ProjectExplorer: Retrieve output from Journald more reliably

Retrieve output from Journald more reliably.

Change-Id: Ic733698e7ed3717841a5a902c4f1e9e94d952885
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
Reviewed-by: hjk <hjk@qt.io>

src/libs/utils/outputformat.h

@@ -31,6 +31,7 @@ enum OutputFormat
 {
     NormalMessageFormat,
     ErrorMessageFormat,
+    LogMessageFormat,
     DebugFormat,
     StdOutFormat,
     StdErrFormat,

src/libs/utils/outputformatter.cpp

@@ -145,6 +145,10 @@ void OutputFormatter::initFormats()
     d->formats[ErrorMessageFormat].setFont(boldFont, QTextCharFormat::FontPropertiesSpecifiedOnly);
     d->formats[ErrorMessageFormat].setForeground(theme->color(Theme::OutputPanes_ErrorMessageTextColor));
 
+    // LogMessageFormat
+    d->formats[LogMessageFormat].setFont(d->font, QTextCharFormat::FontPropertiesSpecifiedOnly);
+    d->formats[LogMessageFormat].setForeground(theme->color(Theme::OutputPanes_WarningMessageTextColor));
+
     // StdOutFormat
     d->formats[StdOutFormat].setFont(d->font, QTextCharFormat::FontPropertiesSpecifiedOnly);
     d->formats[StdOutFormat].setForeground(theme->color(Theme::OutputPanes_StdOutTextColor));

src/plugins/projectexplorer/applicationlauncher.cpp

@@ -27,9 +27,6 @@
 #ifdef Q_OS_WIN
 #include "windebuginterface.h"
 #endif
-#ifdef WITH_JOURNALD
-#include "journaldwatcher.h"
-#endif
 
 #include <coreplugin/icore.h>
 
@@ -72,12 +69,12 @@ struct ApplicationLauncherPrivate {
     Utils::QtcProcess m_guiProcess;
     Utils::ConsoleProcess m_consoleProcess;
     ApplicationLauncher::Mode m_currentMode;
+    // Keep track whether we need to emit a finished signal
+    bool m_processRunning = false;
 
     QTextCodec *m_outputCodec;
     QTextCodec::ConverterState m_outputCodecState;
     QTextCodec::ConverterState m_errorCodecState;
-    // Keep track whether we need to emit a finished signal
-    bool m_processRunning = false;
 
     qint64 m_listeningPid = 0;
 };
@@ -126,10 +123,6 @@ ApplicationLauncher::ApplicationLauncher(QObject *parent) : QObject(parent),
     connect(WinDebugInterface::instance(), &WinDebugInterface::debugOutput,
             this, &ApplicationLauncher::checkDebugOutput, Qt::BlockingQueuedConnection);
 #endif
-#ifdef WITH_JOURNALD
-    connect(JournaldWatcher::instance(), &JournaldWatcher::journaldOutput,
-            this, &ApplicationLauncher::checkDebugOutput);
-#endif
 }
 
 ApplicationLauncher::~ApplicationLauncher()

src/plugins/projectexplorer/journaldwatcher.cpp

@@ -163,7 +163,7 @@ bool JournaldWatcher::subscribe(QObject *subscriber, const Subscription &subscri
                              [subscriber](const JournaldWatcherPrivate::SubscriberInformation &info) {
                                  return info.subscriber == subscriber;
                              });
-    QTC_ASSERT(pos >= 0, return false);
+    QTC_ASSERT(pos < 0, return false);
 
     d->m_subscriptions.append(JournaldWatcherPrivate::SubscriberInformation(subscriber, subscription));
     connect(subscriber, &QObject::destroyed, m_instance, &JournaldWatcher::unsubscribe);
@@ -214,20 +214,6 @@ void JournaldWatcher::handleEntry()
 
         foreach (const JournaldWatcherPrivate::SubscriberInformation &info, d->m_subscriptions)
             info.subscription(logEntry);
-
-        if (logEntry.value(QByteArrayLiteral("_MACHINE_ID")) != machineId())
-            continue;
-
-        const QByteArray pid = logEntry.value(QByteArrayLiteral("_PID"));
-        if (pid.isEmpty())
-            continue;
-
-        quint64 pidNum = QString::fromLatin1(pid).toInt();
-
-        QString message = QString::fromUtf8(logEntry.value(QByteArrayLiteral("MESSAGE")));
-        message.append(QLatin1Char('\n')); // Add newline.
-
-        emit journaldOutput(pidNum, message);
     }
 }
 

src/plugins/projectexplorer/journaldwatcher.h

@@ -41,7 +41,7 @@ class JournaldWatcher : public QObject
 
 public:
     typedef QMap<QByteArray, QByteArray> LogEntry;
-    typedef std::function<void(LogEntry)> Subscription;
+    typedef std::function<void(const LogEntry&)> Subscription;
 
     ~JournaldWatcher() override;
 
@@ -52,9 +52,6 @@ public:
     static bool subscribe(QObject *subscriber, const Subscription &subscription);
     static void unsubscribe(QObject *subscriber);
 
-signals:
-    void journaldOutput(quint64 pid, const QString &message);
-
 private:
     JournaldWatcher();
 

src/plugins/projectexplorer/runconfiguration.cpp

@@ -48,6 +48,10 @@
 #include <ApplicationServices/ApplicationServices.h>
 #endif
 
+#if defined (WITH_JOURNALD)
+#include "journaldwatcher.h"
+#endif
+
 using namespace Utils;
 
 namespace ProjectExplorer {
@@ -541,10 +545,31 @@ public:
 
 RunControl::RunControl(RunConfiguration *runConfiguration, Core::Id mode) :
     d(new Internal::RunControlPrivate(runConfiguration, mode))
-{ }
+{
+#ifdef WITH_JOURNALD
+    JournaldWatcher::instance()->subscribe(this, [this](const JournaldWatcher::LogEntry &entry) {
+        if (entry.value("_MACHINE_ID") != JournaldWatcher::instance()->machineId())
+            return;
+
+        const QByteArray pid = entry.value("_PID");
+        if (pid.isEmpty())
+            return;
+
+        const qint64 pidNum = static_cast<qint64>(QString::fromLatin1(pid).toInt());
+        if (pidNum != d->applicationProcessHandle.pid())
+            return;
+
+        const QString message = QString::fromUtf8(entry.value("MESSAGE")) + "\n";
+        appendMessageRequested(this, message, Utils::OutputFormat::LogMessageFormat);
+    });
+#endif
+}
 
 RunControl::~RunControl()
 {
+#ifdef WITH_JOURNALD
+    JournaldWatcher::instance()->unsubscribe(this);
+#endif
     delete d;
 }