Configuration.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 #include "Configuration.h"
  19 #include "Logger.h"
  20
  21 #include <QDebug>
  22
  23 #ifndef Q_OS_WIN
  24 #include <unistd.h>
  25 #endif
  26
  27 Configuration::Configuration(const QString &section)
  28     : m_repoDir("."),
  29     m_section(section),
  30     m_dirty(true),
  31     m_emptyRepo(false)
  32 {
  33 }
  34
  35 bool Configuration::contains(const QString & key) const
  36 {
  37     const_cast<Configuration*> (this)->readConfig();
  38     return m_options.contains(key);
  39 }
  40
  41 QDir Configuration::repository() const
  42 {
  43     const_cast<Configuration*> (this)->readConfig();
  44     return m_repoDir;
  45 }
  46
  47 void Configuration::readConfig()
  48 {
  49     if (!m_dirty)
  50         return;
  51     m_dirty = false;
  52     QObject deleterParent;
  53
  54     QDir dir = QDir::current();
  55     do {
  56         QDir git = dir;
  57         if (git.cd(".git")) {
  58             m_repoDir = dir;
  59             QDir refs(git.absoluteFilePath("refs/heads"));
  60             m_emptyRepo = refs.count() == 2; // only '.' and '..'
  61             break;
  62         }
  63         if (!dir.cdUp())
  64             break;
  65     } while(!dir.isRoot());
  66
  67     QString home = QDir::homePath();
  68     QFile *config;
  69     config = new QFile(home + "/.vng/config", &deleterParent);
  70     if (! config->exists())
  71         config = new QFile(home + "/.darcs/defaults", &deleterParent);
  72     if (config->exists()) {
  73         if (! config->open(QIODevice::ReadOnly)) {
  74             Logger::error() << "Failed to open config file, is it readable?\n";
  75             return;
  76         }
  77
  78         char buf[1024];
  79         while(true) {
  80             qint64 lineLength = config->readLine(buf, sizeof(buf));
  81             if (lineLength == -1)
  82                 break;
  83             QString line = QString::fromUtf8(buf, lineLength);
  84             QString option;
  85             if (line.startsWith("ALL "))
  86                 option = line.mid(3).trimmed();
  87             else if (line.length() > m_section.length() && line.startsWith(m_section))
  88                 option = line.mid(m_section.length()).trimmed();
  89             if (! option.isEmpty()) {
  90                 const int index = option.indexOf(' ');
  91                 if (index > 0) {
  92                     m_options.insert(option.left(index).trimmed(), option.mid(index).trimmed());
  93                 }
  94                 else
  95                     m_options.insert(option, QString());
  96             }
  97         }
  98         config->close();
  99     }
 100 }
 101
 102 QString Configuration::optionArgument(const QString &optionName, const QString &defaultValue) const
 103 {
 104     if (m_options.contains(optionName))
 105         return m_options[optionName];
 106     return defaultValue;
 107 }
 108
 109 bool Configuration::colorTerm() const
 110 {
 111 #ifndef Q_OS_WIN
 112     if (isatty(1))
 113         return QString(getenv("TERM")) != QString("dumb") && !Logger::hasNonColorPager();
 114 #endif
 115     return false;
 116 }
 117
 118 bool Configuration::isEmptyRepo() const
 119 {
 120     const_cast<Configuration*> (this)->readConfig();
 121     return m_emptyRepo;
 122 }