Fix syncing when network latency is present (#4)
* WIP * Add debug * Dedupe inserts * Add deterministic ordering * Fix whitespaces * Update insta * Add integration test script * Rename * Add test * Working for non-deletes * omg it mostly works for deletes * Isdeleted fix * remove created dates * update api * Take document id * No max attempt * works * Use string uuids * . * working!!!! (hopefully) * Improve bundling * Add module * lint * . * lint * Fix CI * use toolchain * clean up * Add useSlowFileEvents * Delete fuzz * Fix CI * use docker * fix script * clean up * Clean up * change node version * Build docker image on every commit * fix ci * 1 db per vault * Add scritps folder * Bump versions * Lint * . * Fix tests for real * Style * . * try * Consistent ordering * Fix tests * hmm * . * Clean up diff * Fixes * . * Fix version bump * . * . * .
This commit is contained in:
GitHub
parent
bcf48c428d
commit
8b8f1d91d9
91 changed files with 2252 additions and 1586 deletions
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@ -1,15 +1,17 @@
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import type { Database, RelativePath } from "../persistence/database";
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import type { SyncService } from "src/services/sync-service";
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import type { Logger } from "src/tracing/logger";
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import type { SyncHistory } from "src/tracing/sync-history";
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import type { SyncService } from "../services/sync-service";
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import type { Logger } from "../tracing/logger";
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import type { SyncHistory } from "../tracing/sync-history";
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import PQueue from "p-queue";
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import { hash } from "src/utils/hash";
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import type { components } from "src/services/types";
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import type { Settings } from "src/persistence/settings";
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import type { FileOperations } from "src/file-operations/file-operations";
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import { findMatchingFileBasedOnHash } from "src/utils/find-matching-file-based-on-hash";
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import { hash } from "../utils/hash";
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import { v4 as uuidv4 } from "uuid";
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import type { components } from "../services/types";
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import type { Settings } from "../persistence/settings";
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import type { FileOperations } from "../file-operations/file-operations";
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import { findMatchingFile } from "../utils/find-matching-file";
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import { UnrestrictedSyncer } from "./unrestricted-syncer";
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import { FileNotFoundError } from "../file-operations/safe-filesystem-operations";
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import { createPromise } from "../utils/create-promise";
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export class Syncer {
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private readonly remainingOperationsListeners: ((
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@ -18,17 +20,15 @@ export class Syncer {
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private readonly syncQueue: PQueue;
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private runningScheduleSyncForOfflineChanges: Promise<void> | undefined =
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undefined;
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private runningApplyRemoteChangesLocally: Promise<void> | undefined =
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undefined;
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private runningScheduleSyncForOfflineChanges: Promise<void> | undefined;
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private runningApplyRemoteChangesLocally: Promise<void> | undefined;
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private readonly internalSyncer: UnrestrictedSyncer;
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public constructor(
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private readonly logger: Logger,
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private readonly database: Database,
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private readonly settings: Settings,
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settings: Settings,
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private readonly syncService: SyncService,
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private readonly operations: FileOperations,
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history: SyncHistory
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@ -45,7 +45,9 @@ export class Syncer {
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});
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this.syncQueue.on("active", () => {
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this.emitRemainingOperationsChange(this.syncQueue.size);
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this.remainingOperationsListeners.forEach((listener) => {
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listener(this.syncQueue.size);
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});
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});
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this.internalSyncer = new UnrestrictedSyncer(
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@ -65,48 +67,131 @@ export class Syncer {
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}
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public async syncLocallyCreatedFile(
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relativePath: RelativePath,
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updateTime: Date
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relativePath: RelativePath
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): Promise<void> {
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await this.syncQueue.add(async () =>
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this.internalSyncer.unrestrictedSyncLocallyCreatedFile(
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relativePath,
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updateTime
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)
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);
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}
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if (
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this.database.getLatestDocumentByRelativePath(relativePath)
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?.isDeleted === false
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) {
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this.logger.debug(
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`Document ${relativePath} already exists in the database, skipping`
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);
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return;
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}
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public async syncLocallyUpdatedFile(args: {
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oldPath?: RelativePath;
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relativePath: RelativePath;
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updateTime: Date;
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}): Promise<void> {
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await this.syncQueue.add(async () =>
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this.internalSyncer.unrestrictedSyncLocallyUpdatedFile(args)
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);
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}
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const [promise, resolve, reject] = createPromise();
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public async waitForSyncQueue(): Promise<void> {
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return this.syncQueue.onEmpty();
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const document = this.database.createNewPendingDocument(
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uuidv4(),
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relativePath,
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promise
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);
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try {
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await this.syncQueue.add(async () =>
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this.internalSyncer.unrestrictedSyncLocallyCreatedFile(document)
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);
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resolve();
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} catch (e) {
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reject(e);
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} finally {
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this.database.removeDocumentPromise(promise);
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}
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}
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public async syncLocallyDeletedFile(
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relativePath: RelativePath
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): Promise<void> {
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await this.syncQueue.add(async () =>
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this.internalSyncer.unrestrictedSyncLocallyDeletedFile(relativePath)
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// We have to have a record of the delete in case there's an in-flight update for the same
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// document which finishes after the delete has succeeded and would introduce a phantom metadata record.
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this.database.delete(relativePath);
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const [promise, resolve, reject] = createPromise();
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const document = await this.database.getResolvedDocumentByRelativePath(
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relativePath,
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promise
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);
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try {
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await this.syncQueue.add(async () =>
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this.internalSyncer.unrestrictedSyncLocallyDeletedFile(document)
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);
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resolve();
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} catch (e) {
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reject(e);
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} finally {
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this.database.removeDocumentPromise(promise);
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}
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}
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public async scheduleSyncForOfflineChanges(): Promise<void> {
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if (!this.settings.getSettings().isSyncEnabled) {
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public async syncLocallyUpdatedFile({
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oldPath,
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relativePath
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}: {
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oldPath?: RelativePath;
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relativePath: RelativePath;
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}): Promise<void> {
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if (
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oldPath !== undefined &&
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(this.database.getLatestDocumentByRelativePath(relativePath) ===
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undefined ||
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this.database.getLatestDocumentByRelativePath(relativePath)
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?.isDeleted === true)
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) {
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if (oldPath === relativePath) {
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throw new Error(
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`Old path and new path are the same: ${oldPath}`
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);
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}
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this.database.move(oldPath, relativePath);
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}
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let document =
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this.database.getLatestDocumentByRelativePath(relativePath);
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if (document === undefined) {
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this.logger.debug(
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`Syncing is disabled, not uploading local changes`
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`Cannot find document ${relativePath} in the database, skipping`
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);
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return;
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}
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if (this.runningScheduleSyncForOfflineChanges != null) {
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if (document.isDeleted) {
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this.logger.debug(
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`Document ${relativePath} has been deleted locally, skipping`
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);
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return;
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}
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const [promise, resolve, reject] = createPromise();
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document = await this.database.getResolvedDocumentByRelativePath(
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relativePath,
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promise
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);
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try {
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await this.syncQueue.add(async () =>
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this.internalSyncer.unrestrictedSyncLocallyUpdatedFile({
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oldPath,
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document
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})
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);
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resolve();
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} catch (e) {
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reject(e);
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} finally {
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this.database.removeDocumentPromise(promise);
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}
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}
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public async scheduleSyncForOfflineChanges(): Promise<void> {
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if (this.runningScheduleSyncForOfflineChanges !== undefined) {
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this.logger.debug("Uploading local changes is already in progress");
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return this.runningScheduleSyncForOfflineChanges;
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}
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@ -127,13 +212,6 @@ export class Syncer {
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}
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public async applyRemoteChangesLocally(): Promise<void> {
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if (!this.settings.getSettings().isSyncEnabled) {
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this.logger.debug(
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`Syncing is disabled, not fetching remote changes`
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);
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return;
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}
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if (this.runningApplyRemoteChangesLocally != null) {
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this.logger.debug(
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"Applying remote changes locally is already in progress"
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@ -154,6 +232,10 @@ export class Syncer {
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}
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}
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public async waitForSyncQueue(): Promise<void> {
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return this.syncQueue.onEmpty();
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}
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public async reset(): Promise<void> {
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this.syncQueue.clear();
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await this.syncQueue.onEmpty();
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@ -163,115 +245,15 @@ export class Syncer {
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this.internalSyncer.reset();
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}
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private async syncRemotelyUpdatedFile(
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remoteVersion: components["schemas"]["DocumentVersionWithoutContent"]
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): Promise<void> {
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await this.syncQueue.add(async () =>
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this.internalSyncer.unrestrictedSyncRemotelyUpdatedFile(
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remoteVersion
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)
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);
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}
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private async internalScheduleSyncForOfflineChanges(): Promise<void> {
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const allLocalFiles = await this.operations.listAllFiles();
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// This includes renamed files for now
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let locallyPossiblyDeletedFiles = [
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...this.database.getDocuments().entries()
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].filter(([path, _]) => !allLocalFiles.includes(path));
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await Promise.all(
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allLocalFiles.map(async (relativePath) =>
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this.syncQueue.add(async () => {
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const metadata = this.database.getDocument(relativePath);
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if (metadata) {
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this.logger.debug(
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`Document ${relativePath} might have been updated locally, scheduling sync to validate and update it`
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);
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return this.internalSyncer.unrestrictedSyncLocallyUpdatedFile(
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{
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relativePath,
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updateTime:
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await this.operations.getModificationTime(
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relativePath
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)
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}
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);
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}
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// Perhaps the file has been moved. Let's check by looking at the deleted files
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const contentBytes =
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await this.operations.read(relativePath);
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const contentHash = hash(contentBytes);
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// todo: make this smarter so that offline files can be renamed & edited at the same time
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const originalFile = findMatchingFileBasedOnHash(
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contentHash,
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locallyPossiblyDeletedFiles
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);
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if (originalFile !== undefined) {
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// `originalFile` hasn't been deleted but it got moved instead
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locallyPossiblyDeletedFiles =
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locallyPossiblyDeletedFiles.filter(
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(item) => item[0] !== originalFile[0]
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);
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this.logger.debug(
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`Document '${originalFile[0]}' was not found under its current path in the database but was found under a different path (${relativePath}), scheduling sync to move it`
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);
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return this.internalSyncer.unrestrictedSyncLocallyUpdatedFile(
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{
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oldPath: originalFile[0],
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relativePath: relativePath,
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updateTime:
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await this.operations.getModificationTime(
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relativePath
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),
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optimisations: {
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contentBytes,
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contentHash
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}
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}
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);
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}
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this.logger.debug(
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`Document ${relativePath} not found in database, scheduling sync to create it`
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);
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return this.internalSyncer.unrestrictedSyncLocallyCreatedFile(
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relativePath,
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await this.operations.getModificationTime(relativePath)
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);
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})
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)
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);
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await Promise.all(
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locallyPossiblyDeletedFiles.map(async ([relativePath, _]) => {
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this.logger.debug(
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`Document ${relativePath} has been deleted locally, scheduling sync to delete it`
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);
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if (await this.operations.exists(relativePath)) {
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this.logger.debug(
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`Document ${relativePath} actually exists locally, skipping`
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);
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return Promise.resolve();
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}
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// We're outside of the pqueue, so we need to call the public wrapper
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return this.syncLocallyDeletedFile(relativePath);
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})
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);
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}
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private async internalApplyRemoteChangesLocally(): Promise<void> {
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const remote = await this.syncService.getAll(
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this.database.getLastSeenUpdateId()
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const remote = await this.syncQueue.add(async () =>
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this.syncService.getAll(this.database.getLastSeenUpdateId())
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);
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if (!remote) {
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throw new Error("Failed to fetch remote changes");
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}
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if (remote.latestDocuments.length === 0) {
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this.logger.debug("No remote changes to apply");
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return;
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|
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@ -280,9 +262,7 @@ export class Syncer {
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this.logger.info("Applying remote changes locally");
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await Promise.all(
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remote.latestDocuments.map(async (remoteDocument) =>
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this.syncRemotelyUpdatedFile(remoteDocument)
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)
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remote.latestDocuments.map(this.syncRemotelyUpdatedFile.bind(this))
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);
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const lastSeenUpdateId = this.database.getLastSeenUpdateId();
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@ -290,13 +270,124 @@ export class Syncer {
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lastSeenUpdateId === undefined ||
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remote.lastUpdateId > lastSeenUpdateId
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) {
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await this.database.setLastSeenUpdateId(remote.lastUpdateId);
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this.database.setLastSeenUpdateId(remote.lastUpdateId);
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}
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}
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private emitRemainingOperationsChange(remainingOperations: number): void {
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this.remainingOperationsListeners.forEach((listener) => {
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listener(remainingOperations);
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});
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private async syncRemotelyUpdatedFile(
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remoteVersion: components["schemas"]["DocumentVersionWithoutContent"]
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): Promise<void> {
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let document = this.database.getDocumentByDocumentId(
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remoteVersion.documentId
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);
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const [promise, resolve, reject] = createPromise();
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|
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if (document === undefined) {
|
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await this.syncQueue.add(async () =>
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this.internalSyncer.unrestrictedSyncRemotelyUpdatedFile(
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remoteVersion
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)
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);
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} else {
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document = await this.database.getResolvedDocumentByRelativePath(
|
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document.relativePath,
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promise
|
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);
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|
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try {
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await this.syncQueue.add(async () =>
|
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this.internalSyncer.unrestrictedSyncRemotelyUpdatedFile(
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remoteVersion,
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document
|
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)
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);
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|
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resolve();
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} catch (e) {
|
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reject(e);
|
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} finally {
|
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this.database.removeDocumentPromise(promise);
|
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}
|
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}
|
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}
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|
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private async internalScheduleSyncForOfflineChanges(): Promise<void> {
|
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const allLocalFiles = await this.operations.listAllFiles();
|
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|
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let locallyPossiblyDeletedFiles = [
|
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...this.database.resolvedDocuments
|
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].filter(({ relativePath }) => !allLocalFiles.includes(relativePath));
|
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|
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const updates = Promise.all(
|
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allLocalFiles.map(async (relativePath) => {
|
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if (
|
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this.database.getLatestDocumentByRelativePath(relativePath)
|
||||
?.metadata !== undefined
|
||||
) {
|
||||
this.logger.debug(
|
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`Document ${relativePath} might have been updated locally, scheduling sync to validate and update it`
|
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);
|
||||
|
||||
return this.syncLocallyUpdatedFile({
|
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relativePath
|
||||
});
|
||||
}
|
||||
|
||||
// Perhaps the file has been moved; let's check by looking at the deleted files
|
||||
const contentHash = await this.syncQueue.add(async () => {
|
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const contentBytes =
|
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await this.operations.read(relativePath); // this can throw FileNotFoundError
|
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return hash(contentBytes);
|
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});
|
||||
|
||||
if (contentHash == undefined) {
|
||||
// The file was deleted before we had a chance to read it, no need to sync it here
|
||||
return;
|
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}
|
||||
|
||||
const originalFile = findMatchingFile(
|
||||
contentHash,
|
||||
locallyPossiblyDeletedFiles
|
||||
);
|
||||
if (originalFile !== undefined) {
|
||||
// `originalFile` hasn't been deleted but it got moved instead
|
||||
locallyPossiblyDeletedFiles =
|
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locallyPossiblyDeletedFiles.filter(
|
||||
(item) =>
|
||||
item.relativePath !== originalFile.relativePath
|
||||
);
|
||||
|
||||
this.logger.debug(
|
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`Document '${originalFile.relativePath}' was not found under its current path in the database but was found under a different path (${relativePath}), scheduling sync to move it`
|
||||
);
|
||||
|
||||
// We're outside of the pqueue, so we need to call the public wrapper
|
||||
return this.syncLocallyUpdatedFile({
|
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oldPath: originalFile.relativePath,
|
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relativePath
|
||||
});
|
||||
}
|
||||
|
||||
this.logger.debug(
|
||||
`Document ${relativePath} not found in database, scheduling sync to create it`
|
||||
);
|
||||
// We're outside of the pqueue, so we need to call the public wrapper
|
||||
return this.syncLocallyCreatedFile(relativePath);
|
||||
})
|
||||
);
|
||||
|
||||
const deletes = Promise.all(
|
||||
locallyPossiblyDeletedFiles.map(async ({ relativePath }) => {
|
||||
this.logger.debug(
|
||||
`Document ${relativePath} has been deleted locally, scheduling sync to delete it`
|
||||
);
|
||||
|
||||
// We're outside of the pqueue, so we need to call the public wrapper
|
||||
return this.syncLocallyDeletedFile(relativePath);
|
||||
})
|
||||
);
|
||||
|
||||
await Promise.all([updates, deletes]);
|
||||
}
|
||||
}
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|
|
|
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|
|
@ -1,19 +1,24 @@
|
|||
import type { Database, RelativePath } from "../persistence/database";
|
||||
import type {
|
||||
Database,
|
||||
DocumentRecord,
|
||||
RelativePath
|
||||
} from "../persistence/database";
|
||||
|
||||
import type { SyncService } from "src/services/sync-service";
|
||||
import type { Logger } from "src/tracing/logger";
|
||||
import type { SyncHistory } from "src/tracing/sync-history";
|
||||
import { SyncSource, SyncStatus, SyncType } from "src/tracing/sync-history";
|
||||
import { hash } from "src/utils/hash";
|
||||
import type { components } from "src/services/types";
|
||||
import { deserialize } from "src/utils/deserialize";
|
||||
import type { Settings } from "src/persistence/settings";
|
||||
import type { FileOperations } from "src/file-operations/file-operations";
|
||||
import { FileNotFoundError } from "src/file-operations/safe-filesystem-operations";
|
||||
import { DocumentLocks } from "./document-locks";
|
||||
import type { SyncService } from "../services/sync-service";
|
||||
import type { Logger } from "../tracing/logger";
|
||||
import type { SyncHistory } from "../tracing/sync-history";
|
||||
import { SyncSource, SyncStatus, SyncType } from "../tracing/sync-history";
|
||||
import { EMPTY_HASH, hash } from "../utils/hash";
|
||||
import type { components } from "../services/types";
|
||||
import { deserialize } from "../utils/deserialize";
|
||||
import type { Settings } from "../persistence/settings";
|
||||
import type { FileOperations } from "../file-operations/file-operations";
|
||||
import { FileNotFoundError } from "../file-operations/safe-filesystem-operations";
|
||||
import { DocumentLocks } from "../file-operations/document-locks";
|
||||
import { createPromise } from "../utils/create-promise";
|
||||
|
||||
export class UnrestrictedSyncer {
|
||||
private readonly locks = new DocumentLocks();
|
||||
private readonly locks: DocumentLocks;
|
||||
|
||||
public constructor(
|
||||
private readonly logger: Logger,
|
||||
|
|
@ -22,507 +27,375 @@ export class UnrestrictedSyncer {
|
|||
private readonly syncService: SyncService,
|
||||
private readonly operations: FileOperations,
|
||||
private readonly history: SyncHistory
|
||||
) {}
|
||||
) {
|
||||
this.locks = new DocumentLocks(logger);
|
||||
}
|
||||
|
||||
public async unrestrictedSyncLocallyCreatedFile(
|
||||
relativePath: RelativePath,
|
||||
updateTime: Date,
|
||||
optimisations?: {
|
||||
contentBytes?: Uint8Array;
|
||||
contentHash?: string;
|
||||
}
|
||||
document: DocumentRecord
|
||||
): Promise<void> {
|
||||
await this.executeWhileHoldingFileLock(
|
||||
[relativePath],
|
||||
return this.executeSync(
|
||||
document.relativePath,
|
||||
SyncType.CREATE,
|
||||
SyncSource.PUSH,
|
||||
async () => {
|
||||
if (
|
||||
(await this.operations.getFileSize(relativePath)) / // this can throw FileNotFoundError
|
||||
1024 /
|
||||
1024 >
|
||||
this.settings.getSettings().maxFileSizeMB
|
||||
) {
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.ERROR,
|
||||
relativePath,
|
||||
message: `File size exceeds the maximum file size limit of ${
|
||||
this.settings.getSettings().maxFileSizeMB
|
||||
}MB`,
|
||||
type: SyncType.CREATE
|
||||
});
|
||||
return;
|
||||
}
|
||||
|
||||
const contentBytes =
|
||||
optimisations?.contentBytes ??
|
||||
(await this.operations.read(relativePath)); // this can throw FileNotFoundError
|
||||
let contentHash =
|
||||
optimisations?.contentHash ?? hash(contentBytes);
|
||||
|
||||
const localMetadata = this.database.getDocument(relativePath);
|
||||
if (localMetadata) {
|
||||
this.logger.debug(
|
||||
`Document metadata already exists for ${relativePath}, it must have been downloaded from the server`
|
||||
);
|
||||
|
||||
if (localMetadata.hash === contentHash) {
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.NO_OP,
|
||||
relativePath,
|
||||
message: `File hash matches with last synced version, no need to sync`,
|
||||
type: SyncType.UPDATE
|
||||
});
|
||||
return;
|
||||
}
|
||||
}
|
||||
const contentBytes = await this.operations.read(
|
||||
document.relativePath
|
||||
); // this can throw FileNotFoundError
|
||||
const contentHash = hash(contentBytes);
|
||||
|
||||
const response = await this.syncService.create({
|
||||
relativePath,
|
||||
contentBytes,
|
||||
createdDate: updateTime
|
||||
documentId: document.documentId,
|
||||
relativePath: document.relativePath,
|
||||
contentBytes
|
||||
});
|
||||
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.SUCCESS,
|
||||
source: SyncSource.PUSH,
|
||||
relativePath,
|
||||
relativePath: document.relativePath,
|
||||
message: `Successfully uploaded locally created file`,
|
||||
type: SyncType.CREATE
|
||||
});
|
||||
|
||||
// The response can't have a different relative path than the one we sent
|
||||
// because the relative path is the key when finding existing documents
|
||||
// when a create request is sent.
|
||||
this.database.updateDocumentMetadata(
|
||||
{
|
||||
parentVersionId: response.vaultUpdateId,
|
||||
hash: contentHash
|
||||
},
|
||||
document
|
||||
);
|
||||
|
||||
if (response.type === "MergingUpdate") {
|
||||
const responseBytes = deserialize(response.contentBase64);
|
||||
contentHash = hash(responseBytes);
|
||||
this.tryIncrementVaultUpdateId(response.vaultUpdateId);
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
await this.operations.write(
|
||||
relativePath,
|
||||
contentBytes,
|
||||
responseBytes
|
||||
);
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.SUCCESS,
|
||||
source: SyncSource.PULL,
|
||||
relativePath,
|
||||
message: `The file we created locally has already existed remotely, so we have merged them`,
|
||||
type: SyncType.UPDATE
|
||||
});
|
||||
}
|
||||
|
||||
await this.database.setDocument({
|
||||
documentId: response.documentId,
|
||||
relativePath: response.relativePath,
|
||||
parentVersionId: response.vaultUpdateId,
|
||||
hash: contentHash
|
||||
public async unrestrictedSyncLocallyDeletedFile(
|
||||
document: DocumentRecord
|
||||
): Promise<void> {
|
||||
await this.executeSync(
|
||||
document.relativePath,
|
||||
SyncType.DELETE,
|
||||
SyncSource.PUSH,
|
||||
async () => {
|
||||
const response = await this.syncService.delete({
|
||||
documentId: document.documentId,
|
||||
relativePath: document.relativePath
|
||||
});
|
||||
|
||||
await this.tryIncrementVaultUpdateId(response.vaultUpdateId);
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.SUCCESS,
|
||||
source: SyncSource.PUSH,
|
||||
relativePath: document.relativePath,
|
||||
message: `Successfully deleted locally deleted file on the remote server`,
|
||||
type: SyncType.DELETE
|
||||
});
|
||||
|
||||
this.database.updateDocumentMetadata(
|
||||
{
|
||||
parentVersionId: response.vaultUpdateId,
|
||||
hash: EMPTY_HASH
|
||||
},
|
||||
document
|
||||
);
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
public async unrestrictedSyncLocallyUpdatedFile({
|
||||
oldPath,
|
||||
relativePath,
|
||||
updateTime,
|
||||
optimisations
|
||||
document,
|
||||
force = false
|
||||
}: {
|
||||
oldPath?: RelativePath;
|
||||
relativePath: RelativePath;
|
||||
updateTime: Date;
|
||||
optimisations?: {
|
||||
contentBytes?: Uint8Array;
|
||||
contentHash?: string;
|
||||
};
|
||||
force?: boolean;
|
||||
document: DocumentRecord;
|
||||
}): Promise<void> {
|
||||
await this.executeWhileHoldingFileLock(
|
||||
[oldPath, relativePath].filter((path) => path !== undefined),
|
||||
await this.executeSync(
|
||||
document.relativePath,
|
||||
SyncType.UPDATE,
|
||||
SyncSource.PUSH,
|
||||
async () => {
|
||||
// Check the new path first in case the metadata has been already moved
|
||||
let localMetadata = this.database.getDocument(relativePath);
|
||||
let metadataPath = relativePath;
|
||||
const originalRelativePath = document.relativePath;
|
||||
|
||||
if (localMetadata === undefined && oldPath !== undefined) {
|
||||
localMetadata = this.database.getDocument(oldPath);
|
||||
metadataPath = oldPath;
|
||||
}
|
||||
|
||||
if (!localMetadata) {
|
||||
// It's fine, a subsequent sync operation must have dealt with this
|
||||
if (document.metadata === undefined || document.isDeleted) {
|
||||
this.logger.debug(
|
||||
`Document ${document.relativePath} has been already deleted, no need to update it`
|
||||
);
|
||||
return;
|
||||
}
|
||||
|
||||
if (
|
||||
(await this.operations.getFileSize(relativePath)) / // this can throw FileNotFoundError
|
||||
1024 /
|
||||
1024 >
|
||||
this.settings.getSettings().maxFileSizeMB
|
||||
) {
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.ERROR,
|
||||
relativePath,
|
||||
message: `File size exceeds the maximum file size limit of ${
|
||||
this.settings.getSettings().maxFileSizeMB
|
||||
}MB`,
|
||||
type: SyncType.CREATE
|
||||
});
|
||||
return;
|
||||
}
|
||||
|
||||
const contentBytes =
|
||||
optimisations?.contentBytes ??
|
||||
(await this.operations.read(relativePath)); // this can throw FileNotFoundError
|
||||
|
||||
let contentHash =
|
||||
optimisations?.contentHash ?? hash(contentBytes);
|
||||
const contentBytes = await this.operations.read(
|
||||
document.relativePath
|
||||
); // this can throw FileNotFoundError
|
||||
let contentHash = hash(contentBytes);
|
||||
|
||||
if (
|
||||
localMetadata.hash === contentHash &&
|
||||
oldPath === undefined
|
||||
document.metadata.hash === contentHash &&
|
||||
oldPath === undefined &&
|
||||
!force
|
||||
) {
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.NO_OP,
|
||||
relativePath,
|
||||
message: `File hash matches with last synced version, no need to sync`,
|
||||
type: SyncType.UPDATE
|
||||
});
|
||||
this.logger.debug(
|
||||
`File hash of ${document.relativePath} matches with last synced version and the path hasn't changed; no need to sync`
|
||||
);
|
||||
return;
|
||||
}
|
||||
|
||||
const response = await this.syncService.put({
|
||||
documentId: localMetadata.documentId,
|
||||
parentVersionId: localMetadata.parentVersionId,
|
||||
relativePath,
|
||||
contentBytes,
|
||||
createdDate: updateTime
|
||||
documentId: document.documentId,
|
||||
parentVersionId: document.metadata.parentVersionId,
|
||||
relativePath: document.relativePath,
|
||||
contentBytes
|
||||
});
|
||||
|
||||
// `document` is mutable and reflects the latest state in the local database
|
||||
// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
|
||||
if (document.isDeleted) {
|
||||
this.logger.info(
|
||||
`Document ${document.relativePath} has been deleted before we could finish updating it`
|
||||
);
|
||||
return;
|
||||
}
|
||||
|
||||
// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
|
||||
if (document.metadata === undefined) {
|
||||
throw new Error(
|
||||
`Document ${document.relativePath} no longer has metadata after updating it, this cannot happen`
|
||||
);
|
||||
}
|
||||
|
||||
if (
|
||||
document.metadata.parentVersionId >= response.vaultUpdateId
|
||||
) {
|
||||
this.logger.debug(
|
||||
`Document ${document.relativePath} is already more up to date than the fetched version`
|
||||
);
|
||||
return;
|
||||
}
|
||||
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.SUCCESS,
|
||||
source: SyncSource.PUSH,
|
||||
relativePath,
|
||||
relativePath: document.relativePath,
|
||||
message: `Successfully uploaded locally updated file to the remote server`,
|
||||
type: SyncType.UPDATE
|
||||
});
|
||||
|
||||
if (response.isDeleted) {
|
||||
await this.operations.remove(oldPath ?? relativePath);
|
||||
await this.database.removeDocument(oldPath ?? relativePath);
|
||||
await this.tryIncrementVaultUpdateId(
|
||||
response.vaultUpdateId
|
||||
);
|
||||
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.SUCCESS,
|
||||
source: SyncSource.PULL,
|
||||
relativePath,
|
||||
relativePath: document.relativePath,
|
||||
message:
|
||||
"The file we tried to update had been deleted remotely, therefore, we have deleted it locally",
|
||||
type: SyncType.DELETE
|
||||
});
|
||||
|
||||
this.database.delete(document.relativePath);
|
||||
this.database.updateDocumentMetadata(
|
||||
{
|
||||
parentVersionId: response.vaultUpdateId,
|
||||
hash: EMPTY_HASH
|
||||
},
|
||||
document
|
||||
);
|
||||
|
||||
await this.operations.delete(document.relativePath);
|
||||
|
||||
this.tryIncrementVaultUpdateId(response.vaultUpdateId);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
if (
|
||||
response.relativePath != relativePath &&
|
||||
response.relativePath != oldPath
|
||||
) {
|
||||
await this.locks.waitForDocumentLock(response.relativePath);
|
||||
let actualPath = document.relativePath;
|
||||
|
||||
if (response.relativePath != originalRelativePath) {
|
||||
actualPath = response.relativePath;
|
||||
await this.operations.move(
|
||||
document.relativePath,
|
||||
response.relativePath
|
||||
); // this can throw FileNotFoundError
|
||||
}
|
||||
|
||||
try {
|
||||
if (response.relativePath != relativePath) {
|
||||
// TODO: this can fail, that's bad
|
||||
await this.operations.move(
|
||||
// this can throw FileNotFoundError
|
||||
relativePath,
|
||||
response.relativePath,
|
||||
response.documentId
|
||||
);
|
||||
}
|
||||
|
||||
if (response.type === "MergingUpdate") {
|
||||
const responseBytes = deserialize(
|
||||
response.contentBase64
|
||||
);
|
||||
contentHash = hash(responseBytes);
|
||||
|
||||
await this.operations.write(
|
||||
response.relativePath,
|
||||
contentBytes,
|
||||
responseBytes
|
||||
);
|
||||
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.SUCCESS,
|
||||
source: SyncSource.PULL,
|
||||
relativePath,
|
||||
message: `The file we updated had been updated remotely, so we downloaded the merged version`,
|
||||
type: SyncType.UPDATE
|
||||
});
|
||||
}
|
||||
|
||||
if (metadataPath !== response.relativePath) {
|
||||
await this.database.updatePath(
|
||||
metadataPath,
|
||||
response.relativePath
|
||||
);
|
||||
}
|
||||
await this.database.setDocument({
|
||||
documentId: localMetadata.documentId,
|
||||
relativePath: response.relativePath,
|
||||
this.database.updateDocumentMetadata(
|
||||
{
|
||||
parentVersionId: response.vaultUpdateId,
|
||||
hash: contentHash
|
||||
});
|
||||
},
|
||||
document
|
||||
);
|
||||
|
||||
await this.tryIncrementVaultUpdateId(
|
||||
response.vaultUpdateId
|
||||
if (response.type === "MergingUpdate") {
|
||||
const responseBytes = deserialize(response.contentBase64);
|
||||
contentHash = hash(responseBytes);
|
||||
|
||||
await this.operations.write(
|
||||
actualPath,
|
||||
contentBytes,
|
||||
responseBytes
|
||||
);
|
||||
} finally {
|
||||
if (
|
||||
response.relativePath != relativePath &&
|
||||
response.relativePath != oldPath
|
||||
) {
|
||||
this.locks.unlockDocument(response.relativePath);
|
||||
}
|
||||
}
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
public async unrestrictedSyncLocallyDeletedFile(
|
||||
relativePath: RelativePath
|
||||
): Promise<void> {
|
||||
await this.executeWhileHoldingFileLock(
|
||||
[relativePath],
|
||||
SyncType.DELETE,
|
||||
SyncSource.PUSH,
|
||||
async () => {
|
||||
const localMetadata = this.database.getDocument(relativePath);
|
||||
if (!localMetadata) {
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.NO_OP,
|
||||
relativePath,
|
||||
message: `Locally deleted file hasn't been uploaded yet, so there's no need to delete it on the remote server`,
|
||||
type: SyncType.DELETE
|
||||
status: SyncStatus.SUCCESS,
|
||||
source: SyncSource.PULL,
|
||||
relativePath: document.relativePath,
|
||||
message: `The file we updated had been updated remotely, so we downloaded the merged version`,
|
||||
type: SyncType.UPDATE
|
||||
});
|
||||
return;
|
||||
}
|
||||
|
||||
await this.syncService.delete({
|
||||
documentId: localMetadata.documentId,
|
||||
relativePath,
|
||||
createdDate: new Date() // We got the event now, so it must have been deleted just now
|
||||
});
|
||||
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.SUCCESS,
|
||||
source: SyncSource.PUSH,
|
||||
relativePath,
|
||||
message: `Successfully deleted locally deleted file on the remote server`,
|
||||
type: SyncType.DELETE
|
||||
});
|
||||
|
||||
await this.database.removeDocument(relativePath);
|
||||
this.tryIncrementVaultUpdateId(response.vaultUpdateId);
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
public async unrestrictedSyncRemotelyUpdatedFile(
|
||||
remoteVersion: components["schemas"]["DocumentVersionWithoutContent"]
|
||||
remoteVersion: components["schemas"]["DocumentVersionWithoutContent"],
|
||||
document?: DocumentRecord
|
||||
): Promise<void> {
|
||||
await this.executeWhileHoldingFileLock(
|
||||
[remoteVersion.relativePath],
|
||||
await this.executeSync(
|
||||
remoteVersion.relativePath,
|
||||
SyncType.UPDATE,
|
||||
SyncSource.PULL,
|
||||
async () => {
|
||||
let localMetadata = this.database.getDocumentByDocumentId(
|
||||
remoteVersion.documentId
|
||||
);
|
||||
|
||||
if (
|
||||
localMetadata &&
|
||||
localMetadata[0] !== remoteVersion.relativePath
|
||||
) {
|
||||
await this.locks.waitForDocumentLock(localMetadata[0]);
|
||||
}
|
||||
// Waiting for the new lock might take a while so we need to fetch the database
|
||||
// entry again in case it's changed.
|
||||
localMetadata = this.database.getDocumentByDocumentId(
|
||||
remoteVersion.documentId
|
||||
);
|
||||
|
||||
if (!localMetadata) {
|
||||
if (remoteVersion.isDeleted) {
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.NO_OP,
|
||||
source: SyncSource.PULL,
|
||||
relativePath: remoteVersion.relativePath,
|
||||
message: `Remotely deleted file hasn't been synced yet, so there's no need to delete it locally`,
|
||||
type: SyncType.DELETE
|
||||
});
|
||||
if (document?.metadata !== undefined) {
|
||||
// If the file exists locally, let's pretend the user has updated it
|
||||
// and deal with remote update/deletion within `unrestrictedSyncLocallyUpdatedFile`
|
||||
if (
|
||||
document.metadata.parentVersionId >=
|
||||
remoteVersion.vaultUpdateId
|
||||
) {
|
||||
this.logger.debug(
|
||||
`Document ${remoteVersion.relativePath} is already more up to date than the fetched version`
|
||||
);
|
||||
return;
|
||||
}
|
||||
|
||||
const content = (
|
||||
await this.syncService.get({
|
||||
documentId: remoteVersion.documentId
|
||||
})
|
||||
).contentBase64;
|
||||
const contentBytes = deserialize(content);
|
||||
|
||||
await this.operations.create(
|
||||
remoteVersion.relativePath,
|
||||
contentBytes
|
||||
return this.unrestrictedSyncLocallyUpdatedFile({
|
||||
document,
|
||||
force: true
|
||||
});
|
||||
} else if (remoteVersion.isDeleted) {
|
||||
// Either the doc hasn't made it to us before and therefore we don't need to delete it,
|
||||
// or we already have it, in which case the preceeding if will deal with it
|
||||
this.logger.debug(
|
||||
`Document ${remoteVersion.relativePath} has been deleted remotely, no need to sync`
|
||||
);
|
||||
await this.database.setDocument({
|
||||
documentId: remoteVersion.documentId,
|
||||
relativePath: remoteVersion.relativePath,
|
||||
return;
|
||||
}
|
||||
|
||||
const content = (
|
||||
await this.syncService.get({
|
||||
documentId: remoteVersion.documentId
|
||||
})
|
||||
).contentBase64;
|
||||
|
||||
document = this.database.getDocumentByDocumentId(
|
||||
remoteVersion.documentId
|
||||
);
|
||||
|
||||
if (document?.isDeleted === true) {
|
||||
this.logger.info(
|
||||
`Document ${remoteVersion.relativePath} has been deleted locally before we could finish updating it`
|
||||
);
|
||||
return;
|
||||
}
|
||||
|
||||
if (
|
||||
(document?.metadata?.parentVersionId ?? -1) >=
|
||||
remoteVersion.vaultUpdateId
|
||||
) {
|
||||
this.logger.debug(
|
||||
`Document ${remoteVersion.relativePath} is already more up to date than the fetched version`
|
||||
);
|
||||
return;
|
||||
}
|
||||
|
||||
const contentBytes = deserialize(content);
|
||||
|
||||
await this.operations.ensureClearPath(
|
||||
remoteVersion.relativePath
|
||||
);
|
||||
|
||||
const [promise, resolve] = createPromise();
|
||||
this.database.updateDocumentMetadata(
|
||||
{
|
||||
parentVersionId: remoteVersion.vaultUpdateId,
|
||||
hash: hash(contentBytes)
|
||||
});
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.SUCCESS,
|
||||
source: SyncSource.PULL,
|
||||
relativePath: remoteVersion.relativePath,
|
||||
message: `Successfully downloaded remote file which hadn't existed locally`,
|
||||
type: SyncType.CREATE
|
||||
});
|
||||
return;
|
||||
}
|
||||
},
|
||||
this.database.createNewPendingDocument(
|
||||
remoteVersion.documentId,
|
||||
remoteVersion.relativePath,
|
||||
promise
|
||||
)
|
||||
);
|
||||
|
||||
const [relativePath, metadata] = localMetadata;
|
||||
await this.operations.create(
|
||||
remoteVersion.relativePath,
|
||||
contentBytes
|
||||
);
|
||||
|
||||
if (remoteVersion.vaultUpdateId <= metadata.parentVersionId) {
|
||||
this.logger.debug(
|
||||
`Document ${relativePath} is already up to date`
|
||||
);
|
||||
return;
|
||||
}
|
||||
resolve();
|
||||
this.database.removeDocumentPromise(promise);
|
||||
|
||||
try {
|
||||
if (remoteVersion.isDeleted) {
|
||||
await this.operations.remove(relativePath);
|
||||
await this.database.removeDocument(relativePath);
|
||||
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.SUCCESS,
|
||||
source: SyncSource.PULL,
|
||||
relativePath: remoteVersion.relativePath,
|
||||
message: `Successfully deleted remotely deleted file locally`,
|
||||
type: SyncType.DELETE
|
||||
});
|
||||
} else {
|
||||
// TODO: this can fail, that's bad
|
||||
const currentContent =
|
||||
await this.operations.read(relativePath); // this can throw FileNotFoundError
|
||||
const currentHash = hash(currentContent);
|
||||
|
||||
if (currentHash !== metadata.hash) {
|
||||
this.logger.info(
|
||||
`Document ${relativePath} has been updated both remotely and locally, letting the local file update event handle it`
|
||||
);
|
||||
return;
|
||||
}
|
||||
|
||||
const content = (
|
||||
await this.syncService.get({
|
||||
documentId: remoteVersion.documentId
|
||||
})
|
||||
).contentBase64;
|
||||
const contentBytes = deserialize(content);
|
||||
const contentHash = hash(contentBytes);
|
||||
|
||||
if (relativePath !== remoteVersion.relativePath) {
|
||||
// TODO: this can fail, that's bad
|
||||
await this.operations.move(
|
||||
// this can throw FileNotFoundError
|
||||
relativePath,
|
||||
remoteVersion.relativePath,
|
||||
remoteVersion.documentId
|
||||
);
|
||||
|
||||
await this.database.updatePath(
|
||||
relativePath,
|
||||
remoteVersion.relativePath
|
||||
);
|
||||
}
|
||||
|
||||
await this.operations.write(
|
||||
remoteVersion.relativePath,
|
||||
currentContent,
|
||||
contentBytes
|
||||
);
|
||||
await this.database.setDocument({
|
||||
documentId: remoteVersion.documentId,
|
||||
relativePath: remoteVersion.relativePath,
|
||||
parentVersionId: remoteVersion.vaultUpdateId,
|
||||
hash: contentHash
|
||||
});
|
||||
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.SUCCESS,
|
||||
source: SyncSource.PULL,
|
||||
relativePath: remoteVersion.relativePath,
|
||||
message: `Successfully updated remotely updated file locally`,
|
||||
type: SyncType.UPDATE
|
||||
});
|
||||
}
|
||||
} finally {
|
||||
if (relativePath !== remoteVersion.relativePath) {
|
||||
this.locks.unlockDocument(relativePath);
|
||||
}
|
||||
}
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.SUCCESS,
|
||||
source: SyncSource.PULL,
|
||||
relativePath: remoteVersion.relativePath,
|
||||
message: `Successfully downloaded remote file which hadn't existed locally`,
|
||||
type: SyncType.CREATE
|
||||
});
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
public async executeWhileHoldingFileLock(
|
||||
lockedPaths: RelativePath[],
|
||||
public async executeSync<T>(
|
||||
relativePath: RelativePath,
|
||||
syncType: SyncType,
|
||||
syncSource: SyncSource,
|
||||
fn: () => Promise<void>
|
||||
): Promise<void> {
|
||||
const relativePath = lockedPaths[lockedPaths.length - 1];
|
||||
|
||||
if (!this.settings.getSettings().isSyncEnabled) {
|
||||
this.logger.info(
|
||||
`Syncing is disabled, not syncing ${relativePath}`
|
||||
);
|
||||
return;
|
||||
}
|
||||
fn: () => Promise<T>
|
||||
): Promise<T | undefined> {
|
||||
if (!this.operations.isFileEligibleForSync(relativePath)) {
|
||||
this.logger.info(
|
||||
`File ${relativePath} is not eligible for syncing`
|
||||
);
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.ERROR,
|
||||
relativePath,
|
||||
message: `File ${relativePath} is not eligible for syncing`,
|
||||
type: syncType
|
||||
});
|
||||
return;
|
||||
}
|
||||
|
||||
this.logger.debug(
|
||||
`Syncing ${relativePath} (${syncSource} - ${syncType})`
|
||||
);
|
||||
|
||||
await Promise.all(
|
||||
lockedPaths.map(this.locks.waitForDocumentLock.bind(this.locks))
|
||||
);
|
||||
try {
|
||||
await fn();
|
||||
if (
|
||||
(await this.operations.exists(relativePath)) &&
|
||||
(await this.operations.getFileSize(relativePath)) / // this can throw FileNotFoundError
|
||||
1024 /
|
||||
1024 >
|
||||
this.settings.getSettings().maxFileSizeMB
|
||||
) {
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.ERROR,
|
||||
relativePath,
|
||||
message: `File size exceeds the maximum file size limit of ${
|
||||
this.settings.getSettings().maxFileSizeMB
|
||||
}MB`,
|
||||
type: syncType
|
||||
});
|
||||
return;
|
||||
}
|
||||
|
||||
return await fn();
|
||||
} catch (e) {
|
||||
if (e instanceof FileNotFoundError) {
|
||||
// A subsequent sync operation must have been creating to deal with this
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.NO_OP,
|
||||
relativePath,
|
||||
message: `Skip ${syncSource.toLocaleLowerCase()} file because it no longer exists when trying to ${syncType.toLocaleLowerCase()} it`,
|
||||
type: syncType,
|
||||
source: syncSource
|
||||
});
|
||||
this.logger.info(
|
||||
`Skip ${syncSource.toLocaleLowerCase()} file because it no longer exists when trying to ${syncType.toLocaleLowerCase()} it`
|
||||
);
|
||||
} else {
|
||||
this.history.addHistoryEntry({
|
||||
status: SyncStatus.ERROR,
|
||||
|
|
@ -533,8 +406,6 @@ export class UnrestrictedSyncer {
|
|||
});
|
||||
throw e;
|
||||
}
|
||||
} finally {
|
||||
lockedPaths.forEach(this.locks.unlockDocument.bind(this.locks));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -542,11 +413,9 @@ export class UnrestrictedSyncer {
|
|||
this.locks.reset();
|
||||
}
|
||||
|
||||
private async tryIncrementVaultUpdateId(
|
||||
responseVaultUpdateId: number
|
||||
): Promise<void> {
|
||||
private tryIncrementVaultUpdateId(responseVaultUpdateId: number): void {
|
||||
if (this.database.getLastSeenUpdateId() === responseVaultUpdateId - 1) {
|
||||
await this.database.setLastSeenUpdateId(responseVaultUpdateId);
|
||||
this.database.setLastSeenUpdateId(responseVaultUpdateId);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue