adding initial CLI support

src/crewai/project/crew_base.py

@@ -0,0 +1,42 @@
+import inspect
+import os
+from pathlib import Path
+
+import yaml
+
+
+def CrewBase(cls):
+    class WrappedClass(cls):
+        is_crew_class = True
+
+        base_directory = None
+        for frame_info in inspect.stack():
+            if "site-packages" not in frame_info.filename:
+                base_directory = Path(frame_info.filename).parent.resolve()
+                break
+
+        if base_directory is None:
+            raise Exception(
+                "Unable to dynamically determine the project's base directory, you must run it from the project's root directory."
+            )
+
+        original_agents_config_path = getattr(
+            cls, "agents_config", "config/agents.yaml"
+        )
+        original_tasks_config_path = getattr(cls, "tasks_config", "config/tasks.yaml")
+
+        def __init__(self, *args, **kwargs):
+            super().__init__(*args, **kwargs)
+            self.agents_config = self.load_yaml(
+                os.path.join(self.base_directory, self.original_agents_config_path)
+            )
+            self.tasks_config = self.load_yaml(
+                os.path.join(self.base_directory, self.original_tasks_config_path)
+            )
+
+        @staticmethod
+        def load_yaml(config_path: str):
+            with open(config_path, "r") as file:
+                return yaml.safe_load(file)
+
+    return WrappedClass