| // Copyright 2024 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.vfs; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import com.google.devtools.build.lib.actions.Action; |
| import com.google.devtools.build.lib.actions.RemoteArtifactChecker; |
| import com.google.devtools.build.lib.actions.cache.OutputMetadataStore; |
| import com.google.devtools.build.lib.analysis.BlazeDirectories; |
| import com.google.devtools.build.lib.events.EventHandler; |
| import com.google.devtools.build.lib.server.FailureDetails.Execution; |
| import com.google.devtools.build.lib.server.FailureDetails.Execution.Code; |
| import com.google.devtools.build.lib.server.FailureDetails.FailureDetail; |
| import com.google.devtools.build.lib.util.AbruptExitException; |
| import com.google.devtools.build.lib.util.DetailedExitCode; |
| import java.io.IOException; |
| import java.util.Map; |
| import java.util.UUID; |
| import javax.annotation.Nullable; |
| |
| /** |
| * A minimal local-only {@link OutputService}. |
| * |
| * <p>This is used by default when no {@link com.google.devtools.build.lib.runtime.BlazeModule} |
| * {@linkplain com.google.devtools.build.lib.runtime.BlazeModule#getOutputService provides} an |
| * {@link OutputService}. |
| */ |
| public final class LocalOutputService implements OutputService { |
| private final BlazeDirectories directories; |
| |
| public LocalOutputService(BlazeDirectories directories) { |
| this.directories = checkNotNull(directories); |
| } |
| |
| @Override |
| public String getFileSystemName(String outputBaseFileSystemName) { |
| return outputBaseFileSystemName; |
| } |
| |
| @Override |
| public boolean isLocalOnly() { |
| return true; |
| } |
| |
| @Override |
| public ModifiedFileSet startBuild( |
| UUID buildId, String workspaceName, EventHandler eventHandler, boolean finalizeActions) |
| throws AbruptExitException { |
| Path outputPath = directories.getOutputPath(workspaceName); |
| Path localOutputPath = directories.getLocalOutputPath(); |
| |
| if (outputPath.isSymbolicLink()) { |
| try { |
| // Remove the existing symlink first. |
| outputPath.delete(); |
| if (localOutputPath.exists()) { |
| // Pre-existing local output directory. Move to outputPath. |
| localOutputPath.renameTo(outputPath); |
| } |
| } catch (IOException e) { |
| throw new AbruptExitException( |
| DetailedExitCode.of( |
| FailureDetail.newBuilder() |
| .setMessage( |
| "Couldn't handle local output directory symlinks: " + e.getMessage()) |
| .setExecution( |
| Execution.newBuilder().setCode(Code.LOCAL_OUTPUT_DIRECTORY_SYMLINK_FAILURE)) |
| .build()), |
| e); |
| } |
| } |
| return ModifiedFileSet.EVERYTHING_MODIFIED; |
| } |
| |
| @Override |
| public void finalizeBuild(boolean buildSuccessful) {} |
| |
| @Override |
| public void finalizeAction(Action action, OutputMetadataStore outputMetadataStore) {} |
| |
| @Nullable |
| @Override |
| public BatchStat getBatchStatter() { |
| return null; |
| } |
| |
| @Override |
| public boolean canCreateSymlinkTree() { |
| return false; |
| } |
| |
| @Override |
| public void createSymlinkTree( |
| Map<PathFragment, PathFragment> symlinks, PathFragment symlinkTreeRoot) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void clean() {} |
| |
| @Override |
| public RemoteArtifactChecker getRemoteArtifactChecker() { |
| return RemoteArtifactChecker.IGNORE_ALL; |
| } |
| } |