UpToDateChecker.java revision cfead78069f3dc32998dc118ee08cab3867acea2
1b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/* 2b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ProGuard -- shrinking, optimization, obfuscation, and preverification 3b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * of Java bytecode. 4b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 5cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang * Copyright (c) 2002-2011 Eric Lafortune (eric@graphics.cornell.edu) 6b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 7b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is free software; you can redistribute it and/or modify it 8b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * under the terms of the GNU General Public License as published by the Free 9b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Software Foundation; either version 2 of the License, or (at your option) 10b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * any later version. 11b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 12b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is distributed in the hope that it will be useful, but WITHOUT 13b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * more details. 16b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 17b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * You should have received a copy of the GNU General Public License along 18b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * with this program; if not, write to the Free Software Foundation, Inc., 19b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 21b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopackage proguard; 22b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 23b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport java.io.File; 24b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 25b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/** 26b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This class checks whether the output is up to date. 27b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 28b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @author Eric Lafortune 29b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 30b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopublic class UpToDateChecker 31b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato{ 32b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final Configuration configuration; 33b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 34b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 35b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 36b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Creates a new UpToDateChecker with the given configuration. 37b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 38b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public UpToDateChecker(Configuration configuration) 39b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 40b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.configuration = configuration; 41b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 42b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 43b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 44b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 45b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Returns whether the output is up to date, based on the modification times 46b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * of the input jars, output jars, and library jars (or directories). 47b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 48b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public boolean check() 49b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 50cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang try 51cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang { 52cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang ModificationTimeChecker checker = new ModificationTimeChecker(); 53b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 54cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang checker.updateInputModificationTime(configuration.lastModified); 55b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 56cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang ClassPath programJars = configuration.programJars; 57cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang ClassPath libraryJars = configuration.libraryJars; 58cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 59cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang // Check the dates of the program jars, if any. 60cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang if (programJars != null) 61b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 62cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang for (int index = 0; index < programJars.size(); index++) 63b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 64cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang // Update the input and output modification times. 65cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang ClassPathEntry classPathEntry = programJars.get(index); 66b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 67cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang checker.updateModificationTime(classPathEntry.getFile(), 68cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang classPathEntry.isOutput()); 69b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 70b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 71b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 72cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang // Check the dates of the library jars, if any. 73cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang if (libraryJars != null) 74b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 75cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang for (int index = 0; index < libraryJars.size(); index++) 76b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 77cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang // Update the input modification time. 78cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang ClassPathEntry classPathEntry = libraryJars.get(index); 79b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 80cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang checker.updateModificationTime(classPathEntry.getFile(), 81cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang false); 82b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 83b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 84b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 85cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang // Check the dates of the auxiliary input files. 86cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang checker.updateInputModificationTime(configuration.applyMapping); 87cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang checker.updateInputModificationTime(configuration.obfuscationDictionary); 88cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang checker.updateInputModificationTime(configuration.classObfuscationDictionary); 89cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang checker.updateInputModificationTime(configuration.packageObfuscationDictionary); 90cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 91cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang // Check the dates of the auxiliary output files. 92cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang checker.updateOutputModificationTime(configuration.printSeeds); 93cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang checker.updateOutputModificationTime(configuration.printUsage); 94cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang checker.updateOutputModificationTime(configuration.printMapping); 95cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang checker.updateOutputModificationTime(configuration.printConfiguration); 96cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang checker.updateOutputModificationTime(configuration.dump); 97cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang } 98cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang catch (IllegalStateException e) 99b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 100cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang // The output is outdated. 101cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang return false; 102b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 103b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 104cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang System.out.println("The output seems up to date"); 105cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 106cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang return true; 107b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 108b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 109b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 110b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 111cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang * This class maintains the modification times of input and output. 112cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang * The methods throw an IllegalStateException if the output appears 113cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang * outdated. 114b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 115cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang private static class ModificationTimeChecker { 116cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 117cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang private long inputModificationTime = Long.MIN_VALUE; 118cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang private long outputModificationTime = Long.MAX_VALUE; 119cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 120cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 121cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang /** 122cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang * Updates the input modification time based on the given file or 123cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang * directory (recursively). 124cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang */ 125cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang public void updateInputModificationTime(File file) 126b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 127cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang if (file != null) 128cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang { 129cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang updateModificationTime(file, false); 130cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang } 131cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang } 132b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 133b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 134cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang /** 135cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang * Updates the input modification time based on the given file or 136cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang * directory (recursively). 137cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang */ 138cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang public void updateOutputModificationTime(File file) 139cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang { 140cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang if (file != null && file.getName().length() > 0) 141b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 142cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang updateModificationTime(file, true); 143cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang } 144cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang } 145cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 146cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 147cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang /** 148cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang * Updates the specified modification time based on the given file or 149cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang * directory (recursively). 150cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang */ 151cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang public void updateModificationTime(File file, boolean isOutput) 152cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang { 153cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang // Is it a directory? 154cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang if (file.isDirectory()) 155cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang { 156cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang // Ignore the directory's modification time; just recurse on 157cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang // its files. 158cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang File[] files = file.listFiles(); 159cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 160cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang // Still, an empty output directory is probably a sign that it 161cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang // is not up to date. 162cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang if (files.length == 0 && isOutput) 163b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 164cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang updateOutputModificationTime(Long.MIN_VALUE); 165b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 166cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 167cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang for (int index = 0; index < files.length; index++) 168cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang { 169cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang updateModificationTime(files[index], isOutput); 170cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang } 171cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang } 172cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang else 173cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang { 174cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang // Update with the file's modification time. 175cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang updateModificationTime(file.lastModified(), isOutput); 176b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 177cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang } 178cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 179b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 180cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang /** 181cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang * Updates the specified modification time. 182cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang */ 183cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang public void updateModificationTime(long time, boolean isOutput) 184cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang { 185cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang if (isOutput) 186cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang { 187cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang updateOutputModificationTime(time); 188cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang } 189cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang else 190cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang { 191cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang updateInputModificationTime(time); 192cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang } 193b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 194cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 195cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 196cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang /** 197cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang * Updates the input modification time. 198cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang */ 199cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang public void updateInputModificationTime(long time) 200b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 201cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang if (inputModificationTime < time) 202cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang { 203cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang inputModificationTime = time; 204cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 205cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang checkModificationTimes(); 206cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang } 207cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang } 208cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 209cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 210cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang /** 211cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang * Updates the output modification time. 212cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang */ 213cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang public void updateOutputModificationTime(long time) 214cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang { 215cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang if (outputModificationTime > time) 216cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang { 217cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang outputModificationTime = time; 218cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 219cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang checkModificationTimes(); 220cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang } 221cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang } 222cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 223cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang 224cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang private void checkModificationTimes() 225cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang { 226cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang if (inputModificationTime > outputModificationTime) 227cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang { 228cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang throw new IllegalStateException("The output is outdated"); 229cfead78069f3dc32998dc118ee08cab3867acea2Ying Wang } 230b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 231b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 232b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato} 233