File indexing completed on 2024-05-19 05:05:34

 /***************************************************************************
  *   SPDX-License-Identifier: GPL-2.0-or-later
  *                                                                         *
  *   SPDX-FileCopyrightText: 2004-2022 Thomas Fischer <fischer@unix-ag.uni-kl.de>
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  *                                                                         *
  *   This program is distributed in the hope that it will be useful,       *
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  *   GNU General Public License for more details.                          *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program; if not, see <https://www.gnu.org/licenses/>. *
  ***************************************************************************/
 
 #include "fileexportertoolchain.h"
 
 #include <QCoreApplication>
 #include <QStringList>
 #include <QFile>
 #include <QDir>
 #include <QHash>
 #include <QTextStream>
 #include <QProcess>
 #include <QProcessEnvironment>
 #include <QVector>
 
 #ifdef HAVE_KFI18N
 #include <KLocalizedString>
 #else // HAVE_KFI18N
 #include <QObject>
 #define i18n(text) QObject::tr(text)
 #endif // HAVE_KFI18N
 
 #include "logging_io.h"
 
 FileExporterToolchain::FileExporterToolchain(QObject *parent)
         : FileExporter(parent)
 {
     tempDir.setAutoRemove(true);
 }
 
 bool FileExporterToolchain::runProcesses(const QStringList &progs, bool doEmitProcessOutput)
 {
     bool result = true;
     int i = 0;
 
     Q_EMIT progress(0, progs.size());
     for (QStringList::ConstIterator it = progs.constBegin(); result && it != progs.constEnd(); ++it) {
         QCoreApplication::instance()->processEvents();
         QStringList args = (*it).split(QStringLiteral(" "));
         QString cmd = args.first();
         args.erase(args.begin());
         result &= runProcess(cmd, args, doEmitProcessOutput);
         Q_EMIT progress(i++, progs.size());
     }
     QCoreApplication::instance()->processEvents();
     return result;
 }
 
 bool FileExporterToolchain::runProcess(const QString &cmd, const QStringList &args, bool doEmitProcessOutput)
 {
     QProcess process(this);
     QProcessEnvironment processEnvironment = QProcessEnvironment::systemEnvironment();
     /// Avoid some paranoid security settings in BibTeX
     processEnvironment.insert(QStringLiteral("openout_any"), QStringLiteral("r"));
     /// Make applications use working directory as temporary directory
     processEnvironment.insert(QStringLiteral("TMPDIR"), tempDir.path());
     processEnvironment.insert(QStringLiteral("TEMPDIR"), tempDir.path());
     process.setProcessEnvironment(processEnvironment);
     process.setWorkingDirectory(tempDir.path());
     /// Assemble the full command line (program name + arguments)
     /// for use in log messages and debug output
     const QString fullCommandLine = cmd + QStringLiteral(" ") + args.join(QStringLiteral(" "));
 
     qCInfo(LOG_KBIBTEX_IO) << "Running command" << fullCommandLine << "using working directory" << process.workingDirectory();
     process.start(cmd, args);
 
     connect(&process, &QProcess::readyReadStandardOutput, this, [this, &doEmitProcessOutput, &process] {
         QTextStream ts(process.readAllStandardOutput());
         while (!ts.atEnd()) {
             const QString line = ts.readLine();
             qCWarning(LOG_KBIBTEX_IO) << line;
             if (doEmitProcessOutput)
                 Q_EMIT processStandardOut(line);
         }
     });
     connect(&process, &QProcess::readyReadStandardError, this, [this, &doEmitProcessOutput, &process] {
         QTextStream ts(process.readAllStandardError());
         while (!ts.atEnd()) {
             const QString line = ts.readLine();
             qCDebug(LOG_KBIBTEX_IO) << line;
             if (doEmitProcessOutput)
                 Q_EMIT processStandardError(line);
         }
     });
 
     if (process.waitForStarted(3000)) {
         if (process.waitForFinished(30000)) {
             if (process.exitStatus() == QProcess::NormalExit && process.exitCode() == 0)
                 qCInfo(LOG_KBIBTEX_IO) << "Command" << fullCommandLine << "succeeded";
             else {
                 qCWarning(LOG_KBIBTEX_IO) << "Command" << fullCommandLine << "failed with exit code" << process.exitCode() << ":" << process.errorString();
                 return false;
             }
         } else {
             qCWarning(LOG_KBIBTEX_IO) << "Timeout waiting for command" << fullCommandLine << "failed:" << process.errorString();
             return false;
         }
     } else {
         qCWarning(LOG_KBIBTEX_IO) << "Starting command" << fullCommandLine << "failed:" << process.errorString();
         return false;
     }
 
     return true;
 }
 
 bool FileExporterToolchain::writeFileToIODevice(const QString &filename, QIODevice *device)
 {
     bool result = false;
     QFile file(filename);
     if (file.open(QIODevice::ReadOnly)) {
         static const qint64 buffersize = 0x10000;
         char buffer[buffersize];
         result = true;
         while (result) {
             const qint64 indata_size = file.read(buffer, buffersize);
             result &= indata_size >= 0;
             if (!result || indata_size == 0) break; //< on error or end of data
 
             qint64 remainingdata_size = buffersize;
             qint64 outdata_size = 0;
             int buffer_offset = 0;
             while (result && outdata_size < remainingdata_size) {
                 buffer_offset += outdata_size;
                 remainingdata_size -= outdata_size;
                 outdata_size = device->write(buffer + buffer_offset, remainingdata_size);
                 result &= outdata_size >= 0;
             }
         }
 
         file.close();
     }
 
     if (!result)
         qCWarning(LOG_KBIBTEX_IO) << "Writing to file" << filename << "failed";
     return result;
 }
 
 QString FileExporterToolchain::pageSizeToLaTeXName(const Preferences::PageSize pageSize) const
 {
     for (const auto &dbItem : Preferences::availablePageSizes)
         if (dbItem.first == pageSize)
             return dbItem.second;
     return pageSizeToLaTeXName(Preferences::defaultPageSize);
 }
 
 bool FileExporterToolchain::kpsewhich(const QString &filename)
 {
     static QHash<QString, bool> kpsewhichMap;
     if (kpsewhichMap.contains(filename))
         return kpsewhichMap.value(filename, false);
 
     bool result = false;
     QProcess kpsewhich;
     const QStringList param {filename};
     kpsewhich.start(QStringLiteral("kpsewhich"), param);
     if (kpsewhich.waitForStarted(3000) && kpsewhich.waitForFinished(30000)) {
         const QString standardOut = QString::fromUtf8(kpsewhich.readAllStandardOutput());
         result = kpsewhich.exitStatus() == QProcess::NormalExit && kpsewhich.exitCode() == 0 && standardOut.endsWith(QDir::separator() + filename + QStringLiteral("\n"));
         kpsewhichMap.insert(filename, result);
     }
 
     return result;
 }