Cache for reading annotation

copienator/commands/reading_annotations.py

@@ -24,6 +24,7 @@ from copienator.annotation_actions import apply_checkbox_actions, apply_score_ov
 from copienator.annotation_data import AnnotationData, load_annotation_data
 from copienator.annotation_documents import copy_documents
 from copienator.annotation_layout import legacy_layout
+from copienator.annotation_read_cache import AnnotationReadCache
 from copienator.annotation_modifications import (
     BASELINE,
     output_removals,
@@ -31,6 +32,7 @@ from copienator.annotation_modifications import (
 )
 from copienator.answer_info import build_answer_info
 from copienator.commands import annotating
+from copienator.commands.giving_names import update_named_return_answers
 from copienator.filesystem import staged_files
 from copienator.return_answers import save_return_answer_options
 
@@ -324,7 +326,12 @@ def run(
         return ExitCode.PARTIAL
 
     status = ExitCode.PARTIAL if loaded.warnings else ExitCode.SUCCESS
+    cache = AnnotationReadCache(workspace, "Bnot", loaded.data) if update_score else None
+    regenerated: set[str] = set()
     for student_id in sorted(loaded.data, key=utils.natural_key):
+        if cache is not None and cache.unchanged(student_id):
+            print(f"Skipping unchanged Copie{student_id}")
+            continue
         output_dir = workspace.annotation_dir("checks") / f"Copie{student_id}"
         only_empty = all(content["result"].get("error") == "empty-answer"
                          for content in loaded.data[student_id].values())
@@ -372,6 +379,12 @@ def run(
         )
         if result != ExitCode.SUCCESS:
             status = ExitCode.PARTIAL
+        else:
+            regenerated.add(student_id)
+    if update_named_return_answers(workspace, "Bnot", copy_ids=regenerated) != ExitCode.SUCCESS:
+        status = ExitCode.PARTIAL
+    elif cache is not None:
+        cache.remember(regenerated)
     return status