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SwiftGit2/script/update_libgit2

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#!/bin/bash
set -e
# augment path to help it find cmake via homebrew
PATH="/opt/homebrew/bin:/usr/local/bin:$PATH"
SCRIPT_DIR=$(dirname "$0")
source "${SCRIPT_DIR}/xcode_functions.sh"
function setup_build_environment ()
{
pushd "$SCRIPT_DIR/.." > /dev/null
ROOT_PATH="$PWD"
popd > /dev/null
CLANG="/usr/bin/xcrun clang"
CC="${CLANG}"
CPP="${CLANG} -E"
MACOSX_DEPLOYMENT_TARGET="10.13"
XCODE_MAJOR_VERSION=$(xcode_major_version)
XCODE_MINOR_VERSION=$(xcode_minor_version)
if [ "${XCODE_MAJOR_VERSION}" -lt "14" ]
then
echo "Requires Xcode 14 or newer."
exit 1
fi
ARCHS="x86_64 arm64"
}
function setup ()
{
if [ "${ROOT_PATH}/External/libgit2-mac/libgit2-mac.a" -nt "${ROOT_PATH}/External/libgit2" ]
then
echo "No update needed."
exit 0
fi
LIBRARY_NAME="libgit2"
LIB_PATH="${ROOT_PATH}/External/libgit2-mac"
rm -rf "${LIB_PATH}"
pushd "${ROOT_PATH}/External/libgit2" > /dev/null
}
function build_libgit2 ()
{
rm -rf "build"
mkdir "build"
pushd "build" > /dev/null
# install the each built arch somewhere sane
INSTALL_PREFIX="${LIB_PATH}/${SDKNAME}-${ARCH}.sdk"
mkdir -p "${INSTALL_PREFIX}"
LOG="${INSTALL_PREFIX}/build-libgit2.log"
echo "$LOG"
cmake \
-DBUILD_SHARED_LIBS:BOOL=OFF \
-DCMAKE_PREFIX_PATH:PATH="${ROOT_PATH}/External/libssh2-mac/bin/${SDKNAME}-${ARCH}.sdk" \
-DCMAKE_INSTALL_PREFIX:PATH="${INSTALL_PREFIX}/" \
-DBUILD_CLAR:BOOL=OFF \
-DTHREADSAFE:BOOL=ON \
-DCMAKE_OSX_ARCHITECTURES:STRING="${ARCH}" \
-DCMAKE_OSX_DEPLOYMENT_TARGET:STRING="${MACOSX_DEPLOYMENT_TARGET}" \
.. >> "${LOG}" 2>&1
cmake --build . --target install >> "${LOG}" 2>&1
# push the built library into the list
BUILT_LIB_PATHS+=("${INSTALL_PREFIX}/lib/libgit2.a")
popd > /dev/null
}
function fat_binary ()
{
echo "Building fat binary..."
lipo -create "${BUILT_LIB_PATHS[@]}" -output "${ROOT_PATH}/External/libgit2-mac/libgit2-mac.a"
echo "Building done."
popd > /dev/null
}
setup_build_environment
setup
echo "Building for ${ARCHS}"
for ARCH in ${ARCHS}
do
PLATFORM="macosx"
SDKVERSION=$(macos_sdk_version)
SDKNAME="${PLATFORM}${SDKVERSION}"
SDKROOT="$(sdk_path ${SDKNAME})"
echo "Building ${LIBRARY_NAME} for ${SDKNAME} ${ARCH}"
echo "Please stand by..."
# run the per arch build command
build_libgit2
done
fat_binary
echo "libgit2 has been updated."