Fix writing to stderr from docker entrypoint

bin/docker_entrypoint.sh

@@ -17,20 +17,23 @@ export PGID="$(id -g archivebox)"
 
 # Check the permissions of the data dir (or create if it doesn't exist)
 if [[ -d "$DATA_DIR/archive" ]]; then
-    if touch "$DATA_DIR/archive/.permissions_test_safe_to_delete"; then
+    if touch "$DATA_DIR/archive/.permissions_test_safe_to_delete" 2>/dev/null; then
         # It's fine, we are able to write to the data directory
         rm "$DATA_DIR/archive/.permissions_test_safe_to_delete"
         # echo "[√] Permissions are correct"
     else
-        echo "[X] Error: ArchiveBox (uid=$PUID) is not able to write to your ./data dir. Fix the permissions and retry:" >2
-        echo "    \$ chown -R $PUID:$PGID data" >2
-        echo "    You may need to pass PUID & PGID to the Docker container: https://docs.linuxserver.io/general/understanding-puid-and-pgid" >2
+        echo "[X] Error: ArchiveBox (uid=$PUID) is not able to write to your ./data dir. Fix the permissions and retry:" >&2
+        echo "    \$ chown -R $PUID:$PGID data" >&2
+        echo "    You may need to pass PUID & PGID to the Docker container: https://docs.linuxserver.io/general/understanding-puid-and-pgid" >&2
         exit 1
     fi
 else
     # create data directory
     mkdir -p "$DATA_DIR/logs"
 fi
+
+# force set the ownership of the data dir contents to the archivebox user and group
+# this is needed because Docker Desktop often does not map user permissions from the host properly
 chown $ARCHIVEBOX_USER:$ARCHIVEBOX_USER "$DATA_DIR" "$DATA_DIR"/*
 
 # Drop permissions to run commands as the archivebox user