From ebafc963884149086bf915da3267f1778270a0ae Mon Sep 17 00:00:00 2001
From: corysmith <corysmith@google.com>
Date: Thu, 24 Aug 2017 21:38:41 +0200
Subject: Enable using a parameter for large lists of resources to link.

RELNOTES: None
PiperOrigin-RevId: 166379334
---
 .../devtools/build/android/AaptCommandBuilder.java | 25 ++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'src/tools/android/java/com/google/devtools/build/android/AaptCommandBuilder.java')

diff --git a/src/tools/android/java/com/google/devtools/build/android/AaptCommandBuilder.java b/src/tools/android/java/com/google/devtools/build/android/AaptCommandBuilder.java
index 6e9c9a41ab..ad645a6fdd 100644
--- a/src/tools/android/java/com/google/devtools/build/android/AaptCommandBuilder.java
+++ b/src/tools/android/java/com/google/devtools/build/android/AaptCommandBuilder.java
@@ -23,9 +23,11 @@ import com.google.common.io.CharStreams;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.Collection;
 import java.util.List;
+import java.util.stream.Collectors;
 import javax.annotation.Nullable;
 
 /**
@@ -110,6 +112,29 @@ public class AaptCommandBuilder {
     return this;
   }
 
+  /**
+   * Adds a flag to the builder multiple times, once for each value in the given collection. {@code
+   * null} values will be skipped. If the collection is empty, nothing will be added. The values
+   * will be added in the source collection's iteration order. See {@link
+   * AaptCommandBuilder#addRepeated(String, Collection)} for more information. If the collection
+   * exceed 200 items, the values will be written to a file and passed as &lt;flag&gt @&lt;file&gt;.
+   */
+  public AaptCommandBuilder addParameterableRepeated(
+      final String flag, Collection<String> values, Path workingDirectory) throws IOException {
+    Preconditions.checkNotNull(flag);
+    Preconditions.checkNotNull(workingDirectory);
+    if (values.size() > 200) {
+      add(
+          flag,
+          "@" + Files.write(
+              Files.createDirectories(workingDirectory).resolve("params" + flag),
+              ImmutableList.of(values.stream().collect(Collectors.joining(" ")))));
+    } else {
+      addRepeated(flag, values);
+    }
+    return this;
+  }
+
   /** Adds the next flag to the builder only if the condition is true. */
   public ConditionalAaptCommandBuilder when(boolean condition) {
     if (condition) {
-- 
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