support params files in dexmerger and dexsharder tools
RELNOTES: None.

PiperOrigin-RevId: 178134833
diff --git a/src/tools/android/java/com/google/devtools/build/android/dexer/DexFileMerger.java b/src/tools/android/java/com/google/devtools/build/android/dexer/DexFileMerger.java
index ba71e23..4f39e16 100644
--- a/src/tools/android/java/com/google/devtools/build/android/dexer/DexFileMerger.java
+++ b/src/tools/android/java/com/google/devtools/build/android/dexer/DexFileMerger.java
@@ -39,10 +39,12 @@
 import com.google.devtools.common.options.OptionEffectTag;
 import com.google.devtools.common.options.OptionsBase;
 import com.google.devtools.common.options.OptionsParser;
+import com.google.devtools.common.options.ShellQuotedParamsFilePreProcessor;
 import java.io.BufferedOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.PrintStream;
+import java.nio.file.FileSystems;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
@@ -194,6 +196,8 @@
 
   public static void main(String[] args) throws Exception {
     OptionsParser optionsParser = OptionsParser.newOptionsParser(Options.class);
+    optionsParser.enableParamsFileSupport(
+        new ShellQuotedParamsFilePreProcessor(FileSystems.getDefault()));
     optionsParser.parseAndExitUponError(args);
 
     buildMergedDexFiles(optionsParser.getOptions(Options.class));
diff --git a/src/tools/android/java/com/google/devtools/build/android/dexer/DexFileSplitter.java b/src/tools/android/java/com/google/devtools/build/android/dexer/DexFileSplitter.java
index a7eb651..0ab70b4 100644
--- a/src/tools/android/java/com/google/devtools/build/android/dexer/DexFileSplitter.java
+++ b/src/tools/android/java/com/google/devtools/build/android/dexer/DexFileSplitter.java
@@ -33,10 +33,12 @@
 import com.google.devtools.common.options.OptionEffectTag;
 import com.google.devtools.common.options.OptionsBase;
 import com.google.devtools.common.options.OptionsParser;
+import com.google.devtools.common.options.ShellQuotedParamsFilePreProcessor;
 import java.io.BufferedOutputStream;
 import java.io.Closeable;
 import java.io.IOException;
 import java.io.InputStream;
+import java.nio.file.FileSystems;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.StandardOpenOption;
@@ -122,6 +124,8 @@
     OptionsParser optionsParser =
         OptionsParser.newOptionsParser(Options.class);
     optionsParser.setAllowResidue(false);
+    optionsParser.enableParamsFileSupport(
+        new ShellQuotedParamsFilePreProcessor(FileSystems.getDefault()));
     optionsParser.parseAndExitUponError(args);
 
     splitIntoShards(optionsParser.getOptions(Options.class));