Script for building custom builds of hermes for react-native 0.76.7

build-hermes.sh

export HERMES_WS_DIR="/tmp/hermes"
export HERMES_TARBALL_ARTIFACTS_DIR="/tmp/hermes/hermes-runtime-darwin"
export HERMES_OSXBIN_ARTIFACTS_DIR="/tmp/hermes/osx-bin"
export IOS_DEPLOYMENT_TARGET="15.1"
export MAC_DEPLOYMENT_TARGET="14.0"
# supported platforms, see also https://github.com/facebook/react-native/blob/798f2e47aafa555a99d596cefa6bf6972e17d52e/.github/workflows/publish-release.yml#L67
declare -a slices=("macosx" "iphoneos" "iphonesimulator")

set -ex

# restore-hermes-workspace
mkdir -p $HERMES_OSXBIN_ARTIFACTS_DIR ./packages/react-native/sdks/hermes
cp -r $HERMES_WS_DIR/hermes/* ./packages/react-native/sdks/hermes/.
cp -r ./packages/react-native/sdks/hermes-engine/utils ./packages/react-native/sdks/hermes/.

# build-hermesc-apple
cd ./packages/react-native/sdks/hermes || exit 1
. ./utils/build-apple-framework.sh
build_host_hermesc_if_needed

# build-apple-slices-hermes
function build_apple_slice() 
{
  echo "Current directory: $(pwd)"
  SLICE=$1
  FLAVOR=$2
  FINAL_PATH=build_"$SLICE"_"$FLAVOR"
  echo "Final path for this slice is: $FINAL_PATH"

  if [[ -d "$FINAL_PATH" ]]; then
    echo "[HERMES] Skipping! Found the requested slice at $FINAL_PATH".
    exit 0
  fi

  if [[ "$ARTIFACTS_EXIST" ]]; then
    echo "[HERMES] Skipping! Artifacts exists already."
    exit 0
  fi

  export RELEASE_VERSION=0.76.7

  # HermesC is used to build hermes, so it has to be executable
  chmod +x ./build_host_hermesc/bin/hermesc

  if [[ "$SLICE" == "macosx" ]]; then
    echo "[HERMES] Building Hermes for MacOS"

    chmod +x ./utils/build-mac-framework.sh
    export BUILD_TYPE="$FLAVOR" 
    ./utils/build-mac-framework.sh
  else
    echo "[HERMES] Building Hermes for iOS: $SLICE"

    chmod +x ./utils/build-ios-framework.sh
    export BUILD_TYPE="$FLAVOR" 
    ./utils/build-ios-framework.sh "$SLICE"
  fi

  echo "Moving from build_$SLICE to $FINAL_PATH"
  mv build_"$SLICE" "$FINAL_PATH"

  # check whether everything is there
  if [[ -d "$FINAL_PATH/API/hermes/hermes.framework" ]]; then
    echo "Successfully built hermes.framework for $SLICE in $FLAVOR"
  else
    echo "Failed to built hermes.framework for $SLICE in $FLAVOR"
    exit 1
  fi

  if [[ -d "$FINAL_PATH/API/hermes/hermes.framework.dSYM" ]]; then
    echo "Successfully built hermes.framework.dSYM for $SLICE in $FLAVOR"
  else
    echo "Failed to built hermes.framework.dSYM for $SLICE in $FLAVOR"
    echo "Please try again"
    exit 1
  fi

  rm -r destroot
}

# Go application only targets iphoneos and iphonesimulator
for slice in "${slices[@]}"; 
do
  build_apple_slice "$slice" "Debug"
  build_apple_slice "$slice" "Release"
done

# build-hermes-macos (combines slices into single framework)
function build_combined_slices() 
{
  export BUILD_TYPE=$1
  # Prepare destroot folder

  chmod +x ./utils/build-apple-framework.sh
  . ./utils/build-apple-framework.sh

  mkdir -p  "destroot/bin"
  for slice in "${slices[@]}"; do
    mkdir -p "destroot/Library/Frameworks/$platform"
    cp -R "./build_${slice}_${BUILD_TYPE}/API/hermes/hermes.framework"* "destroot/Library/Frameworks/$platform"
  done

  cp "./build_macosx_${BUILD_TYPE}/bin/"* "destroot/bin"

  # Copy over Hermes and JSI API headers.
  mkdir -p destroot/include/hermes/Public
  cp public/hermes/Public/*.h destroot/include/hermes/Public

  mkdir -p destroot/include/hermes
  cp API/hermes/*.h destroot/include/hermes

  mkdir -p destroot/include/hermes/cdp
  cp API/hermes/cdp/*.h destroot/include/hermes/cdp

  mkdir -p destroot/include/hermes/inspector
  cp API/hermes/inspector/*.h destroot/include/hermes/inspector

  mkdir -p destroot/include/hermes/inspector/chrome
  cp API/hermes/inspector/chrome/*.h destroot/include/hermes/inspector/chrome

  mkdir -p destroot/include/jsi
  cp "$JSI_PATH"/jsi/*.h destroot/include/jsi

  # Create fat framework for iOS

  echo "[HERMES] Creating the universal framework"
  chmod +x ./utils/build-ios-framework.sh
  ./utils/build-ios-framework.sh build_framework

  chmod +x ./destroot/bin/hermesc

  # Package the Hermes Apple frameworks

  echo "Packaging Hermes Apple frameworks for $BUILD_TYPE build type"

  TARBALL_OUTPUT_DIR=$(mktemp -d /tmp/hermes-tarball-output-XXXXXXXX)

  TARBALL_FILENAME=$(node ./packages/react-native/scripts/hermes/get-tarball-name.js --buildType "$BUILD_TYPE")

  echo "Packaging Hermes Apple frameworks for $BUILD_TYPE build type"

  TARBALL_OUTPUT_PATH=$(node ./packages/react-native/scripts/hermes/create-tarball.js \
    --inputDir ./packages/react-native/sdks/hermes \
    --buildType "$BUILD_TYPE" \
    --outputDir $TARBALL_OUTPUT_DIR)

  echo "Hermes tarball saved to $TARBALL_OUTPUT_PATH"

  mkdir -p $HERMES_TARBALL_ARTIFACTS_DIR
  cp $TARBALL_OUTPUT_PATH $HERMES_TARBALL_ARTIFACTS_DIR/.

  # mkdir -p /tmp/hermes/osx-bin/$BUILD_TYPE
  # cp ./packages/react-native/sdks/hermes/build_macosx/bin/* /tmp/hermes/osx-bin/$BUILD_TYPE
  # ls -lR /tmp/hermes/osx-bin/

  # Create dSYM archive
  export WORKING_DIR="/tmp/hermes_tmp/dSYM/$BUILD_TYPE"
  export DSYM_FILE_PATH=API/hermes/hermes.framework.dSYM

  for slice in "${slices[@]}"; 
  do
    mkdir -p "$WORKING_DIR/$slice"
    cp -r build_${slice}_${BUILD_TYPE}/$DSYM_FILE_PATH "$WORKING_DIR/$slice/"
  done

  export DEST_DIR="/tmp/hermes/dSYM/$BUILD_TYPE"
  tar -C "$WORKING_DIR" -czvf "hermes.framework.dSYM" .

  mkdir -p "$DEST_DIR"
  mv "hermes.framework.dSYM" "$DEST_DIR"
}

build_combined_slices "Release"
build_combined_slices "Debug"