feat(backend): avatar migration stuff

migration-tools/avatar-migrator/index.js

@@ -0,0 +1,82 @@
+// TODO: i'm not even sure if this code works. it's not easy to test either. woops
+
+import postgres from "postgres";
+import { config } from "dotenv";
+import { Client } from "minio";
+import { Logger } from "tslog";
+import axios from "axios";
+config();
+const log = new Logger();
+
+const env = (key) => {
+  const value = process.env[key];
+  if (value) return value;
+  throw `No env variable with key $${key} found`;
+};
+
+const oldBaseUrl = env("OLD_BASE_URL");
+const bucket = env("MINIO_BUCKET");
+
+const sql = postgres(env("DATABASE_URL"));
+const minio = new Client({
+  endPoint: env("MINIO_ENDPOINT"),
+  useSSL: true,
+  accessKey: env("MINIO_ACCESS_KEY"),
+  secretKey: env("MINIO_SECRET_KEY"),
+});
+
+const users =
+  await sql`select id::text, username, legacy_id, avatar from users where  avatar is not null order by id asc`;
+log.info("have to migrate %d users", users.length);
+
+const migrate = async (user) => {
+  log.debug(
+    "copying /users/%s/%s.webp to /users/%s/avatars/%s.webp",
+    user.legacy_id,
+    user.avatar,
+    user.id,
+    user.avatar
+  );
+
+  try {
+    const file = await axios.get(
+      `${oldBaseUrl}/users/${user.legacy_id}/${user.avatar}.webp`,
+      { responseType: "stream" }
+    );
+    await minio.putObject(
+      bucket,
+      `users/${user.id}/avatars/${user.avatar}.webp`,
+      file.data,
+      file.headers["Content-Length"]
+    );
+
+    log.info("copied avatar for user %s", user.id);
+
+    await sql`update users set avatar_migrated = true where id = ${user.id}::bigint`;
+  } catch (e) {
+    if ("status" in e && e.status === 404) {
+      log.warn(
+        "avatar for user %s/%s is not found. marking it as migrated.",
+        user.id,
+        user.username
+      );
+      await sql`update users set avatar_migrated = true where id = ${user.id}::bigint`;
+      return;
+    }
+
+    log.error(
+      "could not migrate avatar for user %s/%s:",
+      user.id,
+      user.username,
+      e
+    );
+  }
+};
+
+for (let index = 0; index < users.length; index++) {
+  const user = users[index];
+  await migrate(user);
+}
+
+log.info("all users migrated!");
+process.exit();