Move.cpp

   1 /*
   2  * This file is part of the vng project
   3  * Copyright (C) 2008 Thomas Zander <tzander@trolltech.com>
   4  * Copyright (C) 2002-2004 David Roundy
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "Move.h"
  21 #include "CommandLineParser.h"
  22 #include "Logger.h"
  23 #include "GitRunner.h"
  24 #include "hunks/File.h"
  25
  26 #include <QPair>
  27
  28 Move::Move()
  29     : AbstractCommand("mv")
  30 {
  31     CommandLineParser::setArgumentDefinition("mv [FILE or DIRECTORY]" );
  32 }
  33
  34 AbstractCommand::ReturnCodes Move::run()
  35 {
  36     if (! checkInRepository())
  37         return NotInRepo;
  38     moveToRoot();
  39     // Move in git is really remove and add. Git will auto detect that being a move.
  40
  41     typedef QPair<QString, QString> RenamePair;
  42
  43     QList<RenamePair> renamePairs;
  44     QStringList files = rebasedArguments();
  45     if (files.count() < 2) { // not sure what that would mean...
  46         Logger::error() << "Vng failed: you must specify at least two arguments for mv\n";
  47         return InvalidOptions;
  48     }
  49     QString target = files.takeLast();
  50     QFileInfo path(target);
  51     if (files.count() > 1) { // multiple files into a dir.
  52         if (! path.isDir()) {
  53             Logger::error() << "Vng failed:  The target directory '" << target <<
  54                 "` does not seem to be an existing directory\n";
  55             return InvalidOptions;
  56         }
  57     }
  58     else { // target is a file
  59         if(File::fileKnownToGit(path)) {
  60             Logger::error() << "Vng failed: The file named '"<<  target <<
  61                 "` already exists in working directory.\n";
  62             return InvalidOptions;
  63         }
  64     }
  65     foreach (QString arg, files) {
  66         if (canMoveFile(arg)) {
  67             if (files.count() > 1)
  68                 renamePairs.append(qMakePair(arg, target + QDir::separator() + arg));
  69             else
  70                 renamePairs.append(qMakePair(arg, target));
  71         }
  72     }
  73
  74     if (dryRun())
  75         return Ok;
  76
  77     QProcess git;
  78     QStringList arguments;
  79     arguments << "update-index" << "--add" << "--remove";
  80     foreach(RenamePair p, renamePairs) {
  81         Logger::debug() << "rename " << p.first << " => " << p.second << endl;
  82         if (QFile::rename(p.first, p.second))
  83             arguments << p.first << p.second;
  84         else
  85             Logger::error() << "Vng failed: Could not rename '" << p.first << "` to '" <<
  86                     p.second << "`, check permissions\n";
  87     }
  88
  89     if (arguments.count() == 3) { // no files!
  90         Logger::info() << "Nothing done\n";
  91         return Ok;
  92     }
  93     GitRunner runner(git, arguments);
  94     return runner.start(GitRunner::WaitUntilFinished);
  95 }
  96
  97 bool Move::canMoveFile(const QString &file)
  98 {
  99     QFileInfo path(file);
 100     if (path.exists()) {
 101         if (path.isFile()) {
 102             bool knownToGit = File::fileKnownToGit(path);
 103             if (! knownToGit) {
 104                 Logger::info() << "Not moving file, its not added in the repository: `" << path.filePath() << "'\n";
 105                 return false;
 106             }
 107             return true;
 108         }
 109         else if (path.isSymLink())
 110             Logger::info() << "Ignoring symbolic link '" << path.filePath() << "'" << endl;
 111         else
 112             Logger::info() << "Ignoring non-file object '" << path.filePath() << "'" << endl;
 113     }
 114     else
 115         Logger::error() << "Can not move non existing' " << path.filePath() << "'" << endl;
 116     return false;
 117 }
 118
 119 QString Move::argumentDescription() const
 120 {
 121     return "<FILE or DIRECTORY>";
 122 }
 123
 124 QString Move::commandDescription() const
 125 {
 126     return "Vng mv can be called whenever you want to move files or\n"
 127         "directories. Unlike remove, mv actually performs the move itself in your\n"
 128         "working copy.\n";
 129 }
 130