lbmk: use 2-level directory structure in script/

as opposed to the current 3-level structure.

recent build system simplifications have enabled
this change, thus:

./build fw coreboot -> ./build roms
./build fw grub -> ./build grub
./build fw serprog -> ./build serprog
./update project release -> ./update release
./update project trees -> ./update trees
./update vendor download -> ./vendor download
./update vendor inject -> ./vendor inject

alper criticised that the commands were too long,
so i made them shorter!

Signed-off-by: Leah Rowe <leah@libreboot.org>

script/build/serprog

@@ -0,0 +1,81 @@
+#!/usr/bin/env sh
+# SPDX-License-Identifier: GPL-3.0-or-later
+# SPDX-FileCopyrightText: 2023 Riku Viitanen <riku.viitanen@protonmail.com>
+
+[ "x${DEBUG+set}" = 'xset' ] && set -v
+set -u -e
+
+. "include/err.sh"
+
+eval "$(setvars "" platform pico_sdk_dir pico_src_dir stm32_src_dir boards_dir)"
+
+pico_src_dir=src/pico-serprog
+pico_sdk_dir=src/pico-sdk
+stm32_src_dir=src/stm32-vserprog
+
+usage="usage: ./build firmware serprog <rp2040|stm32> [board]"
+
+main()
+{
+	[ -z "${1+x}" ] && err "${usage}"
+	if [ "${1}" = "rp2040" ]; then
+		platform="rp2040"
+		boards_dir=${pico_sdk_dir}/src/boards/include/boards
+		[ -d "${pico_src_dir}/" ] || \
+			x_ ./update trees -f "rpi-pico-serprog"
+	elif [ "${1}" = "stm32" ]; then
+		platform="stm32"
+		boards_dir=${stm32_src_dir}/boards
+		[ -d "${stm32_src_dir}/" ] || \
+			x_ ./update trees -f "stm32-vserprog"
+	else
+		err "${usage}"
+	fi
+	x_ mkdir -p "bin/serprog_${platform}"
+
+	if [ $# -gt 1 ] ; then
+		[ "${2}" = "list" ] && print_boards ${boards_dir} && return 0
+		build_${platform}_rom "${2}"
+	else
+		printf "Building all serprog targets\n"
+		list_boards "${boards_dir}" | while read board; do
+			build_${platform}_rom "${board}"
+		done
+	fi
+}
+
+build_rp2040_rom()
+{
+	board=${1}
+	printf "Building pico-serprog for ${board}\n"
+	x_ cmake -DPICO_BOARD="${board}" -DPICO_SDK_PATH="${pico_sdk_dir}" \
+	    -B "${pico_src_dir}/build" "${pico_src_dir}"
+	x_ cmake --build "${pico_src_dir}/build"
+	x_ mv ${pico_src_dir}/build/pico_serprog.uf2 \
+	   bin/serprog_rp2040/serprog_${board}.uf2
+	printf "output to bin/serprog_rp2040/serprog_${board}.uf2\n"
+}
+
+build_stm32_rom()
+{
+	board=${1}
+	printf "Building stm32-vserprog for ${board}\n"
+	x_ make -C ${stm32_src_dir} libopencm3-just-make BOARD=${board}
+	x_ make -C ${stm32_src_dir} BOARD=${board}
+	x_ mv ${stm32_src_dir}/stm32-vserprog.hex \
+	   bin/serprog_stm32/serprog_${board}.hex
+	printf "output to bin/serprog_stm32/serprog_${board}.hex\n"
+}
+
+print_boards()
+{
+	printf "Available boards:\n"
+	list_boards "${1}"
+}
+
+list_boards()
+{
+	basename -a -s .h ${1}/*.h
+}
+
+main $@