SilverBullet pivot to become an offline-first PWA (#403)
This commit is contained in:
Zef Hemel
@@ -1,51 +0,0 @@
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import { assertEquals } from "https://deno.land/std@0.165.0/testing/asserts.ts";
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import { AsyncSQLite } from "../../plugos/sqlite/async_sqlite.ts";
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import { ensureTable, pageIndexSyscalls } from "./index.ts";
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const fakeContext = {} as any;
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Deno.test("Page index", async () => {
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const db = new AsyncSQLite(":memory:");
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await db.init();
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await ensureTable(db);
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const syscalls = pageIndexSyscalls(db);
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await syscalls["index.set"](fakeContext, "page1", "key1", "value1");
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assertEquals(
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"value1",
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await syscalls["index.get"](fakeContext, "page1", "key1"),
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);
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await syscalls["index.set"](fakeContext, "page1", "key1", "value2");
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assertEquals(
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"value2",
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await syscalls["index.get"](fakeContext, "page1", "key1"),
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);
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await syscalls["index.set"](fakeContext, "page1", "key2", "value1");
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assertEquals(
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[
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{ key: "key1", page: "page1", value: "value2" },
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{ key: "key2", page: "page1", value: "value1" },
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],
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await syscalls["index.queryPrefix"](fakeContext, ""),
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);
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await syscalls["index.delete"](fakeContext, "page1", "key1");
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assertEquals(
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[
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{ key: "key2", page: "page1", value: "value1" },
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],
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await syscalls["index.queryPrefix"](fakeContext, ""),
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);
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await syscalls["index.batchSet"](fakeContext, "page1", [
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{ key: "key1", value: "value1" },
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{ key: "key2", value: "value2" },
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{ key: "key3", value: "value3" },
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]);
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assertEquals(
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[
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{ key: "key1", page: "page1", value: "value1" },
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{ key: "key2", page: "page1", value: "value2" },
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{ key: "key3", page: "page1", value: "value3" },
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],
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await syscalls["index.queryPrefix"](fakeContext, ""),
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);
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db.stop();
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});
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@@ -1,123 +0,0 @@
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// import { Knex } from "knex";
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import { SysCallMapping } from "../../plugos/system.ts";
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import { Query, queryToSql } from "../../plugos/syscalls/store.sqlite.ts";
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import { ISQLite } from "../../plugos/sqlite/sqlite_interface.ts";
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type Item = {
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page: string;
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key: string;
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value: any;
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};
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export type KV = {
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key: string;
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value: any;
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};
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const tableName = "page_index";
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export async function ensureTable(db: ISQLite): Promise<void> {
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const result = await db.query(
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`SELECT name FROM sqlite_master WHERE type='table' AND name=?`,
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tableName,
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);
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if (result.length === 0) {
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await db.execute(
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`CREATE TABLE ${tableName} (key STRING, page STRING, value TEXT, PRIMARY KEY (page, key));`,
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);
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await db.execute(
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`CREATE INDEX ${tableName}_idx ON ${tableName}(key);`,
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);
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// console.log(`Created table ${tableName}`);
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}
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}
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export function pageIndexSyscalls(db: ISQLite): SysCallMapping {
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const apiObj: SysCallMapping = {
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"index.set": async (_ctx, page: string, key: string, value: any) => {
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await db.execute(
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`INSERT INTO ${tableName}
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(page, key, value)
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VALUES (?, ?, ?)
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ON CONFLICT(page, key)
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DO UPDATE SET value=excluded.value`,
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page,
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key,
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JSON.stringify(value),
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);
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},
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"index.batchSet": async (_ctx, page: string, kvs: KV[]) => {
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if (kvs.length === 0) {
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return;
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}
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const values = kvs.flatMap((
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kv,
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) => [page, kv.key, JSON.stringify(kv.value)]);
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await db.execute(
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`INSERT INTO ${tableName}
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(page, key, value)
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VALUES ${kvs.map((_) => "(?, ?, ?)").join(",")}
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ON CONFLICT(key, page)
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DO UPDATE SET value=excluded.value`,
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...values,
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);
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},
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"index.delete": async (_ctx, page: string, key: string) => {
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await db.execute(
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`DELETE FROM ${tableName} WHERE key = ? AND page = ?`,
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key,
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page,
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);
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},
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"index.get": async (_ctx, page: string, key: string) => {
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const result = await db.query(
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`SELECT value FROM ${tableName} WHERE key = ? AND page = ?`,
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key,
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page,
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);
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if (result.length) {
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return JSON.parse(result[0].value);
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} else {
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return null;
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}
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},
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"index.queryPrefix": async (_ctx, prefix: string) => {
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return (
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await db.query(
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`SELECT key, page, value FROM ${tableName} WHERE key LIKE ? ORDER BY key, page ASC`,
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`${prefix}%`,
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)
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).map(({ key, value, page }) => ({
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key,
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page,
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value: JSON.parse(value),
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}));
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},
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"index.query": async (_ctx, query: Query) => {
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const { sql, params } = queryToSql(query);
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return (
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await db.query(`SELECT key, value FROM ${tableName} ${sql}`, ...params)
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).map(({ key, value, page }: any) => ({
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key,
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page,
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value: JSON.parse(value),
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}));
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},
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"index.clearPageIndexForPage": async (ctx, page: string) => {
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await apiObj["index.deletePrefixForPage"](ctx, page, "");
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},
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"index.deletePrefixForPage": async (_ctx, page: string, prefix: string) => {
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await db.execute(
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`DELETE FROM ${tableName} WHERE key LIKE ? AND page = ?`,
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`${prefix}%`,
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page,
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);
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},
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"index.clearPageIndex": async () => {
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await db.execute(
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`DELETE FROM ${tableName}`,
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);
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},
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};
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return apiObj;
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}
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@@ -1,38 +0,0 @@
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import { Plug } from "../../plugos/plug.ts";
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import { SysCallMapping, System } from "../../plugos/system.ts";
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export function systemSyscalls(
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plugReloader: () => Promise<void>,
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system: System<any>,
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): SysCallMapping {
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return {
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"system.invokeFunction": (
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ctx,
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// Ignored in this context, always assuming server (this place)
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_env: string,
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name: string,
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...args: any[]
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) => {
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if (!ctx.plug) {
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throw Error("No plug associated with context");
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}
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let plug: Plug<any> | undefined = ctx.plug;
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if (name.indexOf(".") !== -1) {
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// plug name in the name
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const [plugName, functionName] = name.split(".");
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plug = system.loadedPlugs.get(plugName);
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if (!plug) {
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throw Error(`Plug ${plugName} not found`);
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}
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name = functionName;
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}
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return plug.invoke(name, args);
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},
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"system.reloadPlugs": () => {
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return plugReloader();
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},
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"system.getEnv": () => {
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return system.env;
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},
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};
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}
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