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| 1 | +/*BEGIN_COPYRIGHT_BLOCK |
| 2 | + * |
| 3 | + * Copyright (c) 2001-2008, JavaPLT group at Rice University (drjava@rice.edu) |
| 4 | + * All rights reserved. |
| 5 | + * |
| 6 | + * Redistribution and use in source and binary forms, with or without |
| 7 | + * modification, are permitted provided that the following conditions are met: |
| 8 | + * * Redistributions of source code must retain the above copyright |
| 9 | + * notice, this list of conditions and the following disclaimer. |
| 10 | + * * Redistributions in binary form must reproduce the above copyright |
| 11 | + * notice, this list of conditions and the following disclaimer in the |
| 12 | + * documentation and/or other materials provided with the distribution. |
| 13 | + * * Neither the names of DrJava, the JavaPLT group, Rice University, nor the |
| 14 | + * names of its contributors may be used to endorse or promote products |
| 15 | + * derived from this software without specific prior written permission. |
| 16 | + * |
| 17 | + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 18 | + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 19 | + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 20 | + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| 21 | + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 22 | + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 23 | + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 24 | + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 25 | + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 26 | + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 27 | + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 28 | + * |
| 29 | + * This software is Open Source Initiative approved Open Source Software. |
| 30 | + * Open Source Initative Approved is a trademark of the Open Source Initiative. |
| 31 | + * |
| 32 | + * This file is part of DrJava. Download the current version of this project |
| 33 | + * from http://www.drjava.org/ or http://sourceforge.net/projects/drjava/ |
| 34 | + * |
| 35 | + * END_COPYRIGHT_BLOCK*/ |
| 36 | + |
| 37 | +package edu.rice.cs.drjava; |
| 38 | + |
| 39 | +import edu.rice.cs.plt.concurrent.JVMBuilder; |
| 40 | +import edu.rice.cs.util.FileOps; |
| 41 | + |
| 42 | +import java.io.*; |
| 43 | +import javax.swing.JOptionPane; |
| 44 | + |
| 45 | +/** Helper class for DrJava that copies a file and then starts it. Part of the automatic update |
| 46 | + * in NewVersionPopup. |
| 47 | + * @version $Id$ |
| 48 | + */ |
| 49 | +public class DrJavaRestart { |
| 50 | + /** |
| 51 | + * Number of attempts to delete or rename files. This is necessary since an OS, |
| 52 | + * particularly Windows, may still have a write lock on a file. |
| 53 | + * Currently, we pause up to 5*1000 ms per operation. */ |
| 54 | + public static final int ATTEMPTS = 5; |
| 55 | + public static final int TIME_BETWEEN_ATTEMPTS = 1000; |
| 56 | + |
| 57 | + public static edu.rice.cs.util.Log LOG = new edu.rice.cs.util.Log("version.txt",false); |
| 58 | + public static void message(String message) { |
| 59 | + LOG.log(message); |
| 60 | + JOptionPane.showMessageDialog(null, message, |
| 61 | + "Error Updating DrJava", JOptionPane.ERROR_MESSAGE); |
| 62 | + |
| 63 | + } |
| 64 | + public static boolean delete(File f) { |
| 65 | + for(int i=0; i<ATTEMPTS; ++i) { |
| 66 | + if (f.delete()) return true; |
| 67 | + LOG.log("Failed to delete "+f+", trying again"); |
| 68 | + try { |
| 69 | + Thread.sleep(TIME_BETWEEN_ATTEMPTS); |
| 70 | + } |
| 71 | + catch(InterruptedException ie) { /* just wait */ } |
| 72 | + } |
| 73 | + return false; |
| 74 | + } |
| 75 | + public static boolean deleteRecursively(File f) { |
| 76 | + for(int i=0; i<ATTEMPTS; ++i) { |
| 77 | + if (edu.rice.cs.plt.io.IOUtil.deleteRecursively(f)) return true; |
| 78 | + LOG.log("Failed to recursively delete "+f+", trying again"); |
| 79 | + try { |
| 80 | + Thread.sleep(TIME_BETWEEN_ATTEMPTS); |
| 81 | + } |
| 82 | + catch(InterruptedException ie) { /* just wait */ } |
| 83 | + } |
| 84 | + return false; |
| 85 | + } |
| 86 | + public static boolean rename(File from, File to) { |
| 87 | + for(int i=0; i<ATTEMPTS; ++i) { |
| 88 | + if (from.renameTo(to)) return true; |
| 89 | + LOG.log("Failed to rename "+from+" to "+to+", trying again"); |
| 90 | + try { |
| 91 | + Thread.sleep(TIME_BETWEEN_ATTEMPTS); |
| 92 | + } |
| 93 | + catch(InterruptedException ie) { /* just wait */ } |
| 94 | + } |
| 95 | + return false; |
| 96 | + } |
| 97 | + public static void main(final String[] args) { |
| 98 | + // args[0] source file |
| 99 | + // args[1] destination file (will be started) |
| 100 | + // args[2] restart file (should be deleted after the restart) |
| 101 | + File source = new File(args[0]); |
| 102 | + File dest = new File(args[1]); |
| 103 | + File exec = dest; |
| 104 | + |
| 105 | + try { |
| 106 | + LOG.log("source: "+source.getAbsolutePath()); |
| 107 | + LOG.log("dest : "+dest.getAbsolutePath()); |
| 108 | + |
| 109 | + if (dest.exists()) { |
| 110 | + if (dest.isFile()) { |
| 111 | + // is a file, try to delete it |
| 112 | + if (delete(dest)) { |
| 113 | + // could delete it, rename source to dest |
| 114 | + if (!rename(source,dest)) { |
| 115 | + // could not rename, keep source as name |
| 116 | + exec = source; |
| 117 | + message("A new version of DrJava was downloaded. However, it could not be\n"+ |
| 118 | + "installed in the same place as the old DrJava.\n\n"+ |
| 119 | + "The new copy is now installed at:\n"+ |
| 120 | + source.getAbsolutePath()+"\n\n"+ |
| 121 | + "The old copy has been deleted."); |
| 122 | + } |
| 123 | + } |
| 124 | + else { |
| 125 | + // could not delete it, keep source as name |
| 126 | + exec = source; |
| 127 | + message("A new version of DrJava was downloaded. However, it could not be\n"+ |
| 128 | + "installed in the same place as the old DrJava.\n\n"+ |
| 129 | + "The new copy is now installed at:\n"+ |
| 130 | + source.getAbsolutePath()+"\n\n"+ |
| 131 | + "The old copy is still installed at:\n"+ |
| 132 | + dest.getAbsolutePath()); |
| 133 | + } |
| 134 | + LOG.log("Restarting..."); |
| 135 | + Process p = JVMBuilder.DEFAULT.classPath(exec).start(DrJava.class.getName(), "-new", "-delete-after-restart", args[2]); |
| 136 | + LOG.log("Done with DrJavaRestart"); |
| 137 | + System.exit(0); |
| 138 | + } |
| 139 | + else { |
| 140 | + // is a directory, try to rename |
| 141 | + // this should only happen with Mac DrJava.app |
| 142 | + File old = FileOps.generateNewFileName(dest); |
| 143 | + if (rename(dest,old)) { |
| 144 | + if (rename(source,dest)) { |
| 145 | + // could rename, now delete the directory containing the former source |
| 146 | + delete(source.getParentFile()); |
| 147 | + if (!deleteRecursively(old)) { |
| 148 | + message("A new version of DrJava was downloaded. However, the old version"+ |
| 149 | + "could not be deleted.\n\n"+ |
| 150 | + "The new copy is now installed at:\n"+ |
| 151 | + dest.getAbsolutePath()+"\n\n"+ |
| 152 | + "The old copy is still installed at:\n"+ |
| 153 | + old.getAbsolutePath()); |
| 154 | + } |
| 155 | + } |
| 156 | + else { |
| 157 | + // could not rename, keep source as name |
| 158 | + exec = source; |
| 159 | + // try to rename dest back |
| 160 | + if (rename(old,dest)) { |
| 161 | + // was at least able to rename back |
| 162 | + message("A new version of DrJava was downloaded. However, it could not be\n"+ |
| 163 | + "installed in the same place as the old DrJava.\n\n"+ |
| 164 | + "The new copy is now installed at:\n"+ |
| 165 | + source.getAbsolutePath()+"\n\n"+ |
| 166 | + "The old copy is still installed at:\n"+ |
| 167 | + dest.getAbsolutePath()); |
| 168 | + } |
| 169 | + else { |
| 170 | + // couldn't even rename back |
| 171 | + message("A new version of DrJava was downloaded. However, it could not be\n"+ |
| 172 | + "installed in the same place as the old DrJava.\n\n"+ |
| 173 | + "The new copy is now installed at:\n"+ |
| 174 | + source.getAbsolutePath()+"\n\n"+ |
| 175 | + "The old copy is still installed at:\n"+ |
| 176 | + old.getAbsolutePath()); |
| 177 | + } |
| 178 | + } |
| 179 | + } |
| 180 | + else { |
| 181 | + // could not rename keep source as name |
| 182 | + exec = source; |
| 183 | + message("A new version of DrJava was downloaded. However, it could not be\n"+ |
| 184 | + "installed in the same place as the old DrJava.\n\n"+ |
| 185 | + "The new copy is now installed at:\n"+ |
| 186 | + source.getAbsolutePath()+"\n\n"+ |
| 187 | + "The old copy is still installed at:\n"+ |
| 188 | + dest.getAbsolutePath()); |
| 189 | + } |
| 190 | + |
| 191 | + // check if Mac's open command exists |
| 192 | + File macOpenFile = new File("/usr/bin/open"); |
| 193 | + LOG.log("Searching for "+macOpenFile); |
| 194 | + if (!macOpenFile.exists()) { |
| 195 | + String path = System.getenv("PATH"); |
| 196 | + for(String p: path.split(System.getProperty("path.separator"))) { |
| 197 | + macOpenFile = new File(p, "tar"); |
| 198 | + LOG.log("Searching for "+macOpenFile); |
| 199 | + if (macOpenFile.exists()) break; |
| 200 | + } |
| 201 | + } |
| 202 | + if (macOpenFile.exists()) { |
| 203 | + LOG.log("Restarting using ProcessBuilder..."); |
| 204 | + Process p = new ProcessBuilder() |
| 205 | + .command(macOpenFile.getAbsolutePath(), exec.getAbsolutePath()) |
| 206 | + .redirectErrorStream(true) |
| 207 | + .start(); |
| 208 | + System.exit(0); |
| 209 | + } |
| 210 | + else { |
| 211 | + LOG.log("Restarting using JVMBuilder..."); |
| 212 | + exec = new File(exec,"Contents/Resources/Java/drjava.jar"); |
| 213 | + Process p = JVMBuilder.DEFAULT.classPath(exec).start(DrJava.class.getName(), "-new", "-delete-after-restart", args[2]); |
| 214 | + LOG.log("Done with DrJavaRestart"); |
| 215 | + System.exit(0); |
| 216 | + } |
| 217 | + } |
| 218 | + } |
| 219 | + } |
| 220 | + catch(Exception e) { |
| 221 | + message("A new version of DrJava was downloaded. However, there was an error"+ |
| 222 | + "during installation:\n"+e.getMessage()); |
| 223 | + } |
| 224 | + } |
| 225 | +} |
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