forked from coracle/flotilla
Speed up boot, prune stores
This commit is contained in:
+5
-19
@@ -1,39 +1,32 @@
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import {openDB, deleteDB} from "idb"
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import type {IDBPDatabase} from "idb"
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import type {Unsubscriber} from "svelte/store"
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import {call} from "@welshman/lib"
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import type {Maybe} from "@welshman/lib"
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export type IDBAdapter = {
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export type IDBStore = {
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name: string
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keyPath: string
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init: (table: IDBTable<any>) => Promise<Unsubscriber>
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}
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export type IDBAdapters = IDBAdapter[]
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export type IDBOptions = {
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name: string
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version: number
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stores: IDBStore[]
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}
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export class IDB {
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adapters: IDBAdapters = []
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connection: Maybe<Promise<IDBPDatabase>>
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unsubscribers: Maybe<Unsubscriber[]>
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failedToConnect = false
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constructor(readonly options: IDBOptions) {}
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async connect() {
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if (!this.failedToConnect && !this.connection) {
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const {name, version} = this.options
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const adapters = this.adapters
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const {name, version, stores} = this.options
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try {
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this.connection = openDB(name, version, {
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upgrade(idbDb: IDBPDatabase) {
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const names = new Set(adapters.map(a => a.name))
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const names = new Set(stores.map(store => store.name))
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for (const table of idbDb.objectStoreNames) {
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if (!names.has(table)) {
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@@ -41,7 +34,7 @@ export class IDB {
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}
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}
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for (const {name, keyPath} of adapters) {
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for (const {name, keyPath} of stores) {
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try {
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idbDb.createObjectStore(name, {keyPath})
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} catch (e) {
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@@ -52,10 +45,6 @@ export class IDB {
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blocked() {},
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blocking() {},
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})
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this.unsubscribers = await Promise.all(
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adapters.map(({name, init}) => init(this.table(name))),
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)
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} catch (e) {
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console.error("Failed to connect to indexeddb", e)
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this.failedToConnect = true
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@@ -115,9 +104,6 @@ export class IDB {
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}
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close = () => {
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this.unsubscribers?.forEach(call)
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this.unsubscribers = undefined
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this.connection?.then(c => c.close())
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this.connection = undefined
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}
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