fix weird issue in singularity

Dockerfile

@@ -54,7 +54,8 @@ RUN apt-get update && \
 
 # install giant-squid
 RUN cargo install mwa_giant_squid --locked && \
-    rm -rf ${CARGO_HOME}/registry /opt/cargo/git/checkouts/
+    cargo clean && \
+    rm -rf ${CARGO_HOME}/registry ${CARGO_HOME}/git
 
 # for example, CMAKE_ARGS="-D CMAKE_CXX_FLAGS='-march=native -mtune=native -O3 -fomit-frame-pointer'"
 ARG CMAKE_ARGS="-DPORTABLE=True"

demo/04_ssins.py

@@ -3,6 +3,8 @@
 # identify RFI using ssins
 # details: https://github.com/mwilensky768/SSINS
 
+# tip: you can use this script to apply the ssins mask https://raw.githubusercontent.com/MWATelescope/MWAEoR-Pipeline/refs/heads/main/templates/ssins_apply.py
+
 from pyuvdata import UVData
 from SSINS import SS, INS, MF
 import os
@@ -740,7 +742,7 @@ def read_select(uvd: UVData, args):
         read_time = time.time() - start
         print(f"read took {int(read_time)}s. {int(total_size_mb/read_time)} MB/s")
     else:
-        raise ValueError
+        raise ValueError(f"could not determine visibility file type {file_groups}")
 
     if args.sel_pols:
         select_kwargs["polarizations"] = args.sel_pols