From 678f5a0299d2ea5cdd25740f58571bd43f27e1e2 Mon Sep 17 00:00:00 2001
From: janakr <janakr@google.com>
Date: Tue, 27 Feb 2018 12:55:05 -0800
Subject: @AutoCodec WriteBuildInfoHeaderAction.

PiperOrigin-RevId: 187218309
---
 .../lib/rules/cpp/WriteBuildInfoHeaderAction.java  | 44 +++++++++++-----------
 1 file changed, 23 insertions(+), 21 deletions(-)

(limited to 'src/main')

diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/WriteBuildInfoHeaderAction.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/WriteBuildInfoHeaderAction.java
index 03a3594086..e75153a1b5 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/WriteBuildInfoHeaderAction.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/WriteBuildInfoHeaderAction.java
@@ -17,7 +17,6 @@ package com.google.devtools.build.lib.rules.cpp;
 import static java.nio.charset.StandardCharsets.UTF_8;
 
 import com.google.common.base.Preconditions;
-import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Iterables;
 import com.google.devtools.build.lib.actions.ActionExecutionContext;
 import com.google.devtools.build.lib.actions.ActionKeyContext;
@@ -26,6 +25,7 @@ import com.google.devtools.build.lib.actions.Artifact;
 import com.google.devtools.build.lib.analysis.WorkspaceStatusAction;
 import com.google.devtools.build.lib.analysis.actions.AbstractFileWriteAction;
 import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
+import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec;
 import com.google.devtools.build.lib.util.Fingerprint;
 import java.io.IOException;
 import java.io.OutputStream;
@@ -36,45 +36,47 @@ import java.util.LinkedHashMap;
 import java.util.Map;
 
 /**
- * An action that creates a C++ header containing the build information in the
- * form of #define directives.
+ * An action that creates a C++ header containing the build information in the form of #define
+ * directives.
  */
 @Immutable
+@AutoCodec
 public final class WriteBuildInfoHeaderAction extends AbstractFileWriteAction {
   private static final String GUID = "62be38ad-1243-46b9-9948-9bdfa81f8918";
 
-  private final ImmutableList<Artifact> valueArtifacts;
-
   private final boolean writeVolatileInfo;
   private final boolean writeStableInfo;
 
   /**
    * Creates an action that writes a C++ header with the build information.
    *
-   * <p>It reads the set of build info keys from an action context that is usually contributed
-   * to Bazel by the workspace status module, and the value associated with said keys from the
+   * <p>It reads the set of build info keys from an action context that is usually contributed to
+   * Bazel by the workspace status module, and the value associated with said keys from the
    * workspace status files (stable and volatile) written by the workspace status action.
    *
    * <p>Without input artifacts this action uses redacted build information.
-   * @param inputs Artifacts that contain build information, or an empty
-   *        collection to use redacted build information
-   * @param output the C++ header Artifact created by this action
-   * @param writeVolatileInfo whether to write the volatile part of the build
-   *        information to the generated header
-   * @param writeStableInfo whether to write the non-volatile part of the
-   *        build information to the generated header
+   *
+   * @param inputs Artifacts that contain build information, or an empty collection to use redacted
+   *     build information
+   * @param primaryOutput the C++ header Artifact created by this action
+   * @param writeVolatileInfo whether to write the volatile part of the build information to the
+   *     generated header
+   * @param writeStableInfo whether to write the non-volatile part of the build information to the
+   *     generated header
    */
-  public WriteBuildInfoHeaderAction(Collection<Artifact> inputs,
-      Artifact output, boolean writeVolatileInfo, boolean writeStableInfo) {
-    super(ActionOwner.SYSTEM_ACTION_OWNER, inputs, output, /*makeExecutable=*/ false);
-    valueArtifacts = ImmutableList.copyOf(inputs);
+  public WriteBuildInfoHeaderAction(
+      Collection<Artifact> inputs,
+      Artifact primaryOutput,
+      boolean writeVolatileInfo,
+      boolean writeStableInfo) {
+    super(ActionOwner.SYSTEM_ACTION_OWNER, inputs, primaryOutput, /*makeExecutable=*/ false);
     if (!inputs.isEmpty()) {
       // With non-empty inputs we should not generate both volatile and non-volatile data
       // in the same header file.
       Preconditions.checkState(writeVolatileInfo ^ writeStableInfo);
     }
     Preconditions.checkState(
-        output.isConstantMetadata() == (writeVolatileInfo && !inputs.isEmpty()));
+        primaryOutput.isConstantMetadata() == (writeVolatileInfo && !inputs.isEmpty()));
 
     this.writeVolatileInfo = writeVolatileInfo;
     this.writeStableInfo = writeStableInfo;
@@ -95,11 +97,11 @@ public final class WriteBuildInfoHeaderAction extends AbstractFileWriteAction {
     }
 
     final Map<String, String> values = new LinkedHashMap<>();
-    for (Artifact valueFile : valueArtifacts) {
+    for (Artifact valueFile : getInputs()) {
       values.putAll(WorkspaceStatusAction.parseValues(valueFile.getPath()));
     }
 
-    final boolean redacted = valueArtifacts.isEmpty();
+    final boolean redacted = Iterables.isEmpty(getInputs());
 
     return new DeterministicWriter() {
       @Override
-- 
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