update_libgit2

#!/bin/sh

set -e

cd "External/libgit2"

if [ -d "build" ]; then
  rm -rf "build"
fi

mkdir build
cd build

# OpenSSL is keg-only, so add its pkgconfig location manually
if [[ $(uname -m) == 'arm64' ]]; then
  echo "Running on a Apple Silicon M1"
  export ARCH_PREFIX=/opt/homebrew
else
  echo "Running on a Apple x86"
  export ARCH_PREFIX=/usr/local
fi
export PKG_CONFIG_PATH=$ARCH_PREFIX/opt/openssl/lib/pkgconfig:$ARCH_PREFIX/lib/pkgconfig

# augment path to help it find cmake installed in /usr/local/bin,
# e.g. via brew. Xcode's Run Script phase doesn't seem to honor
# ~/.MacOSX/environment.plist
PATH="$ARCH_PREFIX/bin:$PATH"

cmake --version
cmake -DBUILD_SHARED_LIBS:BOOL=OFF \
  -DBUILD_CLAR:BOOL=OFF \
  -DTHREADSAFE:BOOL=ON \
  -DCMAKE_POLICY_VERSION_MINIMUM=3.5 \
  ..
cmake --build .

product="libgit2.a"
install_path="../../${product}"
rm -rf $install_path
cp -v "${product}" "${install_path}"

echo "libgit2 has been updated."