Chris@66: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@66: /*
Chris@66:     Copyright (c) 2020 Queen Mary, University of London
Chris@66: 
Chris@66:     Permission is hereby granted, free of charge, to any person
Chris@66:     obtaining a copy of this software and associated documentation
Chris@66:     files (the "Software"), to deal in the Software without
Chris@66:     restriction, including without limitation the rights to use, copy,
Chris@66:     modify, merge, publish, distribute, sublicense, and/or sell copies
Chris@66:     of the Software, and to permit persons to whom the Software is
Chris@66:     furnished to do so, subject to the following conditions:
Chris@66: 
Chris@66:     The above copyright notice and this permission notice shall be
Chris@66:     included in all copies or substantial portions of the Software.
Chris@66: 
Chris@66:     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
Chris@66:     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
Chris@66:     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Chris@66:     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
Chris@66:     CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
Chris@66:     CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
Chris@66:     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Chris@66: 
Chris@66:     Except as contained in this notice, the names of the Centre for
Chris@66:     Digital Music and Queen Mary, University of London shall not be
Chris@66:     used in advertising or otherwise to promote the sale, use or other
Chris@66:     dealings in this Software without prior written authorization.
Chris@66: */
Chris@33: 
Chris@33: #include <QApplication>
Chris@33: #include <QString>
Chris@33: #include <QFile>
Chris@33: #include <QDir>
Chris@33: 
Chris@42: #include <QDialog>
Chris@42: #include <QFrame>
Chris@42: #include <QVBoxLayout>
Chris@42: #include <QCheckBox>
Chris@42: #include <QDialogButtonBox>
Chris@46: #include <QLabel>
Chris@51: #include <QFont>
Chris@51: #include <QFontInfo>
Chris@67: #include <QTemporaryFile>
Chris@67: #include <QMutex>
Chris@67: #include <QMutexLocker>
Chris@67: #include <QProcess>
Chris@72: #include <QToolButton>
Chris@79: #include <QPushButton>
Chris@72: #include <QMessageBox>
Chris@74: #include <QSvgRenderer>
Chris@74: #include <QPainter>
Chris@74: #include <QFontMetrics>
Chris@79: #include <QSpacerItem>
Chris@81: #include <QProgressDialog>
Chris@81: #include <QThread>
Chris@86: #include <QDateTime>
Chris@98: #include <QTimer>
Chris@42: 
Chris@41: #include <vamp-hostsdk/PluginHostAdapter.h>
Chris@41: 
Chris@43: #include <dataquay/BasicStore.h>
Chris@43: #include <dataquay/RDFException.h>
Chris@43: 
Chris@33: #include <iostream>
Chris@58: #include <memory>
Chris@43: #include <set>
Chris@43: 
Chris@51: #include "base/Debug.h"
Chris@51: 
Chris@79: #include "version.h"
Chris@79: 
Chris@33: using namespace std;
Chris@43: using namespace Dataquay;
Chris@32: 
Chris@42: QString
Chris@42: getDefaultInstallDirectory()
Chris@32: {
Chris@41:     auto pathList = Vamp::PluginHostAdapter::getPluginPath();
Chris@41:     if (pathList.empty()) {
Chris@51:         SVCERR << "Failed to look up Vamp plugin path" << endl;
Chris@42:         return QString();
Chris@41:     }
Chris@41: 
Chris@42:     auto firstPath = *pathList.begin();
Chris@42:     QString target = QString::fromUtf8(firstPath.c_str(), firstPath.size());
Chris@42:     return target;
Chris@42: }
Chris@42: 
Chris@42: QStringList
Chris@42: getPluginLibraryList()
Chris@42: {
Chris@33:     QDir dir(":out/");
Chris@33:     auto entries = dir.entryList({ "*.so", "*.dll", "*.dylib" });
Chris@33: 
Chris@33:     for (auto e: entries) {
Chris@51:         SVCERR << e.toStdString() << endl;
Chris@33:     }
Chris@33: 
Chris@42:     return entries;
Chris@42: }
Chris@33: 
Chris@50: void
Chris@50: loadLibraryRdf(BasicStore &store, QString filename)
Chris@50: {
Chris@50:     QFile f(filename);
Chris@50:     if (!f.open(QFile::ReadOnly | QFile::Text)) {
Chris@51:         SVCERR << "Failed to open RDF resource file "
Chris@51:                << filename.toStdString() << endl;
Chris@50:         return;
Chris@50:     }
Chris@50: 
Chris@50:     QByteArray content = f.readAll();
Chris@50:     f.close();
Chris@50: 
Chris@50:     try {
Chris@50:         store.importString(QString::fromUtf8(content), 
Chris@50:                            Uri("file:" + filename),
Chris@50:                            BasicStore::ImportIgnoreDuplicates);
Chris@50:     } catch (const RDFException &ex) {
Chris@51:         SVCERR << "Failed to import RDF resource file "
Chris@51:                << filename.toStdString() << ": " << ex.what() << endl;
Chris@50:     }
Chris@50: }
Chris@50: 
Chris@43: unique_ptr<BasicStore>
Chris@43: loadLibrariesRdf()
Chris@43: {
Chris@43:     unique_ptr<BasicStore> store(new BasicStore);
Chris@43: 
Chris@50:     vector<QString> dirs { ":rdf/plugins", ":out" };
Chris@43: 
Chris@50:     for (auto d: dirs) {
Chris@50:         for (auto e: QDir(d).entryList({ "*.ttl", "*.n3" })) {
Chris@50:             loadLibraryRdf(*store, d + "/" + e);
Chris@43:         }
Chris@43:     }
Chris@43: 
Chris@43:     return store;
Chris@43: }
Chris@43: 
Chris@43: struct LibraryInfo {
Chris@43:     QString id;
Chris@43:     QString fileName;
Chris@43:     QString title;
Chris@43:     QString maker;
Chris@43:     QString description;
Chris@78:     QString page;
Chris@47:     QStringList pluginTitles;
Chris@74:     QString licence;
Chris@43: };
Chris@43: 
Chris@99: struct Licence
Chris@99: {
Chris@99:     static QString gpl;
Chris@99:     static QString gpl2;
Chris@99:     static QString gpl3;
Chris@99:     static QString agpl;
Chris@99:     static QString apache;
Chris@99:     static QString mit;
Chris@99: };
Chris@99: 
Chris@99: QString Licence::gpl = "GNU General Public License";
Chris@99: QString Licence::gpl2 = "GNU General Public License, version 2";
Chris@99: QString Licence::gpl3 = "GNU General Public License, version 3";
Chris@99: QString Licence::agpl = "GNU Affero General Public License";
Chris@99: QString Licence::apache = "Apache License";
Chris@99: QString Licence::mit = "MIT License";
Chris@99: 
Chris@74: QString
Chris@74: identifyLicence(QString libraryBasename)
Chris@74: {
Chris@74:     QString licenceFile = QString(":out/%1_COPYING.txt").arg(libraryBasename);
Chris@74: 
Chris@74:     QFile f(licenceFile);
Chris@74:     if (!f.open(QFile::ReadOnly | QFile::Text)) {
Chris@74:         SVCERR << "Failed to open licence file "
Chris@74:                << licenceFile.toStdString() << endl;
Chris@74:         return {};
Chris@74:     }
Chris@74: 
Chris@74:     QByteArray content = f.readAll();
Chris@74:     f.close();
Chris@74: 
Chris@74:     QString licenceText = QString::fromUtf8(content);
Chris@74: 
Chris@82:     // NB these are not expected to identify an arbitrary licence! We
Chris@74:     // know we have only a limited set here. But we do want to
Chris@74:     // determine this from the actual licence text included with the
Chris@74:     // plugin distribution, not just from e.g. RDF metadata
Chris@74:     
Chris@99:     if (licenceText.contains(Licence::gpl.toUpper(), Qt::CaseSensitive)) {
Chris@74:         if (licenceText.contains("Version 3, 29 June 2007")) {
Chris@99:             return Licence::gpl3;
Chris@74:         } else if (licenceText.contains("Version 2, June 1991")) {
Chris@99:             return Licence::gpl2;
Chris@74:         } else {
Chris@99:             return Licence::gpl;
Chris@74:         }
Chris@74:     }
Chris@99:     if (licenceText.contains(Licence::agpl.toUpper(), Qt::CaseSensitive)) {
Chris@99:         return Licence::agpl;
Chris@74:     }
Chris@99:     if (licenceText.contains(Licence::apache)) {
Chris@99:         return Licence::apache;
Chris@74:     }
Chris@74:     if (licenceText.contains("Permission is hereby granted, free of charge, to any person")) {
Chris@99:         return Licence::mit;
Chris@74:     }
Chris@74: 
Chris@74:     SVCERR << "Didn't recognise licence for " << libraryBasename << endl;
Chris@74:     
Chris@74:     return {};
Chris@74: }
Chris@74: 
Chris@99: QString
Chris@99: getLicenceURL(QString licence)
Chris@99: {
Chris@99:     if (licence == Licence::gpl ||
Chris@99:         licence == Licence::gpl3) {
Chris@99:         return "https://www.gnu.org/licenses/gpl-3.0.en.html";
Chris@99:     } else if (licence == Licence::gpl2) {
Chris@99:         return "https://www.gnu.org/licenses/old-licenses/gpl-2.0.html";
Chris@99:     } else if (licence == Licence::agpl) {
Chris@99:         return "https://www.gnu.org/licenses/agpl-3.0.html";
Chris@99:     } else if (licence == Licence::apache) {
Chris@99:         return "https://www.apache.org/licenses/LICENSE-2.0";
Chris@99:     } else if (licence == Licence::mit) {
Chris@99:         return "https://opensource.org/licenses/MIT";
Chris@99:     }
Chris@99: 
Chris@99:     return {};
Chris@99: }
Chris@99: 
Chris@43: vector<LibraryInfo>
Chris@43: getLibraryInfo(const Store &store, QStringList libraries)
Chris@43: {
Chris@43:     /* e.g.
Chris@43: 
Chris@43:        plugbase:library a vamp:PluginLibrary ;
Chris@43:        vamp:identifier "qm-vamp-plugins" ; 
Chris@43:        dc:title "Queen Mary plugin set"
Chris@43:     */
Chris@43: 
Chris@43:     Triples tt = store.match(Triple(Node(),
Chris@43:                                     Uri("a"),
Chris@43:                                     store.expand("vamp:PluginLibrary")));
Chris@43: 
Chris@67:     map<QString, QString> wanted; // basename -> full lib name
Chris@43:     for (auto lib: libraries) {
Chris@43:         wanted[QFileInfo(lib).baseName()] = lib;
Chris@43:     }
Chris@43:     
Chris@43:     vector<LibraryInfo> results;
Chris@43:     
Chris@43:     for (auto t: tt) {
Chris@43: 
Chris@43:         Node libId = store.complete(Triple(t.subject(),
Chris@43:                                            store.expand("vamp:identifier"),
Chris@43:                                            Node()));
Chris@43:         if (libId.type != Node::Literal) {
Chris@43:             continue;
Chris@43:         }
Chris@43:         auto wi = wanted.find(libId.value);
Chris@43:         if (wi == wanted.end()) {
Chris@43:             continue;
Chris@43:         }
Chris@74: 
Chris@50:         Node title = store.complete(Triple(t.subject(),
Chris@50:                                            store.expand("dc:title"),
Chris@50:                                            Node()));
Chris@50:         if (title.type != Node::Literal) {
Chris@50:             continue;
Chris@50:         }
Chris@50: 
Chris@43:         LibraryInfo info;
Chris@43:         info.id = wi->first;
Chris@43:         info.fileName = wi->second;
Chris@50:         info.title = title.value;
Chris@43:         
Chris@43:         Node maker = store.complete(Triple(t.subject(),
Chris@43:                                            store.expand("foaf:maker"),
Chris@43:                                            Node()));
Chris@43:         if (maker.type == Node::Literal) {
Chris@43:             info.maker = maker.value;
Chris@46:         } else if (maker != Node()) {
Chris@46:             maker = store.complete(Triple(maker,
Chris@46:                                           store.expand("foaf:name"),
Chris@46:                                           Node()));
Chris@46:             if (maker.type == Node::Literal) {
Chris@46:                 info.maker = maker.value;
Chris@46:             }
Chris@43:         }
Chris@46:             
Chris@43:         Node desc = store.complete(Triple(t.subject(),
Chris@43:                                           store.expand("dc:description"),
Chris@43:                                           Node()));
Chris@43:         if (desc.type == Node::Literal) {
Chris@43:             info.description = desc.value;
Chris@43:         }
Chris@78:             
Chris@78:         Node page = store.complete(Triple(t.subject(),
Chris@78:                                           store.expand("foaf:page"),
Chris@78:                                           Node()));
Chris@79:         if (page.type == Node::URI) {
Chris@79:             info.page = page.value;
Chris@78:         }
Chris@43: 
Chris@47:         Triples pp = store.match(Triple(t.subject(),
Chris@47:                                         store.expand("vamp:available_plugin"),
Chris@47:                                         Node()));
Chris@47:         for (auto p: pp) {
Chris@47:             Node ptitle = store.complete(Triple(p.object(),
Chris@47:                                                 store.expand("dc:title"),
Chris@47:                                                 Node()));
Chris@47:             if (ptitle.type == Node::Literal) {
Chris@47:                 info.pluginTitles.push_back(ptitle.value);
Chris@47:             }
Chris@47:         }
Chris@74: 
Chris@74:         info.licence = identifyLicence(libId.value);
Chris@74:         SVCERR << "licence = " << info.licence << endl;
Chris@47:         
Chris@43:         results.push_back(info);
Chris@50:         wanted.erase(libId.value);
Chris@43:     }
Chris@43: 
Chris@50:     for (auto wp: wanted) {
Chris@51:         SVCERR << "Failed to find any RDF information about library "
Chris@51:                << wp.second << endl;
Chris@50:     }
Chris@50:     
Chris@43:     return results;
Chris@43: }
Chris@43: 
Chris@67: struct TempFileDeleter {
Chris@67:     ~TempFileDeleter() {
Chris@67:         if (tempFile != "") {
Chris@67:             QFile(tempFile).remove();
Chris@67:         }
Chris@67:     }
Chris@67:     QString tempFile;
Chris@67: };
Chris@67: 
Chris@97: bool
Chris@97: unbundleFile(QString filePath, QString targetPath, bool isExecutable)
Chris@97: {
Chris@97:     SVCERR << "Copying " << filePath.toStdString() << " to "
Chris@97:            << targetPath.toStdString() << "..." << endl;
Chris@97: 
Chris@97:     // This has to be able to work even if the destination exists, and
Chris@97:     // to do so without deleting it first - e.g. when copying to a
Chris@97:     // temporary file. So we open the file and copy to it ourselves
Chris@97:     // rather than use QFile::copy
Chris@97: 
Chris@97:     QFile source(filePath);
Chris@97:     if (!source.open(QFile::ReadOnly)) {
Chris@97:         SVCERR << "ERROR: Failed to read bundled file " << filePath << endl;
Chris@97:         return {};
Chris@97:     }
Chris@97:     QByteArray content = source.readAll();
Chris@97:     source.close();
Chris@97: 
Chris@97:     QFile target(targetPath);
Chris@97:     if (!target.open(QFile::WriteOnly)) {
Chris@97:         SVCERR << "ERROR: Failed to read target file " << targetPath << endl;
Chris@97:         return {};
Chris@97:     }
Chris@97:     if (target.write(content) != content.size()) {
Chris@97:         SVCERR << "ERROR: Incomplete write to target file" << endl;
Chris@97:         return {};
Chris@97:     }
Chris@97:     target.close();
Chris@97: 
Chris@97:     auto permissions =
Chris@97:         QFile::ReadOwner | QFile::WriteOwner |
Chris@97:         QFile::ReadGroup |
Chris@97:         QFile::ReadOther;
Chris@97: 
Chris@97:     if (isExecutable) {
Chris@97:         permissions |=
Chris@97:             QFile::ExeOwner |
Chris@97:             QFile::ExeGroup |
Chris@97:             QFile::ExeOther;
Chris@97:     };
Chris@97:     
Chris@97:     if (!QFile::setPermissions(targetPath, permissions)) {
Chris@97:         SVCERR << "Failed to set permissions on "
Chris@97:                << targetPath.toStdString() << endl;
Chris@97:         return false;
Chris@97:     }
Chris@97: 
Chris@97:     return true;
Chris@97: }
Chris@97: 
Chris@67: map<QString, int>
Chris@70: getLibraryPluginVersions(QString libraryFilePath)
Chris@67: {
Chris@67:     static QMutex mutex;
Chris@67:     static QString tempFileName;
Chris@67:     static TempFileDeleter deleter;
Chris@67:     static bool initHappened = false, initSucceeded = false;
Chris@67: 
Chris@67:     QMutexLocker locker (&mutex);
Chris@67: 
Chris@67:     if (!initHappened) {
Chris@67:         initHappened = true;
Chris@67: 
Chris@67:         QTemporaryFile tempFile;
Chris@67:         tempFile.setAutoRemove(false);
Chris@67:         if (!tempFile.open()) {
Chris@67:             SVCERR << "ERROR: Failed to open a temporary file" << endl;
Chris@67:             return {};
Chris@67:         }
Chris@67: 
Chris@67:         // We can't make the QTemporaryFile static, as it will hold
Chris@67:         // the file open and that prevents us from executing it. Hence
Chris@67:         // the separate deleter.
Chris@67:         
Chris@67:         tempFileName = tempFile.fileName();
Chris@67:         deleter.tempFile = tempFileName;
Chris@67:         
Chris@67: #ifdef Q_OS_WIN32
Chris@67:         QString helperPath = ":out/get-version.exe";
Chris@67: #else
Chris@67:         QString helperPath = ":out/get-version";
Chris@97: #endif
Chris@97: 
Chris@97:         tempFile.close();
Chris@97:         if (!unbundleFile(helperPath, tempFileName, true)) {
Chris@97:             SVCERR << "ERROR: Failed to unbundle helper code" << endl;
Chris@67:             return {};
Chris@67:         }
Chris@67: 
Chris@67:         initSucceeded = true;
Chris@67:     }
Chris@67: 
Chris@67:     if (!initSucceeded) {
Chris@67:         return {};
Chris@67:     }
Chris@67: 
Chris@67:     QProcess process;
Chris@67:     process.start(tempFileName, { libraryFilePath });
Chris@67: 
Chris@67:     if (!process.waitForStarted()) {
Chris@67:         QProcess::ProcessError err = process.error();
Chris@67:         if (err == QProcess::FailedToStart) {
Chris@67:             SVCERR << "Unable to start helper process " << tempFileName << endl;
Chris@67:         } else if (err == QProcess::Crashed) {
Chris@67:             SVCERR << "Helper process " << tempFileName
Chris@67:                    << " crashed on startup" << endl;
Chris@67:         } else {
Chris@67:             SVCERR << "Helper process " << tempFileName
Chris@67:                    << " failed on startup with error code " << err << endl;
Chris@67:         }
Chris@67:         return {};
Chris@67:     }
Chris@67:     process.waitForFinished();
Chris@67: 
Chris@67:     QByteArray stdOut = process.readAllStandardOutput();
Chris@67:     QByteArray stdErr = process.readAllStandardError();
Chris@67: 
Chris@67:     QString errStr = QString::fromUtf8(stdErr);
Chris@67:     if (!errStr.isEmpty()) {
Chris@67:         SVCERR << "Note: Helper process stderr follows:" << endl;
Chris@67:         SVCERR << errStr << endl;
Chris@67:         SVCERR << "Note: Helper process stderr ends" << endl;
Chris@67:     }
Chris@67: 
Chris@67:     QStringList lines = QString::fromUtf8(stdOut).split
Chris@67:         (QRegExp("[\\r\\n]+"), QString::SkipEmptyParts);
Chris@67:     map<QString, int> versions;
Chris@67:     for (QString line: lines) {
Chris@67:         QStringList parts = line.split(":");
Chris@67:         if (parts.size() != 2) {
Chris@67:             SVCERR << "Unparseable output line: " << line << endl;
Chris@67:             continue;
Chris@67:         }
Chris@67:         bool ok = false;
Chris@67:         int version = parts[1].toInt(&ok);
Chris@67:         if (!ok) {
Chris@67:             SVCERR << "Unparseable version number in line: " << line << endl;
Chris@67:             continue;
Chris@67:         }
Chris@67:         versions[parts[0]] = version;
Chris@67:     }
Chris@67: 
Chris@67:     return versions;
Chris@67: }
Chris@67: 
Chris@97: map<QString, int>
Chris@97: getBundledLibraryPluginVersions(QString libraryFileName)
Chris@97: {
Chris@97:     QString tempFileName;
Chris@97:     TempFileDeleter deleter;
Chris@97: 
Chris@97:     {
Chris@97:         QTemporaryFile tempFile;
Chris@97:         tempFile.setAutoRemove(false);
Chris@97:         if (!tempFile.open()) {
Chris@97:             SVCERR << "ERROR: Failed to open a temporary file" << endl;
Chris@97:             return {};
Chris@97:         }
Chris@97: 
Chris@97:         // We can't use QTemporaryFile's auto-remove, as it will hold
Chris@97:         // the file open and that prevents us from executing it. Hence
Chris@97:         // the separate deleter.
Chris@97:         
Chris@97:         tempFileName = tempFile.fileName();
Chris@97:         deleter.tempFile = tempFileName;
Chris@97:         tempFile.close();
Chris@97:     }
Chris@97: 
Chris@97:     if (!unbundleFile(":out/" + libraryFileName, tempFileName, true)) {
Chris@97:         return {};
Chris@97:     }
Chris@97: 
Chris@97:     return getLibraryPluginVersions(tempFileName);
Chris@97: }
Chris@97: 
Chris@67: bool isLibraryNewer(map<QString, int> a, map<QString, int> b)
Chris@67: {
Chris@67:     // a and b are maps from plugin id to plugin version for libraries
Chris@67:     // A and B. (There is no overarching library version number.) We
Chris@67:     // deem library A to be newer than library B if:
Chris@67:     // 
Chris@67:     // 1. A contains a plugin id that is also in B, whose version in
Chris@67:     // A is newer than that in B, or
Chris@67:     //
Chris@67:     // 2. B is not newer than A according to rule 1, and neither A or
Chris@67:     // B is empty, and A contains a plugin id that is not in B, and B
Chris@67:     // does not contain any plugin id that is not in A
Chris@67:     //
Chris@67:     // (The not-empty part of rule 2 is just to avoid false positives
Chris@67:     // when a library or its metadata could not be read at all.)
Chris@67: 
Chris@67:     auto containsANewerPlugin = [](const map<QString, int> &m1,
Chris@67:                                    const map<QString, int> &m2) {
Chris@67:                                     for (auto p: m1) {
Chris@67:                                         if (m2.find(p.first) != m2.end() &&
Chris@67:                                             p.second > m2.at(p.first)) {
Chris@67:                                             return true;
Chris@67:                                         }
Chris@67:                                     }
Chris@67:                                     return false;
Chris@67:                                 };
Chris@67: 
Chris@67:     auto containsANovelPlugin = [](const map<QString, int> &m1,
Chris@67:                                    const map<QString, int> &m2) {
Chris@67:                                     for (auto p: m1) {
Chris@67:                                         if (m2.find(p.first) == m2.end()) {
Chris@67:                                             return true;
Chris@67:                                         }
Chris@67:                                     }
Chris@67:                                     return false;
Chris@67:                                 };
Chris@67: 
Chris@67:     if (containsANewerPlugin(a, b)) {
Chris@67:         return true;
Chris@67:     }
Chris@67:     
Chris@67:     if (!containsANewerPlugin(b, a) &&
Chris@67:         !a.empty() &&
Chris@67:         !b.empty() &&
Chris@67:         containsANovelPlugin(a, b) &&
Chris@67:         !containsANovelPlugin(b, a)) {
Chris@67:         return true;
Chris@67:     }
Chris@67: 
Chris@67:     return false;
Chris@67: }
Chris@67: 
Chris@67: QString
Chris@67: versionsString(const map<QString, int> &vv)
Chris@67: {
Chris@67:     QStringList pv;
Chris@67:     for (auto v: vv) {
Chris@67:         pv.push_back(QString("%1:%2").arg(v.first).arg(v.second));
Chris@67:     }
Chris@67:     return "{ " + pv.join(", ") + " }";
Chris@67: }
Chris@67: 
Chris@75: enum class RelativeStatus {
Chris@75:     New,
Chris@75:     Same,
Chris@75:     Upgrade,
Chris@75:     Downgrade,
Chris@75:     TargetNotLoadable
Chris@75: };
Chris@75: 
Chris@75: QString
Chris@75: relativeStatusLabel(RelativeStatus status) {
Chris@75:     switch (status) {
Chris@76:     case RelativeStatus::New: return QObject::tr("Not yet installed");
Chris@76:     case RelativeStatus::Same: return QObject::tr("Already installed");
Chris@76:     case RelativeStatus::Upgrade: return QObject::tr("Update");
Chris@76:     case RelativeStatus::Downgrade: return QObject::tr("Newer version installed");
Chris@84:     case RelativeStatus::TargetNotLoadable: return QObject::tr("Installed version not working");
Chris@79:     default: return {};
Chris@75:     }
Chris@75: }
Chris@75: 
Chris@75: RelativeStatus
Chris@75: getRelativeStatus(LibraryInfo info, QString targetDir)
Chris@75: {
Chris@75:     QString destination = targetDir + "/" + info.fileName;
Chris@75: 
Chris@75:     SVCERR << "\ngetRelativeStatus: " << info.fileName << ":\n";
Chris@75: 
Chris@97:     if (!QFileInfo(destination).exists()) {
Chris@97:         SVCERR << " - relative status: " << relativeStatusLabel(RelativeStatus::New) << endl;
Chris@97:         return RelativeStatus::New;
Chris@97:     }
Chris@75: 
Chris@97:     RelativeStatus status = RelativeStatus::Same;
Chris@75: 
Chris@97:     auto packaged = getBundledLibraryPluginVersions(info.fileName);
Chris@97:     auto installed = getLibraryPluginVersions(destination);
Chris@75: 
Chris@97:     SVCERR << " * installed: " << versionsString(installed)
Chris@97:            << "\n * packaged:  " << versionsString(packaged)
Chris@97:            << endl;
Chris@75: 
Chris@97:     if (installed.empty()) {
Chris@97:         status = RelativeStatus::TargetNotLoadable;
Chris@97:     }
Chris@75: 
Chris@97:     if (isLibraryNewer(installed, packaged)) {
Chris@97:         status = RelativeStatus::Downgrade;
Chris@97:     }
Chris@75: 
Chris@97:     if (isLibraryNewer(packaged, installed)) {
Chris@97:         status = RelativeStatus::Upgrade;
Chris@75:     }
Chris@75: 
Chris@75:     SVCERR << " - relative status: " << relativeStatusLabel(status) << endl;
Chris@75: 
Chris@75:     return status;
Chris@75: }
Chris@75: 
Chris@86: bool
Chris@86: backup(QString filePath, QString backupDir)
Chris@86: {
Chris@86:     QFileInfo file(filePath);
Chris@86:     
Chris@86:     if (!file.exists()) {
Chris@86:         return true;
Chris@86:     }
Chris@86:     
Chris@86:     if (!QDir(backupDir).exists()) {
Chris@86:         QDir().mkpath(backupDir);
Chris@86:     }
Chris@86:     
Chris@86:     QString backup = backupDir + "/" + file.fileName() + ".bak";
Chris@86:     SVCERR << "Note: existing file " << filePath
Chris@86:            << " found, backing up to " << backup << endl;
Chris@86:     if (!QFile(filePath).rename(backup)) {
Chris@86:         SVCERR << "Failed to move " << filePath.toStdString()
Chris@86:                << " to backup " << backup.toStdString() << endl;
Chris@86:         return false;
Chris@86:     }
Chris@86: 
Chris@86:     return true;
Chris@86: }
Chris@86: 
Chris@81: QString
Chris@75: installLibrary(LibraryInfo info, QString targetDir)
Chris@42: {
Chris@75:     QString library = info.fileName;
Chris@52:     QString source = ":out";
Chris@75:     QString destination = targetDir + "/" + library;
Chris@94: 
Chris@94:     static QString backupDirName;
Chris@94:     if (backupDirName == "") {
Chris@94:         // Static so as to be created once - don't go creating a
Chris@94:         // second directory if the clock ticks over by one second
Chris@94:         // between library installs
Chris@94:         backupDirName = 
Chris@94:             QString("saved-%1").arg(QDateTime::currentDateTime().toString
Chris@94:                                     ("yyyyMMdd-hhmmss"));
Chris@94:     }
Chris@94:     QString backupDir = targetDir + "/" + backupDirName;
Chris@67: 
Chris@86:     if (!QDir(targetDir).exists()) {
Chris@86:         QDir().mkpath(targetDir);
Chris@67:     }
Chris@82: 
Chris@86:     if (!backup(destination, backupDir)) {
Chris@86:         return QObject::tr("Failed to move aside existing library");
Chris@86:     }
Chris@97: 
Chris@97:     if (!unbundleFile(source + "/" + library, destination, true)) {
Chris@97:         return QObject::tr("Failed to copy library file to target directory");
Chris@97:     }
Chris@52:     
Chris@52:     QString base = QFileInfo(library).baseName();
Chris@52:     QDir dir(source);
Chris@52:     auto entries = dir.entryList({ base + "*" });
Chris@52:     for (auto e: entries) {
Chris@52:         if (e == library) continue;
Chris@75:         QString destination = targetDir + "/" + e;
Chris@86:         if (!backup(destination, backupDir)) {
Chris@86:             continue;
Chris@86:         }
Chris@97:         if (!unbundleFile(source + "/" + e, destination, false)) {
Chris@68:             continue;
Chris@52:         }
Chris@52:     }
Chris@81: 
Chris@81:     return {};
Chris@42: }
Chris@42: 
Chris@99: QString
Chris@99: getHelpText(vector<LibraryInfo> libraries)
Chris@99: {
Chris@99:     set<QString, function<bool (QString, QString)>>
Chris@99:         makers
Chris@99:         ([](QString k1, QString k2) {
Chris@99:              return k1.localeAwareCompare(k2) < 0;
Chris@99:          });
Chris@99: 
Chris@99:     for (auto info: libraries) {
Chris@99:         makers.insert(info.maker);
Chris@99:     }
Chris@99: 
Chris@99:     QString makerList;
Chris@99:     for (QString maker: makers) {
Chris@99:         makerList += QObject::tr("<li>%1</li>").arg(maker);
Chris@99:     }
Chris@99:     
Chris@99:     return QObject::tr
Chris@99:         ("<p>Vamp Plugin Pack collects together a number of <a href=\"https://vamp-plugins.org\">Vamp audio analysis plugins</a> into a single installer.</p>"
Chris@99:          "<p>The libraries you select will be installed into the standard Vamp plugin directory, where hosts such as <a href=\"https://sonicvisualiser.org/\">Sonic Visualiser</a> can find them.</p>"
Chris@99:          "<p>The plugin libraries included here were developed and published by various different authors and institutions:</p><ul>%1</ul>"
Chris@99:          "<p>All of the libraries are open source and are redistributable under open-source licences. Click the information icon to the right of each library in the main window for more details.</p>"
Chris@99:          "<p>The entire pack may be redistributed under the <a href=\"%2\">GNU Affero General Public License v3</a>.</p>"
Chris@99:          "<p>The plugins were collected together, and the installer was written and published, at the <a href=\"https://c4dm.eecs.qmul.ac.uk\">Centre for Digital Music</a>, Queen Mary University of London.</p>")
Chris@99:         .arg(makerList)
Chris@99:         .arg(getLicenceURL(Licence::agpl));
Chris@99: }
Chris@99: 
Chris@75: vector<LibraryInfo>
Chris@75: getUserApprovedPluginLibraries(vector<LibraryInfo> libraries,
Chris@75:                                QString targetDir)
Chris@42: {
Chris@42:     QDialog dialog;
Chris@46: 
Chris@84:     int fontHeight = QFontMetrics(dialog.font()).height();
Chris@84:     int dpratio = dialog.devicePixelRatio();
Chris@84: 
Chris@46:     auto mainLayout = new QGridLayout;
Chris@47:     mainLayout->setSpacing(0);
Chris@46:     dialog.setLayout(mainLayout);
Chris@46: 
Chris@46:     int mainRow = 0;
Chris@46:     
Chris@74:     auto selectionFrame = new QWidget;
Chris@74:     mainLayout->addWidget(selectionFrame, mainRow, 0);
Chris@47:     ++mainRow;
Chris@46:     
Chris@46:     auto selectionLayout = new QGridLayout;
Chris@84:     selectionLayout->setContentsMargins(0, 0, 0, 0);
Chris@84:     selectionLayout->setSpacing(fontHeight / 6);
Chris@46:     selectionFrame->setLayout(selectionLayout);
Chris@84: 
Chris@46:     int selectionRow = 0;
Chris@84:     int checkColumn = 0;
Chris@84:     int titleColumn = 1;
Chris@84:     int statusColumn = 2;
Chris@85:     int infoColumn = 4; // column 3 is a small sliver of spacing
Chris@79: 
Chris@126:     QString additionalNote = "";
Chris@126:     if (sizeof(char *) == 4) {
Chris@126:         additionalNote = QObject::tr("(32-bit)");
Chris@126:     }
Chris@126:     
Chris@79:     selectionLayout->addWidget
Chris@126:         (new QLabel(QObject::tr("<b>Vamp Plugin Pack</b> v%1 %2")
Chris@126:                     .arg(PACK_VERSION)
Chris@126:                     .arg(additionalNote)),
Chris@84:          selectionRow, titleColumn, 1, 3);
Chris@79:     ++selectionRow;
Chris@79: 
Chris@79:     selectionLayout->addWidget
Chris@79:         (new QLabel(QObject::tr("Select the plugin libraries to install:")),
Chris@84:          selectionRow, titleColumn, 1, 3);
Chris@79:     ++selectionRow;
Chris@74:     
Chris@74:     auto checkAll = new QCheckBox;
Chris@74:     checkAll->setChecked(true);
Chris@84:     selectionLayout->addWidget
Chris@84:         (checkAll, selectionRow, checkColumn, Qt::AlignHCenter);
Chris@74:     ++selectionRow;
Chris@74: 
Chris@85:     auto checkArrow = new QLabel(
Chris@85: #ifdef Q_OS_MAC
Chris@85:         "&nbsp;&nbsp;&#9660;"
Chris@85: #else
Chris@85:         "&#9660;"
Chris@85: #endif
Chris@85:         );
Chris@74:     checkArrow->setTextFormat(Qt::RichText);
Chris@84:     selectionLayout->addWidget
Chris@84:         (checkArrow, selectionRow, checkColumn, Qt::AlignHCenter);
Chris@74:     ++selectionRow;
Chris@42: 
Chris@67:     map<QString, QCheckBox *> checkBoxMap; // filename -> checkbox
Chris@67:     map<QString, LibraryInfo> libFileInfo; // filename -> info
Chris@76:     map<QString, RelativeStatus> statuses; // filename -> status
Chris@43: 
Chris@67:     map<QString, LibraryInfo, function<bool (QString, QString)>>
Chris@49:         orderedInfo
Chris@49:         ([](QString k1, QString k2) {
Chris@49:              return k1.localeAwareCompare(k2) < 0;
Chris@49:          });
Chris@43:     for (auto info: libraries) {
Chris@43:         orderedInfo[info.title] = info;
Chris@43:     }
Chris@53: 
Chris@77:     QPixmap infoMap(fontHeight * dpratio, fontHeight * dpratio);
Chris@77:     QPixmap moreMap(fontHeight * dpratio * 2, fontHeight * dpratio * 2);
Chris@74:     infoMap.fill(Qt::transparent);
Chris@74:     moreMap.fill(Qt::transparent);
Chris@74:     QSvgRenderer renderer(QString(":icons/scalable/info.svg"));
Chris@74:     QPainter painter;
Chris@74:     painter.begin(&infoMap);
Chris@74:     renderer.render(&painter);
Chris@74:     painter.end();
Chris@74:     painter.begin(&moreMap);
Chris@74:     renderer.render(&painter);
Chris@74:     painter.end();
Chris@74: 
Chris@76:     auto shouldCheck = [](RelativeStatus status) {
Chris@76:                            return (status == RelativeStatus::New ||
Chris@76:                                    status == RelativeStatus::Upgrade ||
Chris@76:                                    status == RelativeStatus::TargetNotLoadable);
Chris@76:                        };
Chris@76:     
Chris@43:     for (auto ip: orderedInfo) {
Chris@46: 
Chris@46:         auto cb = new QCheckBox;
Chris@84:         selectionLayout->addWidget
Chris@84:             (cb, selectionRow, checkColumn, Qt::AlignHCenter);
Chris@46: 
Chris@43:         LibraryInfo info = ip.second;
Chris@72: 
Chris@76:         auto shortLabel = new QLabel(info.title);
Chris@84:         selectionLayout->addWidget(shortLabel, selectionRow, titleColumn);
Chris@76: 
Chris@75:         RelativeStatus relativeStatus = getRelativeStatus(info, targetDir);
Chris@76:         auto statusLabel = new QLabel(relativeStatusLabel(relativeStatus));
Chris@84:         selectionLayout->addWidget(statusLabel, selectionRow, statusColumn);
Chris@76:         cb->setChecked(shouldCheck(relativeStatus));
Chris@75:         
Chris@79:         auto infoButton = new QToolButton;
Chris@79:         infoButton->setAutoRaise(true);
Chris@79:         infoButton->setIcon(infoMap);
Chris@79:         infoButton->setIconSize(QSize(fontHeight, fontHeight));
Chris@77: 
Chris@77: #ifdef Q_OS_MAC
Chris@79:         infoButton->setFixedSize(QSize(int(fontHeight * 1.2), 
Chris@77:                                    int(fontHeight * 1.2)));
Chris@79:         infoButton->setStyleSheet("QToolButton { border: none; }");
Chris@77: #endif
Chris@77: 
Chris@84:         selectionLayout->addWidget(infoButton, selectionRow, infoColumn);
Chris@46: 
Chris@46:         ++selectionRow;
Chris@46: 
Chris@77:         QString moreTitleText = QObject::tr("<b>%1</b><br><i>%2</i>")
Chris@72:             .arg(info.title)
Chris@77:             .arg(info.maker);
Chris@77: 
Chris@79:         QString moreInfoText = info.description;
Chris@79:         
Chris@79:         if (info.page != "") {
Chris@79:             moreInfoText += QObject::tr("<br><a href=\"%1\">%2</a>")
Chris@79:                 .arg(info.page)
Chris@79:                 .arg(info.page);
Chris@79:         }
Chris@79: 
Chris@79:         moreInfoText += QObject::tr("<br><br>Library contains:<ul>");
Chris@73: 
Chris@73:         int n = 0;
Chris@73:         bool closed = false;
Chris@73:         for (auto title: info.pluginTitles) {
Chris@73:             if (n == 10 && info.pluginTitles.size() > 15) {
Chris@77:                 moreInfoText += QObject::tr("</ul>");
Chris@77:                 moreInfoText += QObject::tr("... and %n other plugins.<br><br>",
Chris@77:                                             "",
Chris@77:                                             info.pluginTitles.size() - n);
Chris@73:                 closed = true;
Chris@73:                 break;
Chris@73:             }
Chris@77:             moreInfoText += QObject::tr("<li>%1</li>").arg(title);
Chris@73:             ++n;
Chris@73:         }
Chris@73: 
Chris@73:         if (!closed) {
Chris@77:             moreInfoText += QObject::tr("</ul>");
Chris@73:         }
Chris@74: 
Chris@74:         if (info.licence != "") {
Chris@99:             moreInfoText += QObject::tr("Provided under the <a href=\"%1\">%2</a>.<br>")
Chris@99:                 .arg(getLicenceURL(info.licence))
Chris@77:                 .arg(info.licence);
Chris@74:         }
Chris@72:         
Chris@79:         QObject::connect(infoButton, &QAbstractButton::clicked,
Chris@72:                          [=]() {
Chris@74:                              QMessageBox mbox;
Chris@74:                              mbox.setIconPixmap(moreMap);
Chris@74:                              mbox.setWindowTitle(QObject::tr("Library contents"));
Chris@77:                              mbox.setText(moreTitleText);
Chris@77:                              mbox.setInformativeText(moreInfoText);
Chris@74:                              mbox.exec();
Chris@72:                          });
Chris@72:         
Chris@43:         checkBoxMap[info.fileName] = cb;
Chris@67:         libFileInfo[info.fileName] = info;
Chris@76:         statuses[info.fileName] = relativeStatus;
Chris@42:     }
Chris@42: 
Chris@79:     selectionLayout->addItem(new QSpacerItem(1, (fontHeight*2) / 3),
Chris@79:                              selectionRow, 0);
Chris@79:     ++selectionRow;
Chris@79: 
Chris@79:     selectionLayout->addWidget
Chris@79:         (new QLabel(QObject::tr("Installation will be to: %1").arg(targetDir)),
Chris@84:          selectionRow, titleColumn, 1, 3);
Chris@79:     ++selectionRow; 
Chris@79: 
Chris@47:     QObject::connect(checkAll, &QCheckBox::toggled,
Chris@72:                      [=](bool toCheck) {
Chris@47:                          for (auto p: checkBoxMap) {
Chris@47:                              p.second->setChecked(toCheck);
Chris@47:                          }
Chris@47:                      });
Chris@79: 
Chris@79:     mainLayout->addItem(new QSpacerItem(1, fontHeight), mainRow, 0);
Chris@79:     ++mainRow;
Chris@79:     
Chris@42:     auto bb = new QDialogButtonBox(QDialogButtonBox::Ok |
Chris@76:                                    QDialogButtonBox::Cancel |
Chris@99:                                    QDialogButtonBox::Reset |
Chris@99:                                    QDialogButtonBox::Help);
Chris@79:     bb->button(QDialogButtonBox::Ok)->setText(QObject::tr("Install"));
Chris@74:     mainLayout->addWidget(bb, mainRow, 0);
Chris@46:     ++mainRow;
Chris@47: 
Chris@74:     mainLayout->setRowStretch(0, 10);
Chris@74:     mainLayout->setColumnStretch(0, 10);
Chris@74:     selectionLayout->setColumnMinimumWidth(0, 50);
Chris@85: #ifdef Q_OS_MAC
Chris@85:     selectionLayout->setColumnMinimumWidth(3, 10);
Chris@85:     selectionLayout->setColumnMinimumWidth(5, 12);
Chris@85: #endif
Chris@74:     selectionLayout->setColumnStretch(1, 10);
Chris@47: 
Chris@76:     QObject::connect
Chris@76:         (bb, &QDialogButtonBox::clicked,
Chris@76:          [&](QAbstractButton *button) {
Chris@76: 
Chris@76:              auto role = bb->buttonRole(button);
Chris@76: 
Chris@76:              switch (role) {
Chris@76: 
Chris@76:              case QDialogButtonBox::AcceptRole: {
Chris@76:                  bool downgrade = false;
Chris@76:                  for (const auto &p: checkBoxMap) {
Chris@76:                      if (p.second->isChecked() &&
Chris@76:                          statuses.at(p.first) == RelativeStatus::Downgrade) {
Chris@76:                          downgrade = true;
Chris@76:                          break;
Chris@76:                      }
Chris@76:                  }
Chris@76:                  if (downgrade) {
Chris@76:                      if (QMessageBox::warning
Chris@76:                          (bb, QObject::tr("Downgrade?"),
Chris@76:                           QObject::tr("You have asked to downgrade one or more plugin libraries that are already installed.<br><br>Are you sure?"),
Chris@76:                           QMessageBox::Ok | QMessageBox::Cancel,
Chris@76:                           QMessageBox::Cancel) == QMessageBox::Ok) {
Chris@76:                          dialog.accept();
Chris@76:                      }
Chris@76:                  } else {
Chris@76:                      dialog.accept();
Chris@76:                  }
Chris@76:                  break;
Chris@76:              }
Chris@76: 
Chris@76:              case QDialogButtonBox::RejectRole:
Chris@76:                  dialog.reject();
Chris@76:                  break;
Chris@76: 
Chris@76:              case QDialogButtonBox::ResetRole:
Chris@76:                  for (const auto &p: checkBoxMap) {
Chris@76:                      p.second->setChecked(shouldCheck(statuses.at(p.first)));
Chris@76:                  }
Chris@76:                  break;
Chris@76: 
Chris@99:              case QDialogButtonBox::HelpRole: {
Chris@99:                  QMessageBox mbox;
Chris@99:                  mbox.setWindowTitle(QApplication::applicationName());
Chris@99:                  mbox.setText(QObject::tr("<b>Vamp Plugin Pack</b>"));
Chris@99:                  mbox.setInformativeText(getHelpText(libraries));
Chris@99:                  mbox.exec();
Chris@99:                  break;
Chris@99:              }
Chris@99:                  
Chris@76:              default:
Chris@76:                  SVCERR << "WARNING: Unexpected role " << role << endl;
Chris@99:                  break;
Chris@76:              }
Chris@76:          });
Chris@98: 
Chris@98:     if (QString(PACK_VERSION).contains("-pre") ||
Chris@98:         QString(PACK_VERSION).contains("-alpha") ||
Chris@98:         QString(PACK_VERSION).contains("-beta")) {
Chris@98:         QTimer::singleShot
Chris@98:             (500, [&]() {
Chris@98:                       QString url = "https://code.soundsoftware.ac.uk/projects/vamp-plugin-pack";
Chris@98:                       QMessageBox::information
Chris@98:                           (&dialog, QObject::tr("Test release"),
Chris@98:                            QObject::tr("<b>This is a test release of %1</b><p>Please send any feedback to the developers. See <a href=\"%2\">%3</a> for more information.</p>").arg(QApplication::applicationName()).arg(url).arg(url));
Chris@98:                   });
Chris@98:     }
Chris@98: 
Chris@70:     if (dialog.exec() != QDialog::Accepted) {
Chris@51:         SVCERR << "rejected" << endl;
Chris@70:         return {};
Chris@42:     }
Chris@42: 
Chris@75:     vector<LibraryInfo> approved;
Chris@42:     for (const auto &p: checkBoxMap) {
Chris@42:         if (p.second->isChecked()) {
Chris@75:             approved.push_back(libFileInfo[p.first]);
Chris@33:         }
Chris@42:     }
Chris@42:     
Chris@42:     return approved;
Chris@42: }
Chris@42: 
Chris@42: int main(int argc, char **argv)
Chris@42: {
Chris@93:     if (argc == 2 && (QString(argv[1]) == "--version" ||
Chris@93:                       QString(argv[1]) == "-v")) {
Chris@95:         cerr << PACK_VERSION << std::endl; // std:: needed here for MSVC for some reason
Chris@93:         exit(0);
Chris@93:     }
Chris@93:     
Chris@42:     QApplication app(argc, argv);
Chris@42: 
Chris@51:     QApplication::setOrganizationName("sonic-visualiser");
Chris@51:     QApplication::setOrganizationDomain("sonicvisualiser.org");
Chris@51:     QApplication::setApplicationName(QApplication::tr("Vamp Plugin Pack Installer"));
Chris@51: 
Chris@77:     QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
Chris@77: 
Chris@51: #ifdef Q_OS_WIN32
Chris@51:     QFont font(QApplication::font());
Chris@51:     QString preferredFamily = "Segoe UI";
Chris@51:     font.setFamily(preferredFamily);
Chris@51:     if (QFontInfo(font).family() == preferredFamily) {
Chris@51:         font.setPointSize(10);
Chris@51:         QApplication::setFont(font);
Chris@51:     }
Chris@77: #else
Chris@77: #ifdef Q_OS_MAC
Chris@77:     QFont font(QApplication::font());
Chris@77:     QString preferredFamily = "Lucida Grande";
Chris@77:     font.setFamily(preferredFamily);
Chris@77:     if (QFontInfo(font).family() == preferredFamily) {
Chris@85:         font.setPointSize(12);
Chris@77:         QApplication::setFont(font);
Chris@77:     }
Chris@77: #endif
Chris@51: #endif
Chris@51: 
Chris@42:     QString target = getDefaultInstallDirectory();
Chris@42:     if (target == "") {
Chris@42:         return 1;
Chris@42:     }
Chris@42: 
Chris@42:     QStringList libraries = getPluginLibraryList();
Chris@42: 
Chris@43:     auto rdfStore = loadLibrariesRdf();
Chris@43: 
Chris@43:     auto info = getLibraryInfo(*rdfStore, libraries);
Chris@43:     
Chris@75:     vector<LibraryInfo> toInstall =
Chris@75:         getUserApprovedPluginLibraries(info, target);
Chris@83:     
Chris@100:     if (toInstall.empty()) { // Cancelled, or nothing selected
Chris@100:         SVCERR << "No libraries selected for installation, nothing to do"
Chris@100:                << endl;
Chris@100:         return 0;
Chris@100:     }
Chris@100:     
Chris@81:     QProgressDialog progress(QObject::tr("Installing..."),
Chris@95:                              QObject::tr("Stop"), 0,
Chris@95:                              int(toInstall.size()) + 1);
Chris@81:     progress.setMinimumDuration(0);
Chris@99: 
Chris@81:     int pval = 0;
Chris@81:     bool complete = true;
Chris@42:     
Chris@42:     for (auto lib: toInstall) {
Chris@81:         progress.setValue(++pval);
Chris@81:         QThread::currentThread()->msleep(40);
Chris@81:         app.processEvents();
Chris@81:         if (progress.wasCanceled()) {
Chris@81:             complete = false;
Chris@81:             break;
Chris@81:         }
Chris@81:         QString error = installLibrary(lib, target);
Chris@81:         if (error != "") {
Chris@81:             complete = false;
Chris@81:             if (QMessageBox::critical
Chris@81:                 (&progress,
Chris@81:                  QObject::tr("Install failed"),
Chris@81:                  QObject::tr("Failed to install library \"%1\": %2")
Chris@81:                  .arg(lib.title)
Chris@81:                  .arg(error),
Chris@81:                  QMessageBox::Abort | QMessageBox::Ignore,
Chris@81:                  QMessageBox::Ignore) ==
Chris@81:                 QMessageBox::Abort) {
Chris@81:                 break;
Chris@81:             }
Chris@81:         }
Chris@81:     }
Chris@81: 
Chris@81:     progress.hide();
Chris@81: 
Chris@81:     if (complete) {
Chris@81:         QMessageBox::information
Chris@81:             (&progress,
Chris@81:              QObject::tr("Complete"),
Chris@81:              QObject::tr("Installation completed successfully"),
Chris@81:              QMessageBox::Ok,
Chris@81:              QMessageBox::Ok);
Chris@81:     } else {
Chris@81:         QMessageBox::information
Chris@81:             (&progress,
Chris@81:              QObject::tr("Incomplete"),
Chris@81:              QObject::tr("Installation was not complete. Exiting"),
Chris@81:              QMessageBox::Ok,
Chris@81:              QMessageBox::Ok);
Chris@33:     }
Chris@33:     
Chris@83:     return (complete ? 0 : 2);
Chris@32: }