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

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

#############################################################################
#
# the header of the config
#

echo "mainmenu_name 'SnapGear Embedded Linux Configuration'"

#############################################################################
#
# Figure out the vendor/products dynamically, allows people to add there
# own without messin with the config.in file
#

echo "mainmenu_option next_comment"
echo "comment 'Vendor/Product Selection'"
echo "comment 'Select the Vendor you wish to target'"
echo -n "choice 'Vendor' \""

oldv=
find vendors -name config.arch -print | sed -e 's?/? ?g' | \
		sort | while read t1 v p t2
do
	[ "$v" = "config" ] && continue
	[ "$v" = "$oldv" ] && continue
	echo "${v} CONFIG_DEFAULTS_`fix_name ${v}` \\"
	oldv=$v
done
echo "\" SnapGear"
#echo "endmenu"

# echo "mainmenu_option next_comment"
# echo "comment 'Product Selection'"
echo "comment 'Select the Product you wish to target'"

oldv=
def=
find vendors -name config.arch -print | sed -e 's?/? ?g' | \
		(sort; echo "END END END END") | while read t1 v p t2
do
	[ "$v" = "config" ] && continue
	if [ "$v" != "$oldv" ]
	then
		[ "$def" -o "$v" = END ] && echo "\" $def"
		[ "$def" -o "$v" = END ] && echo "fi"
		[ "$v" = END ] && break
		echo "if [ \"\$CONFIG_DEFAULTS_`fix_name ${v}`\" = \"y\" ]; then"
		echo -n "choice '${v} Products' \""
		def="${p}"
	fi
	if [ -f "vendors/$v/$p/config.languages" ]
	then
		for i in `cat "vendors/$v/$p/config.languages"`
		do
			[ "$def" = "${p}" ] && def="${p}\\($i\\)"
			echo "${p}($i) CONFIG_DEFAULTS_`fix_name ${v}`_`fix_name ${p}`_`fix_name ${i}` \\"
		done
	else
		echo "${p} CONFIG_DEFAULTS_`fix_name ${v}`_`fix_name ${p}` \\"
	fi
	oldv=$v
done

echo "endmenu"

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

echo "mainmenu_option next_comment"
echo "comment 'Kernel/Library/Defaults Selection'"

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

KERNELS="`ls -d linux-* 2>/dev/null`"
NKERNELS="`echo ${KERNELS} | wc -w`"
if [ ${NKERNELS} -gt 1 ]; then
	echo -n "choice 'Kernel Version' \""
	for i in ${KERNELS}; do
		VER=${i##linux-}
		CFG="CONFIG_DEFAULTS_KERNEL_`echo ${VER%%.x}|sed -e 's/[-\.]/_/g'`"
		DEF="linux-${VER}"
		echo "${DEF} ${CFG} \\"
	done
	echo "\" $DEF"
elif [ ${NKERNELS} -eq 1 ]; then
	VER=${KERNELS##linux-}
	CFG="CONFIG_DEFAULTS_KERNEL_`echo ${VER%%.x}|sed -e 's/[-\.]/_/g'`"
	echo "comment 'Kernel is linux-${VER}'"
	echo "define_bool ${CFG} y"
else
	echo "ERROR: you have no kernels available in this directory." >&2
	exit 1
fi

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

LIBCS="None `ls -d lib/libc uClibc uClibc-* glibc glibc-* 2>/dev/null`"
NLIBCS="`echo ${LIBCS} | wc -w`"
if [ ${NLIBCS} -gt 1 ]; then
	echo -n "choice 'Libc Version' \""
	for i in ${LIBCS}; do
		[ "$i" = "lib/libc" ] && i=uC-libc
		CFG="CONFIG_DEFAULTS_LIBC_`fix_name ${i}`"
		DEF="${i}"
		echo "${DEF} ${CFG} \\"
	done
	echo "\" $DEF"
elif [ ${NLIBCS} -eq 1 ]; then
	[ "$LIBCS" = "lib/libc" ] && LIBCS=uC-libc
	CFG="CONFIG_DEFAULTS_LIBC_`fix_name ${LIBCS}`"
	echo "comment 'Libc is ${LIBCS}'"
	echo "define_bool ${CFG} y"
else
	echo "ERROR: you have no libc available in this directory." >&2
	exit 1
fi

# echo "endmenu"

#############################################################################
#
# the rest of the config
#

# echo "mainmenu_option next_comment"
# echo "comment 'Configuration Overrides'"

cat <<!EOF
bool 'Default all settings (lose changes)'	CONFIG_DEFAULTS_OVERRIDE
bool 'Customize Kernel Settings'			CONFIG_DEFAULTS_KERNEL
!EOF
[ -d modules ] &&
	echo "bool 'Customize Module Settings'			CONFIG_DEFAULTS_MODULES"
cat <<!EOF
bool 'Customize Vendor/User Settings'		CONFIG_DEFAULTS_VENDOR
bool 'Update Default Vendor Settings'		CONFIG_DEFAULTS_VENDOR_UPDATE
endmenu
!EOF

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