Remove mark_as_read config tag name migration.

For #268.

CHANGES.rst

@@ -18,6 +18,8 @@ Unreleased
 
 * Remove old database migrations.
 
+  Remove :mod:`~reader.plugins.mark_as_read` config tag name migration.
+
   If you are upgrading from *reader* 2.10 or newer, no action is required.
 
   .. _removed migrations 3.0:
@@ -34,8 +36,15 @@ Unreleased
         python - db.sqlite << EOF
         import sys
         from reader import make_reader
-        make_reader(sys.argv[1])
+        from reader.plugins.mark_as_read import _migrate_pre_2_7_metadata as migrate_mark_as_read
+
+        reader = make_reader(sys.argv[1])
+
+        for feed in reader.get_feeds():
+            migrate_mark_as_read(reader, feed)
+
         print("OK")
+
         EOF
 
 * Remove code that issued deprecation warnings in versions 2.* (:issue:`268`):

src/reader/plugins/mark_as_read.py

@@ -80,24 +80,5 @@ def _mark_as_read(reader, entry, status):
             return
 
 
-_OLD_CONFIG_TAG = 'mark_as_read'
-
-
-def _migrate_pre_2_7_metadata(reader, feed):
-    old_key = reader.make_reader_reserved_name(_OLD_CONFIG_TAG)
-    old_value = reader.get_tag(feed, old_key, None)
-    if not old_value:
-        return
-
-    key = reader.make_reader_reserved_name(_CONFIG_TAG)
-    value = reader.get_tag(feed, key, None)
-    if value:  # pragma: no cover
-        return
-
-    reader.set_tag(feed, key, old_value)
-    reader.delete_tag(feed, old_key)
-
-
 def init_reader(reader):
-    reader.before_feed_update_hooks.append(_migrate_pre_2_7_metadata)
     reader.after_entry_update_hooks.append(_mark_as_read)

tests/test_plugins_mark_as_read.py

@@ -74,26 +74,3 @@ def test_regex_mark_as_read_bad_metadata(make_reader, value):
     reader.update_feeds()
 
     assert [e.read for e in reader.get_entries()] == [False]
-
-
-@pytest.mark.parametrize('with_entry', [False, True])
-def test_regex_mark_as_read_pre_2_7_metadata(make_reader, with_entry):
-    reader = make_reader(':memory:', plugins=['reader.mark_as_read'])
-
-    parser = Parser()
-    reader._parser = parser
-
-    one = parser.feed(1, datetime(2010, 1, 1))
-    if with_entry:
-        parser.entry(1, 1, datetime(2010, 1, 1), title='match old')
-
-    reader.add_feed(one)
-    reader.set_tag(one, '.reader.mark_as_read', {'title': ['^match']})
-
-    reader.update_feeds()
-
-    assert all(e.read for e in reader.get_entries())
-
-    tags = dict(reader.get_tags(one))
-    assert '.reader.mark_as_read' not in tags
-    assert tags['.reader.mark-as-read'] == {'title': ['^match']}