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chore: switch database engine to sqlite (fixes #9954) (#9965)

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Switch the database from LevelDB to SQLite, for greater stability and
simpler code.

Co-authored-by: Tommy van der Vorst <tommy@pixelspark.nl>
Co-authored-by: bt90 <btom1990@googlemail.com>
This commit is contained in:
Jakob Borg
2025-03-29 12:50:08 +00:00
committed by GitHub
parent b1c8f88a44
commit 025905fcdf
146 changed files with 8315 additions and 11984 deletions
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53
internal/db/sqlite/sql/schema/40-counts.sql Normal file
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-- Copyright (C) 2025 The Syncthing Authors.
--
-- This Source Code Form is subject to the terms of the Mozilla Public
-- License, v. 2.0. If a copy of the MPL was not distributed with this file,
-- You can obtain one at https://mozilla.org/MPL/2.0/.
-- Counts
--
-- Counts and sizes are maintained for each device, folder, type, flag bits
-- combination.
CREATE TABLE IF NOT EXISTS counts (
folder_idx INTEGER NOT NULL,
device_idx INTEGER NOT NULL,
type INTEGER NOT NULL,
local_flags INTEGER NOT NULL,
count INTEGER NOT NULL,
size INTEGER NOT NULL,
deleted INTEGER NOT NULL, -- boolean
PRIMARY KEY(folder_idx, device_idx, type, local_flags, deleted),
FOREIGN KEY(device_idx) REFERENCES devices(idx) ON DELETE CASCADE,
FOREIGN KEY(folder_idx) REFERENCES folders(idx) ON DELETE CASCADE
) STRICT, WITHOUT ROWID
;
--- Maintain counts when files are added and removed using triggers
CREATE TRIGGER IF NOT EXISTS counts_insert AFTER INSERT ON files
BEGIN
INSERT INTO counts (folder_idx, device_idx, type, local_flags, count, size, deleted)
VALUES (NEW.folder_idx, NEW.device_idx, NEW.type, NEW.local_flags, 1, NEW.size, NEW.deleted)
ON CONFLICT DO UPDATE SET count = count + 1, size = size + NEW.size;
END
;
CREATE TRIGGER IF NOT EXISTS counts_delete AFTER DELETE ON files
BEGIN
UPDATE counts SET count = count - 1, size = size - OLD.size
WHERE folder_idx = OLD.folder_idx AND device_idx = OLD.device_idx AND type = OLD.type AND local_flags = OLD.local_flags AND deleted = OLD.deleted;
END
;
CREATE TRIGGER IF NOT EXISTS counts_update AFTER UPDATE OF local_flags ON files
WHEN NEW.local_flags != OLD.local_flags
BEGIN
INSERT INTO counts (folder_idx, device_idx, type, local_flags, count, size, deleted)
VALUES (NEW.folder_idx, NEW.device_idx, NEW.type, NEW.local_flags, 1, NEW.size, NEW.deleted)
ON CONFLICT DO UPDATE SET count = count + 1, size = size + NEW.size;
UPDATE counts SET count = count - 1, size = size - OLD.size
WHERE folder_idx = OLD.folder_idx AND device_idx = OLD.device_idx AND type = OLD.type AND local_flags = OLD.local_flags AND deleted = OLD.deleted;
END
;
DROP TRIGGER IF EXISTS counts_update_add -- tmp migration
;
DROP TRIGGER IF EXISTS counts_update_del -- tmp migration
;