predownload sqlite3

scripts/download_ffi.ts

@@ -0,0 +1,28 @@
+import { dirname } from "std/path/mod.ts";
+import { sure_dir } from "../utils.ts";
+
+const map = JSON.parse(await Deno.readTextFile("./import_map.json")).imports;
+const re = /x\/sqlite3@([0-9\.]+)/;
+const sqlite3_version = map["sqlite3/"].match(re)[1];
+
+async function fetch_file(u: string | URL, p: string) {
+    await sure_dir(dirname(p));
+    const f = await Deno.open(p, { create: true, write: true, truncate: true });
+    try {
+        const r = await fetch(u);
+        if (!r.body) throw Error("No body.");
+        await r.body.pipeTo(f.writable);
+    } finally {
+        try {
+            f.close();
+        } catch (_) {
+            null;
+        }
+    }
+}
+
+await fetch_file(
+    `https://github.com/denodrivers/sqlite3/releases/download/${sqlite3_version}/libsqlite3.so`,
+    `./lib/libsqlite3.so`,
+);
+Deno.exit(0);