The adoption of `import FoundationEssentials` throughout the package ecosystem

sebsto · February 25, 2026, 11:48am

Indeed, I wrote a script that runs in the CI to check the absence of foundation-related libraries. The scripts builds a Lambda function and checks that the binary is not linked with libFoundation.so, libFoundationInternationalization.so, or lib_FoundationICU.so

The scrip is here

github.com/awslabs/swift-aws-lambda-runtime

.github/workflows/scripts/check-link-foundation.sh

main

#!/bin/bash
##===----------------------------------------------------------------------===##
##
## This source file is part of the SwiftAWSLambdaRuntime open source project
##
## Copyright (c) 2017-2024 Apple Inc. and the SwiftAWSLambdaRuntime project authors
## Licensed under Apache License v2.0
##
## See LICENSE.txt for license information
## See CONTRIBUTORS.txt for the list of SwiftAWSLambdaRuntime project authors
##
## SPDX-License-Identifier: Apache-2.0
##
##===----------------------------------------------------------------------===##

log() { printf -- "** %s\n" "$*" >&2; }
error() { printf -- "** ERROR: %s\n" "$*" >&2; }
fatal() { error "$@"; exit 1; }

EXAMPLE=APIGatewayV2

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Happy to read your feedback