entries in the dataset now store what build system

they use

handlers.py

@@ -124,6 +124,10 @@ class BuildHandler(ABC):
     def clean_repo(self) -> None:
         self.container.exec_run(self.clean_cmd())
 
+    @abstractmethod
+    def get_type(self) -> str:
+        pass
+
     @abstractmethod
     def compile_cmd(self) -> str:
         pass
@@ -160,6 +164,9 @@ class MavenHandler(BuildHandler):
         # -Dstyle.color=never: Disables ANSI colors.
         # -Dartifact.download.skip=true: Prevents Maven from printing download logs (but still downloads dependencies when needed).
 
+    def get_type(self) -> str:
+        return "maven"
+
     def compile_cmd(self) -> str:
         return f"{self.base_cmd} clean compile"
 
@@ -205,6 +212,9 @@ class GradleHandler(BuildHandler):
         super().__init__(repo_path, build_file, updates)
         self.base_cmd = "gradle --no-daemon --console=plain"
 
+    def get_type(self) -> str:
+        return "gradle"
+
     def compile_cmd(self) -> str:
         return f"{self.base_cmd} compileJava"