winrtrunner: Do not accept fully wildcarded logging rules from environment

When an auto test fails in CI, it does another run using
QT_LOGGING_RULES=*=true. For winrt builds this rule would enable extended
logging for winrtrunner and the output would be flooded with winrtrunner
specific information.

Instead of confusing the users, we disregard the logging rules in
winrtrunner if they do not specifically enable the application's logging
so that CI runs will only show information that might be interesting to
the user.

Change-Id: If51a666315a2e33b83d6a7613a65ab4a152eddc4
Reviewed-by: Andre de la Rocha <andre.rocha@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

1 files changed, 18 insertions, 2 deletions

diff --git a/src/winrtrunner/main.cpp b/src/winrtrunner/main.cpp
index 72dd763c8..bf4e8fabf 100644
--- a/src/winrtrunner/main.cpp
+++ b/src/winrtrunner/main.cpp
@@ -40,6 +40,7 @@
 #include <QtCore/QCommandLineParser>
 #include <QtCore/QCoreApplication>
 #include <QtCore/QDir>
+#include <QtCore/QRegExp>
 #include <QtCore/QStringList>
 #include <QtCore/QMap>
 #include <QtCore/QLoggingCategory>
@@ -52,6 +53,23 @@ QT_USE_NAMESPACE
 
 int main(int argc, char *argv[])
 {
+    // If logging rules are set via env variable, we pass these to the application we are running.
+    // winrtrunner behaves different from other applications in the regard that its logging rules
+    // have to be enabled explicitly. Setting "*=true" will not enable extended logging. Reason is
+    // CI setting "*=true" if an auto test fails and additional winrtrunner output might just
+    // confuse users.
+    const QByteArray loggingRules = qgetenv("QT_LOGGING_RULES");
+    const QList<QByteArray> rules = loggingRules.split(';');
+    QRegExp runnerExp(QLatin1String("^qt\\.winrtrunner.*\\s*=\\s*true\\s*$"));
+    bool runnerRuleFound = false;
+    for (const QByteArray &rule : rules) {
+        if (runnerExp.indexIn(QLatin1String(rule)) != -1) {
+            runnerRuleFound = true;
+            break;
+        }
+    }
+    if (!runnerRuleFound)
+        qunsetenv("QT_LOGGING_RULES");
     QCoreApplication a(argc, argv);
     QCommandLineParser parser;
     parser.setApplicationDescription(QLatin1String("winrtrunner installs, runs, and collects test "
@@ -282,8 +300,6 @@ int main(int argc, char *argv[])
         return ignoreErrors ? 0 : 3;
     }
 
-    // If logging rules are set via env variable, we pass these to the application we are running
-    const QByteArray loggingRules = qgetenv("QT_LOGGING_RULES");
     if (!loggingRules.isNull() && !runner.setLoggingRules(loggingRules)) {
         qCDebug(lcWinRtRunner) << "Could not set logging rules, exiting with code 3.";
         return ignoreErrors ? 0 : 3;