tools/linguist/lrelease/main.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the Qt Linguist of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include "translator.h"
       
    43 #include "proreader.h"
       
    44 
       
    45 #include <QtCore/QCoreApplication>
       
    46 #include <QtCore/QDebug>
       
    47 #include <QtCore/QDir>
       
    48 #include <QtCore/QFile>
       
    49 #include <QtCore/QFileInfo>
       
    50 #include <QtCore/QRegExp>
       
    51 #include <QtCore/QString>
       
    52 #include <QtCore/QStringList>
       
    53 #include <QtCore/QTextStream>
       
    54 #include <QtCore/QTranslator>
       
    55 
       
    56 static void printOut(const QString & out)
       
    57 {
       
    58     QTextStream stream(stdout);
       
    59     stream << out;
       
    60 }
       
    61 
       
    62 static void printUsage()
       
    63 {
       
    64     printOut(QCoreApplication::tr(
       
    65         "Usage:\n"
       
    66         "    lrelease [options] project-file\n"
       
    67         "    lrelease [options] ts-files [-qm qm-file]\n\n"
       
    68         "lrelease is part of Qt's Linguist tool chain. It can be used as a\n"
       
    69         "stand-alone tool to convert XML-based translations files in the TS\n"
       
    70         "format into the 'compiled' QM format used by QTranslator objects.\n\n"
       
    71         "Options:\n"
       
    72         "    -help  Display this information and exit\n"
       
    73         "    -idbased\n"
       
    74         "           Use IDs instead of source strings for message keying\n"
       
    75         "    -compress\n"
       
    76         "           Compress the QM files\n"
       
    77         "    -nounfinished\n"
       
    78         "           Do not include unfinished translations\n"
       
    79         "    -removeidentical\n"
       
    80         "           If the translated text is the same as\n"
       
    81         "           the source text, do not include the message\n"
       
    82         "    -silent\n"
       
    83         "           Do not explain what is being done\n"
       
    84         "    -version\n"
       
    85         "           Display the version of lrelease and exit\n"
       
    86     ));
       
    87 }
       
    88 
       
    89 static bool loadTsFile(Translator &tor, const QString &tsFileName, bool /* verbose */)
       
    90 {
       
    91     ConversionData cd;
       
    92     bool ok = tor.load(tsFileName, cd, QLatin1String("auto"));
       
    93     if (!ok) {
       
    94         qWarning("lrelease error: %s\n", qPrintable(cd.error()));
       
    95     } else {
       
    96         if (!cd.errors().isEmpty())
       
    97             printOut(cd.error());
       
    98     }
       
    99     return ok;
       
   100 }
       
   101 
       
   102 static bool releaseTranslator(Translator &tor, const QString &qmFileName,
       
   103     bool verbose, bool ignoreUnfinished,
       
   104     bool removeIdentical, bool idBased, TranslatorSaveMode mode)
       
   105 {
       
   106     Translator::reportDuplicates(tor.resolveDuplicates(), qmFileName, verbose);
       
   107 
       
   108     if (verbose)
       
   109         printOut(QCoreApplication::tr( "Updating '%1'...\n").arg(qmFileName));
       
   110     if (removeIdentical) {
       
   111         if ( verbose )
       
   112             printOut(QCoreApplication::tr( "Removing translations equal to source text in '%1'...\n").arg(qmFileName));
       
   113         tor.stripIdenticalSourceTranslations();
       
   114     }
       
   115 
       
   116     QFile file(qmFileName);
       
   117     if (!file.open(QIODevice::WriteOnly)) {
       
   118         qWarning("lrelease error: cannot create '%s': %s\n",
       
   119                  qPrintable(qmFileName), qPrintable(file.errorString()));
       
   120         return false;
       
   121     }
       
   122 
       
   123     ConversionData cd;
       
   124     tor.normalizeTranslations(cd);
       
   125     cd.m_verbose = verbose;
       
   126     cd.m_ignoreUnfinished = ignoreUnfinished;
       
   127     cd.m_idBased = idBased;
       
   128     cd.m_saveMode = mode;
       
   129     bool ok = tor.release(&file, cd);
       
   130     file.close();
       
   131 
       
   132     if (!ok) {
       
   133         qWarning("lrelease error: cannot save '%s': %s\n",
       
   134                  qPrintable(qmFileName), qPrintable(cd.error()));
       
   135         return false;
       
   136     } else if (!cd.errors().isEmpty()) {
       
   137         printOut(cd.error());
       
   138     }
       
   139     return true;
       
   140 }
       
   141 
       
   142 static bool releaseTsFile(const QString& tsFileName, bool verbose,
       
   143     bool ignoreUnfinished, bool removeIdentical, bool idBased, TranslatorSaveMode mode)
       
   144 {
       
   145     Translator tor;
       
   146     if (!loadTsFile(tor, tsFileName, verbose))
       
   147         return false;
       
   148 
       
   149     QString qmFileName = tsFileName;
       
   150     foreach (const Translator::FileFormat &fmt, Translator::registeredFileFormats()) {
       
   151         if (qmFileName.endsWith(QLatin1Char('.') + fmt.extension)) {
       
   152             qmFileName.chop(fmt.extension.length() + 1);
       
   153             break;
       
   154         }
       
   155     }
       
   156     qmFileName += QLatin1String(".qm");
       
   157 
       
   158     return releaseTranslator(tor, qmFileName, verbose, ignoreUnfinished, removeIdentical, idBased, mode);
       
   159 }
       
   160 
       
   161 int main(int argc, char **argv)
       
   162 {
       
   163     QCoreApplication app(argc, argv);
       
   164     QStringList args = app.arguments();
       
   165     QTranslator translator;
       
   166     if (translator.load(QLatin1String("lrelease_") + QLocale::system().name()))
       
   167         app.installTranslator(&translator);
       
   168 
       
   169     bool verbose = true; // the default is true starting with Qt 4.2
       
   170     bool ignoreUnfinished = false;
       
   171     bool idBased = false;
       
   172     // the default mode is SaveEverything starting with Qt 4.2
       
   173     TranslatorSaveMode mode = SaveEverything;
       
   174     bool removeIdentical = false;
       
   175     Translator tor;
       
   176     QString outputFile;
       
   177     int numFiles = 0;
       
   178 
       
   179     for (int i = 1; i < argc; ++i) {
       
   180         if (args[i] == QLatin1String("-compress")) {
       
   181             mode = SaveStripped;
       
   182             continue;
       
   183         } else if (args[i] == QLatin1String("-idbased")) {
       
   184             idBased = true;
       
   185             continue;
       
   186         } else if (args[i] == QLatin1String("-nocompress")) {
       
   187             mode = SaveEverything;
       
   188             continue;
       
   189         } else if (args[i] == QLatin1String("-removeidentical")) {
       
   190             removeIdentical = true;
       
   191             continue;
       
   192         } else if (args[i] == QLatin1String("-nounfinished")) {
       
   193             ignoreUnfinished = true;
       
   194             continue;
       
   195         } else if (args[i] == QLatin1String("-silent")) {
       
   196             verbose = false;
       
   197             continue;
       
   198         } else if (args[i] == QLatin1String("-verbose")) {
       
   199             verbose = true;
       
   200             continue;
       
   201         } else if (args[i] == QLatin1String("-version")) {
       
   202             printOut(QCoreApplication::tr( "lrelease version %1\n").arg(QLatin1String(QT_VERSION_STR)) );
       
   203             return 0;
       
   204         } else if (args[i] == QLatin1String("-qm")) {
       
   205             if (i == argc - 1) {
       
   206                 printUsage();
       
   207                 return 1;
       
   208             }
       
   209             i++;
       
   210             outputFile = args[i];
       
   211         } else if (args[i] == QLatin1String("-help")) {
       
   212             printUsage();
       
   213             return 0;
       
   214         } else if (args[i][0] == QLatin1Char('-')) {
       
   215             printUsage();
       
   216             return 1;
       
   217         } else {
       
   218             numFiles++;
       
   219         }
       
   220     }
       
   221 
       
   222     if (numFiles == 0) {
       
   223         printUsage();
       
   224         return 1;
       
   225     }
       
   226 
       
   227     for (int i = 1; i < argc; ++i) {
       
   228         if (args[i][0] == QLatin1Char('-') || args[i] == outputFile)
       
   229             continue;
       
   230 
       
   231         if (args[i].endsWith(QLatin1String(".pro"), Qt::CaseInsensitive)
       
   232             || args[i].endsWith(QLatin1String(".pri"), Qt::CaseInsensitive)) {
       
   233             QHash<QByteArray, QStringList> varMap;
       
   234             bool ok = evaluateProFile(args[i], verbose, &varMap );
       
   235             if (ok) {
       
   236                 QStringList translations = varMap.value("TRANSLATIONS");
       
   237                 if (translations.isEmpty()) {
       
   238                     qWarning("lrelease warning: Met no 'TRANSLATIONS' entry in"
       
   239                              " project file '%s'\n",
       
   240                              qPrintable(args[i]));
       
   241                 } else {
       
   242                     foreach (const QString &trans, translations)
       
   243                         if (!releaseTsFile(trans, verbose, ignoreUnfinished, removeIdentical, idBased, mode))
       
   244                             return 1;
       
   245                 }
       
   246             } else {
       
   247                 qWarning("error: lrelease encountered project file functionality that is currently not supported.\n"
       
   248                     "You might want to consider using TS files as input instead of a project file.\n"
       
   249                     "Try the following syntax:\n"
       
   250                     "    lrelease [options] ts-files [-qm qm-file]\n");
       
   251             }
       
   252         } else {
       
   253             if (outputFile.isEmpty()) {
       
   254                 if (!releaseTsFile(args[i], verbose, ignoreUnfinished, removeIdentical, idBased, mode))
       
   255                     return 1;
       
   256             } else {
       
   257                 if (!loadTsFile(tor, args[i], verbose))
       
   258                     return 1;
       
   259             }
       
   260         }
       
   261     }
       
   262 
       
   263     if (!outputFile.isEmpty())
       
   264         return releaseTranslator(tor, outputFile, verbose, ignoreUnfinished,
       
   265                                  removeIdentical, idBased, mode) ? 0 : 1;
       
   266 
       
   267     return 0;
       
   268 }