| // Copyright 2019 The Bazel Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package com.google.devtools.build.lib.buildtool.buildevent; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.devtools.build.lib.cmdline.PackageIdentifier; |
| import com.google.devtools.build.lib.vfs.Root; |
| import java.util.Optional; |
| import javax.annotation.Nullable; |
| |
| /** |
| * Event fired after the execution root directory has been prepared for the execution phase of a |
| * build. The event contains a package roots map for the symlink forest (i.e. the symlinks to source |
| * directory roots) which was prepared in the execution root directory. The package roots map may be |
| * empty (if {@link SkyframeExecutor#getForcedSingleSourceRootIfNoExecrootSymlinkCreation} is |
| * non-null), indicating that a source symlink forest was not needed. |
| */ |
| public class ExecRootPreparedEvent { |
| @Nullable private final ImmutableMap<PackageIdentifier, Root> packageRootsMap; |
| public static final ExecRootPreparedEvent NO_PACKAGE_ROOTS_MAP = new ExecRootPreparedEvent(); |
| |
| public ExecRootPreparedEvent(Optional<ImmutableMap<PackageIdentifier, Root>> packageRootsMap) { |
| this.packageRootsMap = packageRootsMap.orElse(null); |
| ; |
| } |
| |
| /** Constructs an event indicating that the source symlink forest should not be planted. */ |
| private ExecRootPreparedEvent() { |
| this.packageRootsMap = null; |
| } |
| |
| public Optional<ImmutableMap<PackageIdentifier, Root>> getPackageRootsMap() { |
| return Optional.ofNullable(packageRootsMap); |
| } |
| } |