1 files changed, 73 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/exec/FileWriteStrategy.java b/src/main/java/com/google/devtools/build/lib/exec/FileWriteStrategy.java
new file mode 100644
index 0000000000..5dc9914415
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/exec/FileWriteStrategy.java
@@ -0,0 +1,73 @@
+// Copyright 2014 Google Inc. 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.exec;
+
+import com.google.common.collect.Iterables;
+import com.google.devtools.build.lib.actions.ActionExecutionContext;
+import com.google.devtools.build.lib.actions.EnvironmentalExecException;
+import com.google.devtools.build.lib.actions.ExecException;
+import com.google.devtools.build.lib.actions.ExecutionStrategy;
+import com.google.devtools.build.lib.actions.Executor;
+import com.google.devtools.build.lib.actions.ResourceSet;
+import com.google.devtools.build.lib.analysis.actions.AbstractFileWriteAction;
+import com.google.devtools.build.lib.analysis.actions.FileWriteActionContext;
+import com.google.devtools.build.lib.events.EventHandler;
+import com.google.devtools.build.lib.util.io.FileOutErr;
+import com.google.devtools.build.lib.vfs.Path;
+
+import java.io.BufferedOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+/**
+ * A strategy for executing an {@link AbstractFileWriteAction}.
+ */
+@ExecutionStrategy(name = { "local" }, contextType = FileWriteActionContext.class)
+public final class FileWriteStrategy implements FileWriteActionContext {
+
+  public static final Class<FileWriteStrategy> TYPE = FileWriteStrategy.class;
+
+  public FileWriteStrategy() {
+  }
+
+  @Override
+  public void exec(Executor executor, AbstractFileWriteAction action, FileOutErr outErr,
+      ActionExecutionContext actionExecutionContext) throws ExecException, InterruptedException {
+    EventHandler reporter = executor == null ? null : executor.getEventHandler();
+    try {
+      Path outputPath = Iterables.getOnlyElement(action.getOutputs()).getPath();
+      try (OutputStream out = new BufferedOutputStream(outputPath.getOutputStream())) {
+        action.newDeterministicWriter(reporter, executor).writeOutputFile(out);
+      }
+      if (action.makeExecutable()) {
+        outputPath.setExecutable(true);
+      }
+    } catch (IOException e) {
+      throw new EnvironmentalExecException("failed to create file '"
+          + Iterables.getOnlyElement(action.getOutputs()).prettyPrint()
+          + "' due to I/O error: " + e.getMessage(), e);
+    }
+  }
+
+  @Override
+  public ResourceSet estimateResourceConsumption(AbstractFileWriteAction action) {
+    return action.estimateResourceConsumptionLocal();
+  }
+
+  @Override
+  public String strategyLocality(AbstractFileWriteAction action) {
+    return "local";
+  }
+}