buzz-rss/buzzrss/migrations.py
Eddy de Vink a03f76ca83 v1.5.0: entry-dedup in één query + conditional get (ETag/Last-Modified)
- filter_entries: één SELECT per feed i.p.v. per-entry EXISTS (1082 queries → 20)
- feed.etag/last_modified (migratie v9); parse_feed stuurt If-None-Match/If-Modified-Since, 304 → None
- _poll_once telt unchanged (304-feeds); summary-regel uitgebreid met unchanged
- _poll_feeds re-raised CancelledError (reload-stapeling duplicaten) + handler-cleanup
2026-09-06 00:11:22 +02:00

107 lines
4.2 KiB
Python

# rss - A maubot plugin to subscribe to RSS/Atom feeds.
# Copyright (C) 2022 Tulir Asokan
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
from mautrix.util.async_db import Connection, Scheme, UpgradeTable
upgrade_table = UpgradeTable()
@upgrade_table.register(description="Latest revision", upgrades_to=5)
async def upgrade_latest(conn: Connection, scheme: Scheme) -> None:
gen = "GENERATED ALWAYS AS IDENTITY" if scheme != Scheme.SQLITE else ""
await conn.execute(f"""
CREATE TABLE IF NOT EXISTS feed (
id INTEGER {gen},
url TEXT NOT NULL,
title TEXT NOT NULL,
subtitle TEXT NOT NULL,
link TEXT NOT NULL,
next_retry BIGINT DEFAULT 0,
error_count BIGINT DEFAULT 0,
PRIMARY KEY (id),
UNIQUE (url)
)
""")
await conn.execute("""
CREATE TABLE IF NOT EXISTS subscription (
feed_id INTEGER,
room_id TEXT,
user_id TEXT NOT NULL,
notification_template TEXT,
send_notice BOOLEAN DEFAULT true,
title_exclude_filter TEXT DEFAULT '',
PRIMARY KEY (feed_id, room_id),
FOREIGN KEY (feed_id) REFERENCES feed (id)
)
""")
await conn.execute("""
CREATE TABLE IF NOT EXISTS entry (
feed_id INTEGER,
id TEXT,
date timestamp with time zone NOT NULL,
title TEXT NOT NULL,
summary TEXT NOT NULL,
link TEXT NOT NULL,
PRIMARY KEY (feed_id, id),
FOREIGN KEY (feed_id) REFERENCES feed (id)
)
""")
@upgrade_table.register(description="Add send_notice field to subscriptions")
async def upgrade_v2(conn: Connection) -> None:
await conn.execute("ALTER TABLE subscription ADD COLUMN send_notice BOOLEAN DEFAULT true")
@upgrade_table.register(description="Add error counts to feeds")
async def upgrade_v3(conn: Connection) -> None:
await conn.execute("ALTER TABLE feed ADD COLUMN next_retry BIGINT DEFAULT 0")
await conn.execute("ALTER TABLE feed ADD COLUMN error_count BIGINT DEFAULT 0")
@upgrade_table.register(description="Change entry date to timezone-aware")
async def upgrade_v4(conn: Connection, scheme: Scheme) -> None:
if scheme == Scheme.POSTGRES:
await conn.execute("ALTER TABLE entry ALTER COLUMN date TYPE timestamp with time zone")
@upgrade_table.register(description="Add title exclude filter to subscriptions")
async def upgrade_v5(conn: Connection) -> None:
await conn.execute("ALTER TABLE subscription ADD COLUMN title_exclude_filter TEXT DEFAULT ''")
@upgrade_table.register(description="Rename title exclude filter to match filter (whitelist mode)")
async def upgrade_v6(conn: Connection) -> None:
await conn.execute("ALTER TABLE subscription RENAME COLUMN title_exclude_filter TO match_filter")
@upgrade_table.register(description="Remove per-subscription filter (single global config filter)")
async def upgrade_v7(conn: Connection) -> None:
await conn.execute("ALTER TABLE subscription DROP COLUMN IF EXISTS match_filter")
@upgrade_table.register(description="Add paywalled flag to entries")
async def upgrade_v8(conn: Connection) -> None:
await conn.execute("ALTER TABLE entry ADD COLUMN paywalled BOOLEAN NOT NULL DEFAULT false")
@upgrade_table.register(description="Add conditional-fetch headers to feeds")
async def upgrade_v9(conn: Connection) -> None:
await conn.execute("ALTER TABLE feed ADD COLUMN etag TEXT DEFAULT ''")
await conn.execute("ALTER TABLE feed ADD COLUMN last_modified TEXT DEFAULT ''")