Add support test script

This semi-automated test script exercises some build configurations that aren't covered by regular CI runs.

Utilities/run-full-tests.sh

@@ -0,0 +1,135 @@
+#!/bin/sh
+#===----------------------------------------------------------------------
+#
+# This source file is part of the Swift Atomics open source project
+#
+# Copyright (c) 2021 Apple Inc. and the Swift project authors
+# Licensed under Apache License v2.0 with Runtime Library Exception
+#
+# See https://swift.org/LICENSE.txt for license information
+#
+#===----------------------------------------------------------------------
+
+# Build & test this package in as many configurations as possible.
+# It is a good idea to run this script before each release to uncover
+# potential problems not covered by the usual CI runs.
+#
+# Note that this is not a fully automated solution -- some manual editing will
+# sometimes be required when e.g. testing the package on older Xcode releases.
+
+set -eu
+
+cd "$(dirname $0)/.."
+
+build_dir="$(mktemp -d "/tmp/$(basename $0).XXXXX")"
+
+bold_on="$(tput bold)"
+bold_off="$(tput sgr0)"
+
+red_on="$(tput setaf 1)"
+red_off="$(tput sgr0)"
+
+spm_flags=""
+
+if [ "$(uname)" = "Darwin" ]; then
+    swift="xcrun swift"
+else
+    swift="swift"
+    spm_flags="$spm_flags -j 1"
+fi
+
+echo "Build output logs are saved in $bold_on$build_dir$bold_off"
+swift --version
+
+report_failure() {
+    logs="$1"
+}
+
+_count=0
+try() {
+    label="$1"
+    shift
+    _count=$(($_count + 1))
+    count="$(printf "%02d" $_count)"
+    output="$build_dir/$count.$label.log"
+    echo "$bold_on[$count $label]$bold_off $@"
+    start="$(date +%s)"
+    if "$@" >"$output" 2>&1; then
+        end="$(date +%s)"
+        echo "  Completed in $(($end - $start))s"
+    else
+        end="$(date +%s)"
+        echo "  ${red_on}${bold_on}Failed in $(($end - $start))s.${bold_off}${red_off}" \
+             "${red_on}See $output for full console output.${red_off}"
+        tail -10 "$output" | sed 's/^/  /'
+    fi
+}
+
+# Build using SPM
+try "spm.debug" $swift test -c debug $spm_flags --build-path "$build_dir/spm.debug"
+try "spm.release" $swift test -c release $spm_flags --build-path "$build_dir/spm.release"
+if [ "$(uname)" = "Linux" ]; then
+    try "spm.release.dword" $swift test -c release $spm_flags -Xcc -mcx16 -Xswiftc -DENABLE_DOUBLEWIDE_ATOMICS --build-path "$build_dir/spm.release.dword"
+fi
+
+# Build with CMake
+cmake_debug_build_dir="$build_dir/cmake.debug"
+try "cmake.debug.generate" cmake -S . -B "$cmake_debug_build_dir" -G Ninja -DCMAKE_BUILD_TYPE=DEBUG
+try "cmake.debug.build-with-ninja" ninja -C "$cmake_debug_build_dir" 
+
+cmake_release_build_dir="$build_dir/cmake.release"
+try "cmake.release.generate" cmake -S . -B "$cmake_release_build_dir" -G Ninja -DCMAKE_BUILD_TYPE=RELEASE
+try "cmake.release.build-with-ninja" ninja -C "$cmake_release_build_dir"
+if [ "$(uname)" != "Darwin" ]; then # We have not hooked up cmake tests on Darwin yet
+    try "cmake.release.test" "$cmake_release_build_dir/bin/AtomicsTestBundle"
+fi
+
+
+if [ "$(uname)" = "Darwin" ]; then
+    # Build using xcodebuild
+    try "xcodebuild.build" \
+        xcodebuild -scheme swift-atomics \
+        -configuration Release \
+        -destination "generic/platform=macOS" \
+        -destination "generic/platform=macOS,variant=Mac Catalyst" \
+        -destination "generic/platform=iOS" \
+        -destination "generic/platform=iOS Simulator" \
+        -destination "generic/platform=watchOS" \
+        -destination "generic/platform=watchOS Simulator" \
+        -destination "generic/platform=tvOS" \
+        -destination "generic/platform=tvOS Simulator" \
+        clean build
+    try "xcodebuild.test" \
+        xcodebuild -scheme swift-atomics \
+        -configuration Release \
+        -destination "platform=macOS" \
+        -destination "platform=macOS,variant=Mac Catalyst" \
+        -destination "platform=iOS Simulator,name=iPhone 12" \
+        -destination "platform=watchOS Simulator,name=Apple Watch Series 6 - 44mm" \
+        -destination "platform=tvOS Simulator,name=Apple TV 4K (at 1080p) (2nd generation)" \
+        test
+fi
+
+# Build with custom configurations
+
+# Some people like to build their dependencies in warnings-as-errors mode.
+try "spm.warnings-as-errors.debug"  $swift build -c debug -Xswiftc -warnings-as-errors $spm_flags --build-path "$build_dir/spm.warnings-as-errors"
+try "spm.warnings-as-errors.release"  $swift build -c release -Xswiftc -warnings-as-errors $spm_flags --build-path "$build_dir/spm.warnings-as-errors"
+
+# Build with library evolution enabled. (This configuration is
+# unsupported, but let's make some effort not to break it.)
+if [ "$(uname)" = "Darwin" ]; then
+    try "spm.library-evolution" \
+        $swift build \
+        -c release \
+        $spm_flags \
+        --build-path "$build_dir/spm.library-evolution"  \
+        -Xswiftc -enable-library-evolution
+    try "xcodebuild.library-evolution" \
+        xcodebuild -scheme swift-atomics \
+        -destination "generic/platform=macOS" \
+        -destination "generic/platform=iOS" \
+        BUILD_LIBRARY_FOR_DISTRIBUTION=YES
+fi
+
+$swift package clean