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build-script
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#!/usr/bin/env python
# utils/build-script - The ultimate tool for building Swift -*- python -*-
#
# This source file is part of the Swift.org open source project
#
# Copyright (c) 2014 - 2017 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
# See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
from __future__ import print_function
import argparse
import os
import pipes
import platform
import sys
import time
from build_swift import defaults
from build_swift import driver_arguments
from build_swift import presets
from build_swift.migration import migrate_swift_sdks
from swift_build_support.swift_build_support import (
arguments,
debug,
diagnostics,
migration,
products,
shell,
tar,
targets,
workspace
)
from swift_build_support.swift_build_support.SwiftBuildSupport import (
HOME,
SWIFT_BUILD_ROOT,
SWIFT_REPO_NAME,
SWIFT_SOURCE_ROOT,
)
from swift_build_support.swift_build_support.cmake import CMake
from swift_build_support.swift_build_support.targets import \
StdlibDeploymentTarget
from swift_build_support.swift_build_support.toolchain import host_toolchain
build_script_impl = os.path.join(
SWIFT_SOURCE_ROOT, SWIFT_REPO_NAME, "utils", "build-script-impl")
def exit_rejecting_arguments(message, parser=None):
print(message, file=sys.stderr)
if parser:
parser.print_usage(sys.stderr)
sys.exit(2) # 2 is the same as `argparse` error exit code.
def call_without_sleeping(command, env=None, dry_run=False, echo=False):
"""
Execute a command during which system sleep is disabled.
By default, this ignores the state of the `shell.dry_run` flag.
"""
# Disable system sleep, if possible.
if platform.system() == 'Darwin':
# Don't mutate the caller's copy of the arguments.
command = ["caffeinate"] + list(command)
shell.call(command, env=env, dry_run=dry_run, echo=echo)
class HostSpecificConfiguration(object):
"""Configuration information for an individual host."""
def __init__(self, host_target, invocation):
"""Initialize for the given `host_target`."""
# Compute the set of deployment targets to configure/build.
args = invocation.args
if host_target == args.host_target:
# This host is the user's desired product, so honor the requested
# set of targets to configure/build.
stdlib_targets_to_configure = args.stdlib_deployment_targets
if "all" in args.build_stdlib_deployment_targets:
stdlib_targets_to_build = set(stdlib_targets_to_configure)
else:
stdlib_targets_to_build = set(
args.build_stdlib_deployment_targets).intersection(
set(args.stdlib_deployment_targets))
else:
# Otherwise, this is a host we are building as part of
# cross-compiling, so we only need the target itself.
stdlib_targets_to_configure = [host_target]
stdlib_targets_to_build = set(stdlib_targets_to_configure)
# Compute the lists of **CMake** targets for each use case (configure
# vs. build vs. run) and the SDKs to configure with.
self.sdks_to_configure = set()
self.swift_stdlib_build_targets = []
self.swift_test_run_targets = []
self.swift_benchmark_build_targets = []
self.swift_benchmark_run_targets = []
for deployment_target_name in stdlib_targets_to_configure:
# Get the target object.
deployment_target = StdlibDeploymentTarget.get_target_for_name(
deployment_target_name)
if deployment_target is None:
diagnostics.fatal("unknown target: %r" % (
deployment_target_name,))
# Add the SDK to use.
deployment_platform = deployment_target.platform
self.sdks_to_configure.add(deployment_platform.sdk_name)
# If we aren't actually building this target (only configuring
# it), do nothing else.
if deployment_target_name not in stdlib_targets_to_build:
continue
# Compute which actions are desired.
build = (
deployment_platform not in invocation.platforms_to_skip_build)
test = (
deployment_platform not in invocation.platforms_to_skip_test)
test_host_only = None
dt_supports_benchmark = deployment_target.supports_benchmark
build_benchmarks = build and dt_supports_benchmark
build_external_benchmarks = all([build, dt_supports_benchmark,
args.build_external_benchmarks])
# FIXME: Note, `build-script-impl` computed a property here
# w.r.t. testing, but it was actually unused.
# For platforms which normally require a connected device to
# test, the default behavior is to run tests that only require
# the host (i.e., they do not attempt to execute).
if deployment_platform.is_darwin and \
deployment_platform.is_embedded and \
not deployment_platform.is_simulator:
if deployment_platform not in \
invocation.platforms_to_skip_test_host:
test_host_only = True
test = True
else:
test = False
name = deployment_target.name
for skip_test_arch in invocation.platforms_archs_to_skip_test:
if deployment_target.name == skip_test_arch.name:
test = False
if build:
# Validation and long tests require building the full standard
# library, whereas the other targets can build a slightly
# smaller subset which is faster to build.
if args.build_swift_stdlib_unittest_extra or \
args.validation_test or args.long_test:
self.swift_stdlib_build_targets.append(
"swift-stdlib-" + name)
else:
self.swift_stdlib_build_targets.append(
"swift-test-stdlib-" + name)
if build_benchmarks:
self.swift_benchmark_build_targets.append(
"swift-benchmark-" + name)
# FIXME: This probably should respect `args.benchmark`, but
# a typo in build-script-impl meant we always would do this.
self.swift_benchmark_run_targets.append(
"check-swift-benchmark-" + name)
if build_external_benchmarks:
# Add support for the external benchmarks.
self.swift_benchmark_build_targets.append(
"swift-benchmark-{}-external".format(name))
self.swift_benchmark_run_targets.append(
"check-swift-benchmark-{}-external".format(name))
if test:
if test_host_only:
suffix = "-non-executable"
else:
suffix = ""
subset_suffix = ""
if args.validation_test and args.long_test:
subset_suffix = "-all"
elif args.validation_test:
subset_suffix = "-validation"
elif args.long_test:
subset_suffix = "-only_long"
else:
subset_suffix = ""
self.swift_test_run_targets.append("check-swift{}{}-{}".format(
subset_suffix, suffix, name))
if args.test_optimized and not test_host_only:
self.swift_test_run_targets.append(
"check-swift{}-optimize-{}".format(
subset_suffix, name))
if args.test_optimize_for_size and not test_host_only:
self.swift_test_run_targets.append(
"check-swift{}-optimize_size-{}".format(
subset_suffix, name))
class BuildScriptInvocation(object):
"""Represent a single build script invocation."""
@staticmethod
def validate_arguments(toolchain, args):
if toolchain.cc is None or toolchain.cxx is None:
diagnostics.fatal(
"can't find clang (please install clang-3.5 or a "
"later version)")
if toolchain.cmake is None:
diagnostics.fatal("can't find CMake (please install CMake)")
if args.distcc:
if toolchain.distcc is None:
diagnostics.fatal(
"can't find distcc (please install distcc)")
if toolchain.distcc_pump is None:
diagnostics.fatal(
"can't find distcc-pump (please install distcc-pump)")
if args.host_target is None or args.stdlib_deployment_targets is None:
diagnostics.fatal("unknown operating system")
if args.symbols_package:
if not os.path.isabs(args.symbols_package):
print(
'--symbols-package must be an absolute path '
'(was \'{}\')'.format(args.symbols_package))
return 1
if not args.install_symroot:
diagnostics.fatal(
"--install-symroot is required when specifying "
"--symbols-package.")
if args.android:
if args.android_ndk is None or \
args.android_api_level is None or \
args.android_icu_uc is None or \
args.android_icu_uc_include is None or \
args.android_icu_i18n is None or \
args.android_icu_i18n_include is None:
diagnostics.fatal(
"when building for Android, --android-ndk, "
"--android-ndk-version, --android-icu-uc, "
"--android-icu-uc-include, --android-icu-i18n, "
"and --android-icu-i18n-include must be specified")
@staticmethod
def apply_default_arguments(toolchain, args):
# Infer if ninja is required
ninja_required = (
args.cmake_generator == 'Ninja' or args.build_foundation)
if ninja_required and toolchain.ninja is None:
args.build_ninja = True
# Set the default stdlib-deployment-targets, if none were provided.
if args.stdlib_deployment_targets is None:
stdlib_targets = \
StdlibDeploymentTarget.default_stdlib_deployment_targets()
args.stdlib_deployment_targets = [
target.name for target in stdlib_targets]
# SwiftPM and XCTest have a dependency on Foundation.
# On OS X, Foundation is built automatically using xcodebuild.
# On Linux, we must ensure that it is built manually.
if ((args.build_swiftpm or args.build_xctest) and
platform.system() != "Darwin"):
args.build_foundation = True
# Foundation has a dependency on libdispatch.
# On OS X, libdispatch is provided by the OS.
# On Linux, we must ensure that it is built manually.
if (args.build_foundation and
platform.system() != "Darwin"):
args.build_libdispatch = True
if args.build_subdir is None:
args.build_subdir = \
workspace.compute_build_subdir(args)
# --test-paths implies --test and/or --validation-test
# depending on what directories/files have been specified.
if args.test_paths:
for path in args.test_paths:
if path.startswith('test'):
args.test = True
elif path.startswith('validation-test'):
args.test = True
args.validation_test = True
# Add optional stdlib-deployment-targets
if args.android:
args.stdlib_deployment_targets.append(
StdlibDeploymentTarget.Android.armv7.name)
# Infer platform flags from manually-specified configure targets.
# This doesn't apply to Darwin platforms, as they are
# already configured. No building without the platform flag, though.
android_tgts = [tgt for tgt in args.stdlib_deployment_targets
if StdlibDeploymentTarget.Android.contains(tgt)]
if not args.android and len(android_tgts) > 0:
args.android = True
args.build_android = False
# ---
def __init__(self, toolchain, args):
self.toolchain = toolchain
self.args = args
self.workspace = workspace.Workspace(
source_root=SWIFT_SOURCE_ROOT,
build_root=os.path.join(SWIFT_BUILD_ROOT, args.build_subdir))
# Compute derived information from the arguments.
#
# FIXME: We should move the platform-derived arguments to be entirely
# data driven, so that we can eliminate this code duplication and just
# iterate over all supported platforms.
self.platforms_to_skip_build = set()
if not args.build_linux:
self.platforms_to_skip_build.add(StdlibDeploymentTarget.Linux)
if not args.build_freebsd:
self.platforms_to_skip_build.add(StdlibDeploymentTarget.FreeBSD)
if not args.build_cygwin:
self.platforms_to_skip_build.add(StdlibDeploymentTarget.Cygwin)
if not args.build_osx:
self.platforms_to_skip_build.add(StdlibDeploymentTarget.OSX)
if not args.build_ios_device:
self.platforms_to_skip_build.add(StdlibDeploymentTarget.iOS)
if not args.build_ios_simulator:
self.platforms_to_skip_build.add(
StdlibDeploymentTarget.iOSSimulator)
if not args.build_tvos_device:
self.platforms_to_skip_build.add(StdlibDeploymentTarget.AppleTV)
if not args.build_tvos_simulator:
self.platforms_to_skip_build.add(
StdlibDeploymentTarget.AppleTVSimulator)
if not args.build_watchos_device:
self.platforms_to_skip_build.add(StdlibDeploymentTarget.AppleWatch)
if not args.build_watchos_simulator:
self.platforms_to_skip_build.add(
StdlibDeploymentTarget.AppleWatchSimulator)
if not args.build_android:
self.platforms_to_skip_build.add(StdlibDeploymentTarget.Android)
self.platforms_to_skip_test = set()
self.platforms_archs_to_skip_test = set()
if not args.test_linux:
self.platforms_to_skip_test.add(StdlibDeploymentTarget.Linux)
if not args.test_freebsd:
self.platforms_to_skip_test.add(StdlibDeploymentTarget.FreeBSD)
if not args.test_cygwin:
self.platforms_to_skip_test.add(StdlibDeploymentTarget.Cygwin)
if not args.test_osx:
self.platforms_to_skip_test.add(StdlibDeploymentTarget.OSX)
if not args.test_ios_host:
self.platforms_to_skip_test.add(StdlibDeploymentTarget.iOS)
else:
exit_rejecting_arguments("error: iOS device tests are not " +
"supported in open-source Swift.")
if not args.test_ios_simulator:
self.platforms_to_skip_test.add(
StdlibDeploymentTarget.iOSSimulator)
if not args.test_ios_32bit_simulator:
self.platforms_archs_to_skip_test.add(
StdlibDeploymentTarget.iOSSimulator.i386)
if not args.test_tvos_host:
self.platforms_to_skip_test.add(StdlibDeploymentTarget.AppleTV)
else:
exit_rejecting_arguments("error: tvOS device tests are not " +
"supported in open-source Swift.")
if not args.test_tvos_simulator:
self.platforms_to_skip_test.add(
StdlibDeploymentTarget.AppleTVSimulator)
if not args.test_watchos_host:
self.platforms_to_skip_test.add(StdlibDeploymentTarget.AppleWatch)
else:
exit_rejecting_arguments("error: watchOS device tests are not " +
"supported in open-source Swift.")
if not args.test_watchos_simulator:
self.platforms_to_skip_test.add(
StdlibDeploymentTarget.AppleWatchSimulator)
if not args.test_android_host:
self.platforms_to_skip_test.add(StdlibDeploymentTarget.Android)
self.platforms_to_skip_test_host = set()
if not args.test_ios_host:
self.platforms_to_skip_test_host.add(StdlibDeploymentTarget.iOS)
if not args.test_tvos_host:
self.platforms_to_skip_test_host.add(
StdlibDeploymentTarget.AppleTV)
if not args.test_watchos_host:
self.platforms_to_skip_test_host.add(
StdlibDeploymentTarget.AppleWatch)
def initialize_runtime_environment(self):
"""Change the program environment for building."""
# Set an appropriate default umask.
os.umask(0o022)
if 'SDKROOT' in os.environ:
print('NOTE: Environment variable SDKROOT is set to "{}"'
.format(os.environ['SDKROOT']))
# Unset environment variables that might affect how tools behave.
for v in [
'MAKEFLAGS',
'MACOSX_DEPLOYMENT_TARGET',
'IPHONEOS_DEPLOYMENT_TARGET',
'TVOS_DEPLOYMENT_TARGET',
'WATCHOS_DEPLOYMENT_TARGET']:
os.environ.pop(v, None)
def build_ninja(self):
if not os.path.exists(self.workspace.source_dir("ninja")):
diagnostics.fatal(
"can't find source directory for ninja "
"(tried %s)" % (self.workspace.source_dir("ninja")))
ninja_build = products.Ninja(
args=self.args,
toolchain=self.toolchain,
source_dir=self.workspace.source_dir("ninja"),
build_dir=self.workspace.build_dir("build", "ninja"))
ninja_build.do_build()
self.toolchain.ninja = ninja_build.ninja_bin_path
def convert_to_impl_arguments(self):
"""convert_to_impl_arguments() -> (env, args)
Convert the invocation to an environment and list of arguments suitable
for invoking `build-script-impl`.
"""
# Create local shadows, for convenience.
args = self.args
toolchain = self.toolchain
cmake = CMake(args=args,
toolchain=self.toolchain)
impl_args = [
"--workspace", self.workspace.source_root,
"--build-dir", self.workspace.build_root,
"--install-prefix", args.install_prefix,
"--host-target", args.host_target,
"--stdlib-deployment-targets",
" ".join(args.stdlib_deployment_targets),
"--host-cc", toolchain.cc,
"--host-cxx", toolchain.cxx,
"--darwin-xcrun-toolchain", args.darwin_xcrun_toolchain,
"--darwin-deployment-version-osx=%s" % (
args.darwin_deployment_version_osx),
"--darwin-deployment-version-ios=%s" % (
args.darwin_deployment_version_ios),
"--darwin-deployment-version-tvos=%s" % (
args.darwin_deployment_version_tvos),
"--darwin-deployment-version-watchos=%s" % (
args.darwin_deployment_version_watchos),
"--cmake", toolchain.cmake,
"--cmark-build-type", args.cmark_build_variant,
"--llvm-build-type", args.llvm_build_variant,
"--swift-build-type", args.swift_build_variant,
"--swift-stdlib-build-type", args.swift_stdlib_build_variant,
"--lldb-build-type", args.lldb_build_variant,
"--lldb-build-with-xcode", args.lldb_build_with_xcode,
"--foundation-build-type", args.foundation_build_variant,
"--libdispatch-build-type", args.libdispatch_build_variant,
"--libicu-build-type", args.libicu_build_variant,
"--xctest-build-type", args.build_variant,
"--swiftpm-build-type", args.build_variant,
"--llbuild-build-type", args.build_variant,
"--swift-enable-assertions", str(args.swift_assertions).lower(),
"--swift-stdlib-enable-assertions", str(
args.swift_stdlib_assertions).lower(),
"--swift-analyze-code-coverage", str(
args.swift_analyze_code_coverage).lower(),
"--llbuild-enable-assertions", str(
args.llbuild_assertions).lower(),
"--cmake-generator", args.cmake_generator,
"--build-jobs", str(args.build_jobs),
"--common-cmake-options=%s" % ' '.join(
pipes.quote(opt) for opt in cmake.common_options()),
"--build-args=%s" % ' '.join(
pipes.quote(arg) for arg in cmake.build_args()),
]
# Compute any product specific cmake arguments.
for product_class in self.compute_product_classes():
product_name = product_class.product_name()
product_source_name = product_class.product_source_name()
source_dir = self.workspace.source_dir(product_source_name)
if not os.path.exists(source_dir):
diagnostics.fatal(
"can't find source directory for %s "
"(tried %s)" % (product_name, source_dir))
product = product_class(
args=args,
toolchain=self.toolchain,
source_dir=source_dir,
# FIXME: This is incorrect since it always assumes the host
# target I think?
build_dir=self.workspace.build_dir(
args.host_target, product_name))
cmake_opts = product.cmake_options
# FIXME: We should be using pipes.quote here but we run into issues
# with build-script-impl/cmake not being happy with all of the
# extra "'" in the strings. To fix this easily, we really need to
# just invoke cmake from build-script directly rather than futzing
# with build-script-impl. This makes even more sense since there
# really isn't a security issue here.
impl_args += [
"--%s-cmake-options=%s" % (product_name, ' '.join(cmake_opts))
]
if args.build_stdlib_deployment_targets:
impl_args += [
"--build-stdlib-deployment-targets", " ".join(
args.build_stdlib_deployment_targets)]
if args.cross_compile_hosts:
impl_args += [
"--cross-compile-hosts", " ".join(args.cross_compile_hosts)]
if args.test_paths:
impl_args += ["--test-paths", " ".join(args.test_paths)]
if toolchain.ninja:
impl_args += ["--ninja-bin=%s" % toolchain.ninja]
if args.distcc:
impl_args += [
"--distcc",
"--distcc-pump=%s" % toolchain.distcc_pump
]
# *NOTE* We use normal cmake to pass through tsan/ubsan options. We do
# NOT pass them to build-script-impl.
if args.enable_asan:
impl_args += ["--enable-asan"]
# If we are on linux, disable leak detection when running ASAN. We
# have a separate bot that checks for leaks.
if platform.system() == 'Linux':
os.environ['ASAN_OPTIONS'] = 'detect_leaks=0'
if args.enable_ubsan:
impl_args += ["--enable-ubsan"]
# If we have lsan, we need to export our suppression list. The actual
# passing in of the LSAN flag is done via the normal cmake method. We
# do not pass the flag to build-script-impl.
if args.enable_lsan:
supp_file = os.path.join(SWIFT_SOURCE_ROOT, SWIFT_REPO_NAME,
"utils",
"lsan_leaks_suppression_list.txt")
os.environ['LSAN_OPTIONS'] = 'suppressions={}'.format(supp_file)
if args.verbose_build:
impl_args += ["--verbose-build"]
if args.install_symroot:
impl_args += [
"--install-symroot", os.path.abspath(args.install_symroot)
]
if args.skip_build:
impl_args += ["--skip-build-cmark",
"--skip-build-llvm",
"--skip-build-swift"]
if not args.build_benchmarks:
impl_args += ["--skip-build-benchmarks"]
# Currently we do not build external benchmarks by default.
if args.build_external_benchmarks:
impl_args += ["--skip-build-external-benchmarks=0"]
if not args.build_foundation:
impl_args += ["--skip-build-foundation"]
if not args.build_xctest:
impl_args += ["--skip-build-xctest"]
if not args.build_lldb:
impl_args += ["--skip-build-lldb"]
if not args.build_llbuild:
impl_args += ["--skip-build-llbuild"]
if not args.build_libdispatch:
impl_args += ["--skip-build-libdispatch"]
if not args.build_libicu:
impl_args += ["--skip-build-libicu"]
if not args.build_swiftpm:
impl_args += ["--skip-build-swiftpm"]
if not args.build_playgroundsupport:
impl_args += ["--skip-build-playgroundsupport"]
if args.build_swift_dynamic_stdlib:
impl_args += ["--build-swift-dynamic-stdlib"]
if args.build_swift_static_stdlib:
impl_args += ["--build-swift-static-stdlib"]
if args.build_swift_stdlib_unittest_extra:
impl_args += ["--build-swift-stdlib-unittest-extra"]
if args.build_swift_dynamic_sdk_overlay:
impl_args += ["--build-swift-dynamic-sdk-overlay"]
if args.build_swift_static_sdk_overlay:
impl_args += ["--build-swift-static-sdk-overlay"]
if not args.build_linux:
impl_args += ["--skip-build-linux"]
if not args.build_freebsd:
impl_args += ["--skip-build-freebsd"]
if not args.build_cygwin:
impl_args += ["--skip-build-cygwin"]
if not args.build_osx:
impl_args += ["--skip-build-osx"]
if not args.build_ios_device:
impl_args += ["--skip-build-ios-device"]
if not args.build_ios_simulator:
impl_args += ["--skip-build-ios-simulator"]
if not args.build_tvos_device:
impl_args += ["--skip-build-tvos-device"]
if not args.build_tvos_simulator:
impl_args += ["--skip-build-tvos-simulator"]
if not args.build_watchos_device:
impl_args += ["--skip-build-watchos-device"]
if not args.build_watchos_simulator:
impl_args += ["--skip-build-watchos-simulator"]
if not args.build_android:
impl_args += ["--skip-build-android"]
if not args.test and not args.long_test:
impl_args += ["--skip-test-swift"]
if not args.test:
impl_args += ["--skip-test-cmark",
"--skip-test-lldb",
"--skip-test-llbuild",
"--skip-test-swiftpm",
"--skip-test-xctest",
"--skip-test-foundation",
"--skip-test-libdispatch",
"--skip-test-libicu",
"--skip-test-playgroundsupport"]
if not args.test_linux:
impl_args += ["--skip-test-linux"]
if not args.test_freebsd:
impl_args += ["--skip-test-freebsd"]
if not args.test_cygwin:
impl_args += ["--skip-test-cygwin"]
if not args.test_osx:
impl_args += ["--skip-test-osx"]
if not args.test_ios_host:
impl_args += ["--skip-test-ios-host"]
if not args.test_ios_simulator:
impl_args += ["--skip-test-ios-simulator"]
if not args.test_ios_32bit_simulator:
impl_args += ["--skip-test-ios-32bit-simulator"]
if not args.test_tvos_host:
impl_args += ["--skip-test-tvos-host"]
if not args.test_tvos_simulator:
impl_args += ["--skip-test-tvos-simulator"]
if not args.test_watchos_host:
impl_args += ["--skip-test-watchos-host"]
if not args.test_watchos_simulator:
impl_args += ["--skip-test-watchos-simulator"]
if not args.test_android_host:
impl_args += ["--skip-test-android-host"]
if args.build_runtime_with_host_compiler:
impl_args += ["--build-runtime-with-host-compiler"]
if args.validation_test:
impl_args += ["--validation-test"]
if args.long_test:
impl_args += ["--long-test"]
if not args.benchmark:
impl_args += ["--skip-test-benchmarks"]
if not args.test_optimized:
impl_args += ["--skip-test-optimized"]
if not args.test_optimize_for_size:
impl_args += ["--skip-test-optimize-for-size"]
if args.android:
impl_args += [
"--android-ndk", args.android_ndk,
"--android-api-level", args.android_api_level,
"--android-ndk-gcc-version",
args.android_ndk_gcc_version,
"--android-icu-uc", args.android_icu_uc,
"--android-icu-uc-include", args.android_icu_uc_include,
"--android-icu-i18n", args.android_icu_i18n,
"--android-icu-i18n-include", args.android_icu_i18n_include,
]
if args.android_deploy_device_path:
impl_args += [
"--android-deploy-device-path",
args.android_deploy_device_path,
]
if platform.system() == 'Darwin':
impl_args += [
"--toolchain-prefix",
targets.darwin_toolchain_prefix(
args.install_prefix),
"--host-lipo", toolchain.lipo,
]
if toolchain.libtool is not None:
impl_args += [
"--host-libtool", toolchain.libtool,
]
# If we have extra_swift_args, combine all of them together and then
# add them as one command.
if args.extra_swift_args:
impl_args += [
"--extra-swift-args",
";".join(args.extra_swift_args)]
# If we have extra_cmake_options, combine all of them together and then
# add them as one command.
if args.extra_cmake_options:
impl_args += [
"--extra-cmake-options=%s" % ' '.join(
pipes.quote(opt) for opt in args.extra_cmake_options)
]
if args.lto_type is not None:
impl_args += [
"--llvm-enable-lto=%s" % args.lto_type,
"--swift-tools-enable-lto=%s" % args.lto_type
]
if args.llvm_max_parallel_lto_link_jobs is not None:
impl_args += [
"--llvm-num-parallel-lto-link-jobs=%s" %
min(args.llvm_max_parallel_lto_link_jobs, args.build_jobs)
]
if args.swift_tools_max_parallel_lto_link_jobs is not None:
impl_args += [
"--swift-tools-num-parallel-lto-link-jobs=%s" %
min(args.swift_tools_max_parallel_lto_link_jobs,
args.build_jobs)
]
impl_args += args.build_script_impl_args
if args.dry_run:
impl_args += ["--dry-run"]
if args.clang_profile_instr_use:
impl_args += [
"--clang-profile-instr-use=%s" %
os.path.abspath(args.clang_profile_instr_use)
]
if args.lit_args:
impl_args += ["--llvm-lit-args=%s" % args.lit_args]
if args.coverage_db:
impl_args += [
"--coverage-db=%s" %
os.path.abspath(args.coverage_db)
]
# Compute the set of host-specific variables, which we pass through to
# the build script via environment variables.
host_specific_variables = self.compute_host_specific_variables()
impl_env = {}
for (host_target, options) in host_specific_variables.items():
for (name, value) in options.items():
# We mangle into an environment variable we can easily evaluate
# from the `build-script-impl`.
impl_env["HOST_VARIABLE_{}__{}".format(
host_target.replace("-", "_"), name)] = value
return (impl_env, impl_args)
def compute_host_specific_variables(self):
"""compute_host_specific_variables(args) -> dict
Compute the host-specific options, organized as a dictionary keyed by
host of options.
"""
args = self.args
options = {}
for host_target in [args.host_target] + args.cross_compile_hosts:
# Compute the host specific configuration.
config = HostSpecificConfiguration(host_target, self)
# Convert into `build-script-impl` style variables.
options[host_target] = {
"SWIFT_SDKS": " ".join(sorted(
config.sdks_to_configure)),
"SWIFT_STDLIB_TARGETS": " ".join(
config.swift_stdlib_build_targets),
"SWIFT_BENCHMARK_TARGETS": " ".join(
config.swift_benchmark_build_targets),
"SWIFT_RUN_BENCHMARK_TARGETS": " ".join(
config.swift_benchmark_run_targets),
"SWIFT_TEST_TARGETS": " ".join(
config.swift_test_run_targets),
}
return options
def compute_product_classes(self):
"""compute_product_classes() -> list
Compute the list of all Product classes used in this build. This list
is constructed in dependency order.
"""
# FIXME: This is a weird division (returning a list of class objects),
# but it matches the existing structure of the `build-script-impl`.
product_classes = []
product_classes.append(products.CMark)
product_classes.append(products.LLVM)
if self.args.build_libicu:
product_classes.append(products.LibICU)
product_classes.append(products.Swift)
if self.args.build_lldb:
product_classes.append(products.LLDB)
if self.args.build_llbuild:
product_classes.append(products.LLBuild)
if self.args.build_libdispatch:
product_classes.append(products.LibDispatch)
if self.args.build_foundation:
product_classes.append(products.Foundation)
if self.args.build_xctest:
product_classes.append(products.XCTest)
if self.args.build_swiftpm:
product_classes.append(products.SwiftPM)
return product_classes
def execute(self):
"""Execute the invocation with the configured arguments."""
# Convert to a build-script-impl invocation.
(impl_env, impl_args) = self.convert_to_impl_arguments()
# If using the legacy implementation, delegate all behavior to
# `build-script-impl`.
if self.args.legacy_impl:
# Execute the underlying build script implementation.
call_without_sleeping([build_script_impl] + impl_args,
env=impl_env, echo=True)
return
# Otherwise, we compute and execute the individual actions ourselves.
def execute_one_impl_action(host=None, product_class=None, name=None):
if host is None:
assert (product_class is None and
name == "merged-hosts-lipo"), "invalid action"
action_name = name
elif product_class is None:
assert name == "package", "invalid action"
action_name = "{}-{}".format(host.name, name)
else:
assert name is not None, "invalid action"
action_name = "{}-{}-{}".format(
host.name, product_class.product_name(), name)
call_without_sleeping(
[build_script_impl] + impl_args + [
"--only-execute", action_name],
env=impl_env, echo=self.args.verbose_build)
# Compute the list of hosts to operate on.
all_host_names = [
self.args.host_target] + self.args.cross_compile_hosts
all_hosts = [StdlibDeploymentTarget.get_target_for_name(name)
for name in all_host_names]
# Compute the list of product classes to operate on.
#
# FIXME: This should really be per-host, but the current structure
# matches that of `build-script-impl`.
product_classes = self.compute_product_classes()
# Execute each "pass".
# Build...
for host_target in all_hosts:
# FIXME: We should only compute these once.
config = HostSpecificConfiguration(host_target.name, self)
print("Building the standard library for: {}".format(
" ".join(config.swift_stdlib_build_targets)))
if config.swift_test_run_targets and (
self.args.test or self.args.long_test):
print("Running Swift tests for: {}".format(
" ".join(config.swift_test_run_targets)))
if config.swift_benchmark_run_targets and self.args.benchmark:
print("Running Swift benchmarks for: {}".format(
" ".join(config.swift_benchmark_run_targets)))
for product_class in product_classes:
execute_one_impl_action(host_target, product_class, "build")
# Test...
for host_target in all_hosts:
for product_class in product_classes:
execute_one_impl_action(host_target, product_class, "test")
# Install...
for host_target in all_hosts:
for product_class in product_classes:
execute_one_impl_action(host_target, product_class, "install")
# Package...
for host_target in all_hosts:
execute_one_impl_action(host_target, name="package")
# Lipo...
execute_one_impl_action(name="merged-hosts-lipo")
# Provide a short delay so accidentally invoked clean builds can be canceled.
def clean_delay():
sys.stdout.write('Starting clean build in ')
for i in range(3, 0, -1):
sys.stdout.write('\b%d' % i)
sys.stdout.flush()
time.sleep(1)
print('\b\b\b\bnow.')
# Main entry point for the preset mode.
def main_preset():
parser = argparse.ArgumentParser(
formatter_class=argparse.RawDescriptionHelpFormatter,
description="""Builds Swift using a preset.""")
parser.add_argument(
"-n", "--dry-run",
help="print the commands that would be executed, but do not execute "
"them",
action="store_true",
default=False)
parser.add_argument(
"--preset-file",
help="load presets from the specified file",
metavar="PATH",
action="append",
dest="preset_file_names",
default=[])
parser.add_argument(
"--preset",
help="use the specified option preset",
metavar="NAME")
parser.add_argument(
"--show-presets",
help="list all presets and exit",
action=arguments.action.optional_bool)
parser.add_argument(
"--distcc",
help="use distcc",
action=arguments.action.optional_bool)
parser.add_argument(
"-j", "--jobs",
help="the number of parallel build jobs to use",
type=int,
dest="build_jobs")
parser.add_argument(
"preset_substitutions_raw",
help="'name=value' pairs that are substituted in the preset",
nargs="*",
metavar="SUBSTITUTION")
parser.add_argument(
"--expand-build-script-invocation",
help="Print the expanded build-script invocation generated "
"by the preset, but do not run the preset",
action=arguments.action.optional_bool)
args = parser.parse_args()
if len(args.preset_file_names) == 0:
args.preset_file_names = [
os.path.join(
SWIFT_SOURCE_ROOT, SWIFT_REPO_NAME, "utils",
"build-presets.ini")
]
user_presets_file = os.path.join(HOME, '.swift-build-presets')
if os.path.isfile(user_presets_file):
args.preset_file_names.append(user_presets_file)
preset_parser = presets.PresetParser()
try:
preset_parser.read(args.preset_file_names)
except presets.Error as e:
diagnostics.fatal(e.message)
if args.show_presets:
for name in sorted(preset_parser.preset_names(),
key=lambda name: name.lower()):
print(name)