WhatsNew.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 #include "WhatsNew.h"
  20 #include "hunks/ChangeSet.h"
  21 #include "Logger.h"
  22 #include "GitRunner.h"
  23 #include "CommandLineParser.h"
  24
  25 #include <QTextStream>
  26 #include <QProcess>
  27
  28 static const CommandLineOption options[] = {
  29     {"-s, --summary", "summarize changes"},
  30     {"--no-summary", "don't summarize changes"},
  31     {"-u, --unified", "output patch in a format similar to diff -u"},
  32     {"-l, --look-for-adds", "In addition to modifications, look for files that are not boring, and thus are potentially pending addition"},
  33     {"--dont-look-for-adds", "Don't look for any files or directories that could be added, and don't add them automatically"},
  34     //{"--boring", "don't skip boring files"},
  35     CommandLineLastOption
  36 };
  37
  38 WhatsNew::WhatsNew()
  39     : AbstractCommand("whatsnew")
  40 {
  41     CommandLineParser::addOptionDefinitions(options);
  42     CommandLineParser::setArgumentDefinition("whatsnew [FILE or DIRECTORY]" );
  43 }
  44
  45 AbstractCommand::ReturnCodes WhatsNew::run()
  46 {
  47     if (! checkInRepository())
  48         return NotInRepo;
  49     moveToRoot();
  50
  51     CommandLineParser *args = CommandLineParser::instance();
  52     const bool lookForAdds = m_config.contains("look-for-adds") && !args->contains("dont-look-for-adds-summary")
  53         || args->contains("look-for-adds");
  54     const bool printSummary = lookForAdds || m_config.contains("summary") &&
  55         !args->contains("no-summary") || args->contains("summary");
  56     const bool unified = m_config.contains("unified") || args->contains("unified");
  57
  58     if (shouldUsePager())
  59         Logger::startPager();
  60     ChangeSet changeSet;
  61     changeSet.fillFromCurrentChanges(rebasedArguments());
  62
  63     QTextStream &out = Logger::standardOut();
  64     if (lookForAdds) {
  65         QProcess git;
  66         QStringList arguments;
  67         arguments << "ls-files" << "-o" << "--directory" << "--no-empty-directory" << "--exclude-standard";
  68
  69         GitRunner runner(git, arguments);
  70         ReturnCodes rc = runner.start(GitRunner::WaitForStandardOutput);
  71         if (rc != Ok)
  72             return rc;
  73
  74         char buf[1024];
  75         while(true) {
  76             qint64 lineLength = Vng::readLine(&git, buf, sizeof(buf));
  77             if (lineLength == -1)
  78                 break;
  79             QString line = QString::fromUtf8(buf, lineLength);
  80             out << "a " << line;
  81         }
  82     }
  83     else if (changeSet.count() == 0) {
  84         out << "No Changes!" << endl;
  85         return Ok;
  86     }
  87     if (!printSummary && !unified) {
  88         m_config.colorize(out);
  89         out << "{\n";
  90     }
  91     foreach(File file, changeSet.files()) {
  92         file.outputWhatsChanged(out, m_config, printSummary, unified);
  93         Logger::flushPager();
  94     }
  95     if (!printSummary && !unified) {
  96         m_config.colorize(out);
  97         out << "}\n";
  98         m_config.normalColor(out);
  99     }
 100
 101     return AbstractCommand::Ok;
 102 }
 103
 104 QString WhatsNew::argumentDescription() const
 105 {
 106     return QString("[FILE or DIRECTORY]");
 107 }
 108
 109 QString WhatsNew::commandDescription() const
 110 {
 111     return "whatsnew gives you a view of what changes you've made in your working\n"
 112         "copy that haven't yet been recorded.  The changes are displayed in\n"
 113         "vng patch format.\n";
 114 }