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****************************************************************************/

#include "lupdate.h"

#include <translator.h>

#include <profileevaluator.h>

#include <proreader.h>

#include <QtCore/QCoreApplication>

#include <QtCore/QDebug>

#include <QtCore/QDir>

#include <QtCore/QFile>

#include <QtCore/QFileInfo>

#include <QtCore/QString>

#include <QtCore/QStringList>

#include <QtCore/QTextCodec>

static QString m_defaultExtensions;

static void printOut(const QString & out)

{

    qWarning("%s", qPrintable(out));

}

static void recursiveFileInfoList(const QDir &dir,

    const QSet<QString> &nameFilters, QDir::Filters filter,

    QFileInfoList *fileinfolist)

{

    foreach (const QFileInfo &fi, dir.entryInfoList(filter))

        if (fi.isDir())

            recursiveFileInfoList(QDir(fi.absoluteFilePath()), nameFilters, filter, fileinfolist);

        else if (nameFilters.contains(fi.suffix()))

            fileinfolist->append(fi);

}

static void printUsage()

{

    printOut(QObject::tr(

        "Usage:\n"

        "    lupdate [options] [project-file]...\n"

        "    lupdate [options] [source-file|path]... -ts ts-files\n\n"

        "lupdate is part of Qt's Linguist tool chain. It extracts translatable\n"

        "messages from Qt UI files, C++, Java and JavaScript/QtScript source code.\n"

        "Extracted messages are stored in textual translation source files (typically\n"

        "Qt TS XML). New and modified messages can be merged into existing TS files.\n\n"

        "Options:\n"

        "    -help  Display this information and exit.\n"

        "    -no-obsolete\n"

        "           Drop all obsolete strings.\n"

        "    -extensions <ext>[,<ext>]...\n"

        "           Process files with the given extensions only.\n"

        "           The extension list must be separated with commas, not with whitespace.\n"

        "           Default: '%1'.\n"

        "    -pluralonly\n"

        "           Only include plural form messages.\n"

        "    -silent\n"

        "           Do not explain what is being done.\n"

        "    -no-sort\n"

        "           Do not sort contexts in TS files.\n"

        "    -no-recursive\n"

        "           Do not recursively scan the following directories.\n"

        "    -recursive\n"

        "           Recursively scan the following directories (default).\n"

        "    -I <includepath> or -I<includepath>\n"

        "           Additional location to look for include files.\n"

        "           May be specified multiple times.\n"

        "    -locations {absolute|relative|none}\n"

        "           Specify/override how source code references are saved in TS files.\n"

        "           Default is absolute.\n"

        "    -no-ui-lines\n"

        "           Do not record line numbers in references to UI files.\n"

        "    -disable-heuristic {sametext|similartext|number}\n"

        "           Disable the named merge heuristic. Can be specified multiple times.\n"

        "    -pro <filename>\n"

        "           Name of a .pro file. Useful for files with .pro\n"

        "           file syntax but different file suffix\n"

        "    -source-language <language>[_<region>]\n"

        "           Specify the language of the source strings for new files.\n"

        "           Defaults to POSIX if not specified.\n"

        "    -target-language <language>[_<region>]\n"

        "           Specify the language of the translations for new files.\n"

        "           Guessed from the file name if not specified.\n"

        "    -version\n"

        "           Display the version of lupdate and exit.\n"

    ).arg(m_defaultExtensions));

}

static void updateTsFiles(const Translator &fetchedTor, const QStringList &tsFileNames,

    const QByteArray &codecForTr, const QString &sourceLanguage, const QString &targetLanguage,

    UpdateOptions options, bool *fail)

{

    QDir dir;

    QString err;

    foreach (const QString &fileName, tsFileNames) {

        QString fn = dir.relativeFilePath(fileName);

        ConversionData cd;

        Translator tor;

        cd.m_sortContexts = !(options & NoSort);

        if (QFile(fileName).exists()) {

            if (!tor.load(fileName, cd, QLatin1String("auto"))) {

                printOut(cd.error());

                *fail = true;

                continue;

            }

            tor.resolveDuplicates();

            cd.clearErrors();

            if (!codecForTr.isEmpty() && codecForTr != tor.codecName())

                qWarning("lupdate warning: Codec for tr() '%s' disagrees with "

                         "existing file's codec '%s'. Expect trouble.",

                         codecForTr.constData(), tor.codecName().constData());

            if (!targetLanguage.isEmpty() && targetLanguage != tor.languageCode())

                qWarning("lupdate warning: Specified target language '%s' disagrees with "

                         "existing file's language '%s'. Ignoring.",

                         qPrintable(targetLanguage), qPrintable(tor.languageCode()));

            if (!sourceLanguage.isEmpty() && sourceLanguage != tor.sourceLanguageCode())

                qWarning("lupdate warning: Specified source language '%s' disagrees with "

                         "existing file's language '%s'. Ignoring.",

                         qPrintable(sourceLanguage), qPrintable(tor.sourceLanguageCode()));

        } else {

            if (!codecForTr.isEmpty())

                tor.setCodecName(codecForTr);

            if (!targetLanguage.isEmpty())

                tor.setLanguageCode(targetLanguage);

            else

                tor.setLanguageCode(Translator::guessLanguageCodeFromFileName(fileName));

            if (!sourceLanguage.isEmpty())

                tor.setSourceLanguageCode(sourceLanguage);

        }

        tor.makeFileNamesAbsolute(QFileInfo(fileName).absoluteDir());

        if (options & NoLocations)

            tor.setLocationsType(Translator::NoLocations);

        else if (options & RelativeLocations)

            tor.setLocationsType(Translator::RelativeLocations);

        else if (options & AbsoluteLocations)

            tor.setLocationsType(Translator::AbsoluteLocations);

        if (options & Verbose)

            printOut(QObject::tr("Updating '%1'...\n").arg(fn));

        UpdateOptions theseOptions = options;

        if (tor.locationsType() == Translator::NoLocations) // Could be set from file

            theseOptions |= NoLocations;

        Translator out = merge(tor, fetchedTor, theseOptions, err);

        if (!codecForTr.isEmpty())

            out.setCodecName(codecForTr);

        if ((options & Verbose) && !err.isEmpty()) {

            printOut(err);

            err.clear();

        }

        if (options & PluralOnly) {

            if (options & Verbose)

                printOut(QObject::tr("Stripping non plural forms in '%1'...\n").arg(fn));

            out.stripNonPluralForms();

        }

        if (options & NoObsolete)

            out.stripObsoleteMessages();

        out.stripEmptyContexts();

        out.normalizeTranslations(cd);

        if (!cd.errors().isEmpty()) {

            printOut(cd.error());

            cd.clearErrors();

        }

        if (!out.save(fileName, cd, QLatin1String("auto"))) {

            printOut(cd.error());

            *fail = true;

        }

    }

}

int main(int argc, char **argv)

{

    QCoreApplication app(argc, argv);

    m_defaultExtensions = QLatin1String("ui,c,c++,cc,cpp,cxx,ch,h,h++,hh,hpp,hxx");

    QStringList args = app.arguments();

    QString defaultContext; // This was QLatin1String("@default") before.

    Translator fetchedTor;

    QByteArray codecForTr;

    QByteArray codecForSource;

    QStringList tsFileNames;

    QStringList proFiles;

    QMultiHash<QString, QString> allCSources;

    QSet<QString> projectRoots;

    QStringList sourceFiles;

    QStringList includePath;

    QString targetLanguage;

    QString sourceLanguage;

    UpdateOptions options =

        Verbose | // verbose is on by default starting with Qt 4.2

        HeuristicSameText | HeuristicSimilarText | HeuristicNumber;

    int numFiles = 0;

    bool standardSyntax = true;

    bool metTsFlag = false;

    bool recursiveScan = true;

    QString extensions = m_defaultExtensions;

    QSet<QString> extensionsNameFilters;

    for (int  i = 1; i < argc; ++i) {

        if (args.at(i) == QLatin1String("-ts"))

            standardSyntax = false;

    }

    for (int i = 1; i < argc; ++i) {

        QString arg = args.at(i);

        if (arg == QLatin1String("-help")

                || arg == QLatin1String("--help")

                || arg == QLatin1String("-h")) {

            printUsage();

            return 0;

        } else if (arg == QLatin1String("-pluralonly")) {

            options |= PluralOnly;

            continue;

        } else if (arg == QLatin1String("-noobsolete")

                || arg == QLatin1String("-no-obsolete")) {

            options |= NoObsolete;

            continue;

        } else if (arg == QLatin1String("-silent")) {

            options &= ~Verbose;

            continue;

        } else if (arg == QLatin1String("-target-language")) {

            ++i;

            if (i == argc) {

                qWarning("The option -target-language requires a parameter.");

                return 1;

            }

            targetLanguage = args[i];

            continue;

        } else if (arg == QLatin1String("-source-language")) {

            ++i;

            if (i == argc) {

                qWarning("The option -source-language requires a parameter.");

                return 1;

            }

            sourceLanguage = args[i];

            continue;

        } else if (arg == QLatin1String("-disable-heuristic")) {

            ++i;

            if (i == argc) {

                qWarning("The option -disable-heuristic requires a parameter.");

                return 1;

            }

            arg = args[i];

            if (arg == QLatin1String("sametext")) {

                options &= ~HeuristicSameText;

            } else if (arg == QLatin1String("similartext")) {

                options &= ~HeuristicSimilarText;

            } else if (arg == QLatin1String("number")) {

                options &= ~HeuristicNumber;

            } else {

                qWarning("Invalid heuristic name passed to -disable-heuristic.");

                return 1;

            }

            continue;

        } else if (arg == QLatin1String("-locations")) {

            ++i;

            if (i == argc) {

                qWarning("The option -locations requires a parameter.");

                return 1;

            }

            if (args[i] == QLatin1String("none")) {

                options |= NoLocations;

            } else if (args[i] == QLatin1String("relative")) {

                options |= RelativeLocations;

            } else if (args[i] == QLatin1String("absolute")) {

                options |= AbsoluteLocations;

            } else {

                qWarning("Invalid parameter passed to -locations.");

                return 1;

            }

            continue;

        } else if (arg == QLatin1String("-no-ui-lines")) {

            options |= NoUiLines;

            continue;

        } else if (arg == QLatin1String("-verbose")) {

            options |= Verbose;

            continue;

        } else if (arg == QLatin1String("-no-recursive")) {

            recursiveScan = false;

            continue;

        } else if (arg == QLatin1String("-recursive")) {

            recursiveScan = true;

            continue;

        } else if (arg == QLatin1String("-no-sort")

                   || arg == QLatin1String("-nosort")) {

            options |= NoSort;

            continue;

        } else if (arg == QLatin1String("-version")) {

            printOut(QObject::tr("lupdate version %1\n").arg(QLatin1String(QT_VERSION_STR)));

            return 0;

        } else if (arg == QLatin1String("-ts")) {

            metTsFlag = true;

            continue;

        } else if (arg == QLatin1String("-extensions")) {

            ++i;

            if (i == argc) {

                qWarning("The -extensions option should be followed by an extension list.");

                return 1;

            }

            extensions = args[i];

            continue;

        } else if (arg == QLatin1String("-pro")) {

            ++i;

            if (i == argc) {

                qWarning("The -pro option should be followed by a filename of .pro file.");

                return 1;

            }

            proFiles += args[i];

            numFiles++;

            continue;

        } else if (arg.startsWith(QLatin1String("-I"))) {

            if (arg.length() == 2) {

                ++i;

                if (i == argc) {

                    qWarning("The -I option should be followed by a path.");

                    return 1;

                }

                includePath += args[i];

            } else {

                includePath += args[i].mid(2);

            }

            continue;

        } else if (arg.startsWith(QLatin1String("-")) && arg != QLatin1String("-")) {

            qWarning("Unrecognized option '%s'", qPrintable(arg));

            return 1;

        }

        numFiles++;

        QString fullText;

        codecForTr.clear();

        codecForSource.clear();

        if (metTsFlag) {

            bool found = false;

            foreach (const Translator::FileFormat &fmt, Translator::registeredFileFormats()) {

                if (arg.endsWith(QLatin1Char('.') + fmt.extension, Qt::CaseInsensitive)) {

                    QFileInfo fi(arg);

                    if (!fi.exists() || fi.isWritable()) {

                        tsFileNames.append(QFileInfo(arg).absoluteFilePath());

                    } else {

                        qWarning("lupdate warning: For some reason, '%s' is not writable.\n",

                                qPrintable(arg));

                    }

                    found = true;

                    break;

                }

            }

            if (!found) {

                qWarning("lupdate error: File '%s' has no recognized extension\n",

                         qPrintable(arg));

                return 1;

            }

        } else if (arg.endsWith(QLatin1String(".pro"), Qt::CaseInsensitive)

                || arg.endsWith(QLatin1String(".pri"), Qt::CaseInsensitive)) {

            proFiles << arg;

        } else {

            QFileInfo fi(arg);

            if (!fi.exists()) {

                qWarning("lupdate error: File '%s' does not exists\n", qPrintable(arg));

                return 1;

            } else if (fi.isDir()) {

                if (options & Verbose)

                    printOut(QObject::tr("Scanning directory '%1'...").arg(arg));

                QDir dir = QDir(fi.filePath());

                projectRoots.insert(dir.absolutePath() + QLatin1Char('/'));

                if (extensionsNameFilters.isEmpty()) {

                    foreach (QString ext, extensions.split(QLatin1Char(','))) {

                        ext = ext.trimmed();

                        if (ext.startsWith(QLatin1Char('.')))

                            ext.remove(0, 1);

                        extensionsNameFilters.insert(ext);

                    }

                }

                QDir::Filters filters = QDir::Files | QDir::NoSymLinks;

                if (recursiveScan)

                    filters |= QDir::AllDirs | QDir::NoDotAndDotDot;

                QFileInfoList fileinfolist;

                recursiveFileInfoList(dir, extensionsNameFilters, filters, &fileinfolist);

                int scanRootLen = dir.absolutePath().length();

                foreach (const QFileInfo &fi, fileinfolist) {

                    QString fn = QDir::cleanPath(fi.absoluteFilePath());

                    sourceFiles << fn;

                    if (!fn.endsWith(QLatin1String(".java"))

                        && !fn.endsWith(QLatin1String(".ui"))

                        && !fn.endsWith(QLatin1String(".js"))

                        && !fn.endsWith(QLatin1String(".qs"))) {

                        int offset = 0;

                        int depth = 0;

                        do {

                            offset = fn.lastIndexOf(QLatin1Char('/'), offset - 1);

                            QString ffn = fn.mid(offset + 1);

                            allCSources.insert(ffn, fn);

                        } while (++depth < 3 && offset > scanRootLen);

                    }

                }

            } else {

                sourceFiles << QDir::cleanPath(fi.absoluteFilePath());;

            }

        }

    } // for args

    foreach (const QString &proFile, proFiles)

        projectRoots.insert(QDir::cleanPath(QFileInfo(proFile).absolutePath()) + QLatin1Char('/'));

    bool firstPass = true;

    bool fail = false;

    while (firstPass || !proFiles.isEmpty()) {

        ConversionData cd;

        cd.m_defaultContext = defaultContext;

        cd.m_noUiLines = options & NoUiLines;

        cd.m_projectRoots = projectRoots;

        cd.m_includePath = includePath;

        cd.m_allCSources = allCSources;

        QStringList tsFiles = tsFileNames;

        if (proFiles.count() > 0) {

            QFileInfo pfi(proFiles.takeFirst());

            QHash<QByteArray, QStringList> variables;

            ProFileEvaluator visitor;

            visitor.setVerbose(options & Verbose);

            ProFile pro(pfi.absoluteFilePath());

            if (!visitor.queryProFile(&pro))

                return 2;

            if (!visitor.accept(&pro))

                return 2;

            if (visitor.templateType() == ProFileEvaluator::TT_Subdirs) {

                QDir proDir(pfi.absoluteDir());

                foreach (const QString &subdir, visitor.values(QLatin1String("SUBDIRS"))) {

                    QString subPro = QDir::cleanPath(proDir.absoluteFilePath(subdir));

                    QFileInfo subInfo(subPro);

                    if (subInfo.isDir())

                        proFiles << (subPro + QLatin1Char('/')

                                     + subInfo.fileName() + QLatin1String(".pro"));

                    else

                        proFiles << subPro;

                }

                continue;

            }

            cd.m_includePath += visitor.values(QLatin1String("INCLUDEPATH"));

            evaluateProFile(visitor, &variables, pfi.absolutePath());

            sourceFiles = variables.value("SOURCES");

            QStringList tmp = variables.value("CODECFORTR");

            if (!tmp.isEmpty() && !tmp.first().isEmpty()) {

                codecForTr = tmp.first().toLatin1();

                fetchedTor.setCodecName(codecForTr);

            }

            tmp = variables.value("CODECFORSRC");

            if (!tmp.isEmpty() && !tmp.first().isEmpty()) {

                codecForSource = tmp.first().toLatin1();

                if (!QTextCodec::codecForName(codecForSource))

                    qWarning("lupdate warning: Codec for source '%s' is invalid. Falling back to codec for tr().",

                             codecForSource.constData());

                else

                    cd.m_codecForSource = codecForSource;

            }

            tsFiles += variables.value("TRANSLATIONS");

        }

        QStringList sourceFilesCpp;

        for (QStringList::iterator it = sourceFiles.begin(); it != sourceFiles.end(); ++it) {

            if (it->endsWith(QLatin1String(".java"), Qt::CaseInsensitive))

                loadJava(fetchedTor, *it, cd);

            else if (it->endsWith(QLatin1String(".ui"), Qt::CaseInsensitive)

                     || it->endsWith(QLatin1String(".jui"), Qt::CaseInsensitive))

                loadUI(fetchedTor, *it, cd);

            else if (it->endsWith(QLatin1String(".js"), Qt::CaseInsensitive)

                     || it->endsWith(QLatin1String(".qs"), Qt::CaseInsensitive))

                loadQScript(fetchedTor, *it, cd);

            else

                sourceFilesCpp << *it;

        }

        loadCPP(fetchedTor, sourceFilesCpp, cd);

        if (!cd.error().isEmpty())

            printOut(cd.error());

        tsFiles.sort();