use importlib_resources for <= 3.9, not only <= 3.8, OCR-D/ocrd_froc#10

.scrutinizer.yml

@@ -3,6 +3,10 @@ checks:
 
 build:
   image: default-bionic
+  environment:
+    python:
+      version: 3.8.2
+      virtualenv: true
   nodes:
     analysis:
       dependencies:

CHANGELOG.md

@@ -5,6 +5,10 @@ Versioned according to [Semantic Versioning](http://semver.org/).
 
 ## Unreleased
 
+Fixed:
+
+  - bashlib processors will download on-demand, like pythonic processors do, #1216, #1217
+
 ## [2.64.1] - 2024-04-22
 
 Fixed:

src/ocrd/cli/bashlib.py

@@ -114,6 +114,10 @@ def bashlib_input_files(**kwargs):
                           input_file_grp=kwargs['input_file_grp'],
                           output_file_grp=kwargs['output_file_grp'])
     for input_files in processor.zip_input_files(mimetype=None, on_error='abort'):
+        # ensure all input files exist locally (without persisting them in the METS)
+        # - this mimics the default behaviour of all Pythonic processors
+        input_files = [workspace.download_file(input_file) if input_file else None
+                       for input_file in input_files]
         for field in ['url', 'local_filename', 'ID', 'mimetype', 'pageId']:
             # make this bash-friendly (show initialization for associative array)
             if len(input_files) > 1: