Add prepared option

.gitignore

@@ -1,2 +1,3 @@
 target/
 *.sqlite3
+.deno_plugins

README.md

@@ -19,15 +19,15 @@ First, download the compiled plugin (~10MB).
 If you're not using Linux, you will have to compile from source for now (see below).
 
 ```bash
-wget https://github.com/crabmusket/deno_sqlite_plugin/releases/download/v0.1/libdeno_sqlite_plugin.so
+wget https://github.com/crabmusket/deno_sqlite_plugin/releases/download/v0.2/libdeno_sqlite_plugin.so
 ```
 
 Now copy this to `sqlite.ts`:
 
 ```ts
-import * as sqlitePlugin from "https://raw.githubusercontent.com/crabmusket/deno_sqlite_plugin/v0.1/src/mod.ts";
+import { Sqlite } from "https://raw.githubusercontent.com/crabmusket/deno_sqlite_plugin/v0.2/src/mod.ts";
 
-const sqlite = await sqlitePlugin.init("./libdeno_sqlite_plugin.so");
+const sqlite = new Sqlite(Deno.openPlugin("./libdeno_sqlite_plugin.so"));
 const db = await sqlite.connect("./db.sqlite3");
 await db.execute("CREATE TABLE IF NOT EXISTS names (name TEXT)");
 await db.execute("INSERT INTO names (name) VALUES (?)", ["ryan dahl"]);
@@ -43,7 +43,18 @@ $ deno --allow-plugin sqlite.ts
 [ [ "ryan dahl" ] ]
 ```
 
-See [interface.js](./tests/interface.js) for more.
+## Auto-download plugin
+
+You can also import `prepared.ts` to fetch the plugin transparently using [plugin_prepare](https://github.com/manyuanrong/deno-plugin-prepare).
+Replace the top lines of the example above with:
+
+```ts
+import { Sqlite, sqlitePlugin } from "https://raw.githubusercontent.com/crabmusket/deno_sqlite_plugin/v0.2/src/prepared.ts";
+
+const sqlite = new Sqlite(sqlitePlugin);
+```
+
+This may be more ergonomic if you want to use Sqlite in a library that others will depend on.
 
 ## Build from source
 

src/mod.ts

@@ -3,11 +3,6 @@ import { bufferToBase64 } from "./bufferToBase64.js";
 const encoder = new TextEncoder();
 const decoder = new TextDecoder();
 
-export async function init(filename: string): Promise<Sqlite> {
-  let plugin = Deno.openPlugin(filename);
-  return new Sqlite(plugin);
-}
-
 export class Sqlite {
   _plugin: Deno.Plugin;
 

src/prepared.ts

@@ -0,0 +1,13 @@
+import { prepare } from "https://deno.land/x/plugin_prepare/mod.ts";
+
+export * from "./mod.ts";
+
+const releaseUrl =
+    "https://github.com/crabmusket/deno_sqlite_plugin/releases/download/v0.2";
+
+export const sqlitePlugin = await prepare({
+    name: "deno_sqlite_plugin",
+    urls: {
+        linux: `${releaseUrl}/libdeno_sqlite_plugin.so`
+    }
+});

tests/interface.js

@@ -1,4 +1,4 @@
-import { init } from "../src/mod.ts";
+import { Sqlite } from "../src/mod.ts";
 
 const filenameBase = "deno_sqlite_plugin";
 
@@ -16,7 +16,7 @@ if (Deno.build.os === "mac") {
 const filename = `./target/${Deno.args[0] ||
   "debug"}/${filenamePrefix}${filenameBase}${filenameSuffix}`;
 
-let sqlite = await init(filename);
+let sqlite = new Sqlite(Deno.openPlugin(filename));
 
 let connection = await sqlite.connect(":memory:");
 await connection.execute(`CREATE TABLE IF NOT EXISTS person (