Bug/290 fixed listing files in bucket fs for empty bucket location (#291)

* #290: Fixed listing files in BucketFS for empty bucket location
* Prepare release 2.2.1

Author: ckunki

.scs-complete.bash

@@ -0,0 +1,29 @@
+_scs_completion() {
+    local IFS=$'\n'
+    local response
+
+    response=$(env COMP_WORDS="${COMP_WORDS[*]}" COMP_CWORD=$COMP_CWORD _SCS_COMPLETE=bash_complete $1)
+
+    for completion in $response; do
+        IFS=',' read type value <<< "$completion"
+
+        if [[ $type == 'dir' ]]; then
+            COMPREPLY=()
+            compopt -o dirnames
+        elif [[ $type == 'file' ]]; then
+            COMPREPLY=()
+            compopt -o default
+        elif [[ $type == 'plain' ]]; then
+            COMPREPLY+=($value)
+        fi
+    done
+
+    return 0
+}
+
+_scs_completion_setup() {
+    complete -o nosort -F _scs_completion scs
+}
+
+_scs_completion_setup;
+

doc/changes/changelog.md

@@ -0,0 +1,9 @@
+# 2.2.1 - 2025-10-24
+
+## Summary
+
+This release fixes a bug when checking access to an empty BucketFS in CLI command `scs check --connect`.
+
+## Bugfixes
+
+* #290: Fixed listing files in BucketFS for empty bucket location

doc/changes/changes_2.2.1.md

@@ -22,9 +22,19 @@ def random_file_name(other_than: list[str]) -> str:
     return result
 
 
+from collections.abc import Iterator
+
+
+def files_in(bfsloc: bfs.path.PathLike) -> list[bfs.path.PathLike]:
+    try:
+        return list(bfsloc.iterdir())
+    except FileNotFoundError:
+        return []
+
+
 def verify_bucketfs_access(scs: Secrets) -> None:
     bfs_root = open_bucketfs_location(scs)
-    existing = [f.name for f in bfs_root.iterdir()]
+    existing = [f.name for f in files_in(bfs_root)]
     file = bfs_root / random_file_name(other_than=existing)
     content = random_string(length=100)
     try:

exasol/nb_connector/cli/processing/bucketfs_access.py

@@ -1,6 +1,6 @@
 [project]
 name = "exasol-notebook-connector"
-version = "2.2.0"
+version = "2.2.1"
 requires-python = ">=3.10,<3.13"
 description = "Components, tools, APIs, and configurations in order to connect Jupyter notebooks to Exasol and various other systems."
 packages = [{ include = "exasol" }, ]