1 // Copyright (c) 2016, the R8 project authors. Please see the AUTHORS file 2 // for details. All rights reserved. Use of this source code is governed by a 3 // BSD-style license that can be found in the LICENSE file. 4 package com.android.tools.r8; 5 6 import com.android.tools.r8.graph.DexItemFactory; 7 import com.android.tools.r8.shaking.ProguardConfigurationParser; 8 import com.android.tools.r8.shaking.ProguardRuleParserException; 9 import com.android.tools.r8.utils.Timing; 10 import java.io.IOException; 11 import java.nio.file.Paths; 12 13 /** 14 * Benchmark for testing ability to and speed of parsing Proguard keep files. 15 */ 16 public class ReadKeepFile { 17 18 private static final String DEFAULT_KEEP_FILE_NAME = "build/proguard.cfg"; 19 20 final Timing timing = new Timing("ReadKeepFile"); 21 22 private void readProguardKeepFile(String fileName) throws ProguardRuleParserException { 23 try { 24 System.out.println(" - reading " + fileName); 25 timing.begin("Reading " + fileName); 26 new ProguardConfigurationParser(new DexItemFactory()).parse(Paths.get(fileName)); 27 timing.end(); 28 } catch (IOException e) { 29 System.err.print("Failed to parse Proguard keep file: " + e.getMessage()); 30 } 31 } 32 33 public static void main(String[] args) throws ProguardRuleParserException { 34 new ReadKeepFile().run(args); 35 } 36 37 private void run(String[] args) throws ProguardRuleParserException { 38 System.out.println("ProguardKeepRuleParser benchmark."); 39 if (args.length == 0) { 40 readProguardKeepFile(DEFAULT_KEEP_FILE_NAME); 41 } else { 42 for (String name : args) { 43 readProguardKeepFile(name); 44 } 45 } 46 timing.report(); 47 } 48 } 49
