implement cache drop

corrlib/cli.py

@@ -6,6 +6,7 @@ from .toml import import_tomls, update_project, reimport_project
 from .find import find_record, list_projects
 from .tools import str2list
 from .main import update_aliases
+from .meas_io import drop_cache as mio_drop_cache
 import os
 
 app = typer.Typer()
@@ -157,6 +158,21 @@ def init(
     return
 
 
+@app.command()
+def drop_cache(
+    path: str = typer.Option(
+        str('./corrlib'),
+        "--dataset",
+        "-d",
+    ),
+) -> None:
+    """
+    Drop the currect cache directory of the dataset.
+    """
+    mio_drop_cache(path)
+    return
+
+
 @app.callback()
 def main(
     version: Optional[bool] = typer.Option(

corrlib/meas_io.py

@@ -8,6 +8,7 @@ from typing import Union
 from pyerrors import Obs, Corr, dump_object, load_object
 from hashlib import sha256
 from .tools import cached
+import shutil
 
 
 def write_measurement(path, ensemble, measurement, uuid, code, parameter_file=None):
@@ -194,3 +195,8 @@ def drop_record(path: str, meas_path: str):
         return
     else:
         raise ValueError("This measurement does not exist as a file!")
+
+def drop_cache(path: str):
+    cache_dir = os.path.join(path, ".cache")
+    for f in os.listdir(cache_dir):
+        shutil.rmtree(os.path.join(cache_dir, f))