Swift Toolchain Build Script

build.sh

#!/usr/bin/env bash
set -e

# This should live in the same directory that contains the swift repository and other tools.

SRC_DIR=$PWD/swift

RUN_TESTS=
if [[ "$1" == "-t" || "$1" == "--test" ]] ; then
    RUN_TESTS="-t"
    shift
fi
# reconfigure prevents actual incremental builds, so only use when the cmake files are changed
RECONFIG=
if [[ "$1" == "-r" || "$1" == "--reconfigure" ]] ; then
    RECONFIG="--reconfigure"
    shift
fi

YEAR=$(date +"%Y")
MONTH=$(date +"%m")
DAY=$(date +"%d")
TOOLCHAIN_VERSION="swift-LOCAL-${YEAR}-${MONTH}-${DAY}-a"
ARCHIVE="${TOOLCHAIN_VERSION}-osx.tar.gz"
SYM_ARCHIVE="${TOOLCHAIN_VERSION}-osx-symbols.tar.gz"

BUNDLE_IDENTIFIER="${BUNDLE_PREFIX}.${YEAR}${MONTH}${DAY}"
DISPLAY_NAME_SHORT="Local Swift Development Snapshot"
DISPLAY_NAME="${DISPLAY_NAME_SHORT} ${YEAR}-${MONTH}-${DAY}"
TOOLCHAIN_NAME="${TOOLCHAIN_VERSION}"
SWIFT_INSTALLABLE_PACKAGE="${SRC_DIR}/${ARCHIVE}"
SWIFT_INSTALL_DIR="${SRC_DIR}/swift-nightly-install"
SWIFT_INSTALL_SYMROOT="${SRC_DIR}/swift-nightly-symroot"
SWIFT_TOOLCHAIN_DIR="/Library/Developer/Toolchains/${TOOLCHAIN_NAME}.xctoolchain"
SYMBOLS_PACKAGE="${SRC_DIR}/${SYM_ARCHIVE}"
TOOLCHAIN_ALIAS="Local"
SWIFT_PACKAGE="custom"
SWIFT_TOOLCHAIN_INFO_PLIST="$SWIFT_TOOLCHAIN_DIR/Info.plist"
TOOLCHAIN_REPORT_URL="https://bugs.swift.org/"
COMPATIBILITY_VERSION=2
COMPATIBILITY_VERSION_DISPLAY_STRING="Xcode 8.0"
TOOLCHAIN_CREATED_DATE="$(date -u +'%a %b %d %T GMT %Y')"
SWIFT_BUILDDIR="./build/$SWIFT_PACKAGE"

./swift/utils/build-script $RUN_TESTS \
    --ios --tvos --watchos \
    --lldb --llbuild \
    --release-debuginfo \
    --build-subdir=$SWIFT_PACKAGE \
    --assertions \
    --no-swift-stdlib-assertions \
    -- $RECONFIG \
    --skip-build-benchmarks --build-swift-examples=0 \
    --skip-test-lldb \
    --skip-test-ios-host --skip-test-tvos-host --skip-test-watchos-host \
    --lldb-no-debugserver \
    --lldb-use-system-debugserver \
    --lldb-build-type=Release \
    --build-ninja \
    --build-swift-static-stdlib \
    --compiler-vendor=apple \
    --install-swift --install-lldb --install-llbuild --install-swiftpm \
    --install-destdir="$SWIFT_INSTALL_DIR" \
    --darwin-install-extract-symbols \
    --install-symroot="$SWIFT_INSTALL_SYMROOT" \
    --install-prefix="$SWIFT_TOOLCHAIN_DIR/usr" \
    --swift-enable-ast-verifier=0 \
    --swift-install-components="compiler;clang-builtin-headers;stdlib;sdk-overlay;license;sourcekit-xpc-service;swift-remote-mirror-headers" \
    --llvm-install-components="libclang;libclang-headers" \
    --darwin-toolchain-bundle-identifier=$BUNDLE_IDENTIFIER \
    --darwin-toolchain-display-name="$DISPLAY_NAME" \
    --darwin-toolchain-display-name-short="$DISPLAY_NAME_SHORT" \
    --darwin-toolchain-name=$TOOLCHAIN_NAME \
    --darwin-toolchain-version=$TOOLCHAIN_NAME \
    --darwin-toolchain-alias=$TOOLCHAIN_ALIAS
# Install phase: this is a brutal and unforgiving install... it will erase data (namely what is in $SWIFT_TOOLCHAIN_DIR)
rm -Rf "$SWIFT_TOOLCHAIN_DIR"
mkdir -p "$SWIFT_TOOLCHAIN_DIR"
rsync -a --stats --progress "$SWIFT_INSTALL_DIR/$SWIFT_TOOLCHAIN_DIR" "$SWIFT_TOOLCHAIN_DIR/.."
rsync -a --stats --progress "$SWIFT_BUILDDIR/swift-macosx-x86_64/bin"* "$SWIFT_TOOLCHAIN_DIR/usr/"
mkdir -p "$SWIFT_TOOLCHAIN_DIR/usr/lib"
# Ensure swift itself is installed if this is an incremental build
rsync -av --stats --progress "$SWIFT_BUILDDIR/swift-macosx-x86_64/lib/swift" "$SWIFT_TOOLCHAIN_DIR/usr/lib/"
rsync -a --stats --progress "$SWIFT_BUILDDIR/swift-macosx-x86_64/lib/sourcekitd.framework" "$SWIFT_TOOLCHAIN_DIR/usr/lib/"
rsync -a --stats --progress "$SWIFT_BUILDDIR/swift-macosx-x86_64/lib/swift_static" "$SWIFT_TOOLCHAIN_DIR/usr/lib/"
rm -f "$SWIFT_TOOLCHAIN_INFO_PLIST"
/usr/libexec/PlistBuddy -c "Add DisplayName string '${DISPLAY_NAME}'" "${SWIFT_TOOLCHAIN_INFO_PLIST}"
/usr/libexec/PlistBuddy -c "Add ShortDisplayName string '${DISPLAY_NAME}'" "${SWIFT_TOOLCHAIN_INFO_PLIST}"
/usr/libexec/PlistBuddy -c "Add CreatedDate date '${TOOLCHAIN_CREATED_DATE}'" "${SWIFT_TOOLCHAIN_INFO_PLIST}"
/usr/libexec/PlistBuddy -c "Add CompatibilityVersion integer ${COMPATIBILITY_VERSION}" "${SWIFT_TOOLCHAIN_INFO_PLIST}"
/usr/libexec/PlistBuddy -c "Add CompatibilityVersionDisplayString string ${COMPATIBILITY_VERSION_DISPLAY_STRING}" "${SWIFT_TOOLCHAIN_INFO_PLIST}"
/usr/libexec/PlistBuddy -c "Add Version string '${TOOLCHAIN_VERSION}'" "${SWIFT_TOOLCHAIN_INFO_PLIST}"
/usr/libexec/PlistBuddy -c "Add CFBundleIdentifier string '${BUNDLE_IDENTIFIER}'" "${SWIFT_TOOLCHAIN_INFO_PLIST}"
/usr/libexec/PlistBuddy -c "Add ReportProblemURL string '${TOOLCHAIN_REPORT_URL}'" "${SWIFT_TOOLCHAIN_INFO_PLIST}"
/usr/libexec/PlistBuddy -c "Add Aliases array" "${SWIFT_TOOLCHAIN_INFO_PLIST}"
/usr/libexec/PlistBuddy -c "Add Aliases:0 string '${TOOLCHAIN_ALIAS}'" "${SWIFT_TOOLCHAIN_INFO_PLIST}"
/usr/libexec/PlistBuddy -c "Add OverrideBuildSettings dict" "${SWIFT_TOOLCHAIN_INFO_PLIST}"
/usr/libexec/PlistBuddy -c "Add OverrideBuildSettings:ENABLE_BITCODE string 'NO'" "${SWIFT_TOOLCHAIN_INFO_PLIST}"
/usr/libexec/PlistBuddy -c "Add OverrideBuildSettings:SWIFT_DISABLE_REQUIRED_ARCLITE string 'YES'" "${SWIFT_TOOLCHAIN_INFO_PLIST}"
/usr/libexec/PlistBuddy -c "Add OverrideBuildSettings:SWIFT_LINK_OBJC_RUNTIME string 'YES'" "${SWIFT_TOOLCHAIN_INFO_PLIST}"
chmod a+r "${SWIFT_TOOLCHAIN_INFO_PLIST}"