debian-installer/build/util/syslinux-cfgs

#! /bin/bash
set -e

# Create syslinux configuration or list syslinux configuration files (x86)
# If called with two arguments (source and destination dir), the script will
# create a syslinux configuration; if called with only one argument, it will
# list the files for the created configuration.
# The variables TYPE and INCLUDE_GTK - which determine the contents
# of the created syslinux configuration - should be set in the environment.

# See also the x86_syslinux target in build/config/x86.cfg and the
# documentation for the SYSLINUX_CFG option in build/README.

SRC="$1"
DST="$2"

[ -d "$SRC" ] || exit 1

if [ -z "$DST" ]; then
	# Only list config files
	cd "$SRC"
	# spk.cfg is only meant for the netboot-gtk image which has the gtk
	# initrd at the root instead of gtk/
	if [ "$IS_PURE_GTK" = 1 ]
	then
		FILTER=
	else
		FILTER="! -name spk.cfg ! -name adspk.cfg ! -name rqspk.cfg"
	fi
	find . -type f $FILTER | sed "s:\./::"
	exit 0
elif [ ! -d "$DST" ]; then
	exit 1
fi

# Create config for default desktop environment
create_standard_config() {
	cp "$SRC"/syslinux.cfg "$SRC"/menu.cfg "$SRC"/stdmenu.cfg \
	   "$SRC"/prompt.cfg "$SRC"/exithelp.cfg "$DST"/
	cp "$SRC"/{,ad,rq}txt.cfg "$DST"/
	if [ -n "$INCLUDE_GTK" ]; then
		cp "$SRC"/{ad,rq,}{,spk}gtk.cfg "$DST"/
	fi
	if [ "$IS_PURE_GTK" = 1 ]; then
		cp "$SRC"/{,ad,rq}spk.cfg "$DST"/
	fi
}

case $TYPE in
    template)
	cp -r "$SRC"/*.cfg "$DST"/
	if [ -z "$INCLUDE_GTK" ]; then
		rm -f "$DST"/*gtk.cfg
		rm -f "$DST"/*spkgtk.cfg
		rm -f "$DST"/*spgtk.cfg
	fi
	if [ "$IS_PURE_GTK" != 1 ]; then
		rm -f "$DST"/*spk.cfg
	fi
	exit 0
	;;
    prompt)
	cp "$SRC"/prompt.cfg "$DST"/syslinux.cfg
	cp "$SRC"/menu.cfg "$DST"/
	cp "$SRC"/{,ad,rq}txt.cfg "$DST"/
	if [ "$IS_PURE_GTK" = 1 ]; then
		cp "$SRC"/{,ad,rq}spk.cfg "$DST"/
	fi
	;;
    standard)
	create_standard_config
	;;
    *)
	exit 1
	;;
esac

sed -i "s/desktop=%desktop% //" "$DST"/*.cfg