add dry run for loading data using the integrity functions

corrlib/meas_io.py

@@ -11,6 +11,7 @@ from .tracker import get, save, unlock
 import shutil
 from typing import Any
 from pathlib import Path
+from .integrity import _check_db2paths
 
 
 CACHE_DIR = ".cache"
@@ -153,7 +154,7 @@ def load_record(path: Path, meas_path: str) -> Union[Corr, Obs]:
     return load_records(path, [meas_path])[0]
 
 
-def load_records(path: Path, meas_paths: list[str], preloaded: dict[str, Any] = {}) -> list[Union[Corr, Obs]]:
+def load_records(path: Path, meas_paths: list[str], preloaded: dict[str, Any] = {}, dry_run: bool = False) -> list[Union[Corr, Obs]]:
     """
     Load a list of records by their paths.
 
@@ -163,14 +164,19 @@ def load_records(path: Path, meas_paths: list[str], preloaded: dict[str, Any] =
         Path of the correlator library.
     meas_paths: list[str]
         A list of the paths to the correlator in the backlog system.
-    perloaded: dict[str, Any]
-        The data that is already prelaoded. Of interest if data has alread been loaded in the same script.
+    preloaded: dict[str, Any]
+        The data that is already preloaded. Of interest if data has alread been loaded in the same script.
+    dry_run: bool
+        Do not load datda, just check whether we can reach the data we are interested in.
 
     Returns
     -------
-    retruned_data: list
+    returned_data: list
         The loaded records.
     """
+    if dry_run:
+        _check_db2paths(path, meas_paths)
+        return
     needed_data: dict[str, list[str]] = {}
     for mpath in meas_paths:
         file = mpath.split("::")[0]