the artifact's config is not accessible in Rule.Artifact.fileName

    Rule {
        inputs: [ "devheader" ]
        Artifact {
            fileTags: [ "hpp",  "installed_content" ]
            fileName: "GeneratedFiles/" + input.modules.qbs.installDir + "/" + input.fileName
        }

        prepare: {
            var cmd = new JavaScriptCommand();
            cmd.sourceCode = function() {
                var inputFile = new TextFile(input.fileName, TextFile.ReadOnly);
                var file = new TextFile(output.fileName, TextFile.WriteOnly);
                file.truncate();
                file.write("#include \"" + input.fileName + "\"\n");
                file.close();
            }
            cmd.description = "generating " + FileInfo.fileName(output.fileName);
            cmd.highlight = "filegen";
            return cmd;
        }
    }

    Group {
        files: [
            "api/*_p.h",
            "api/draft/*_p.h",
            "api/draft/*.h"
        ]
        fileTags: ["devheader"]
        overrideTags: false
        qbs.installDir: "include/vreen/" + vreen.core.version + "/vreen/private"
    }