improve ci

.github/workflows/integration_tests.yml

@@ -0,0 +1,80 @@
+name: IntegrationTests
+
+on:
+  workflow_call:
+    inputs:
+      name:
+        type: string
+        description: "The name of the workflow used for the concurrency group."
+        required: true
+      # We pass the list of examples here, but we can't pass an array as argument
+      # Instead, we pass a String with a valid JSON array.
+      # The workaround is mentioned here https://github.com/orgs/community/discussions/11692
+      examples:
+        type: string
+        description: "The list of examples to run. Pass a String with a valid JSON array such as \"[ 'Converse', 'ConverseStream' ]\""
+        required: true
+        default: ""
+      examples_enabled:
+        type: boolean
+        description: "Boolean to enable the compilation of examples. Defaults to true."
+        default: true
+      check_foundation_enabled:
+        type: boolean
+        description: "Boolean to enable the check for Foundation dependency. Defaults to true."
+        default: true
+      matrix_linux_command:
+        type: string
+        description: "The command of the current Swift version linux matrix job to execute."
+        required: true
+
+## We are cancelling previously triggered workflow runs
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ inputs.name }}
+  cancel-in-progress: true
+
+jobs:
+  test-examples:
+    name: Test Examples/${{ matrix.examples }} on ${{ matrix.swift.swift_version }}
+    if: ${{ inputs.examples_enabled }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        examples: ${{ fromJson(inputs.examples) }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Mark the workspace as safe
+        run: git config --global --add safe.directory ${GITHUB_WORKSPACE}
+
+      - name: Run matrix job
+        env:
+          COMMAND: ${{ inputs.matrix_linux_command }}
+          EXAMPLE: ${{ matrix.examples }}
+        run: |
+          .github/workflows/scripts/integration_tests.sh
+
+  playground-backend:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Web playground backend build
+        working-directory: Examples/web-playground/backend
+        run: swift build
+
+  check-foundation:
+    name: No dependencies on Foundation
+    if: ${{ inputs.check_foundation_enabled }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Mark the workspace as safe
+        # https://github.com/actions/checkout/issues/766
+        run: git config --global --add safe.directory ${GITHUB_WORKSPACE}
+      - name: Check for Foundation or ICU dependency
+        run: |
+          .github/workflows/scripts/check-link-foundation.sh

.github/workflows/pull_request.yml

@@ -0,0 +1,43 @@
+name: Build, tests & soundness checks
+
+on: [pull_request, workflow_dispatch]
+
+jobs:
+  swift-bedrock-library:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Run tests
+        run: swift test
+
+  soundness:
+    name: Soundness
+    uses: swiftlang/github-workflows/.github/workflows/soundness.yml@main
+    with:
+      license_header_check_enabled: true
+      license_header_check_project_name: "Swift Bedrock Library"
+      shell_check_enabled: false
+      python_lint_check_enabled: false
+      api_breakage_check_enabled: false
+      # api_breakage_check_container_image: "swift:6.1-noble"
+      docs_check_container_image: "swift:6.1-noble"
+      format_check_container_image: "swift:6.1-noble"
+      yamllint_check_enabled: true
+
+  integration-tests:
+    name: Integration Tests
+    uses: ./.github/workflows/integration_tests.yml
+    with:
+      name: "Integration tests"
+      examples_enabled: true
+      matrix_linux_command: "swift build"
+      check_foundation_enabled: true
+      # We pass the list of examples here, but we can't pass an array as argument
+      # Instead, we pass a String with a valid JSON array.
+      # The workaround is mentioned here https://github.com/orgs/community/discussions/11692
+      examples: "[ 'converse', 'converse-stream' ]"
+
+  swift-6-language-mode:
+    name: Swift 6 Language Mode
+    uses: ./.github/workflows/swift-6-language-mode.yml

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

@@ -0,0 +1,61 @@
+#!/bin/bash
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the Swift Bedrock Library open source project
+##
+## Copyright (c) 2025 Amazon.com, Inc. or its affiliates
+##                    and the Swift Bedrock Library project authors
+## Licensed under Apache License v2.0
+##
+## See LICENSE.txt for license information
+## See CONTRIBUTORS.txt for the list of Swift Bedrock Library project authors
+##
+## SPDX-License-Identifier: Apache-2.0
+##
+##===----------------------------------------------------------------------===##
+
+log() { printf -- "** %s\n" "$*" >&2; }
+error() { printf -- "** ERROR: %s\n" "$*" >&2; }
+fatal() { error "$@"; exit 1; }
+
+EXAMPLE=converse
+OUTPUT_DIR=.build/release
+OUTPUT_FILE=${OUTPUT_DIR}/converse
+LIBS_TO_CHECK="libFoundation.so libFoundationInternationalization.so lib_FoundationICU.so"
+
+pushd Examples/${EXAMPLE} || fatal "Failed to change directory to Examples/${EXAMPLE}."
+
+# recompile the example without the --static-swift-stdlib flag
+LAMBDA_USE_LOCAL_DEPS=../.. swift build -c release -Xlinker -s || fatal "Failed to build the example."
+
+# check if the binary exists
+if [ ! -f "${OUTPUT_FILE}" ]; then
+  error "❌ ${OUTPUT_FILE} does not exist."
+fi
+
+# Checking for Foundation or ICU dependencies
+echo "Checking for Foundation or ICU dependencies in ${OUTPUT_DIR}/${OUTPUT_FILE}."
+LIBRARIES=$(ldd ${OUTPUT_FILE} | awk '{print $1}')
+for LIB in ${LIBS_TO_CHECK}; do
+  echo -n "Checking for ${LIB}... "
+
+  # check if the binary has a dependency on Foundation or ICU
+  echo "${LIBRARIES}" | grep "${LIB}"  # return 1 if not found
+
+  # 1 is success (grep failed to find the lib), 0 is failure (grep successly found the lib)
+  SUCCESS=$?
+  if [ "$SUCCESS" -eq 0 ]; then
+    log "❌ ${LIB} found." && break
+  else
+    log "✅ ${LIB} not found."
+  fi
+done
+
+popd || fatal "Failed to change directory back to the root directory."
+
+# exit code is the opposite of the grep exit code
+if [ "$SUCCESS" -eq 0 ]; then
+  fatal "❌ At least one foundation lib was found, reporting the error."
+else
+  log "✅ No foundation lib found, congrats!" && exit 0
+fi

.github/workflows/scripts/integration_tests.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the Swift Bedrock Library open source project
+##
+## Copyright (c) 2025 Amazon.com, Inc. or its affiliates
+##                    and the Swift Bedrock Library project authors
+## Licensed under Apache License v2.0
+##
+## See LICENSE.txt for license information
+## See CONTRIBUTORS.txt for the list of Swift Bedrock Library project authors
+##
+## SPDX-License-Identifier: Apache-2.0
+##
+##===----------------------------------------------------------------------===##
+
+set -euo pipefail
+
+log() { printf -- "** %s\n" "$*" >&2; }
+error() { printf -- "** ERROR: %s\n" "$*" >&2; }
+fatal() { error "$@"; exit 1; }
+
+SWIFT_VERSION=$(swift --version)
+test -n "${SWIFT_VERSION:-}" || fatal "SWIFT_VERSION unset"
+test -n "${COMMAND:-}" || fatal "COMMAND unset"
+test -n "${EXAMPLE:-}" || fatal "EXAMPLE unset"
+
+pushd Examples/"$EXAMPLE" > /dev/null
+
+log "Running command with Swift $SWIFT_VERSION"
+eval "$COMMAND"
+
+popd

.github/workflows/swift-6-language-mode.yml

@@ -0,0 +1,24 @@
+name: Swift 6 language mode
+
+on:
+  workflow_call:
+
+# We are cancelling previously triggered workflow runs
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-swift-6-language-mode
+  cancel-in-progress: true
+
+jobs:
+  swift-6-language-mode:
+    name: Swift 6 language mode
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+          submodules: true
+      - name: Set the language mode
+        run: swift package tools-version --set 6.0
+      - name: Build with Swift 6 language mode
+        run: swift build -Xswiftc -warnings-as-errors

Examples/converse-stream/Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version: 6.1
+// swift-tools-version: 6.0
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription

Examples/converse/Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version: 6.1
+// swift-tools-version: 6.0
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version: 6.1
+// swift-tools-version: 6.0
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription