Files
obsidian-livesync/src/modules/core/ModuleReplicator.ts
vorotamoroz 9d304b3233 v0.24.2
Rewritten

-   Hidden File Sync is now respects the file changes on the storage. Not simply comparing modified times.
    -   This makes hidden file sync more robust and reliable.

Fixed

-   `Scan hidden files before replication` is now configurable again.
-   Some unexpected errors are now handled more gracefully.
-   Meaningless event passing during boot sequence is now prevented.
-   Error handling for non-existing files has been fixed.
-   Hidden files will not be batched to avoid the potential error.
    -   This behaviour had been causing the error in the previous versions in specific situations.
-   The log which checking automatic conflict resolution is now in verbose level.
-   Replication log (skipping non-targetting files) shows the correct information.
-   The dialogue that asking enabling optional feature during `Rebuild Everything` now prevents to show the `overwrite` option.
    -   The rebuilding device is the first, meaningless.
-   Files with different modified time but identical content are no longer processed repeatedly.
-   Some unexpected errors which caused after terminating plug-in are now avoided.
-

Improved

-   JSON files are now more transferred efficiently.
    -   Now the JSON files are transferred in more fine chunks, which makes the transfer more efficient.
2024-11-21 11:40:15 +00:00

417 lines
19 KiB
TypeScript

import { fireAndForget, yieldMicrotask } from "octagonal-wheels/promises";
import type { LiveSyncLocalDB } from "../../lib/src/pouchdb/LiveSyncLocalDB";
import { AbstractModule } from "../AbstractModule";
import type { ICoreModule } from "../ModuleTypes";
import { Logger, LOG_LEVEL_NOTICE, LOG_LEVEL_INFO, LOG_LEVEL_VERBOSE } from "octagonal-wheels/common/logger";
import { isLockAcquired, shareRunningResult, skipIfDuplicated } from "octagonal-wheels/concurrency/lock";
import { purgeUnreferencedChunks, balanceChunkPurgedDBs } from "../../lib/src/pouchdb/utils_couchdb";
import { LiveSyncCouchDBReplicator } from "../../lib/src/replication/couchdb/LiveSyncReplicator";
import { throttle } from "octagonal-wheels/function";
import { arrayToChunkedArray } from "octagonal-wheels/collection";
import {
SYNCINFO_ID,
VER,
type EntryBody,
type EntryDoc,
type LoadedEntry,
type MetaEntry,
} from "../../lib/src/common/types";
import { QueueProcessor } from "octagonal-wheels/concurrency/processor";
import { getPath, isChunk, isValidPath, scheduleTask } from "../../common/utils";
import { sendValue } from "octagonal-wheels/messagepassing/signal";
import { isAnyNote } from "../../lib/src/common/utils";
import { EVENT_FILE_SAVED, eventHub } from "../../common/events";
import type { LiveSyncAbstractReplicator } from "../../lib/src/replication/LiveSyncAbstractReplicator";
export class ModuleReplicator extends AbstractModule implements ICoreModule {
$everyOnloadAfterLoadSettings(): Promise<boolean> {
eventHub.onEvent(EVENT_FILE_SAVED, () => {
if (this.settings.syncOnSave && !this.core.$$isSuspended()) {
scheduleTask("perform-replicate-after-save", 250, () => this.core.$$waitForReplicationOnce());
}
});
return Promise.resolve(true);
}
async setReplicator() {
const replicator = await this.core.$anyNewReplicator();
if (!replicator) {
this._log("No replicator is available, this is the fatal error.", LOG_LEVEL_NOTICE);
return false;
}
this.core.replicator = replicator;
await yieldMicrotask();
return true;
}
$$getReplicator(): LiveSyncAbstractReplicator {
return this.core.replicator;
}
$everyOnInitializeDatabase(db: LiveSyncLocalDB): Promise<boolean> {
return this.setReplicator();
}
$everyOnResetDatabase(db: LiveSyncLocalDB): Promise<boolean> {
return this.setReplicator();
}
async $everyBeforeReplicate(showMessage: boolean): Promise<boolean> {
await this.loadQueuedFiles();
return true;
}
async $$replicate(showMessage: boolean = false): Promise<boolean | void> {
//--?
if (!this.core.$$isReady()) return;
if (isLockAcquired("cleanup")) {
Logger("Database cleaning up is in process. replication has been cancelled", LOG_LEVEL_NOTICE);
return;
}
if (this.settings.versionUpFlash != "") {
Logger("Open settings and check message, please. replication has been cancelled.", LOG_LEVEL_NOTICE);
return;
}
if (!(await this.core.$everyCommitPendingFileEvent())) {
Logger("Some file events are pending. Replication has been cancelled.", LOG_LEVEL_NOTICE);
return false;
}
if (!(await this.core.$everyBeforeReplicate(showMessage))) {
Logger(`Replication has been cancelled by some module failure`, LOG_LEVEL_NOTICE);
return false;
}
//<-- Here could be an module.
const ret = await this.core.replicator.openReplication(this.settings, false, showMessage, false);
if (!ret) {
if (this.core.replicator.tweakSettingsMismatched) {
await this.core.$$askResolvingMismatchedTweaks();
} else {
if (this.core.replicator?.remoteLockedAndDeviceNotAccepted) {
if (this.core.replicator.remoteCleaned && this.settings.useIndexedDBAdapter) {
Logger(
`The remote database has been cleaned.`,
showMessage ? LOG_LEVEL_NOTICE : LOG_LEVEL_INFO
);
await skipIfDuplicated("cleanup", async () => {
const count = await purgeUnreferencedChunks(this.localDatabase.localDatabase, true);
const message = `The remote database has been cleaned up.
To synchronize, this device must be also cleaned up. ${count} chunk(s) will be erased from this device.
However, If there are many chunks to be deleted, maybe fetching again is faster.
We will lose the history of this device if we fetch the remote database again.
Even if you choose to clean up, you will see this option again if you exit Obsidian and then synchronise again.`;
const CHOICE_FETCH = "Fetch again";
const CHOICE_CLEAN = "Cleanup";
const CHOICE_DISMISS = "Dismiss";
const ret = await this.core.confirm.confirmWithMessage(
"Cleaned",
message,
[CHOICE_FETCH, CHOICE_CLEAN, CHOICE_DISMISS],
CHOICE_DISMISS,
30
);
if (ret == CHOICE_FETCH) {
await this.core.rebuilder.$performRebuildDB("localOnly");
}
if (ret == CHOICE_CLEAN) {
const replicator = this.core.$$getReplicator();
if (!(replicator instanceof LiveSyncCouchDBReplicator)) return;
const remoteDB = await replicator.connectRemoteCouchDBWithSetting(
this.settings,
this.core.$$isMobile(),
true
);
if (typeof remoteDB == "string") {
Logger(remoteDB, LOG_LEVEL_NOTICE);
return false;
}
await purgeUnreferencedChunks(this.localDatabase.localDatabase, false);
this.localDatabase.hashCaches.clear();
// Perform the synchronisation once.
if (
await this.core.replicator.openReplication(this.settings, false, showMessage, true)
) {
await balanceChunkPurgedDBs(this.localDatabase.localDatabase, remoteDB.db);
await purgeUnreferencedChunks(this.localDatabase.localDatabase, false);
this.localDatabase.hashCaches.clear();
await this.core.$$getReplicator().markRemoteResolved(this.settings);
Logger(
"The local database has been cleaned up.",
showMessage ? LOG_LEVEL_NOTICE : LOG_LEVEL_INFO
);
} else {
Logger(
"Replication has been cancelled. Please try it again.",
showMessage ? LOG_LEVEL_NOTICE : LOG_LEVEL_INFO
);
}
}
});
} else {
const message = `
The remote database has been rebuilt.
To synchronize, this device must fetch everything again once.
Or if you are sure know what had been happened, we can unlock the database from the setting dialog.
`;
const CHOICE_FETCH = "Fetch again";
const CHOICE_DISMISS = "Dismiss";
const ret = await this.core.confirm.confirmWithMessage(
"Locked",
message,
[CHOICE_FETCH, CHOICE_DISMISS],
CHOICE_DISMISS,
10
);
if (ret == CHOICE_FETCH) {
const CHOICE_RESTART = "Restart";
const CHOICE_WITHOUT_RESTART = "Without restart";
if (
(await this.core.confirm.askSelectStringDialogue(
"Self-hosted LiveSync restarts Obsidian to fetch everything safely. However, you can do it without restarting. Please choose one.",
[CHOICE_RESTART, CHOICE_WITHOUT_RESTART],
{
title: "Fetch again",
defaultAction: CHOICE_RESTART,
timeout: 30,
}
)) == CHOICE_RESTART
) {
await this.core.rebuilder.scheduleFetch();
// await this.core.$$scheduleAppReload();
return;
} else {
await this.core.rebuilder.$performRebuildDB("localOnly");
}
}
}
}
}
}
return ret;
}
$$parseReplicationResult(docs: Array<PouchDB.Core.ExistingDocument<EntryDoc>>): void {
if (this.settings.suspendParseReplicationResult && !this.replicationResultProcessor.isSuspended) {
this.replicationResultProcessor.suspend();
}
this.replicationResultProcessor.enqueueAll(docs);
if (!this.settings.suspendParseReplicationResult && this.replicationResultProcessor.isSuspended) {
this.replicationResultProcessor.resume();
}
}
_saveQueuedFiles = throttle(() => {
const saveData = this.replicationResultProcessor._queue
.filter((e) => e !== undefined && e !== null)
.map((e) => e?._id ?? ("" as string)) as string[];
const kvDBKey = "queued-files";
// localStorage.setItem(lsKey, saveData);
fireAndForget(() => this.core.kvDB.set(kvDBKey, saveData));
}, 100);
saveQueuedFiles() {
this._saveQueuedFiles();
}
async loadQueuedFiles() {
if (this.settings.suspendParseReplicationResult) return;
if (!this.settings.isConfigured) return;
const kvDBKey = "queued-files";
// const ids = [...new Set(JSON.parse(localStorage.getItem(lsKey) || "[]"))] as string[];
const ids = [...new Set((await this.core.kvDB.get<string[]>(kvDBKey)) ?? [])];
const batchSize = 100;
const chunkedIds = arrayToChunkedArray(ids, batchSize);
for await (const idsBatch of chunkedIds) {
const ret = await this.localDatabase.allDocsRaw<EntryDoc>({
keys: idsBatch,
include_docs: true,
limit: 100,
});
const docs = ret.rows.filter((e) => e.doc).map((e) => e.doc) as PouchDB.Core.ExistingDocument<EntryDoc>[];
const errors = ret.rows.filter((e) => !e.doc && !e.value.deleted);
if (errors.length > 0) {
Logger("Some queued processes were not resurrected");
Logger(JSON.stringify(errors), LOG_LEVEL_VERBOSE);
}
this.replicationResultProcessor.enqueueAll(docs);
await this.replicationResultProcessor.waitForAllProcessed();
}
}
replicationResultProcessor = new QueueProcessor(
async (docs: PouchDB.Core.ExistingDocument<EntryDoc>[]) => {
if (this.settings.suspendParseReplicationResult) return;
const change = docs[0];
if (!change) return;
if (isChunk(change._id)) {
// SendSignal?
// this.parseIncomingChunk(change);
sendValue(`leaf-${change._id}`, change);
return;
}
if (await this.core.$anyModuleParsedReplicationResultItem(change)) return;
// any addon needs this item?
// for (const proc of this.core.addOns) {
// if (await proc.parseReplicationResultItem(change)) {
// return;
// }
// }
if (change.type == "versioninfo") {
if (change.version > VER) {
this.core.replicator.closeReplication();
Logger(
`Remote database updated to incompatible version. update your Self-hosted LiveSync plugin.`,
LOG_LEVEL_NOTICE
);
}
return;
}
if (
change._id == SYNCINFO_ID || // Synchronisation information data
change._id.startsWith("_design") //design document
) {
return;
}
if (isAnyNote(change)) {
const docPath = getPath(change);
if (!(await this.core.$$isTargetFile(docPath))) {
Logger(`Skipped: ${docPath}`, LOG_LEVEL_VERBOSE);
return;
}
if (this.databaseQueuedProcessor._isSuspended) {
Logger(`Processing scheduled: ${docPath}`, LOG_LEVEL_INFO);
}
const size = change.size;
if (this.core.$$isFileSizeExceeded(size)) {
Logger(
`Processing ${docPath} has been skipped due to file size exceeding the limit`,
LOG_LEVEL_NOTICE
);
return;
}
this.databaseQueuedProcessor.enqueue(change);
}
return;
},
{
batchSize: 1,
suspended: true,
concurrentLimit: 100,
delay: 0,
totalRemainingReactiveSource: this.core.replicationResultCount,
}
)
.replaceEnqueueProcessor((queue, newItem) => {
const q = queue.filter((e) => e._id != newItem._id);
return [...q, newItem];
})
.startPipeline()
.onUpdateProgress(() => {
this.saveQueuedFiles();
});
databaseQueuedProcessor = new QueueProcessor(
async (docs: EntryBody[]) => {
const dbDoc = docs[0] as LoadedEntry; // It has no `data`
const path = getPath(dbDoc);
// If `Read chunks online` is disabled, chunks should be transferred before here.
// However, in some cases, chunks are after that. So, if missing chunks exist, we have to wait for them.
const doc = await this.localDatabase.getDBEntryFromMeta({ ...dbDoc }, {}, false, true, true);
if (!doc) {
Logger(
`Something went wrong while gathering content of ${path} (${dbDoc._id.substring(0, 8)}, ${dbDoc._rev?.substring(0, 10)}) `,
LOG_LEVEL_NOTICE
);
return;
}
if (await this.core.$anyProcessOptionalSyncFiles(dbDoc)) {
// Already processed
} else if (isValidPath(getPath(doc))) {
this.storageApplyingProcessor.enqueue(doc as MetaEntry);
} else {
Logger(`Skipped: ${path} (${doc._id.substring(0, 8)})`, LOG_LEVEL_VERBOSE);
}
return;
},
{
suspended: true,
batchSize: 1,
concurrentLimit: 10,
yieldThreshold: 1,
delay: 0,
totalRemainingReactiveSource: this.core.databaseQueueCount,
}
)
.replaceEnqueueProcessor((queue, newItem) => {
const q = queue.filter((e) => e._id != newItem._id);
return [...q, newItem];
})
.startPipeline();
storageApplyingProcessor = new QueueProcessor(
async (docs: MetaEntry[]) => {
const entry = docs[0];
await this.core.$anyProcessReplicatedDoc(entry);
return;
},
{
suspended: true,
batchSize: 1,
concurrentLimit: 6,
yieldThreshold: 1,
delay: 0,
totalRemainingReactiveSource: this.core.storageApplyingCount,
}
)
.replaceEnqueueProcessor((queue, newItem) => {
const q = queue.filter((e) => e._id != newItem._id);
return [...q, newItem];
})
.startPipeline();
$everyBeforeSuspendProcess(): Promise<boolean> {
this.core.replicator.closeReplication();
return Promise.resolve(true);
}
async $$replicateAllToServer(
showingNotice: boolean = false,
sendChunksInBulkDisabled: boolean = false
): Promise<boolean> {
if (!this.core.$$isReady()) return false;
if (!(await this.core.$everyBeforeReplicate(showingNotice))) {
Logger(`Replication has been cancelled by some module failure`, LOG_LEVEL_NOTICE);
return false;
}
if (!sendChunksInBulkDisabled) {
if (this.core.replicator instanceof LiveSyncCouchDBReplicator) {
if (
(await this.core.confirm.askYesNoDialog("Do you want to send all chunks before replication?", {
defaultOption: "No",
timeout: 20,
})) == "yes"
) {
await this.core.replicator.sendChunks(this.core.settings, undefined, true, 0);
}
}
}
const ret = await this.core.replicator.replicateAllToServer(this.settings, showingNotice);
if (ret) return true;
const checkResult = await this.core.$anyAfterConnectCheckFailed();
if (checkResult == "CHECKAGAIN") return await this.core.$$replicateAllToServer(showingNotice);
return !checkResult;
}
async $$replicateAllFromServer(showingNotice: boolean = false): Promise<boolean> {
if (!this.core.$$isReady()) return false;
const ret = await this.core.replicator.replicateAllFromServer(this.settings, showingNotice);
if (ret) return true;
const checkResult = await this.core.$anyAfterConnectCheckFailed();
if (checkResult == "CHECKAGAIN") return await this.core.$$replicateAllFromServer(showingNotice);
return !checkResult;
}
async $$waitForReplicationOnce(): Promise<boolean | void> {
return await shareRunningResult(`replication`, () => this.core.$$replicate());
}
}