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Diffstat (limited to 'src/proguard/UpToDateChecker.java')
| -rw-r--r-- | src/proguard/UpToDateChecker.java | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/src/proguard/UpToDateChecker.java b/src/proguard/UpToDateChecker.java deleted file mode 100644 index f0b2b81..0000000 --- a/src/proguard/UpToDateChecker.java +++ /dev/null @@ -1,232 +0,0 @@ -/* - * ProGuard -- shrinking, optimization, obfuscation, and preverification - * of Java bytecode. - * - * Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu) - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -package proguard; - -import java.io.File; - -/** - * This class checks whether the output is up to date. - * - * @author Eric Lafortune - */ -public class UpToDateChecker -{ - private final Configuration configuration; - - - /** - * Creates a new UpToDateChecker with the given configuration. - */ - public UpToDateChecker(Configuration configuration) - { - this.configuration = configuration; - } - - - /** - * Returns whether the output is up to date, based on the modification times - * of the input jars, output jars, and library jars (or directories). - */ - public boolean check() - { - try - { - ModificationTimeChecker checker = new ModificationTimeChecker(); - - checker.updateInputModificationTime(configuration.lastModified); - - ClassPath programJars = configuration.programJars; - ClassPath libraryJars = configuration.libraryJars; - - // Check the dates of the program jars, if any. - if (programJars != null) - { - for (int index = 0; index < programJars.size(); index++) - { - // Update the input and output modification times. - ClassPathEntry classPathEntry = programJars.get(index); - - checker.updateModificationTime(classPathEntry.getFile(), - classPathEntry.isOutput()); - } - } - - // Check the dates of the library jars, if any. - if (libraryJars != null) - { - for (int index = 0; index < libraryJars.size(); index++) - { - // Update the input modification time. - ClassPathEntry classPathEntry = libraryJars.get(index); - - checker.updateModificationTime(classPathEntry.getFile(), - false); - } - } - - // Check the dates of the auxiliary input files. - checker.updateInputModificationTime(configuration.applyMapping); - checker.updateInputModificationTime(configuration.obfuscationDictionary); - checker.updateInputModificationTime(configuration.classObfuscationDictionary); - checker.updateInputModificationTime(configuration.packageObfuscationDictionary); - - // Check the dates of the auxiliary output files. - checker.updateOutputModificationTime(configuration.printSeeds); - checker.updateOutputModificationTime(configuration.printUsage); - checker.updateOutputModificationTime(configuration.printMapping); - checker.updateOutputModificationTime(configuration.printConfiguration); - checker.updateOutputModificationTime(configuration.dump); - } - catch (IllegalStateException e) - { - // The output is outdated. - return false; - } - - System.out.println("The output seems up to date"); - - return true; - } - - - /** - * This class maintains the modification times of input and output. - * The methods throw an IllegalStateException if the output appears - * outdated. - */ - private static class ModificationTimeChecker { - - private long inputModificationTime = Long.MIN_VALUE; - private long outputModificationTime = Long.MAX_VALUE; - - - /** - * Updates the input modification time based on the given file or - * directory (recursively). - */ - public void updateInputModificationTime(File file) - { - if (file != null) - { - updateModificationTime(file, false); - } - } - - - /** - * Updates the input modification time based on the given file or - * directory (recursively). - */ - public void updateOutputModificationTime(File file) - { - if (file != null && file.getName().length() > 0) - { - updateModificationTime(file, true); - } - } - - - /** - * Updates the specified modification time based on the given file or - * directory (recursively). - */ - public void updateModificationTime(File file, boolean isOutput) - { - // Is it a directory? - if (file.isDirectory()) - { - // Ignore the directory's modification time; just recurse on - // its files. - File[] files = file.listFiles(); - - // Still, an empty output directory is probably a sign that it - // is not up to date. - if (files.length == 0 && isOutput) - { - updateOutputModificationTime(Long.MIN_VALUE); - } - - for (int index = 0; index < files.length; index++) - { - updateModificationTime(files[index], isOutput); - } - } - else - { - // Update with the file's modification time. - updateModificationTime(file.lastModified(), isOutput); - } - } - - - /** - * Updates the specified modification time. - */ - public void updateModificationTime(long time, boolean isOutput) - { - if (isOutput) - { - updateOutputModificationTime(time); - } - else - { - updateInputModificationTime(time); - } - } - - - /** - * Updates the input modification time. - */ - public void updateInputModificationTime(long time) - { - if (inputModificationTime < time) - { - inputModificationTime = time; - - checkModificationTimes(); - } - } - - - /** - * Updates the output modification time. - */ - public void updateOutputModificationTime(long time) - { - if (outputModificationTime > time) - { - outputModificationTime = time; - - checkModificationTimes(); - } - } - - - private void checkModificationTimes() - { - if (inputModificationTime > outputModificationTime) - { - throw new IllegalStateException("The output is outdated"); - } - } - } -} |