Allow headless builds on Windows

Daemonizing is disabled because no direct equivalent exists in win32.

src/app/cmdoptions.cpp

@@ -37,7 +37,7 @@
 #include <QProcessEnvironment>
 #include <QTextStream>
 
-#ifdef Q_OS_WIN
+#if defined(Q_OS_WIN) && !defined(DISABLE_GUI)
 #include <QMessageBox>
 #endif
 
@@ -306,7 +306,7 @@ namespace
 
     constexpr const BoolOption SHOW_HELP_OPTION {"help", 'h'};
     constexpr const BoolOption SHOW_VERSION_OPTION {"version", 'v'};
-#ifdef DISABLE_GUI
+#if defined(DISABLE_GUI) && !defined(Q_OS_WIN)
     constexpr const BoolOption DAEMON_OPTION {"daemon", 'd'};
 #else
     constexpr const BoolOption NO_SPLASH_OPTION {"no-splash"};
@@ -332,12 +332,12 @@ QBtCommandLineParameters::QBtCommandLineParameters(const QProcessEnvironment &en
     , skipChecking(SKIP_HASH_CHECK_OPTION.value(env))
     , sequential(SEQUENTIAL_OPTION.value(env))
     , firstLastPiecePriority(FIRST_AND_LAST_OPTION.value(env))
-#ifndef Q_OS_WIN
+#if !defined(Q_OS_WIN) || defined(DISABLE_GUI)
     , showVersion(false)
 #endif
 #ifndef DISABLE_GUI
     , noSplash(NO_SPLASH_OPTION.value(env))
-#else
+#elif !defined(Q_OS_WIN)
     , shouldDaemonize(DAEMON_OPTION.value(env))
 #endif
     , webUiPort(WEBUI_PORT_OPTION.value(env, -1))
@@ -407,7 +407,7 @@ QBtCommandLineParameters parseCommandLine(const QStringList &args)
             if (arg == SHOW_HELP_OPTION) {
                 result.showHelp = true;
             }
-#ifndef Q_OS_WIN
+#if !defined(Q_OS_WIN) || defined(DISABLE_GUI)
             else if (arg == SHOW_VERSION_OPTION) {
                 result.showVersion = true;
             }
@@ -422,7 +422,7 @@ QBtCommandLineParameters parseCommandLine(const QStringList &args)
             else if (arg == NO_SPLASH_OPTION) {
                 result.noSplash = true;
             }
-#else
+#elif !defined(Q_OS_WIN)
             else if (arg == DAEMON_OPTION) {
                 result.shouldDaemonize = true;
             }
@@ -520,7 +520,7 @@ QString makeUsage(const QString &prgName)
     stream << indentation << prgName << QLatin1String(" [options] [(<filename> | <url>)...]") << '\n';
 
     stream << QObject::tr("Options:") << '\n';
-#ifndef Q_OS_WIN
+#if !defined(Q_OS_WIN) || defined(DISABLE_GUI)
     stream << SHOW_VERSION_OPTION.usage() << wrapText(QObject::tr("Display program version and exit")) << '\n';
 #endif
     stream << SHOW_HELP_OPTION.usage() << wrapText(QObject::tr("Display this help message and exit")) << '\n';
@@ -529,7 +529,7 @@ QString makeUsage(const QString &prgName)
            << '\n';
 #ifndef DISABLE_GUI
     stream << NO_SPLASH_OPTION.usage() << wrapText(QObject::tr("Disable splash screen")) << '\n';
-#else
+#elif !defined(Q_OS_WIN)
     stream << DAEMON_OPTION.usage() << wrapText(QObject::tr("Run in daemon-mode (background)")) << '\n';
 #endif
     //: Use appropriate short form or abbreviation of "directory"
@@ -575,12 +575,12 @@ QString makeUsage(const QString &prgName)
 
 void displayUsage(const QString &prgName)
 {
-#ifndef Q_OS_WIN
-    printf("%s\n", qUtf8Printable(makeUsage(prgName)));
-#else
+#if defined(Q_OS_WIN) && !defined(DISABLE_GUI)
     QMessageBox msgBox(QMessageBox::Information, QObject::tr("Help"), makeUsage(prgName), QMessageBox::Ok);
     msgBox.show(); // Need to be shown or to moveToCenter does not work
     msgBox.move(Utils::Misc::screenCenter(&msgBox));
     msgBox.exec();
+#else
+    printf("%s\n", qUtf8Printable(makeUsage(prgName)));
 #endif
 }

src/app/cmdoptions.h

@@ -43,12 +43,12 @@ class QProcessEnvironment;
 struct QBtCommandLineParameters
 {
     bool showHelp, relativeFastresumePaths, portableMode, skipChecking, sequential, firstLastPiecePriority;
-#ifndef Q_OS_WIN
+#if !defined(Q_OS_WIN) || defined(DISABLE_GUI)
     bool showVersion;
 #endif
 #ifndef DISABLE_GUI
     bool noSplash;
-#else
+#elif !defined(Q_OS_WIN)
     bool shouldDaemonize;
 #endif
     int webUiPort;

src/app/main.cpp

@@ -34,6 +34,8 @@
 
 #if !defined Q_OS_WIN && !defined Q_OS_HAIKU
 #include <unistd.h>
+#elif defined Q_OS_WIN && defined DISABLE_GUI
+#include <io.h>
 #endif
 
 #include <QDebug>
@@ -65,7 +67,9 @@ Q_IMPORT_PLUGIN(QICOPlugin)
 #include "stacktrace.h"
 #else
 #include "stacktrace_win.h"
+#ifndef DISABLE_GUI
 #include "stacktracedialog.h"
+#endif // DISABLE_GUI
 #endif // Q_OS_UNIX
 #endif //STACKTRACE
 
@@ -96,7 +100,7 @@ const char *const sysSigName[] = {
 #endif
 };
 
-#if !defined Q_OS_WIN && !defined Q_OS_HAIKU
+#if !(defined Q_OS_WIN && !defined DISABLE_GUI) && !defined Q_OS_HAIKU
 void reportToUser(const char *str);
 #endif
 
@@ -126,7 +130,7 @@ int main(int argc, char *argv[])
                                                         "--random-parameter is an unknown command line parameter.")
                                                         .arg(params.unknownParameter));
         }
-#ifndef Q_OS_WIN
+#if !defined(Q_OS_WIN) || defined(DISABLE_GUI)
         if (params.showVersion) {
             if (isOneArg) {
                 displayVersion();
@@ -152,6 +156,12 @@ int main(int argc, char *argv[])
 #ifndef DISABLE_GUI
         if (!userAgreesWithLegalNotice())
             return EXIT_SUCCESS;
+
+#elif defined(Q_OS_WIN)
+        if (_isatty(_fileno(stdin))
+            && _isatty(_fileno(stdout))
+            && !userAgreesWithLegalNotice())
+            return EXIT_SUCCESS;
 #else
         if (!params.shouldDaemonize
             && isatty(fileno(stdin))
@@ -162,7 +172,7 @@ int main(int argc, char *argv[])
 
         // Check if qBittorrent is already running for this user
         if (app->isRunning()) {
-#ifdef DISABLE_GUI
+#if defined(DISABLE_GUI) && !defined(Q_OS_WIN)
             if (params.shouldDaemonize) {
                 throw CommandLineParameterError(QObject::tr("You cannot use %1: qBittorrent is already running for this user.")
                                      .arg(QLatin1String("-d (or --daemon)")));
@@ -190,7 +200,7 @@ int main(int argc, char *argv[])
         // 3. https://bugreports.qt.io/browse/QTBUG-46015
 
         qputenv("QT_BEARER_POLL_TIMEOUT", QByteArray::number(-1));
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)) && !defined(DISABLE_GUI)
         // this is the default in Qt6
         app->setAttribute(Qt::AA_DisableWindowContextHelpButton);
 #endif
@@ -210,12 +220,15 @@ int main(int argc, char *argv[])
 
 #ifndef DISABLE_GUI
         if (!upgrade()) return EXIT_FAILURE;
+#elif defined(Q_OS_WIN)
+        if (!upgrade(_isatty(_fileno(stdin))
+                     && _isatty(_fileno(stdout)))) return EXIT_FAILURE;
 #else
         if (!upgrade(!params.shouldDaemonize
                      && isatty(fileno(stdin))
                      && isatty(fileno(stdout)))) return EXIT_FAILURE;
 #endif
-#ifdef DISABLE_GUI
+#if defined(DISABLE_GUI) && !defined(Q_OS_WIN)
         if (params.shouldDaemonize) {
             app.reset(); // Destroy current application
             if (daemon(1, 0) == 0) {
@@ -230,7 +243,7 @@ int main(int argc, char *argv[])
                 return EXIT_FAILURE;
             }
         }
-#else
+#elif !defined(DISABLE_GUI)
         if (!(params.noSplash || Preferences::instance()->isSplashScreenDisabled()))
             showSplashScreen();
 #endif
@@ -250,12 +263,17 @@ int main(int argc, char *argv[])
     }
 }
 
-#if !defined Q_OS_WIN && !defined Q_OS_HAIKU
+#if !(defined Q_OS_WIN && !defined DISABLE_GUI) && !defined Q_OS_HAIKU
 void reportToUser(const char *str)
 {
     const size_t strLen = strlen(str);
+#ifndef Q_OS_WIN
     if (write(STDERR_FILENO, str, strLen) < static_cast<ssize_t>(strLen)) {
         const auto dummy = write(STDOUT_FILENO, str, strLen);
+#else
+    if (_write(STDERR_FILENO, str, strLen) < static_cast<ssize_t>(strLen)) {
+        const auto dummy = _write(STDOUT_FILENO, str, strLen);
+#endif
         Q_UNUSED(dummy);
     }
 }
@@ -263,7 +281,7 @@ void reportToUser(const char *str)
 
 void sigNormalHandler(int signum)
 {
-#if !defined Q_OS_WIN && !defined Q_OS_HAIKU
+#if !(defined Q_OS_WIN && !defined DISABLE_GUI) && !defined Q_OS_HAIKU
     const char msg1[] = "Catching signal: ";
     const char msg2[] = "\nExiting cleanly\n";
     reportToUser(msg1);
@@ -278,7 +296,7 @@ void sigNormalHandler(int signum)
 void sigAbnormalHandler(int signum)
 {
     const char *sigName = sysSigName[signum];
-#if !defined Q_OS_WIN && !defined Q_OS_HAIKU
+#if !(defined Q_OS_WIN && !defined DISABLE_GUI) && !defined Q_OS_HAIKU
     const char msg[] = "\n\n*************************************************************\n"
         "Please file a bug report at http://bug.qbittorrent.org and provide the following information:\n\n"
         "qBittorrent version: " QBT_VERSION "\n\n"
@@ -289,7 +307,7 @@ void sigAbnormalHandler(int signum)
     print_stacktrace();  // unsafe
 #endif
 
-#if defined Q_OS_WIN
+#if defined Q_OS_WIN && !defined DISABLE_GUI
     StacktraceDialog dlg;  // unsafe
     dlg.setStacktraceString(QLatin1String(sigName), straceWin::getBacktrace());
     dlg.exec();
@@ -324,7 +342,7 @@ void displayVersion()
 void displayBadArgMessage(const QString &message)
 {
     const QString help = QObject::tr("Run application with -h option to read about command line parameters.");
-#ifdef Q_OS_WIN
+#if defined(Q_OS_WIN) && !defined(DISABLE_GUI)
     QMessageBox msgBox(QMessageBox::Critical, QObject::tr("Bad command line"),
                        message + QLatin1Char('\n') + help, QMessageBox::Ok);
     msgBox.show(); // Need to be shown or to moveToCenter does not work