/0.10/default/musicaudiosink alsasink
    setup_gconf_vendor -s -t str \
	/system/gstreamer/0.10/default/chataudiosink alsasink
    setup_gconf_vendor -s -t str \
	/system/gstreamer/0.10/default/audiosrc alsasrc
}

disable_qemu () {
    echo "Clearing QEMU/KVM audio setup"
    delete_variable QEMU_AUDIO_DRV
}

disable_autospawn() {
    test -f /etc/systemd/user/sockets.target.wants/pulseaudio.socket && return
    echo "Disabling PulseAudio autospawn..."
    if grep -q ^autospawn $pulse_client_conf >/dev/null 2>&1; then
	sed -i -e "s|^autospawn.*|autospawn = no|g" $pulse_client_conf
    else
	echo "autospawn = no" >> $pulse_client_conf
    fi
    # kill leftover PA processes
    killall pulseaudio > /dev/null 2>&1
}

enable_all() {
    enable_alsa
    enable_libao
    enable_mplayer
    enable_openal
    enable_oss
    enable_sdl
    enable_timidity
    enable_xine
    enable_festival
    enable_phonon
    enable_kmix
    enable_speechd
    enable_sox
    enable_gstreamer
    enable_qemu
    enable_autospawn
}

disable_all() {
    disable_alsa
    disable_libao
    disable_mplayer
    disable_openal
    disable_oss
    disable_sdl
    disable_timidity
    disable_xine
    disable_festival
    disable_phonon
    disable_kmix
    disable_speechd
    disable_sox
    disable_gstreamer
    disable_qemu
    disable_autospawn
}

case $1 in
    --enable)
	check_root || exit 1
	ENABLE=1
        enable_all
	;;
    --disable)
	check_root || exit 1
	ENABLE=0
        disable_all
	;;
    --auto)
	check_root || exit 1
	if [ -f /etc/sysconfig/sound ]; then
	    . /etc/sysconfig/sound
	fi
	if [ "x$PULSEAUDIO_ENABLE" = "xyes" ]; then
	    enable_all
	elif [ "x$PULSEAUDIO_ENABLE" = "xcustom" ]; then
            echo "Custom configuration detected, doing nothing."
        else
	    disable_all
	fi
	exit 0
	;;
    --status)
	if [ -f /etc/sysconfig/sound ]; then
	    . /etc/sysconfig/sound
	fi
	if [ "x$PULSEAUDIO_ENABLE" = "xyes" ]; then
	    echo "enabled"
	elif [ "x$PULSEAUDIO_ENABLE" = "xcustom" ]; then
            echo "custom configured"
	else
	    echo "disabled"
	fi
	exit 0
	;;
    *)
	show_help
	;;
esac

# Now, update /etc/sysconfig/sound with the PA status
if grep -q PULSEAUDIO_ENABLE /etc/sysconfig/sound; then
    if [  "x$ENABLE" = "x1" ]; then
	sed -i -e "s|PULSEAUDIO_ENABLE=\"no\"|PULSEAUDIO_ENABLE=\"yes\"|g" /etc/sysconfig/sound
    else
	sed -i -e "s|PULSEAUDIO_ENABLE=\"yes\"|PULSEAUDIO_ENABLE=\"no\"|g" /etc/sysconfig/sound
    fi
else
    if [ "x$ENABLE" = "x1" ]; then
	echo "PULSEAUDIO_ENABLE=\"yes\"" >> /etc/sysconfig/sound
    else
	echo "PULSEAUDIO_ENABLE=\"no\"" >> /etc/sysconfig/sound
    fi
fi
exit 0