Utils: Add commonly used paths to AppInfo

Change-Id: Icfd7e549a1589aff13bfacfe6abd85e7e780b3c0
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/app/main.cpp

@@ -522,6 +522,38 @@ private:
 
 ShowInGuiHandler *ShowInGuiHandler::instance = nullptr;
 
+FilePath userPluginsRoot()
+{
+    FilePath rootPath = FilePath::fromUserInput(
+        QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation));
+
+    if (HostOsInfo::isAnyUnixHost() && !HostOsInfo::isMacHost())
+        rootPath /= "data";
+
+    rootPath /= Core::Constants::IDE_SETTINGSVARIANT_STR;
+
+    rootPath /= QLatin1StringView(
+        HostOsInfo::isMacHost() ? Core::Constants::IDE_DISPLAY_NAME : Core::Constants::IDE_ID);
+    rootPath /= "plugins";
+
+    rootPath /= Core::Constants::IDE_VERSION_LONG;
+
+    return rootPath;
+}
+
+FilePath userResourcePath(const QString &settingsPath, const QString &appId)
+{
+    const FilePath configDir = FilePath::fromUserInput(settingsPath).parentDir();
+    const FilePath urp = configDir / appId;
+
+    if (!urp.exists()) {
+        if (!urp.createDir())
+            qWarning() << "could not create" << urp;
+    }
+
+    return urp;
+}
+
 int main(int argc, char **argv)
 {
     Restarter restarter(argc, argv);
@@ -723,6 +755,14 @@ int main(int argc, char **argv)
     info.revision = Constants::IDE_REVISION_STR;
     info.revisionUrl = Constants::IDE_REVISION_URL;
     info.userFileExtension = Constants::IDE_PROJECT_USER_FILE_EXTENSION;
+
+    const FilePath appDirPath = FilePath::fromUserInput(QApplication::applicationDirPath());
+
+    info.plugins = (appDirPath / RELATIVE_PLUGIN_PATH).cleanPath();
+    info.userPluginsRoot = userPluginsRoot();
+    info.resources = (appDirPath / RELATIVE_DATA_PATH).cleanPath();
+    info.userResources = userResourcePath(settings->fileName(), Constants::IDE_ID);
+
     Utils::Internal::setAppInfo(info);
 
     QTranslator translator;

src/libs/utils/appinfo.cpp

@@ -7,7 +7,7 @@ Q_GLOBAL_STATIC(Utils::AppInfo, sAppInfo)
 
 namespace Utils {
 
-Utils::AppInfo appInfo()
+const Utils::AppInfo &appInfo()
 {
     return *sAppInfo;
 }

src/libs/utils/appinfo.h

@@ -5,6 +5,8 @@
 
 #include "utils_global.h"
 
+#include "filepath.h"
+
 #include <QString>
 
 namespace Utils {
@@ -19,9 +21,22 @@ public:
     QString revision;
     QString revisionUrl;
     QString userFileExtension;
+
+    FilePath plugins;
+
+    /*! Local plugin path: <localappdata>/plugins
+        where <localappdata> is e.g.
+        "%LOCALAPPDATA%\QtProject\qtcreator" on Windows Vista and later
+        "$XDG_DATA_HOME/data/QtProject/qtcreator" or "~/.local/share/data/QtProject/qtcreator" on Linux
+        "~/Library/Application Support/QtProject/Qt Creator" on Mac
+    */
+    FilePath userPluginsRoot;
+
+    FilePath resources;
+    FilePath userResources;
 };
 
-QTCREATOR_UTILS_EXPORT AppInfo appInfo();
+QTCREATOR_UTILS_EXPORT const AppInfo &appInfo();
 
 namespace Internal {
 QTCREATOR_UTILS_EXPORT void setAppInfo(const AppInfo &info);