CMake: Tweak detecting of right project part

Don't consider targets that end in _unittest or _automoc. Also don't
read CMakeDirectoryInformation.cmake as that doesn't work with
add_subdirectory.

Change-Id: If06af60e1637e94cccd32d09fc26c6b87488671b
Task-number: QTCREATORBUG-12183
Reviewed-by: Tobias Hunger <tobias.hunger@theqtcompany.com>

src/plugins/cmakeprojectmanager/cmakeproject.cpp

@@ -1029,7 +1029,9 @@ void CMakeCbpParser::parseBuildTarget()
     while (!atEnd()) {
         readNext();
         if (isEndElement()) {
-            if (!m_buildTarget.title.endsWith(QLatin1String("/fast")))
+            if (!m_buildTarget.title.endsWith(QLatin1String("/fast"))
+                    && !m_buildTarget.title.endsWith(QLatin1String("_automoc"))
+                    && !m_buildTarget.title.endsWith(QLatin1String("_unittest")))
                 m_buildTargets.append(m_buildTarget);
             return;
         } else if (name() == QLatin1String("Compiler")) {
@@ -1054,28 +1056,10 @@ void CMakeCbpParser::parseBuildTargetOption()
             m_buildTarget.targetType = TargetType(value.toInt());
     } else if (attributes().hasAttribute(QLatin1String("working_dir"))) {
         m_buildTarget.workingDirectory = attributes().value(QLatin1String("working_dir")).toString();
-
-        QFile cmakeSourceInfoFile(m_buildTarget.workingDirectory
-                                  + QStringLiteral("/CMakeFiles/CMakeDirectoryInformation.cmake"));
-        if (cmakeSourceInfoFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
-            QTextStream stream(&cmakeSourceInfoFile);
-            const QLatin1String searchSource("SET(CMAKE_RELATIVE_PATH_TOP_SOURCE \"");
-            while (!stream.atEnd()) {
-                const QString lineTopSource = stream.readLine().trimmed();
-                if (lineTopSource.startsWith(searchSource)) {
-                    m_buildTarget.sourceDirectory = lineTopSource.mid(searchSource.size());
-                    m_buildTarget.sourceDirectory.chop(2); // cut off ")
-                    break;
-                }
-            }
-        }
-
-        if (m_buildTarget.sourceDirectory.isEmpty()) {
-            QDir dir(m_buildDirectory);
-            const QString relative = dir.relativeFilePath(m_buildTarget.workingDirectory);
-            m_buildTarget.sourceDirectory
-                    = FileName::fromString(m_sourceDirectory).appendPath(relative).toString();
-        }
+        QDir dir(m_buildDirectory);
+        const QString relative = dir.relativeFilePath(m_buildTarget.workingDirectory);
+        m_buildTarget.sourceDirectory
+                = FileName::fromString(m_sourceDirectory).appendPath(relative).toString();
     }
     while (!atEnd()) {
         readNext();