ExcludeMatcher.cpp

   1 /*
   2  * This file is part of the vng project
   3  * Copyright (C) 2008 Thomas Zander <tzander@trolltech.com>
   4  *
   5  * This program is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include "ExcludeMatcher.h"
  20 #include "GitRunner.h"
  21 #include "Logger.h"
  22
  23 #include <QDebug>
  24
  25 ExcludeMatcher::ExcludeMatcher()
  26 {
  27 }
  28
  29 bool ExcludeMatcher::isExcluded(const QString &entry)
  30 {
  31     // TODO
  32     // current dir should have a .git dir. [assert]
  33     // entry is a relative path from our current dir. [assert]
  34     if (m_baseMatches.isEmpty()) {
  35         // TODO
  36         // call git config --get core.excludesfile
  37         // $GIT_DIR/info/exclude
  38     }
  39
  40     // split entry into separate dirs.
  41     QStringList pathSegments = entry.split(QDir::separator(), QString::SkipEmptyParts);
  42     QString fileName = "/"+ pathSegments.takeLast(); // remove last entry (the actual filename);
  43
  44     if (isExcluded(m_baseMatches, entry, fileName))
  45         return true;
  46
  47
  48     pathSegments.insert(0, ".");
  49     QString path;
  50     foreach(QString segment, pathSegments) {
  51         path = path + segment + QDir::separator();
  52         if (! m_cachedMatches.contains(path)) {
  53             QList<IgnoreLine> items;
  54             QFile ignoreFile(path +".gitignore");
  55             if (ignoreFile.exists()) {
  56                 if (ignoreFile.open(QFile::ReadOnly)) {
  57                     QTextStream file(&ignoreFile);
  58                     int line=0;
  59                     while(true) {
  60                         ++line;
  61                         QString line = file.readLine();
  62                         if (line.isNull())
  63                             break;
  64                         if (line.isEmpty() || line[0] == '#')
  65                             continue;
  66                         IgnoreLine ignoreLine;
  67                         ignoreLine.inverted = line[0] == '!';
  68                         if (ignoreLine.inverted)
  69                             line = line.mid(1);
  70                         ignoreLine.matchOnFileOnly = line.contains('/');
  71                         QRegExp re(line, Qt::CaseInsensitive, QRegExp::Wildcard);
  72                         ignoreLine.regExp = re;
  73                         if (re.isValid())
  74                             items << ignoreLine;
  75                         else
  76                             Logger::debug() << "invalid entry in " << ignoreFile.fileName() << " line " << line;
  77                     }
  78                     ignoreFile.close();
  79                 }
  80             }
  81             m_cachedMatches.insert(path, items);
  82         }
  83         if (isExcluded(m_cachedMatches[path], entry, fileName))
  84             return true;
  85     }
  86     return false;
  87 }
  88
  89
  90 bool ExcludeMatcher::isExcluded(const QList<IgnoreLine> &ignores, const QString &path, const QString &fileName)
  91 {
  92     foreach (IgnoreLine il, ignores) {
  93         bool matches;
  94         // qDebug() << "trying on " << il.regExp.pattern() << il.matchOnFileOnly << il.inverted;
  95         if (il.matchOnFileOnly)
  96             matches = il.regExp.exactMatch(fileName);
  97         else
  98             matches = il.regExp.exactMatch(path);
  99         if (matches != il.inverted)
 100             return true;
 101     }
 102     return false;
 103 }