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4edb8d9baa
* Implemented a presets module which includes a more robust and easy to understand parser. Moved the swift-sdks migration code to a new migration module and added testing for both the presets and migration modules. Also converted build-script to use the new presets parser. * Switched the expansion algorithm to resolve mixins in-place (little known feature) and also changed the parser to skip all non-preset sections. Tests are included for these two behaviors. * Re-worked the presets error hierarchy to have more descriptive and information packed exception classes. Also re-worked the PresetParser to catch duplicate preset declarations and duplicate options in a single preset. There's some special shim-code to handle the disconnect between the Python 2 ConfigParser module and the Python 3 update which adds DuplicateOptionError.
85 lines
2.6 KiB
Python
85 lines
2.6 KiB
Python
# This source file is part of the Swift.org open source project
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#
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# Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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# Licensed under Apache License v2.0 with Runtime Library Exception
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#
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# See https://swift.org/LICENSE.txt for license information
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# See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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"""
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Temporary module with functionaly used to migrate away from build-script-impl.
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"""
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from __future__ import absolute_import, unicode_literals
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from swift_build_support.swift_build_support.targets import \
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StdlibDeploymentTarget
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__all__ = [
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'UnknownSDKError',
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'migrate_swift_sdks',
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]
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_SDK_TARGETS = {
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'OSX': StdlibDeploymentTarget.OSX.targets,
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'IOS': StdlibDeploymentTarget.iOS.targets,
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'IOS_SIMULATOR': StdlibDeploymentTarget.iOSSimulator.targets,
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'TVOS': StdlibDeploymentTarget.AppleTV.targets,
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'TVOS_SIMULATOR': StdlibDeploymentTarget.AppleTVSimulator.targets,
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'WATCHOS': StdlibDeploymentTarget.AppleWatch.targets,
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'WATCHOS_SIMULATOR': StdlibDeploymentTarget.AppleWatchSimulator.targets,
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}
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# -----------------------------------------------------------------------------
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class UnknownSDKError(Exception):
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"""Error indicating an unknown SDK was encountered when migrating to target
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triples.
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"""
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pass
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def _swift_sdks_to_stdlib_targets(swift_sdks):
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stdlib_targets = []
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for sdk in swift_sdks:
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sdk_targets = _SDK_TARGETS.get(sdk, None)
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if sdk_targets is None:
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raise UnknownSDKError(sdk)
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stdlib_targets += sdk_targets
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return stdlib_targets
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def migrate_swift_sdks(args):
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"""Migrate usages of the now deprecated `--swift-sdks` option to the new
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`--stdlib-deployment-targets` option, converting Swift SDKs to the
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corresponding targets. Since argument parsing is a last-wins scenario, only
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the last `--swift-sdks` option is migrated, all others are removed.
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This function is a stop-gap to replacing all instances of `--swift-sdks`.
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"""
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swift_sdks_args = [arg for arg in args if arg.startswith('--swift-sdks')]
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if len(swift_sdks_args) < 1:
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return args
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# Only get the last --swift-sdks arg since last-wins
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swift_sdks_arg = swift_sdks_args[-1]
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sdk_list = swift_sdks_arg.split('=')[1].split(';')
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stdlib_targets = _swift_sdks_to_stdlib_targets(sdk_list)
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target_names = ' '.join([target.name for target in stdlib_targets])
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stdlib_targets_arg = '--stdlib-deployment-targets=' + target_names
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args = [arg for arg in args if not arg.startswith('--swift-sdks')]
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args.append(stdlib_targets_arg)
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return args
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