#!/bin/sh
# -*- shell-script -*-

[ x"$1" = x-n ] && { TE=echo; shift; } || TE=

e2 () { echo "$@" >&2; }
ee () { e2 "$@"; exit 1; }

run () { e2 "$@"; "$@"; }
execrun () { e2 "$@"; exec "$@"; exit 1; }

necho () { echo "$@" | tr -d \\012; }

# Avoid problems in fc5 with kernel 2.6.18-1.2239.fc5 (etc). tmp.

LD_ASSUME_KERNEL=2.6.9
export LD_ASSUME_KERNEL

ID=`id | sed 's/(.*//;s/.*=//'`

chkroot ()
{
    [ x$ID = x0 -o x"$TE" != x ] && return
    { cut -d: -f2- | sed "s/  *'$/'/g" >&2; } <<.
	: This command requres root access
	: Please run either:
	:    sudo $0 $cmd $@
	:  or
	:    su -c '$0 $cmd $@'
.
    exit 1
}

cmd_readme () # some notes and instructions (FIXME no content yet)
{
    cut -d: -f2- <<EOF
	:
        : FIXME
        :
EOF
}


cmd_start () ## start scratchbox environment
{
    chkroot "$@"
    echo 0 > /proc/sys/kernel/vdso
    /scratchbox/sbin/sbox_ctl start
}

cmd_xephyr () # run Xephyr using SDK_PC version
{
	pfx=/scratchbox/users/${LOGNAME}/targets/SDK_PC/usr
	export LD_LIBRARY_PATH=${pfx}/lib; export LD_LIBRARY_PATH
	exec ${pfx}/bin/Xephyr :2 -host-cursor -screen 800x480x16 -dpi 96 -ac
}

cmd_xvnc () # # run xvnc with suitable args (alternative to xephyr)
{
	rm -f ~tmp/maemovncpw-$USER &
	# Xvnc is in vnc-server package
	Xvnc -geometry 800x480 -dpi 72 -ac :2  -depth 16 \
		-rfbauth /tmp/maemovncpw-$USER &

	{ sleep 1; echo vvnncc; sleep 1; echo vvnncc; sleep 1; } \
		| vncpasswd /tmp/maemovncpw-$USER
	echo
}

cmd_view () # # run vncviewer that connects to xvnc...
{
	# vncviewer is in vnc package
	vncviewer -passwd /tmp/maemovncpw-$USER :2 &

	echo Now, in terminal where you entered $0 login, enter
	echo
	echo ' ' af-sb-init.sh start
	echo
}

cmd_login () ## login
{
	if [ x"`cat /proc/sys/kernel/vdso`" = x1 ]
	then
		ee run ' ' $0 vdso ' ' as root
	fi
	HOME=/home/$USER LANGUAGE=en_GB PAGER=less DISPLAY=:2
	export HOME LANGUAGE PAGER DISPLAY
	execrun /scratchbox/login
}

# --

[ x"$1" = x ] && {
        echo
        echo Usage: $0 ' <command> [args]'
        echo
        echo $0 commands available:
        echo
        sed -n '/^cmd_/ { s/cmd_/ /; s/ () [ -#]*/                            /
                          s/\(.\{11\}\) */\1/p; }' $0
        echo
        echo Commands may be abbreviated down to no ambiguity
        echo
        exit 0
}

cmd=$1; shift

case $cmd in
        d) cmd=diff ;;
esac

cc= cp=
for m in `sed -n 's/^cmd_\([a-z0-9_]*\) (.*/\1/p' $0`
do
        case $m in
                $cmd) cp= cc=$cmd cm=$cmd; break ;;
                $cmd*) cp=$cc; cc="$m $cc"; cm=$m ;;
        esac
done

[ x"$cc" = x ] && { echo $0: $cmd -- command not found.; exit 1; }

[ x"$cp" != x ] && { echo $0: $cmd -- ambiquous command: matches $cc; exit 1; }

cmd=$cm
cmd_$cm "$@"