lirc 0.9.0-0ubuntu6 / postinst

#!/bin/sh
set -e

check_hardware_conf ()
{
	#Make sure that all variables are there, and also create the file if
	#it is not there
	#local VAR
	for VAR in REMOTE REMOTE_MODULES REMOTE_DRIVER REMOTE_DEVICE REMOTE_SOCKET REMOTE_LIRCD_CONF REMOTE_LIRCD_ARGS TRANSMITTER TRANSMITTER_MODULES TRANSMITTER_DRIVER TRANSMITTER_DEVICE TRANSMITTER_SOCKET TRANSMITTER_LIRCD_CONF TRANSMITTER_LIRCD_ARGS START_LIRCD START_LIRCMD LOAD_MODULES LIRCMD_CONF FORCE_NONINTERACTIVE_RECONFIGURATION
	do
		# Patch provided by Robert Bihlmeyer <robbe@orcus.priv.at>
		# See http://bugs.debian.org/303078
		if ! grep -q "^[ 	]*$VAR\>" /etc/lirc/hardware.conf; then
			echo "$VAR=\"\"" >> /etc/lirc/hardware.conf
		fi
	done
}

Save ()
{
        if [ -f $1 ]; then
                cp $1 $1.old
        fi

	sed -i -e "
		s|^\(REMOTE\)=.*|\1=\"$REMOTE\"|;
		s|^\(REMOTE_DRIVER\)=.*|\1=\"$REMOTE_DRIVER\"|;
		s|^\(REMOTE_MODULES\)=.*|\1=\"$REMOTE_MODULES\"|;
		s|^\(REMOTE_DEVICE\)=.*|\1=\"$REMOTE_DEVICE\"|;
		s|^\(REMOTE_LIRCD_CONF\)=.*|\1=\"$REMOTE_LIRCD_CONF\"|;
		s|^\(TRANSMITTER\)=.*|\1=\"$TRANSMITTER\"|;
		s|^\(TRANSMITTER_DRIVER\)=.*|\1=\"$TRANSMITTER_DRIVER\"|;
		s|^\(TRANSMITTER_MODULES\)=.*|\1=\"$TRANSMITTER_MODULES\"|;
		s|^\(TRANSMITTER_DEVICE\)=.*|\1=\"$TRANSMITTER_DEVICE\"|;
		s|^\(TRANSMITTER_LIRCD_CONF\)=.*|\1=\"$TRANSMITTER_LIRCD_CONF\"|;
		s|^\(START_LIRCD\)=.*|\1=\"$START_LIRCD\"|;
		s|^\(LIRCMD_CONF\)=.*|\1=\"$LIRCMD_CONF\"|;
		s|^\(FORCE_NONINTERACTIVE_RECONFIGURATION\)=.*|\1=\"$FORCE_NONINTERACTIVE_RECONFIGURATION\"|;
		" $1
}

ChooseRemote()
{
	OLDREMOTE="${REMOTE:-None}"
	OLDTRANSMITTER="${TRANSMITTER:-None}"

	#force reconfiguration.  can be set by external applications
	#to true if they want to bypass the normal methods presented
	#to users and instead just parse the file.
	FORCE_NONINTERACTIVE_RECONFIGURATION=`grep "^FORCE_NONINTERACTIVE_RECONFIGURATION=" /etc/lirc/hardware.conf | sed s/\"//g | awk -F "=" '{print $2}'`

	#Present the user with some choices
		#To later explain what this is actually doing without man pages:
		#First, only grab lines with a ;
		#Now, remove all commas from streams
		#Now, Remove all remaining comments or ['s
		#Now, Print the remote name
		#Next, sort the list and remove duplicates
		#Now, Affix a comma and space to all starts of lines
		#Lastly, change the newline to a null character
	REMOTES=`cat /usr/share/lirc/lirc.hwdb /usr/share/lirc/extras/more_remotes.hwdb 2>/dev/null | grep ";" | sed 's/,//g' | awk -F ";" '$0!~/^#|^\[/{print $1}' | sort -u | sed 's/^/,\ /' | tr '\n' '\0'`
	db_subst lirc/remote REMOTES $REMOTES

	TRANSMITTERS=`grep ";" /usr/share/lirc/extras/transmitter.hwdb | sort | sed 's/,//g' | awk -F ";" '$0!~/^#|^\[/{print $1}' | sed 's/^/,\ /' | tr '\n' '\0'`
	db_subst lirc/transmitter TRANSMITTERS $TRANSMITTERS

	db_set lirc/remote "$REMOTE"
	db_set lirc/transmitter "$TRANSMITTER"

	#If we are forcing a reconfigure, then our old remote and new ones are the same
	if [ "$FORCE_NONINTERACTIVE_RECONFIGURATION" != "true" ]; then
		db_input high lirc/remote || true
		db_input high lirc/transmitter || true
		db_go
	fi

	#Populate remote information (remote is our primary device at all times)
	db_get lirc/remote
	REMOTE="${RET}"
	db_get lirc/transmitter
	TRANSMITTER="${RET}"

	SUPPORTED_DRIVERS=`lircd -H help 2>&1 | awk '$0!~/^S|^D/{print $1}' | tr '\n' '\ '`

	if [ "$REMOTE" != "None" ] && [ "$REMOTE" != "Custom" ] && ([ "$OLDREMOTE" != "$REMOTE" ] || [ "$FORCE_NONINTERACTIVE_RECONFIGURATION" = "true" ])
	then
		#To later explain what this is actually doing without man pages:
		#First, only grab lines with a ;
		#Now, remove all commas from streams
		#Lastly, take the last matching entry found (so remotes.hwdb overrides lirc.hwdb)
		REMOTE_LINE=`cat /usr/share/lirc/lirc.hwdb /usr/share/lirc/extras/more_remotes.hwdb 2>/dev/null | sed -n '/;/ { s/,//g; p }' | grep "${REMOTE}" | tail -1`
		#Remove all remaining comments or ['s
		#then print the remote name
		REMOTE_MODULES=`echo $REMOTE_LINE | awk -F ";" '$0!~/^#|^\[/{print $3}'`
		REMOTE_DRIVER=`echo $REMOTE_LINE | awk -F ";" '$0!~/^#|^\[/{print $2}'`
		REMOTE_LIRCD_CONF=`echo $REMOTE_LINE | awk -F ";" '$0!~/^#|^\[/{print $5}'`

		#/dev/input/eventX is a weird case: filter it
		if [ "$REMOTE_LIRCD_CONF" = "<A HREF=\"http://linux.bytesex.org/v4l2/faq.html#lircd\">generic config file for Linux input layer</A>" ]; then
			REMOTE_LIRCD_CONF=""
		fi

		#For atilibusb, we need to blacklist the kernel module
		if [ "$REMOTE_DRIVER" = "atilibusb" ]; then
			BLACKLIST="lirc_atiusb ati_remote"
		elif [ "$REMOTE_DRIVER" = "atiusb" ]; then
			BLACKLIST="ati_remote"
		else
			BLACKLIST=""
		fi

		#lirc.hwdb puts none rather than ;;
		if [ "$REMOTE_MODULES" != "none" ]; then
			#if we have a module in use, don't use a driver too
			REMOTE_DRIVER=""
		else
			REMOTE_MODULES=""
		fi

		#lirc.hwdb puts none rather than ;;
		if [ "$REMOTE_DRIVER" = "none" ]; then
			REMOTE_DRIVER=""
		fi

		#only need to put driver for non kernel module devices
		if ! echo "$SUPPORTED_DRIVERS" | grep "$REMOTE_DRIVER" > /dev/null; then
			REMOTE_DRIVER=""
		fi

		#reset our REMOTE_DEVICE whenever remotes
		#are changed.  Calculated later.
		REMOTE_DEVICE=""

		CONFIG_CHANGED=:
	elif [ "$OLDREMOTE" != "$REMOTE" ] && [ "$REMOTE" = "None" ]; then
		CONFIG_CHANGED=:
		REMOTE_DEVICE=""
		REMOTE_MODULES=""
		REMOTE_DRIVER=""
		REMOTE_LIRCD_CONF=""
	fi

	#If we have a devinput driver, we need
	#to present the user with a way to figure out
	#what device is it
	#This should be ran even if they haven't changed remotes
	if [ "$REMOTE_DRIVER" = "devinput" ]; then
		#present question
		EVENTS=`find /dev/input/* -type d -exec find {} -not -type d -printf ", %p" \;`
		db_subst lirc/dev_input_device EVENTS $EVENTS
		db_input high lirc/dev_input_device || true
		db_go

		#get our answer
		db_get lirc/dev_input_device
		if [ "$RET" != "$REMOTE_DEVICE" ]; then
			REMOTE_DEVICE="$RET"
			CONFIG_CHANGED=:
		fi
	elif [ "$REMOTE_DRIVER" = "dvico" ];then
		#present question
		EVENTS=`ls /dev/usb | sed 's/^/,\ \/dev\/usb\//' | tr '\n' '\0'`
		db_subst lirc/dev_input_device EVENTS $EVENTS
		db_input high lirc/dev_input_device || true
		db_go

		#get our answer
		db_get lirc/dev_input_device
		if [ "$RET" != "$REMOTE_DEVICE" ]; then
			REMOTE_DEVICE="$RET"
			CONFIG_CHANGED=:
		fi
	#otherwise, set our old device in debconf again
	else
		db_set lirc/dev_input_device /dev/lirc0
		db_fset lirc/dev_input_device seen false
	fi

	if [ "$TRANSMITTER" != "None" ] && [ "$TRANSMITTER" != "Custom" ] && ([ "$OLDTRANSMITTER" != "$TRANSMITTER" ] || [ "$FORCE_NONINTERACTIVE_RECONFIGURATION" = "true" ])
	then
		TRANSMITTER_LINE=`sed -n '/;/ { s/,//g; p }' /usr/share/lirc/extras/transmitter.hwdb | grep "${TRANSMITTER}" | tail -1`
		TRANSMITTER_MODULES=`echo $TRANSMITTER_LINE | awk -F ";" '$0!~/^#|^\[/{print $3}'`
		TRANSMITTER_DRIVER=`echo $TRANSMITTER_LINE | awk -F ";" '$0!~/^#|^\[/{print $2}'`
		TRANSMITTER_LIRCD_CONF=`echo $TRANSMITTER_LINE | awk -F ";" '$0!~/^#|^\[/{print $5}'`
		#transmitter.hwdb puts none rather than ;;
		if [ "$TRANSMITTER_MODULES" != "none" ]; then
			#if we have a module in use, don't use a driver too
			TRANSMITTER_DRIVER=""
		else
			TRANSMITTER_MODULES=""
		fi

		#transmitter.hwdb puts none rather than ;;
		if [ "$TRANSMITTER_DRIVER" = "none" ]; then
			TRANSMITTER_DRIVER=""
		fi

		#only need to put driver for non kernel module devices
		if ! echo "$SUPPORTED_DRIVERS" | grep "$TRANSMITTER_DRIVER" > /dev/null; then
			TRANSMITTER_DRIVER=""
		fi

		CONFIG_CHANGED=:
	elif [ "$OLDTRANSMITTER" != "$TRANSMITTER" ] && [ "$TRANSMITTER" = "None" ]
	then
		CONFIG_CHANGED=:
		TRANSMITTER_DEVICE=""
		TRANSMITTER_DRIVER=""
		TRANSMITTER_MODULES=""
		TRANSMITTER_LIRCD_CONF=""
	fi

	#Choose a serial port if we are using serial
	if [ "$REMOTE_MODULES" = "lirc_dev lirc_serial" ] || [ "$TRANSMITTER_MODULES" = "lirc_dev lirc_serial" ]
	then
		db_input high lirc/serialport || true
		db_go
	#if we aren't using serial, then go back to default
	else
		db_set lirc/serialport "/dev/ttyS0"
		db_fset lirc/serialport seen false
	fi

	#Plan to have lircd enabled
	START_LIRCD=true

	#If we have a remote and a transmitter, figure out devices
	if [ "$TRANSMITTER" != "None" ] && [ "$REMOTE" != "None" ]; then
		#Make sure that at least one of these has changed before we make changes
		if [ "$OLDREMOTE" != "$REMOTE" ] || [ "$OLDTRANSMITTER" != "$TRANSMITTER" ]; then
			#if no remote device is defined already
			#and we do use a kernel module
			if [ -z "$REMOTE_DEVICE" ] && [ -n "$REMOTE_MODULES" ]
			then
				REMOTE_DEVICE="/dev/lirc0"
			fi

			#set up our transmitter.
			#if we use the same kernel modules, we use the same device
			#and we should disable transmitter stuff further
			if ([ -n "$TRANSMITTER_MODULES" ] && [ "$TRANSMITTER_MODULES" = "$REMOTE_MODULES" ]) \
			   || ([ -n "$TRANSMITTER_DRIVER" ] && [ "$TRANSMITTER_DRIVER" = "$REMOTE_DRIVER" ])
			then
				TRANSMITTER_DEVICE=""
				TRANSMITTER_DRIVER=""
			#if they aren't the same driver/device, we needed a remote module and we need a transmitter kernel module
			elif [ "$REMOTE_DEVICE" = "/dev/lirc0" ] && [ -n "$TRANSMITTER_MODULES" ]
			then
				TRANSMITTER_DEVICE="/dev/lirc1"
			#if they aren't the same  driver/device, but we didn't need a remote module, but need a transmitter kernel module
			elif [ -n "$TRANSMITTER_MODULES" ]; then
				TRANSMITTER_DEVICE="/dev/lirc0"
			fi
		fi
	#if we have just a transmitter, figure out device
	elif [ "$TRANSMITTER" != "None" ]; then
		#if we need kernel transmitter modules
		if [ -n "$TRANSMITTER_MODULES" ]; then
			TRANSMITTER_DEVICE="/dev/lirc0"
		fi
	#we have just chosen a remote
	elif [ "$REMOTE" != "None" ]; then
		#no remote device is defined already
		#and we need kernel remote modules
		if [ -z "$REMOTE_DEVICE" ] && [ -n "$REMOTE_MODULES" ] ; then
			REMOTE_DEVICE="/dev/lirc0"
		fi
	#if both remote and transmitter are set to none
	else
		#disable lircd
		START_LIRCD=false
	fi
}

Setup_Blacklist()
{
	if [ -n "$BLACKLIST" ]; then
		cat > /etc/modprobe.d/lirc-blacklist.conf <<EOF
#File automatically generated upon lirc install
#Because a module had to be blacklisted. Don't
#Modify by hand, but rather via
#dpkg-reconfigure lirc
EOF
		for item in $BLACKLIST
		do
			echo "blacklist $item" >> /etc/modprobe.d/lirc-blacklist.conf
			if egrep -q '^'"$item"'\ ' /proc/modules; then
				rmmod $item
			fi
		done
	else
		rm -f /etc/modprobe.d/lirc-blacklist.conf
	fi
}

Setup_Serial()
{
	#Move out old config
	if [ -f /etc/serial.conf ]; then
		mv /etc/serial.conf /etc/serial.conf.old
	fi

	#figure out if we have serial modules at all
	if [ "$REMOTE_MODULES" = "lirc_dev lirc_serial" ] || [ "$TRANSMITTER_MODULES" = "lirc_dev lirc_serial" ]; then

		#if we chose ttyS0 or ttyS1, add it to modprobe.d
		db_get lirc/serialport
		SERIAL=$RET
		if [ "$SERIAL" = "/dev/ttyS0" ]; then
			cat > /etc/modprobe.d/lirc-serial.conf <<EOF
#COM1 equivalent, /dev/ttyS0
options lirc_serial irq=4 io=0x3f8
#COM2 equivalent, /dev/ttyS1
#options lirc_serial irq=3 io=0x2f8
EOF
		elif [ "$SERIAL" = "/dev/ttyS1" ]; then
			cat > /etc/modprobe.d/lirc-serial.conf <<EOF
#COM1 equivalent, /dev/ttyS0
#options lirc_serial irq=4 io=0x3f8
#COM2 equivalent, /dev/ttyS1
options lirc_serial irq=3 io=0x2f8
EOF
		fi
		cat > /etc/serial.conf << EOF
$SERIAL uart none
EOF
		#reload setserial to turn off serial port
		invoke-rc.d etc-setserial restart
	else
		rm -f /etc/modprobe.d/lirc-serial.conf
	fi
}

setup_lircd_conf()
{
	#if we have an existing file, back it up
	if [ -f "/etc/lirc/lircd.conf" ]; then
		mv /etc/lirc/lircd.conf /etc/lirc/lircd.conf.dpkg-old
	fi

	#Add a header to the lircd.conf
	cat >> /etc/lirc/lircd.conf << EOF
#This configuration has been automatically generated via
#the Ubuntu LIRC package maintainer scripts.
#
#It includes the default configuration for the remote and/or
#transmitter that you have selected during package installation.
#
#Feel free to add any custom remotes to the configuration
#via additional include directives or below the existing
#Ubuntu include directives from your selected remote and/or
#transmitter.

EOF
	#if we have a remote, include its config
	if [ -f "/usr/share/lirc/extras/more_remotes/$REMOTE_LIRCD_CONF" ]
	then
		cat >> /etc/lirc/lircd.conf <<EOF
#Configuration for the $REMOTE remote:
include "/usr/share/lirc/extras/more_remotes/$REMOTE_LIRCD_CONF"

EOF
	elif [ -f "/usr/share/lirc/remotes/$REMOTE_LIRCD_CONF" ]
	then
		cat >> /etc/lirc/lircd.conf <<EOF
#Configuration for the $REMOTE remote:
include "/usr/share/lirc/remotes/$REMOTE_LIRCD_CONF"

EOF
	elif [ -f "$REMOTE_LIRCD_CONF" ]; then
cat >> /etc/lirc/lircd.conf <<EOF
#Configuration for the $REMOTE remote:
include "$REMOTE_LIRCD_CONF"

EOF
	elif [ "$REMOTE" != "None" ]; then
		cat >> /etc/lirc/lircd.conf <<EOF
#No default remote configuration was included for $REMOTE
#You will need to include your own custom configuration for
#this remote, and file a bug at https://bugs.launchpad.net/ubuntu/+source/lirc/+filebug

EOF
	fi

	#if we have a transmitter, include its config
	if [ -f "/usr/share/lirc/extras/transmitters/$TRANSMITTER_LIRCD_CONF" ]
	then
		cat >> /etc/lirc/lircd.conf <<EOF
#Configuration for the $TRANSMITTER transmitter:
include "/usr/share/lirc/extras/transmitters/$TRANSMITTER_LIRCD_CONF"
EOF
	elif [ -f "$TRANSMITTER_LIRCD_CONF" ]; then
cat >> /etc/lirc/lircd.conf <<EOF
#Configuration for the $TRANSMITTER transmitter:
include "$TRANSMITTER_LIRCD_CONF"

EOF
	elif [ "$TRANSMITTER" != "None" ]; then
		cat >> /etc/lirc/lircd.conf <<EOF
#No default remote configuration was included for $TRANSMITTER
#You will need to include your own custom configuration for
#this transmitter, and file a bug at https://bugs.launchpad.net/ubuntu/+source/lirc/+filebug

EOF
	fi
}

unload_modules()
{
    KERNEL=`uname -r`
    #unload all modules (but lirc_dev last)
    for item in `ls /lib/modules/$KERNEL/kernel/drivers/staging/media/lirc` lirc_dev
    do
        if egrep -q '^'"$item"'\ ' /proc/modules; then
            rmmod $item 2>/dev/null || true
        fi
    done
}

. /usr/share/debconf/confmodule

if [ "$1" = "configure" ]; then

	CONFIG_CHANGED=false

	if dpkg --compare-versions "$2" lt-nl "0.9.0-0ubuntu5"; then
		rm -f /etc/modprobe.d/lirc-blacklist
	fi

	[ -x /sbin/udevd ] && invoke-rc.d udev reload >&2

	#unload any old modules before starting
	unload_modules

	check_hardware_conf
	. /etc/lirc/hardware.conf

	#parse the lirc.hwdb to find our remote
	ChooseRemote

	Save /etc/lirc/hardware.conf

	#Prepare the blacklisting for necessary modules
	Setup_Blacklist

	#Setup serial module
	Setup_Serial

	# If we don't have a valid lircd.conf try to get one
	if [ ! -f /etc/lirc/lircd.conf ] \
		|| grep -q "^#UNCONFIGURED" /etc/lirc/lircd.conf \
		|| $CONFIG_CHANGED ;then
		setup_lircd_conf

	fi
	# If we don't have a valid lircmd.conf try to get one
	if [ ! -f /etc/lirc/lircmd.conf ] \
		|| grep -q "^#UNCONFIGURED" /etc/lirc/lircmd.conf ;then

		# if there is a misplaced config file it is ok to move it to
		# the right place
		if [ -f /etc/lircmd.conf ];then
			echo moving /etc/lircmd.conf to /etc/lirc/
			mv /etc/lircmd.conf /etc/lirc/

		# we don't restore the file unless the user is (re)configuring
		elif $CONFIG_CHANGED \
			&& [ -f "/usr/share/lirc/extras/more_remotes/$RET" ];then
			echo trying default lircmd.conf
			cp /usr/share/lirc/extras/more_remotes/$RET \
				/etc/lirc/lircmd.conf
		elif $CONFIG_CHANGED \
			&& [ -f "/usr/share/lirc/remotes/$RET" ];then
			echo trying default lircmd.conf
			cp /usr/share/lirc/remotes/$RET \
				/etc/lirc/lircmd.conf
		fi
	fi
fi


db_stop

# Automatically added by dh_installinit
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ]; then
	if [ -x "/etc/init.d/lirc" ]; then
		update-rc.d lirc defaults 19 >/dev/null
	fi
	if [ -x "/etc/init.d/lirc" ] || [ -e "/etc/init/lirc.conf" ]; then
		invoke-rc.d lirc start || exit $?
	fi
fi
# End automatically added section
# Automatically added by dh_installudev
if [ "$1" = configure ]; then
	if [ -e "/etc/udev/rules.d/85_lirc.rules" ]; then
		echo "Preserving user changes to /etc/udev/rules.d/85-lirc.rules ..."
		if [ -e "/etc/udev/rules.d/85-lirc.rules" ]; then
			mv -f "/etc/udev/rules.d/85-lirc.rules" "/etc/udev/rules.d/85-lirc.rules.dpkg-new"
		fi
		mv -f "/etc/udev/rules.d/85_lirc.rules" "/etc/udev/rules.d/85-lirc.rules"
	fi
fi
# End automatically added section