#! /bin/sh
#############################################################################

#
# Generate the vendor/product menu entries for the top level config
#
# davidm@snapgear.com
# gerg@snapgear.com
#

#############################################################################

fix_name()
{
	echo $1 | tr '[\-\.\/\+a-z]' '[____A-Z]'
}

echo_separator()
{
	echo "##############################################################"
	echo
}

default_vendor()
{
	if [ -f config/vendor-default ] ; then
		fix_name "`cat config/vendor-default`"
	else
		fix_name AcceleratedConcepts
	fi
}

#############################################################################

echo "mainmenu \"Embedded Linux Configuration\""
echo
echo "config DISTVERSION"
echo "	string"
echo "	default 4.0"
echo

#
# Figure out the vendor/products dynamically, allows people to add there
# own without messin with the config.in file
#
echo "menu \"Vendor/Product Selection\""
echo
echo "comment \"Select the Vendor you wish to target\""
echo
echo "choice"
echo "	prompt \"Vendor\""
echo "	default DEFAULTS_`default_vendor`"
echo

pfile=/tmp/products.$$

trap "rm -f $pfile; exit 1" 1 2 3 15

find vendors -mindepth 1 -maxdepth 1 -type d -print | \
		sed -e 's?^vendors/??' | \
		(sort; echo "END") | while read v
do
	[ "$v" = "config" ] && continue
	[ "$v" = END ] && break
	fv=
	find vendors/$v -name config.arch -print | \
		sed -e 's?^vendors/??' -e 's?/[^/]*$??' -e 's?/? ?g' | \
		(sort; echo "END END END END") | while read v p junk
	do
		[ "$fv" -a "$v" = END ] && (echo "endchoice"; echo) >> $pfile
		[ "$v" = END ] && break
		pv="`fix_name ${p}`"
		if [ -z "$fv" ]; then
			fv="`fix_name ${v}`"

			echo "config DEFAULTS_${fv}"
			echo "  bool \"${v}\""
			echo

			echo_separator >> $pfile
			echo "choice" >> $pfile
			echo "	prompt \"${v} Products\"" >> $pfile
			echo "	depends on DEFAULTS_${fv}" >> $pfile
			echo "	default DEFAULTS_${fv}_${pv}" >> $pfile
			echo >> $pfile
		fi

		echo "config DEFAULTS_${fv}_${pv}" >> $pfile
		echo "	bool \"${p}\"" >> $pfile
		echo >> $pfile
	done
done

echo "endchoice"
echo
echo "config VENDOR"
echo "	string"
echo
echo_separator
echo "comment \"Select the Product you wish to target\""
echo

cat $pfile
rm -f $pfile

echo "endmenu"
echo
echo "config PRODUCT"
echo "	string"
echo

echo_separator

#############################################################################

echo "menu \"Kernel/Library/Defaults Selection\""
echo

#
# Which kernel do they want,  if only one then just set it,  I don't
# expect an explosion of kernels just yet ;-)
#

KERNELS="`ls -dr linux-* 2>/dev/null`"
NKERNELS="`echo ${KERNELS} | wc -w`"
if [ ${NKERNELS} -gt 1 ]; then
	echo "choice"
	echo "	prompt \"Kernel Version\""
	GOTDEFAULT="no"

	for i in ${KERNELS}; do
		VER=${i##linux-}
		CFG="DEFAULTS_KERNEL_`echo ${VER%%.x}|sed -e 's/[-\.]/_/g'`"
		DEF="linux-${VER}"
		if  [ $GOTDEFAULT = "no" ]
		then
			echo "	default ${CFG}"
			echo
			GOTDEFAULT="yes"
		fi
		echo "config ${CFG}"
		echo "	bool \"${DEF}\""
		echo
	done

	echo "endchoice"
	echo

elif [ ${NKERNELS} -eq 1 ]; then
	VER=${KERNELS##linux-}
	CFG="DEFAULTS_KERNEL_`echo ${VER%%.x}|sed -e 's/[-\.]/_/g'`"
	echo "comment \"Kernel is linux-${VER}\""
	echo
	echo "config ${CFG}"
	echo "	bool"
	echo "	default y"
	echo

else
	echo "ERROR: you have no kernels available in this directory." >&2
	exit 1
fi

echo "config LINUXDIR"
echo "	string"
echo

#############################################################################

#
# Which libc do they want,  if only one then just set it,  I don't
# expect an explosion of libc's just yet either ;-)
#

LIBCS="`ls -d uClibc uClibc-* 2>/dev/null` `ls -d lib/libc 2>/dev/null` `ls -d glibc 2>/dev/null` None"
NLIBCS="`echo ${LIBCS} | wc -w`"
if [ ${NLIBCS} -gt 1 ]; then
	echo "choice"
	echo "	prompt \"Libc Version\""
	GOTDEFAULT="no"

	for i in ${LIBCS}; do
		[ "$i" = "lib/libc" ] && i=uC-libc
		CFG="DEFAULTS_LIBC_`fix_name ${i}`"
		DEF="${i}"
		if  [ $GOTDEFAULT = "no" ]
		then
			echo "	default ${CFG}"
			echo
			GOTDEFAULT="yes"
		fi
		echo "config ${CFG}"
		echo "	bool \"${DEF}\""
		echo
	done

	echo "endchoice"

	if [ -f glibc/Kconfig ]; then
		echo
		echo "source glibc/Kconfig"
	fi

	echo

elif [ ${NLIBCS} -eq 1 ]; then
	[ "$LIBCS" = "lib/libc" ] && LIBCS=uC-libc
	CFG="DEFAULTS_LIBC_`fix_name ${LIBCS}`"
	echo "comment \"Libc is ${LIBCS}\""
	echo
	echo "config ${CFG}"
	echo "	bool"
	echo "	default y"

	if [ -f glibc/Kconfig ]; then
		echo
		echo "source glibc/Kconfig"
	fi

	echo

else
	echo "ERROR: you have no libc available in this directory." >&2
	exit 1
fi

echo "config LIBCDIR"
echo "	string"
echo

#############################################################################

#
# the rest of the config
#

cat <<!EOF
config DEFAULTS_OVERRIDE
	bool "Default all settings (lose changes)"

config DEFAULTS_KERNEL
	bool "Customize Kernel Settings"

!EOF

if [ -d modules ]
then
	echo "config DEFAULTS_MODULES"
	echo "	bool \"Customize Module Settings\""
	echo
fi

cat <<!EOF
config DEFAULTS_VENDOR
	bool "Customize Application/Library Settings"

config DEFAULTS_VENDOR_UPDATE
	bool "Update Default Vendor Settings"

endmenu

!EOF

############################################################################