@keyv/sqlite
Version:
SQLite storage adapter for Keyv
169 lines (167 loc) • 6.3 kB
JavaScript
;
var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
for (var name in all)
__defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
if (from && typeof from === "object" || typeof from === "function") {
for (let key of __getOwnPropNames(from))
if (!__hasOwnProp.call(to, key) && key !== except)
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
}
return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
// If the importer is in node compatibility mode or this is not an ESM
// file that has been converted to a CommonJS file using a Babel-
// compatible transform (i.e. "__esModule" has not been set), then set
// "default" to the CommonJS "module.exports" for node compatibility.
isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
// src/index.ts
var index_exports = {};
__export(index_exports, {
KeyvSqlite: () => KeyvSqlite,
createKeyv: () => createKeyv,
default: () => index_default
});
module.exports = __toCommonJS(index_exports);
var import_events = __toESM(require("events"), 1);
var import_util = require("util");
var import_keyv = __toESM(require("keyv"), 1);
var import_sqlite3 = __toESM(require("sqlite3"), 1);
var toString = (input) => String(input).search(/^[a-zA-Z]+$/) < 0 ? "_" + input : input;
var KeyvSqlite = class extends import_events.default {
ttlSupport;
opts;
namespace;
close;
query;
constructor(keyvOptions) {
super();
this.ttlSupport = false;
let options = {
dialect: "sqlite",
uri: "sqlite://:memory:"
};
if (typeof keyvOptions === "string") {
options.uri = keyvOptions;
} else {
options = {
...options,
...keyvOptions
};
}
options.db = options.uri.replace(/^sqlite:\/\//, "");
options.connect = async () => new Promise((resolve, reject) => {
const database = new import_sqlite3.default.Database(options.db, (error) => {
if (error) {
reject(error);
} else {
if (options.busyTimeout) {
database.configure("busyTimeout", options.busyTimeout);
}
resolve(database);
}
});
}).then((database) => ({ query: (0, import_util.promisify)(database.all).bind(database), close: (0, import_util.promisify)(database.close).bind(database) }));
this.opts = {
table: "keyv",
keySize: 255,
...options
};
this.opts.table = toString(this.opts.table);
const createTable = `CREATE TABLE IF NOT EXISTS ${this.opts.table}(key VARCHAR(${Number(this.opts.keySize)}) PRIMARY KEY, value TEXT )`;
const connected = this.opts.connect().then(async (database) => database.query(createTable).then(() => database)).catch((error) => this.emit("error", error));
this.query = async (sqlString, ...parameter) => connected.then(async (database) => database.query(sqlString, ...parameter));
this.close = async () => connected.then((database) => database.close);
}
async get(key) {
const select = `SELECT * FROM ${this.opts.table} WHERE key = ?`;
const rows = await this.query(select, key);
const row = rows[0];
if (row === void 0) {
return void 0;
}
return row.value;
}
async getMany(keys) {
const select = `SELECT * FROM ${this.opts.table} WHERE key IN (SELECT value FROM json_each(?))`;
const rows = await this.query(select, JSON.stringify(keys));
return keys.map((key) => {
const row = rows.find((row2) => row2.key === key);
return row ? row.value : void 0;
});
}
async set(key, value) {
const upsert = `INSERT INTO ${this.opts.table} (key, value)
VALUES(?, ?)
ON CONFLICT(key)
DO UPDATE SET value=excluded.value;`;
return this.query(upsert, key, value);
}
async delete(key) {
const select = `SELECT * FROM ${this.opts.table} WHERE key = ?`;
const del = `DELETE FROM ${this.opts.table} WHERE key = ?`;
const rows = await this.query(select, key);
const row = rows[0];
if (row === void 0) {
return false;
}
await this.query(del, key);
return true;
}
async deleteMany(keys) {
const del = `DELETE FROM ${this.opts.table} WHERE key IN (SELECT value FROM json_each(?))`;
const results = await this.getMany(keys);
if (results.every((x) => x === void 0)) {
return false;
}
await this.query(del, JSON.stringify(keys));
return true;
}
async clear() {
const del = `DELETE FROM ${this.opts.table} WHERE key LIKE ?`;
await this.query(del, this.namespace ? `${this.namespace}:%` : "%");
}
async *iterator(namespace) {
const limit = Number.parseInt(this.opts.iterationLimit, 10) || 10;
async function* iterate(offset, options, query) {
const select = `SELECT * FROM ${options.table} WHERE key LIKE ? LIMIT ? OFFSET ?`;
const iterator = await query(select, [`${namespace ? namespace + ":" : ""}%`, limit, offset]);
const entries = [...iterator];
if (entries.length === 0) {
return;
}
for (const entry of entries) {
offset += 1;
yield [entry.key, entry.value];
}
yield* iterate(offset, options, query);
}
yield* iterate(0, this.opts, this.query);
}
async has(key) {
const exists = `SELECT EXISTS ( SELECT * FROM ${this.opts.table} WHERE key = ? )`;
const result = await this.query(exists, key);
return Object.values(result[0])[0] === 1;
}
async disconnect() {
await this.close();
}
};
var createKeyv = (keyvOptions) => new import_keyv.default({ store: new KeyvSqlite(keyvOptions) });
var index_default = KeyvSqlite;
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
KeyvSqlite,
createKeyv
});