#!/bin/sh

set -eu

[ -z "${ARCH+x}" ] && ARCH=universal

case "${ARCH}" in

arm64)

# Build for arm64, either as a same-architecture or cross-architecture

# build.

CONFIGURE_HOST_ARG="--host=aarch64-apple-darwin"

CC_ARCH_ARG="-arch ${ARCH}"

# Don't collide with macosx, which has traditionally been used for x86_64

# code.

ARCH_DIR=mac-arm64

;;

universal)

# Build for x86_64 and arm64 simultaneously, putting the results into

# "universal" or "fat" binaries.

CONFIGURE_HOST_ARG=

CC_ARCH_ARG="-arch x86_64 -arch arm64"

# It's fine to put universal code into macosx, traditionally used for x86_64

# code, because it will contain x86_64 code and will run without trouble on

# x86_64 systems. Using the same directory for universal files means that

# these tools will remain at a stable path across a transition between

# x86_64 and arm64.

ARCH_DIR=macosx

;;

x86_64)

# Build for x86_64, either as a same-architecture or cross-architecture

# build.

CONFIGURE_HOST_ARG="--host=${ARCH}-apple-darwin"

CC_ARCH_ARG="-arch ${ARCH}"

ARCH_DIR=macosx

;;

*)

# Build for some other ${ARCH}, either as a same-architecture or

# cross-architecture build.

CONFIGURE_HOST_ARG="--host=${ARCH}-apple-darwin"

CC_ARCH_ARG="-arch ${ARCH}"

ARCH_DIR="mac-${ARCH}"

;;

esac

if [ -z "${MIN_OS_VERSION+x}" ]; then

case "${ARCH}" in

arm64)

# macOS 11 was the first to support arm64.

MIN_OS_VERSION=11.0

;;

universal | x86_64)

# Although this could be set lower, the xPack tools declare support for

# macOS 10.13, so it's unlikely that anyone would be using anything older.

#

# In a universal build, the toolchain will use this value for the x86_64

# build, but will automatically increase the minimum to 11.0 for the arm64

# build, because that was the first OS version to support arm64.

MIN_OS_VERSION=10.13

;;

esac

fi

if [ -n "${MIN_OS_VERSION+x}" ]; then

CC_MIN_OS_VERSION_ARG="-mmacosx-version-min=${MIN_OS_VERSION}"

fi

MAKE_J_ARG="-j$(sysctl -n hw.ncpu)"

BASE_CFLAGS="-Os -flto"

BASE_LDFLAGS="-dead_strip"

LIBUSB_VERSION=1.0.27

DFU_UTIL_VERSION=0.11

STM32_HID_BOOTLOADER_VERSION=2.2.2

set -x

cd "$(dirname "${0}")/.."

(

cd ..

# dfu-util depends on libusb, which isn't part of the operating system.

# Provide a build of libusb to satisfy that dependency.

[ ! -d libusb ] && git clone https://github.com/libusb/libusb.git

cd libusb

git checkout "v${LIBUSB_VERSION}"

# git clean -fdx

# git checkout -- .

sh bootstrap.sh

CC="clang ${CC_ARCH_ARG} ${CC_MIN_OS_VERSION_ARG}" \

CFLAGS="${BASE_CFLAGS}" \

LDFLAGS="${BASE_LDFLAGS} -Wl,-source_version,${LIBUSB_VERSION}" \

sh configure ${CONFIGURE_HOST_ARG}

make clean

make ${MAKE_J_ARG}

# Rewrite the LC_ID_DYLIB in libusb-1.0.0.dylib so that other modules that

# link against it will expect to find it in the same directory that they are

# located in (@loader_path). Later, libusb-1.0.0.dylib will be copied to the

# same directory as dfu-util and the other executables that rely on it.

install_name_tool \

-id @loader_path/libusb-1.0.0.dylib \

libusb/.libs/libusb-1.0.0.dylib

cd ..

[ ! -d dfu-util ] && git clone git://git.code.sf.net/p/dfu-util/dfu-util

cd dfu-util

git checkout "v${DFU_UTIL_VERSION}"

# git clean -fdx

# git checkout -- .

sh autogen.sh

CC="clang ${CC_ARCH_ARG} ${CC_MIN_OS_VERSION_ARG}" \

CFLAGS="${BASE_CFLAGS} -fvisibility=hidden" \

LDFLAGS="${BASE_LDFLAGS} -Wl,-source_version,${DFU_UTIL_VERSION}" \

USB_CFLAGS="-I$(pwd)/../libusb/libusb" \

USB_LIBS="-L$(pwd)/../libusb/libusb/.libs -lusb-1.0.0" \

sh configure ${CONFIGURE_HOST_ARG}

make clean

make ${MAKE_J_ARG}

cd ..

[ ! -d STM32_HID_Bootloader ] &&

git clone https://github.com/Serasidis/STM32_HID_Bootloader.git

cd STM32_HID_Bootloader

git checkout "${STM32_HID_BOOTLOADER_VERSION}"

# git clean -fdx

# git checkout -- .

git checkout -- cli/main.c

# Isolate and apply the patch from

# https://github.com/Serasidis/STM32_HID_Bootloader/issues/68#issuecomment-2009105851

curl --silent \

https://api.github.com/repos/Serasidis/STM32_HID_Bootloader/issues/comments/2009105851 |

jq --raw-output .body |

sed -e 's/\r//g' -e '1,/^```/d' -e '/^```$/,$d' |

patch cli/main.c

make -C cli clean

make -C cli ${MAKE_J_ARG} \

CC="clang ${CC_ARCH_ARG} ${CC_MIN_OS_VERSION_ARG}" \

CFLAGS="${BASE_CFLAGS} -fvisibility=hidden -Wall -Werror -c" \

LDFLAGS="${BASE_LDFLAGS} -Wl,-source_version,${STM32_HID_BOOTLOADER_VERSION}"

cd ..

)

mkdir -p "${ARCH_DIR}"

cp ../libusb/libusb/.libs/libusb-1.0.0.dylib \

../dfu-util/src/dfu-prefix \

../dfu-util/src/dfu-suffix \

../dfu-util/src/dfu-util \

../STM32_HID_Bootloader/cli/hid-flash \

"${ARCH_DIR}/"

chmod -x "${ARCH_DIR}/libusb-1.0.0.dylib"

# It would be nice to include -Wl,-source_version here, but that's tricky to do

# for code that's in this repository, and probably won't be tagged with a

# version until after this tool is built.

clang \

${CC_ARCH_ARG} \

${CC_MIN_OS_VERSION_ARG} \

${BASE_CFLAGS} \

-fvisibility=hidden \

${BASE_LDFLAGS} \

-Wall \

-Werror \

-o "${ARCH_DIR}/upload_reset" \

src/upload_reset/unix/upload_reset.c