Implement SyncYomi by Bartuzen · Pull Request #1813 · Suwayomi/Suwayomi-Server

Bartuzen · 2025-12-10T19:08:56Z

This PR adds SyncYomi support to Suwayomi. Most of the code is taken directly from TachiyomiSY, and modified to work with Suwayomi.

I only tested syncing between a Suwayomi instance and TachiyomiSY. Syncing multiple Suwayomi instances should work, but I didn't test it.

TODO

Return a proper result from sync endpoint
Add PostgreSQL support
Add periodic sync
Add sync triggers
Add ability to select what to sync
Don’t allow two syncs at the same time
Sync before library update

Caio99BR · 2025-12-19T01:27:13Z

Any update?

Syer10 · 2025-12-19T01:28:34Z

If you check the commits tab you will see there have been many updates. This is progressing at a good pace, hopefully it will be ready soon.

Bartuzen · 2025-12-19T17:52:39Z

I don't use sync triggers and I'm too lazy to implement them so I'm marking the PR as ready.

server/src/main/kotlin/suwayomi/tachidesk/global/impl/sync/SyncManager.kt

server/src/main/kotlin/suwayomi/tachidesk/global/impl/sync/SyncYomiSyncService.kt

- Move entire sync operation into a single transaction - Stop loading all manga to memory

server/src/main/kotlin/suwayomi/tachidesk/manga/impl/update/Updater.kt

server/src/main/kotlin/suwayomi/tachidesk/global/impl/sync/SyncManager.kt

This reverts commit bee8d21.

server/src/main/kotlin/suwayomi/tachidesk/global/impl/sync/SyncYomiSyncService.kt

server/src/main/kotlin/suwayomi/tachidesk/global/impl/sync/SyncManager.kt

RalkeyOfficial · 2026-01-08T21:25:16Z

Curious 3rd party here, how does Suwayomi handle a 'loop' where a synced manga has a source which points back to itself through the Suwayomi extension?

As far as I know this was never a possible issue to consider with SyncYomi's / TachiyomiSY's original implementation (since most code is copied from TachiyomiSY according to Bartuzen).

schroda · 2026-01-13T19:59:27Z

server/server-config/src/main/kotlin/suwayomi/tachidesk/server/ServerConfig.kt

+        privacySafe = false,
+    )
+
+    val syncDataManga: MutableStateFlow<Boolean> by BooleanSetting(


Is it intentional that the rest of the new settings do not have the syncYomi prefix?

Yes, because other sync services may be implemented in the future. For example, TachiyomiSY also supports syncing to Google Drive.
syncYomi prefixed options apply only to SyncYomi, while sync prefixed options would apply regardless of the sync service.

server/server-config/src/main/kotlin/suwayomi/tachidesk/server/ServerConfig.kt

server/src/main/kotlin/suwayomi/tachidesk/global/impl/sync/SyncManager.kt

schroda · 2026-01-13T20:28:31Z

server/src/main/kotlin/suwayomi/tachidesk/global/impl/sync/SyncManager.kt

+    }
+
+    private fun updateNonFavorites(nonFavorites: List<BackupManga>) {
+        nonFavorites.forEach { nonFavorite ->


Wouldn't a single query and a batch update be better here?

Same as other one. See this discussion.

server/src/main/kotlin/suwayomi/tachidesk/global/impl/sync/SyncYomiSyncService.kt

schroda · 2026-01-13T20:46:52Z

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/SyncMutation.kt

+    )
+
+    @RequireAuth
+    fun startSync(input: StartSyncInput): StartSyncPayload {


Should it be possible to stop the sync?

I was planning to implement that, but backup and restore aren't stoppable, and those are the tasks that actually take a long time. So I decided not to implement it.

server/src/main/kotlin/suwayomi/tachidesk/graphql/subscriptions/SyncSubscription.kt

schroda · 2026-01-13T21:11:08Z

server/src/main/kotlin/suwayomi/tachidesk/manga/impl/update/Updater.kt

    ) {
-        saveLastUpdateTimestamp()
+        scope.launch {
+            SyncManager.ensureSync()


What is the benefit of starting a sync before an update?

I'm not exactly sure. That's how it's implemented in TachiyomiSY, so I copied it.

What is the benefit of starting a sync before an update?

At the time I implemented that because it's better to sync changes first that way everything is "up to date" before triggering an update, so there is no mismatch etc but I think it's not really needed? I haven't really tested it without it but at the time there must have been some bug that made me implement it that way.

Breezyslasher · 2026-02-19T04:41:33Z

Any updates on when this will be merged into the app?

Bartuzen added 11 commits December 10, 2025 21:50

Implement SyncYomi

56de3cc

Add ability to select what to sync

878ee96

Properly fix default category bug

fde921d

Add periodic sync

1d41d2c

Add PostgreSQL support

60873f8

Deschedule previous task

c1b9995

Check if SyncYomi is enabled in syncData function

2b4dd34

Don't allow multiple syncs at the same time

57dcd41

Convert SyncYomiSyncService to object

3364d53

Make startSync non-suspend

5c0f714

Return a result from startSync

18816b0

Sync before library update

00e265e

Bartuzen marked this pull request as ready for review December 19, 2025 17:52

Syer10 requested changes Dec 19, 2025

View reviewed changes

Bartuzen added 2 commits December 20, 2025 19:15

Merge branch 'master' into syncyomi

8a1c7c2

Improvements

eeeb3b3

Bartuzen force-pushed the syncyomi branch from 45ee6eb to eeeb3b3 Compare December 20, 2025 16:35

Bartuzen added 4 commits December 20, 2025 19:45

Use NetworkHelper client

17af9b6

Lint

a4bfecc

Use measureTime

4558ddf

Database improvements

bee8d21

- Move entire sync operation into a single transaction - Stop loading all manga to memory

Bartuzen requested a review from Syer10 December 20, 2025 20:26

Syer10 requested changes Dec 20, 2025

View reviewed changes

server/src/main/kotlin/suwayomi/tachidesk/manga/impl/update/Updater.kt Outdated Show resolved Hide resolved

server/src/main/kotlin/suwayomi/tachidesk/global/impl/sync/SyncManager.kt Outdated Show resolved Hide resolved

Bartuzen added 3 commits December 21, 2025 19:31

Revert "Database improvements"

af8c0e9

This reverts commit bee8d21.

Actual database improvements

afb4f9a

Remove runBlocking

e64020c

Bartuzen requested a review from Syer10 December 21, 2025 17:20

Syer10 reviewed Dec 22, 2025

View reviewed changes

server/src/main/kotlin/suwayomi/tachidesk/global/impl/sync/SyncYomiSyncService.kt Outdated Show resolved Hide resolved

Bartuzen added 4 commits December 22, 2025 13:29

Update timeout code

efd5b31

Improve PostgreSQL query

c1a6e1c

Create lastSyncState variable

7684681

Create lastSyncStatus query

fe5b473

Bartuzen force-pushed the syncyomi branch from 54bb664 to fe5b473 Compare December 25, 2025 18:07

Bartuzen requested a review from Syer10 December 25, 2025 18:16

Syer10 requested changes Dec 26, 2025

View reviewed changes

server/src/main/kotlin/suwayomi/tachidesk/global/impl/sync/SyncManager.kt Outdated Show resolved Hide resolved

Bartuzen added 3 commits December 26, 2025 12:02

Convert lastSyncState to StateFlow

c91f827

Create lastSyncStatusChange subscription

1874d22

Replace backupRestoreStatus with backupRestoreId

c77c0d4

Bartuzen requested a review from Syer10 December 26, 2025 19:57

Bartuzen added 2 commits January 3, 2026 14:11

Add startDate and endDate

0b4ae88

Add logs for sync start and end

fe8d271

Bartuzen marked this pull request as draft January 4, 2026 00:03

Bartuzen added 2 commits January 6, 2026 16:35

Handle all errors in syncData

fa64d47

Change category restore function to match Mihon's behavior

ae9f4fe

Bartuzen marked this pull request as ready for review January 6, 2026 20:37

Fix comment

79a2f99

schroda reviewed Jan 13, 2026

View reviewed changes

Bartuzen added 7 commits January 14, 2026 12:03

Remove duplicate BackupMangaHandler.backup call

3f40edb

Remove duplicated log

11a66f6

Rename subscription to syncStatusChanged

bdf2d2e

Use same flags for restoring

03b92af

Update syncInterval config to use DurationSetting

4638ae4

Update sync scheduling logic

1f9f277

Reorder conditions to reduce database calls

28511f8

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Breezyslasher commented Feb 19, 2026

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Bartuzen commented Dec 10, 2025 •

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