1 files changed, 122 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/analysis/actions/ParameterFileWriteAction.java b/src/main/java/com/google/devtools/build/lib/analysis/actions/ParameterFileWriteAction.java
new file mode 100644
index 0000000000..fd10e2b2f6
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/analysis/actions/ParameterFileWriteAction.java
@@ -0,0 +1,122 @@
+// 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.analysis.actions;
+
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.collect.ImmutableList;
+import com.google.devtools.build.lib.actions.ActionOwner;
+import com.google.devtools.build.lib.actions.Artifact;
+import com.google.devtools.build.lib.actions.Executor;
+import com.google.devtools.build.lib.actions.ParameterFile.ParameterFileType;
+import com.google.devtools.build.lib.events.EventHandler;
+import com.google.devtools.build.lib.util.Fingerprint;
+import com.google.devtools.build.lib.util.ShellEscaper;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.nio.charset.Charset;
+
+/**
+ * Action to write a parameter file for a {@link CommandLine}.
+ */
+public final class ParameterFileWriteAction extends AbstractFileWriteAction {
+
+  private static final String GUID = "45f678d8-e395-401e-8446-e795ccc6361f";
+
+  private final CommandLine commandLine;
+  private final ParameterFileType type;
+  private final Charset charset;
+
+  /**
+   * Creates a new instance.
+   *
+   * @param owner the action owner
+   * @param output the Artifact that will be created by executing this Action
+   * @param commandLine the contents to be written to the file
+   * @param type the type of the file
+   * @param charset the charset of the file
+   */
+  public ParameterFileWriteAction(ActionOwner owner, Artifact output, CommandLine commandLine,
+      ParameterFileType type, Charset charset) {
+    super(owner, ImmutableList.<Artifact>of(), output, false);
+    this.commandLine = commandLine;
+    this.type = type;
+    this.charset = charset;
+  }
+
+  /**
+   * Returns the list of options written to the parameter file. Don't use this
+   * method outside tests - the list is often huge, resulting in significant
+   * garbage collection overhead.
+   */
+  @VisibleForTesting
+  public Iterable<String> getContents() {
+    return commandLine.arguments();
+  }
+
+  @Override
+  public DeterministicWriter newDeterministicWriter(EventHandler eventHandler, Executor executor) {
+    return new DeterministicWriter() {
+      @Override
+      public void writeOutputFile(OutputStream out) throws IOException {
+        switch (type) {
+          case SHELL_QUOTED :
+            writeContentQuoted(out);
+            break;
+          case UNQUOTED :
+            writeContentUnquoted(out);
+            break;
+          default :
+            throw new AssertionError();
+        }
+      }
+    };
+  }
+
+  /**
+   * Writes the arguments from the list into the parameter file.
+   */
+  private void writeContentUnquoted(OutputStream outputStream) throws IOException {
+    OutputStreamWriter out = new OutputStreamWriter(outputStream, charset);
+    for (String line : commandLine.arguments()) {
+      out.write(line);
+      out.write('\n');
+    }
+    out.flush();
+  }
+
+  /**
+   * Writes the arguments from the list into the parameter file with shell
+   * quoting (if required).
+   */
+  private void writeContentQuoted(OutputStream outputStream) throws IOException {
+    OutputStreamWriter out = new OutputStreamWriter(outputStream, charset);
+    for (String line : ShellEscaper.escapeAll(commandLine.arguments())) {
+      out.write(line);
+      out.write('\n');
+    }
+    out.flush();
+  }
+
+  @Override
+  protected String computeKey() {
+    Fingerprint f = new Fingerprint();
+    f.addString(GUID);
+    f.addString(String.valueOf(makeExecutable));
+    f.addStrings(commandLine.arguments());
+    return f.hexDigestAndReset();
+  }
+}