Update codegen, make use of source location information

CMakeLists.txt

@@ -163,7 +163,8 @@ add_custom_target(
 add_dependencies(run_codegen codegen)
 add_custom_command(
   OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/__codegen.h"
-  COMMAND codegen ARGS "${PROJECT_SOURCE_DIR}/modules" "${PROJECT_SOURCE_DIR}/src"
+  COMMAND codegen ARGS "modules" "src"
+  WORKING_DIRECTORY "${PROJECT_SOURCE_DIR}"
   VERBATIM
 )
 set_target_properties(codegen-lib PROPERTIES FOLDER "support")

include/openspace/scripting/lualibrary.h

@@ -61,6 +61,11 @@ struct LuaLibrary {
         std::string returnType;
         /// A help text describing what the function does/
         std::string helpText;
+        /// The source location where the implementation for this Lua file is located
+        struct {
+            std::string file = "<none>";
+            int line = 0;
+        } sourceLocation;
     };
     /// The name of the library
     std::string name;

src/scripting/scriptengine.cpp

@@ -113,7 +113,11 @@ namespace {
             }
             json << "],";
             json << fmt::format(replStr, "returnType", escapedJson(f.returnType));
-            json << fmt::format(replStr2, "help", escapedJson(f.helpText));
+            json << fmt::format(replStr, "help", escapedJson(f.helpText));
+            json << fmt::format(
+                "\"sourceLocation\": {{ \"file\": {}, \"line\": {} }}",
+                escapedJson(f.sourceLocation.file), f.sourceLocation.line
+            );
             json << "}";
             if (&f != &library.functions.back() || !library.documentations.empty()) {
                 json << ",";