Additional QNX compatibility checks

cut, df and tail are required for the disk space deploy check.

The QNX code creates PID files in /var/run.

rm is used by the /var/run device test. The QNX Qt Creator code
should be using it to to remove the .pid files that it creates.
Currently, it does not do this.  That'll be a separate fix.

Change-Id: Ie6bbe480b10ad5ac6396e882c993b90c61dcfe70
Reviewed-by: Sami Nurmenniemi <sami.nurmenniemi@qt.io>
Reviewed-by: hjk <hjk@qt.io>

src/plugins/qnx/qnxdevicetester.cpp

@@ -54,6 +54,8 @@ QnxDeviceTester::QnxDeviceTester(QObject *parent)
 
     m_commandsToTest << QLatin1String("awk")
                      << QLatin1String("cat")
+                     << QLatin1String("cut")
+                     << QLatin1String("df")
                      << QLatin1String("grep")
                      << QLatin1String("kill")
                      << QLatin1String("netstat")
@@ -61,8 +63,10 @@ QnxDeviceTester::QnxDeviceTester(QObject *parent)
                      << QLatin1String("printf")
                      << QLatin1String("ps")
                      << QLatin1String("read")
+                     << QLatin1String("rm")
                      << QLatin1String("sed")
                      << QLatin1String("sleep")
+                     << QLatin1String("tail")
                      << QLatin1String("uname");
 }
 
@@ -86,6 +90,7 @@ void QnxDeviceTester::stopTest()
     case GenericTest:
         m_genericTester->stopTest();
         break;
+    case VarRunTest:
     case CommandsTest:
         m_processRunner->cancel();
         break;
@@ -105,6 +110,32 @@ void QnxDeviceTester::handleGenericTestFinished(TestResult result)
         return;
     }
 
+    m_state = VarRunTest;
+    emit progressMessage(tr("Checking that files can be created in /var/run..."));
+    m_processRunner->run(QStringLiteral("rm %1 > /dev/null 2>&1; echo ABC > %1 && rm %1")
+                             .arg("/var/run/qtc_xxxx.pid")
+                             .toLatin1(),
+                         m_deviceConfiguration->sshParameters());
+}
+
+void QnxDeviceTester::handleVarRunProcessFinished(const QString &error)
+{
+    QTC_ASSERT(m_state == VarRunTest, return);
+
+    if (error.isEmpty()) {
+        if (m_processRunner->processExitCode() == 0) {
+            emit progressMessage(tr("Files can be created in /var/run.") + QLatin1Char('\n'));
+        } else {
+            emit errorMessage(tr("Files cannot be created in /var/run.") + QLatin1Char('\n'));
+            m_result = TestFailure;
+        }
+    } else {
+        emit errorMessage(tr("An error occurred checking that"
+                             " files can be created in /var/run.")
+                          + QLatin1Char('\n'));
+        m_result = TestFailure;
+    }
+
     m_state = CommandsTest;
 
     QnxDevice::ConstPtr qnxDevice = m_deviceConfiguration.dynamicCast<const QnxDevice>();
@@ -115,6 +146,11 @@ void QnxDeviceTester::handleGenericTestFinished(TestResult result)
 
 void QnxDeviceTester::handleProcessFinished(const QString &error)
 {
+    if (m_state == VarRunTest) {
+        handleVarRunProcessFinished(error);
+        return;
+    }
+
     QTC_ASSERT(m_state == CommandsTest, return);
 
     const QString command = m_commandsToTest[m_currentCommandIndex];

src/plugins/qnx/qnxdevicetester.h

@@ -53,6 +53,7 @@ private:
     enum State {
         Inactive,
         GenericTest,
+        VarRunTest,
         CommandsTest
     };
 
@@ -61,6 +62,8 @@ private:
 
     QStringList versionSpecificCommandsToTest(int versionNumber) const;
 
+    void handleVarRunProcessFinished(const QString &error);
+
     RemoteLinux::GenericLinuxDeviceTester *m_genericTester;
     ProjectExplorer::IDevice::ConstPtr m_deviceConfiguration;
     ProjectExplorer::DeviceTester::TestResult m_result;