put metrics in xml output

Author: ludviggunne

cli/cppcheckexecutor.cpp

@@ -483,6 +483,19 @@ int CppCheckExecutor::check_internal(const Settings& settings, Suppressions& sup
     stdLogger.writeCheckersReport(supprs);
 
     if (settings.outputFormat == Settings::OutputFormat::xml) {
+
+        if (settings.xml_version == 3) {
+            std::cout << "    <metrics>" << std::endl;
+            for (const auto &metric : cppcheck.mFileMetrics) {
+                std::cout << "        <metric id=\"" << metric.id << "\" file=\"" << metric.file << "\"";
+                for (const auto &pair : metric.params) {
+                    std::cout << " " << pair.first << "=\"" << pair.second << "\"";
+                }
+                std::cout << "/>" << std::endl;
+            }
+            std::cout << "    </metrics>" << std::endl;
+        }
+
         stdLogger.reportErr(ErrorMessage::getXMLFooter(settings.xml_version));
     }
 

lib/cppcheck.cpp

@@ -1764,6 +1764,23 @@ void CppCheck::executeAddons(const std::vector<std::string>& files, const std::s
                 }
             }
 
+            if (obj.count("metric") > 0) {
+                picojson::object metric_json = obj["metric"].get<picojson::object>();
+                const std::string id = metric_json["id"].get<std::string>();
+                const std::string file = metric_json["file"].get<std::string>();
+                FileMetric metric = { id, file };
+
+                picojson::object params = metric_json["params"].get<picojson::object>();
+                for (auto pair : params) {
+                    const std::string key = pair.first;
+                    const std::int64_t value = pair.second.get<std::int64_t>();
+                    metric.params[key] = value;
+                }
+
+                mFileMetrics.push_back(metric);
+                continue;
+            }
+
             errmsg.id = obj["addon"].get<std::string>() + "-" + obj["errorId"].get<std::string>();
             if (misraC2023 && startsWith(errmsg.id, "misra-c2012-"))
                 errmsg.id = "misra-c2023-" + errmsg.id.substr(12);

lib/cppcheck.h

@@ -31,6 +31,7 @@
 #include <memory>
 #include <string>
 #include <vector>
+#include <map>
 
 class TokenList;
 enum class SHOWTIME_MODES : std::uint8_t;
@@ -48,6 +49,12 @@ namespace simplecpp { class TokenList; }
 /// @addtogroup Core
 /// @{
 
+struct FileMetric {
+    std::string id;
+    std::string file;
+    std::map<std::string, std::int64_t> params;
+};
+
 /**
  * @brief This is the base class which will use other classes to do
  * static code analysis for C and C++ code to find possible
@@ -139,6 +146,8 @@ class CPPCHECKLIB CppCheck {
     static void resetTimerResults();
     static void printTimerResults(SHOWTIME_MODES mode);
 
+    std::vector<FileMetric> mFileMetrics;
+
 private:
     void purgedConfigurationMessage(const std::string &file, const std::string& configuration);