QmlProjectManager: Cleanup cmake generator

- Consider qmlModules file like any other qml module
- Use ${CMAKE_PROJECT_NAME} when possible
- Break up big functions into smaller ones
- Reorder arguments for tpl files

Change-Id: Ie73cca8596b22adf67eba1019610a00c34976421
Reviewed-by: Qt CI Patch Build Bot <ci_patchbuild_bot@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

4 files changed, 167 insertions, 146 deletions

diff --git a/src/plugins/qmlprojectmanager/cmakegen/cmakegenerator.cpp b/src/plugins/qmlprojectmanager/cmakegen/cmakegenerator.cpp
index 55bcea6a87..2d78026125 100644
--- a/src/plugins/qmlprojectmanager/cmakegen/cmakegenerator.cpp
+++ b/src/plugins/qmlprojectmanager/cmakegen/cmakegenerator.cpp
@@ -19,19 +19,16 @@ namespace GenerateCmake {
 const char TEMPLATE_CMAKELISTS_ROOT[] = ":/boilerplatetemplates/gencmakeroot.tpl";
 const char TEMPLATE_CMAKELISTS_MODULE[] = ":/boilerplatetemplates/gencmakemodule.tpl";
 
-const char TEMPLATE_QMLMODULES[] = ":/boilerplatetemplates/qmlprojectmodules.tpl";
 const char TEMPLATE_SOURCE_MAIN[] = ":/boilerplatetemplates/qmlprojectmaincpp.tpl";
 const char TEMPLATE_HEADER_IMPORT_COMPS[] = ":/boilerplatetemplates/gencmakeheadercomponents.tpl";
 const char TEMPLATE_HEADER_IMPORT_PLUGINS[] = ":/boilerplatetemplates/qmlprojectmaincppheader.tpl";
 const char TEMPLATE_HEADER_ENVIRONMENT[] = ":/boilerplatetemplates/qmlprojectenvheader.tpl";
 
-const char DO_NOT_EDIT_FILE_COMMENT[] =
-"### This file is automatically generated by Qt Design Studio.\n"
-"### Do not change\n\n";
+const char DO_NOT_EDIT_FILE_COMMENT[]
+    = "### This file is automatically generated by Qt Design Studio.\n"
+      "### Do not change\n\n";
 
-const char ADD_SUBDIR[] = "add_subdirectory(%1)\n";
-
-const char BIG_RESOURCE_TEMPLATE[] = R"(
+const char TEMPLATE_BIG_RESOURCES[] = R"(
 qt6_add_resources(%1 %2
     BIG_RESOURCES
     PREFIX "%3"
@@ -39,6 +36,11 @@ qt6_add_resources(%1 %2
     FILES %4
 ))";
 
+const char TEMPLATE_LINK_LIBRARIES[] = R"(
+target_link_libraries(${CMAKE_PROJECT_NAME} PRIVATE
+%3
+))";
+
 CMakeGenerator::CMakeGenerator(QmlBuildSystem *bs, QObject *parent)
     : QObject(parent)
     , m_root(std::make_shared<Node>())
@@ -59,7 +61,9 @@ void CMakeGenerator::initialize(QmlProject *project)
     m_moduleNames.clear();
 
     m_root = std::make_shared<Node>();
-    m_root->name = QString("Root");
+    m_root->module = true;
+    m_root->uri = QString("Main");
+    m_root->name = QString("Main");
     m_root->dir = project->rootProjectDirectory();
 
     m_projectName = project->displayName();
@@ -102,66 +106,48 @@ void CMakeGenerator::update(const QSet<QString> &added, const QSet<QString> &rem
         createModuleCMakeFile(module);
 }
 
-std::vector<Utils::FilePath> CMakeGenerator::qmlFiles(const NodePtr &node) const
+std::vector<Utils::FilePath> CMakeGenerator::files(const NodePtr &node,
+                                                   const FileGetter &getter) const
 {
-    std::vector<Utils::FilePath> out = node->files;
-    for (const NodePtr &child : node->subdirs) {
+    std::vector<Utils::FilePath> out = getter(node);
+    for (const CMakeGenerator::NodePtr &child : node->subdirs) {
         if (child->module)
             continue;
 
-        auto childFiles = qmlFiles(child);
+        auto childFiles = files(child, getter);
         out.insert(out.end(), childFiles.begin(), childFiles.end());
     }
     return out;
 }
 
-std::vector<Utils::FilePath> CMakeGenerator::singletons(const NodePtr &node) const
+std::vector<Utils::FilePath> CMakeGenerator::qmlFiles(const NodePtr &node) const
 {
-    std::vector<Utils::FilePath> out = node->singletons;
-    for (const NodePtr &child : node->subdirs) {
-        if (child->module)
-            continue;
+    return files(node, [](const NodePtr &n) { return n->files; });
+}
 
-        auto childFiles = singletons(child);
-        out.insert(out.end(), childFiles.begin(), childFiles.end());
-    }
-    return out;
+std::vector<Utils::FilePath> CMakeGenerator::singletons(const NodePtr &node) const
+{
+    return files(node, [](const NodePtr &n) { return n->singletons; });
 }
 
 std::vector<Utils::FilePath> CMakeGenerator::resources(const NodePtr &node) const
 {
-    std::vector<Utils::FilePath> out = node->resources;
-    for (const NodePtr &child : node->subdirs) {
-        if (child->module)
-            continue;
-
-        auto childFiles = resources(child);
-        out.insert(out.end(), childFiles.begin(), childFiles.end());
-    }
-    return out;
+    return files(node, [](const NodePtr &n) { return n->resources; });
 }
 
 std::vector<Utils::FilePath> CMakeGenerator::sources(const NodePtr &node) const
 {
-    std::vector<Utils::FilePath> out = node->sources;
-    for (const NodePtr &child : node->subdirs) {
-        if (child->module)
-            continue;
-
-        auto childFiles = sources(child);
-        out.insert(out.end(), childFiles.begin(), childFiles.end());
-    }
-    return out;
+    return files(node, [](const NodePtr &n) { return n->sources; });
 }
 
 void CMakeGenerator::createCMakeFiles(const NodePtr &node) const
 {
-    if (node->name == "Root") {
+    if (isRootNode(node))
         createMainCMakeFile(node);
-        createQmlModuleFile(node);
-    } else if (node->module || hasChildModule(node)) {
+
+    if (node->module || hasChildModule(node))
         createModuleCMakeFile(node);
-    }
+
     for (const NodePtr &n : node->subdirs)
         createCMakeFiles(n);
 }
@@ -183,103 +169,43 @@ void CMakeGenerator::createMainCMakeFile(const NodePtr &node) const
     writeFile(file, fileContent);
 }
 
-void CMakeGenerator::createQmlModuleFile(const NodePtr &node) const
-{
-    const QString appName = m_projectName + "App";
-
-    QString subdirIncludes;
-    for (const NodePtr &n : node->subdirs)
-        subdirIncludes.append(QString(ADD_SUBDIR).arg(n->name));
-
-    QString modulesAsPlugins;
-    for (const QString &moduleName : m_moduleNames)
-        modulesAsPlugins.append("    " + moduleName + "plugin\n");
-
-    const QString fileTemplate = readTemplate(TEMPLATE_QMLMODULES);
-    const QString fileContent = fileTemplate.arg(appName, subdirIncludes, modulesAsPlugins);
-
-    const Utils::FilePath file = node->dir.pathAppended("qmlModules");
-    writeFile(file, fileContent);
-}
-
 void CMakeGenerator::createModuleCMakeFile(const NodePtr &node) const
 {
-    QString subDirContent;
-    for (const NodePtr &n : node->subdirs) {
-        if (n->module || hasChildModule(n))
-            subDirContent.append(QString(ADD_SUBDIR).arg(n->dir.fileName()));
-    }
+    Utils::FilePath writeToFile = node->dir.pathAppended("CMakeLists.txt");
 
-    QString content;
     if (!node->module && hasChildModule(node)) {
-        content.append(DO_NOT_EDIT_FILE_COMMENT);
-        content.append(subDirContent);
-        Utils::FilePath file = node->dir.pathAppended("CMakeLists.txt");
-        writeFile(file, content);
+        QString content(DO_NOT_EDIT_FILE_COMMENT);
+        content.append(makeSubdirectoriesBlock(node));
+        writeFile(writeToFile, content);
         return;
     }
 
-    auto makeRelative = [](const Utils::FilePath &base,
-                           const Utils::FilePath &converted) -> QString {
-        return "\"" + Utils::FilePath::calcRelativePath(converted.toString(), base.toString()) + "\"";
-    };
-
-    QString uri = node->uri;
-    if (uri.isEmpty())
-        uri = node->dir.baseName();
-
-    const QString setProperties(
-        "set_source_files_properties(%1\n    PROPERTIES\n        %2 %3\n)\n\n");
-
-    for (const Utils::FilePath &path : node->singletons) {
-        content.append(setProperties.arg(path.fileName()).arg("QT_QML_SINGLETON_TYPE").arg("true"));
-    }
-
-    if (!subDirContent.isEmpty())
-        content.append(subDirContent);
-
-    QString qmlFileContent;
-    for (const Utils::FilePath &path : qmlFiles(node)) {
-        qmlFileContent.append(QString("        %1\n").arg(makeRelative(node->dir, path)));
-    }
+    QString templatePrefix;
+    templatePrefix.append(makeSubdirectoriesBlock(node));
+    templatePrefix.append(makeSingletonBlock(node));
 
+    auto [resources, bigResources] = makeResourcesBlocks(node);
     QString moduleContent;
-    if (!qmlFileContent.isEmpty())
-        moduleContent.append(QString("    QML_FILES\n%1").arg(qmlFileContent));
+    moduleContent.append(makeQmlFilesBlock(node));
+    moduleContent.append(resources);
 
-    std::vector<QString> bigResources;
-    QString resourceFiles;
-    for (const Utils::FilePath &path : resources(node)) {
-        if (path.fileSize() > 5000000) {
-            bigResources.push_back(makeRelative(node->dir, path));
-            continue;
-        }
-        resourceFiles.append(QString("        %1\n").arg(makeRelative(node->dir, path)));
-    }
+    QString templatePostfix;
+    templatePostfix.append(bigResources);
 
-    if (!resourceFiles.isEmpty())
-        moduleContent.append(QString("    RESOURCES\n%1").arg(resourceFiles));
+    if (isRootNode(node)) {
+        writeToFile = node->dir.pathAppended("qmlModules");
+        QString pluginNames;
+        for (const QString &moduleName : m_moduleNames)
+            pluginNames.append("    " + moduleName + "plugin\n");
 
-    QString bigResourceContent;
-    if (!bigResources.empty()) {
-        QString resourceContent;
-        for (const QString &res : bigResources)
-            resourceContent.append(QString("\n    %1").arg(res));
-
-        const QString prefixPath = QString(uri).replace('.', '/');
-        const QString prefix = "/qt/qml/" + prefixPath;
-        const QString resourceName = node->name + "BigResource";
-
-        bigResourceContent = QString::fromUtf8(BIG_RESOURCE_TEMPLATE, -1)
-                                 .arg(node->name, resourceName, prefix, resourceContent);
+        templatePostfix += QString::fromUtf8(TEMPLATE_LINK_LIBRARIES, -1).arg(pluginNames);
     }
 
     const QString fileTemplate = readTemplate(TEMPLATE_CMAKELISTS_MODULE);
-    const QString fileContent =
-        fileTemplate.arg(content, node->name, uri, moduleContent, bigResourceContent);
+    const QString fileContent
+        = fileTemplate.arg(node->name, node->uri, templatePrefix, moduleContent, templatePostfix);
 
-    const Utils::FilePath file = node->dir.pathAppended("CMakeLists.txt");
-    writeFile(file, fileContent);
+    writeFile(writeToFile, fileContent);
 }
 
 void CMakeGenerator::createEntryPoints(const NodePtr &node) const
@@ -295,6 +221,7 @@ void CMakeGenerator::createMainCppFile(const NodePtr &node) const
 
         const Utils::FilePath componentsHeaderPath = srcDir.pathAppended(
             "import_qml_components_plugins.h");
+
         const QString componentsHeaderContent = readTemplate(TEMPLATE_HEADER_IMPORT_COMPS);
         writeFile(componentsHeaderPath, componentsHeaderContent);
 
@@ -314,7 +241,8 @@ void CMakeGenerator::createMainCppFile(const NodePtr &node) const
                     value.prepend(":/");
                 environment.append(QString("    qputenv(\"%1\", \"%2\");\n").arg(key).arg(value));
             }
-            const QString envHeaderContent = readTemplate(TEMPLATE_HEADER_ENVIRONMENT).arg(environment);
+            const QString envHeaderContent
+                = readTemplate(TEMPLATE_HEADER_ENVIRONMENT).arg(environment);
             writeFile(envHeaderPath, envHeaderContent);
         }
     }
@@ -337,10 +265,15 @@ void CMakeGenerator::writeFile(const Utils::FilePath &path, const QString &conte
     fileHandle.close();
 }
 
-QString CMakeGenerator::makeEnvironmentVariable(const QString &key) const
+QString CMakeGenerator::makeRelative(const NodePtr &node, const Utils::FilePath &path) const
 {
-    QString value = {};
+    const QString dir = node->dir.toString();
+    return "\"" + Utils::FilePath::calcRelativePath(path.toString(), dir) + "\"";
+}
 
+QString CMakeGenerator::makeEnvironmentVariable(const QString &key) const
+{
+    QString value;
     if (m_buildSystem) {
         auto envItems = m_buildSystem->environment();
         auto confEnv = std::find_if(envItems.begin(),
@@ -352,6 +285,78 @@ QString CMakeGenerator::makeEnvironmentVariable(const QString &key) const
     return value;
 }
 
+QString CMakeGenerator::makeSingletonBlock(const NodePtr &node) const
+{
+    const QString setProperties(
+        "set_source_files_properties(%1\n    PROPERTIES\n        %2 %3\n)\n\n");
+
+    QString str;
+    for (const Utils::FilePath &path : node->singletons)
+        str.append(setProperties.arg(path.fileName()).arg("QT_QML_SINGLETON_TYPE").arg("true"));
+    return str;
+}
+
+QString CMakeGenerator::makeSubdirectoriesBlock(const NodePtr &node) const
+{
+    QString str;
+    for (const NodePtr &n : node->subdirs) {
+        if (n->module || hasChildModule(n))
+            str.append(QString("add_subdirectory(%1)\n").arg(n->dir.fileName()));
+    }
+    return str;
+}
+
+QString CMakeGenerator::makeQmlFilesBlock(const NodePtr &node) const
+{
+    QString qmlFileContent;
+    for (const Utils::FilePath &path : qmlFiles(node))
+        qmlFileContent.append(QString("        %1\n").arg(makeRelative(node, path)));
+
+    if (isRootNode(node) && qmlFileContent.isEmpty())
+        qmlFileContent.append(QString("        %1\n").arg("\"main.qml\""));
+
+    QString str;
+    if (!qmlFileContent.isEmpty())
+        str.append(QString("    QML_FILES\n%1").arg(qmlFileContent));
+
+    return str;
+}
+
+std::tuple<QString, QString> CMakeGenerator::makeResourcesBlocks(const NodePtr &node) const
+{
+    QString resourcesOut;
+    QString bigResourcesOut;
+
+    QString resourceFiles;
+    std::vector<QString> bigResources;
+    for (const Utils::FilePath &path : resources(node)) {
+        if (path.fileSize() > 5000000) {
+            bigResources.push_back(makeRelative(node, path));
+            continue;
+        }
+        resourceFiles.append(QString("        %1\n").arg(makeRelative(node, path)));
+    }
+
+    if (!resourceFiles.isEmpty())
+        resourcesOut.append(QString("    RESOURCES\n%1").arg(resourceFiles));
+
+    QString templatePostfix;
+    if (!bigResources.empty()) {
+        QString resourceContent;
+        for (const QString &res : bigResources)
+            resourceContent.append(QString("\n    %1").arg(res));
+
+        const QString prefixPath = QString(node->uri).replace('.', '/');
+        const QString prefix = "/qt/qml/" + prefixPath;
+        const QString resourceName = node->name + "BigResource";
+
+        bigResourcesOut = QString::fromUtf8(TEMPLATE_BIG_RESOURCES, -1)
+                              .arg(node->name, resourceName, prefix, resourceContent);
+    }
+
+    return {resourcesOut, bigResourcesOut};
+}
+
 QString CMakeGenerator::readTemplate(const QString &templatePath) const
 {
     QFile templatefile(templatePath);
@@ -384,7 +389,6 @@ void CMakeGenerator::readQmlDir(const Utils::FilePath &filePath, NodePtr &node)
                 node->singletons.push_back(tmp);
         }
     }
-
     f.close();
 }
 
@@ -470,6 +474,11 @@ void CMakeGenerator::removeFile(NodePtr &node, const Utils::FilePath &path) cons
     }
 }
 
+bool CMakeGenerator::isRootNode(const NodePtr &node) const
+{
+    return node->name == "Main";
+}
+
 bool CMakeGenerator::hasChildModule(const NodePtr &node) const
 {
     for (const NodePtr &child : node->subdirs) {
@@ -484,11 +493,20 @@ bool CMakeGenerator::hasChildModule(const NodePtr &node) const
 bool CMakeGenerator::isResource(const Utils::FilePath &path) const
 {
     static const QStringList suffixes = {
-        "json", "mesh", "dae", "qad", "hints", "png", "hdr", "ttf", "jpg",
-        "JPG", "js", "qsb", "frag", "frag.qsb", "vert", "vert.qsb", "svg", "ktx"};
+        "json", "mesh", "dae", "qad", "hints", "png", "hdr", "ttf", "jpg", "JPG",
+        "js", "qsb", "frag", "frag.qsb", "vert", "vert.qsb", "svg", "ktx"};
     return suffixes.contains(path.suffix());
 }
 
+void CMakeGenerator::printModules(const NodePtr &node) const
+{
+    if (node->module)
+        qDebug() << "Module: " << node->name;
+
+    for (const auto &child : node->subdirs)
+        printModules(child);
+}
+
 void CMakeGenerator::printNodeTree(const NodePtr &generatorNode, size_t indent) const
 {
     auto addIndent = [](size_t level) -> QString {
@@ -516,8 +534,9 @@ void CMakeGenerator::parseNodeTree(NodePtr &generatorNode,
         if (const auto *subFolderNode = childNode->asFolderNode()) {
             CMakeGenerator::NodePtr childGeneratorNode = std::make_shared<Node>();
             childGeneratorNode->parent = generatorNode;
-            childGeneratorNode->name = subFolderNode->displayName();
             childGeneratorNode->dir = subFolderNode->filePath();
+            childGeneratorNode->name = subFolderNode->displayName();
+            childGeneratorNode->uri = childGeneratorNode->name;
             parseNodeTree(childGeneratorNode, subFolderNode);
             generatorNode->subdirs.push_back(childGeneratorNode);
         } else if (auto *fileNode = childNode->asFileNode()) {
diff --git a/src/plugins/qmlprojectmanager/cmakegen/cmakegenerator.h b/src/plugins/qmlprojectmanager/cmakegen/cmakegenerator.h
index 54445d3561..f89257ac5d 100644
--- a/src/plugins/qmlprojectmanager/cmakegen/cmakegenerator.h
+++ b/src/plugins/qmlprojectmanager/cmakegen/cmakegenerator.h
@@ -17,11 +17,6 @@ class QmlBuildSystem;
 
 namespace GenerateCmake {
 
-// TODO:
-// - Create "module" for src dir
-// - Replace AppName in templates with ${CMAKE_PROJECT_NAME}
-// - Introduce Blacklist (designer)
-
 class CMakeGenerator : public QObject
 {
     Q_OBJECT
@@ -53,15 +48,15 @@ private:
     };
 
     using NodePtr = std::shared_ptr<Node>;
+    using FileGetter = std::function<std::vector<Utils::FilePath>(const NodePtr &)>;
 
+    std::vector<Utils::FilePath> files(const NodePtr &node, const FileGetter &getter) const;
     std::vector<Utils::FilePath> qmlFiles(const NodePtr &node) const;
     std::vector<Utils::FilePath> singletons(const NodePtr &node) const;
     std::vector<Utils::FilePath> resources(const NodePtr &node) const;
     std::vector<Utils::FilePath> sources(const NodePtr &node) const;
 
     void createCMakeFiles(const NodePtr &node) const;
-
-    void createQmlModuleFile(const NodePtr &node) const;
     void createMainCMakeFile(const NodePtr &node) const;
     void createModuleCMakeFile(const NodePtr &node) const;
 
@@ -69,7 +64,12 @@ private:
     void createMainCppFile(const NodePtr &node) const;
     void writeFile(const Utils::FilePath &path, const QString &content) const;
 
+    QString makeRelative(const NodePtr &node, const Utils::FilePath &path) const;
     QString makeEnvironmentVariable(const QString &key) const;
+    QString makeSingletonBlock(const NodePtr &node) const;
+    QString makeSubdirectoriesBlock(const NodePtr &node) const;
+    QString makeQmlFilesBlock(const NodePtr &node) const;
+    std::tuple<QString, QString> makeResourcesBlocks(const NodePtr &node) const;
 
     QString readTemplate(const QString &templatePath) const;
     void readQmlDir(const Utils::FilePath &filePath, NodePtr &node) const;
@@ -81,9 +81,11 @@ private:
     void insertFile(NodePtr &node, const Utils::FilePath &path) const;
     void removeFile(NodePtr &node, const Utils::FilePath &path) const;
 
+    bool isRootNode(const NodePtr &node) const;
     bool hasChildModule(const NodePtr &node) const;
     bool isResource(const Utils::FilePath &path) const;
 
+    void printModules(const NodePtr &generatorNode) const;
     void printNodeTree(const NodePtr &generatorNode, size_t indent = 0) const;
 
     void parseNodeTree(NodePtr &generatorNode, const ProjectExplorer::FolderNode *folderNode);
diff --git a/src/plugins/qmlprojectmanager/cmakegen/gencmakemodule.tpl b/src/plugins/qmlprojectmanager/cmakegen/gencmakemodule.tpl
index 7c4b38b043..b81d253c90 100644
--- a/src/plugins/qmlprojectmanager/cmakegen/gencmakemodule.tpl
+++ b/src/plugins/qmlprojectmanager/cmakegen/gencmakemodule.tpl
@@ -1,11 +1,11 @@
 ### This file is automatically generated by Qt Design Studio.
 ### Do not change
 
-%1
+%3
 
-qt_add_library(%2 STATIC)
-qt6_add_qml_module(%2
-    URI "%3"
+qt_add_library(%1 STATIC)
+qt6_add_qml_module(%1
+    URI "%2"
     VERSION 1.0
     RESOURCE_PREFIX "/qt/qml"
 %4
diff --git a/src/plugins/qmlprojectmanager/cmakegen/gencmakeroot.tpl b/src/plugins/qmlprojectmanager/cmakegen/gencmakeroot.tpl
index 0b8553d195..a23a311c1a 100644
--- a/src/plugins/qmlprojectmanager/cmakegen/gencmakeroot.tpl
+++ b/src/plugins/qmlprojectmanager/cmakegen/gencmakeroot.tpl
@@ -19,14 +19,14 @@ if (Qt6_VERSION VERSION_GREATER_EQUAL 6.3)
     qt_standard_project_setup()
 endif()
 
-qt_add_executable(%1 %2)
+qt_add_executable(${CMAKE_PROJECT_NAME} %2)
 
-qt_add_resources(%1 "configuration"
+qt_add_resources(${CMAKE_PROJECT_NAME} "configuration"
     PREFIX "/"
 %3
 )
 
-target_link_libraries(%1 PRIVATE
+target_link_libraries(${CMAKE_PROJECT_NAME} PRIVATE
     Qt${QT_VERSION_MAJOR}::Core
     Qt${QT_VERSION_MAJOR}::Gui
     Qt${QT_VERSION_MAJOR}::Quick
@@ -44,7 +44,7 @@ if (LINK_INSIGHT)
 endif ()
 
 include(GNUInstallDirs)
-install(TARGETS %1
+install(TARGETS ${CMAKE_PROJECT_NAME}
   BUNDLE DESTINATION .
   LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
   RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}