generate-swift-project.sh

#!/usr/bin/env bash

# This script builds the Rust crate in its directory and generates Swift bindings, headers, and a module map.

FRAMEWORK_NAME="SwiftComponents"

THIS_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"

REPO_ROOT="$( dirname "$( dirname "$THIS_DIR" )" )"

WORKING_DIR=$THIS_DIR

MANIFEST_PATH="$WORKING_DIR/Cargo.toml"

if [[ ! -f "$MANIFEST_PATH" ]]; then

  echo "Could not locate Cargo.toml in $MANIFEST_PATH"

  exit 1

fi

CRATE_NAME=$(grep --max-count=1 '^name =' "$MANIFEST_PATH" | cut -d '"' -f 2)

if [[ -z "$CRATE_NAME" ]]; then

  echo "Could not determine crate name from $MANIFEST_PATH"

  exit 1

fi

# Helper to run the cargo build command in a controlled environment.

# It's important that we don't let environment variables from the user's default

# desktop build environment leak into the iOS build, otherwise it might e.g.

# link against the desktop build of NSS.

CARGO="$HOME/.cargo/bin/cargo"

LIBS_DIR="$REPO_ROOT/libs"

cargo_build () {

  LIBS_DIR="$REPO_ROOT/libs/ios/arm64"

  env -i \

    NSS_STATIC=1 \

    NSS_DIR="$LIBS_DIR/nss" \

    PATH="${PATH}"

set -euvx

cargo_build aarch64-apple-ios

# Create directories for Swift files, headers, and module map

INCLUDE_DIR="$WORKING_DIR/Sources/$FRAMEWORK_NAME/include"

SWIFT_DIR="$WORKING_DIR/Sources/$FRAMEWORK_NAME"

mkdir -p "$INCLUDE_DIR"

# Generate Swift bindings and headers using uniffi-bindgen

$CARGO uniffi-bindgen generate "$REPO_ROOT/components/remote_settings/src/remote_settings.udl" -l swift -o "$SWIFT_DIR"

$CARGO uniffi-bindgen generate "$REPO_ROOT/components/nimbus/src/nimbus.udl" -l swift -o "$SWIFT_DIR"

$CARGO uniffi-bindgen generate "$REPO_ROOT/components/support/error/src/errorsupport.udl" -l swift -o "$SWIFT_DIR"

$CARGO uniffi-bindgen generate "$REPO_ROOT/components/support/rust-log-forwarder/src/rust_log_forwarder.udl" -l swift -o "$SWIFT_DIR"

# Move header files to the include directory

mv "$SWIFT_DIR"/*.h "$INCLUDE_DIR"

# Repeat for the other components if not focus

$CARGO uniffi-bindgen generate "$REPO_ROOT/components/crashtest/src/crashtest.udl" -l swift -o "$SWIFT_DIR"

$CARGO uniffi-bindgen generate "$REPO_ROOT/components/fxa-client/src/fxa_client.udl" -l swift -o "$SWIFT_DIR"

$CARGO uniffi-bindgen generate "$REPO_ROOT/components/logins/src/logins.udl" -l swift -o "$SWIFT_DIR"

$CARGO uniffi-bindgen generate "$REPO_ROOT/components/autofill/src/autofill.udl" -l swift -o "$SWIFT_DIR"

$CARGO uniffi-bindgen generate "$REPO_ROOT/components/push/src/push.udl" -l swift -o "$SWIFT_DIR"

$CARGO uniffi-bindgen generate "$REPO_ROOT/components/tabs/src/tabs.udl" -l swift -o "$SWIFT_DIR"

$CARGO uniffi-bindgen generate "$REPO_ROOT/components/places/src/places.udl" -l swift -o "$SWIFT_DIR"

$CARGO uniffi-bindgen generate "$REPO_ROOT/components/suggest/src/suggest.udl" -l swift -o "$SWIFT_DIR"

$CARGO uniffi-bindgen generate "$REPO_ROOT/components/sync_manager/src/syncmanager.udl" -l swift -o "$SWIFT_DIR"

$CARGO uniffi-bindgen generate "$REPO_ROOT/components/sync15/src/sync15.udl" -l swift -o "$SWIFT_DIR"

$CARGO uniffi-bindgen generate "$REPO_ROOT/components/as-ohttp-client/src/as_ohttp_client.udl" -l swift -o "$SWIFT_DIR"

# Move the header files to the include directory

mv "$SWIFT_DIR"/*.h "$INCLUDE_DIR"

rm -rf "$WORKING_DIR"/Sources/"$FRAMEWORK_NAME"/*.modulemap

echo "Successfully generated Swift bindings, headers, and module map."