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109 lines
3.6 KiB
Python
109 lines
3.6 KiB
Python
# Copyright 2018 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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from contextlib import contextmanager
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from recipe_engine import recipe_api
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class WindowsSDKApi(recipe_api.RecipeApi):
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"""API for using Windows SDK distributed via CIPD."""
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def __init__(self, sdk_properties, *args, **kwargs):
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super(WindowsSDKApi, self).__init__(*args, **kwargs)
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self._sdk_package = sdk_properties['sdk_package']
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self._sdk_version = sdk_properties['sdk_version']
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@contextmanager
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def __call__(self):
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"""Setups the Windows SDK environment.
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This call is a no-op on non-Windows platforms.
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Raises:
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StepFailure or InfraFailure.
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"""
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if not self.m.platform.is_win:
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yield
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return
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try:
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with self.m.context(infra_steps=True):
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sdk_dir = self._ensure_sdk()
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with self.m.context(**self._sdk_env(sdk_dir)):
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yield
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finally:
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# cl.exe automatically starts background mspdbsrv.exe daemon which
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# needs to be manually stopped so Swarming can tidy up after itself.
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self.m.step('taskkill mspdbsrv',
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['taskkill.exe', '/f', '/t', '/im', 'mspdbsrv.exe'])
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def _ensure_sdk(self):
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"""Ensures the Windows SDK CIPD package is installed.
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Returns the directory where the SDK package has been installed.
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Args:
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path (path): Path to a directory.
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version (str): CIPD instance ID, tag or ref.
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"""
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sdk_dir = self.m.path['cache'].join('windows_sdk')
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pkgs = self.m.cipd.EnsureFile()
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pkgs.add_package(self._sdk_package, self._sdk_version)
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self.m.cipd.ensure(sdk_dir, pkgs)
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return sdk_dir
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def _sdk_env(self, sdk_dir):
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"""Constructs the environment for the SDK.
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Returns environment and environment prefixes.
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Args:
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sdk_dir (path): Path to a directory containing the SDK.
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"""
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env = {}
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env_prefixes = {}
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# Load .../win_sdk/bin/SetEnv.${arch}.json to extract the required
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# environment. It contains a dict that looks like this:
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# {
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# "env": {
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# "VAR": [["..", "..", "x"], ["..", "..", "y"]],
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# ...
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# }
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# }
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# All these environment variables need to be added to the environment
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# for the compiler and linker to work.
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filename = 'SetEnv.%s.json' % {32: 'x86', 64: 'x64'}[self.m.platform.bits]
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step_result = self.m.json.read(
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'read %s' % filename,
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sdk_dir.join('win_sdk', 'bin', filename),
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step_test_data=lambda: self.m.json.test_api.output({
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'env': {
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'PATH': [['..', '..', 'win_sdk', 'bin', 'x64']],
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'VSINSTALLDIR': [['..', '..\\']],},}))
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data = step_result.json.output.get('env')
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for key in data:
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# recipes' Path() does not like .., ., \, or /, so this is cumbersome.
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# What we want to do is:
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# [sdk_bin_dir.join(*e) for e in env[k]]
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# Instead do that badly, and rely (but verify) on the fact that the paths
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# are all specified relative to the root, but specified relative to
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# win_sdk/bin (i.e. everything starts with "../../".)
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results = []
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for value in data[key]:
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assert value[0] == '..' and (value[1] == '..' or value[1] == '..\\')
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results.append('%s' % sdk_dir.join(*value[2:]))
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# PATH is special-cased because we don't want to overwrite other things
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# like C:\Windows\System32. Others are replacements because prepending
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# doesn't necessarily makes sense, like VSINSTALLDIR.
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if key.lower() == 'path':
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env_prefixes[key] = results
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else:
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env[key] = ';'.join(results)
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return {'env': env, 'env_prefixes': env_prefixes}
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