1import { Database } from "bun:sqlite";2import { beforeAll, describe, expect, test } from "bun:test";3import { mkdtemp, writeFile } from "node:fs/promises";4import { tmpdir } from "node:os";5import { join } from "node:path";6import { openBucket } from "../src/bucket/reader.ts";7import { syncAll } from "../src/bucket/sync.ts";8import {9 fileAt,10 filesAt,11 headId,12 history,13 objectBytes,14 repoStats,15 saveByPrefix,16 timeline,17} from "../src/mirror/queries.ts";18import { openMirror } from "../src/mirror/store.ts";19import { openKeprDb } from "../src/server/db.ts";20import { type Fixture, makeKohBucket } from "./fixture.ts";2122const text = (bytes: Uint8Array | null) => new TextDecoder().decode(bytes ?? new Uint8Array());2324async function syncTarget(fx: Fixture) {25 const dataDir = await mkdtemp(join(tmpdir(), "kepr-data-"));26 const target = {27 bucket: openBucket({ kind: "folder", path: fx.bucketDir }),28 kepr: openKeprDb(dataDir),29 mirrorDir: join(dataDir, "mirror"),30 };31 return { ...target, mirror: () => openMirror(target.mirrorDir, fx.repo) };32}3334describe("a first sync of a koh3 bucket", () => {35 let fx: Fixture;36 let t: Awaited<ReturnType<typeof syncTarget>>;37 beforeAll(async () => {38 fx = await makeKohBucket();39 t = await syncTarget(fx);40 await syncAll(t);41 });42 const [head, checkpoint, second, first] = [0, 1, 2, 3].map((i) => () => fx.saveIds[i] as string);4344 test("registers the repo private, with a clean last sync", () => {45 const row = t.kepr.query("SELECT public, last_sync_at, last_sync_error FROM repos").get() as {46 public: number;47 last_sync_at: number;48 last_sync_error: string | null;49 };50 expect(row.public).toBe(0);51 expect(row.last_sync_error).toBeNull();52 expect(row.last_sync_at).toBeGreaterThan(0);53 });5455 test("history is newest first and leaves out the checkpoint", () => {56 expect(headId(t.mirror())).toBe(head());57 expect(history(t.mirror(), 10, 0).map((s) => s.id)).toEqual([head(), second(), first()]);58 expect(history(t.mirror(), 1, 1).map((s) => s.message)).toEqual(["add readme and entry point"]);59 expect(timeline(t.mirror()).map((s) => s.id)).toEqual([first(), second(), head()]);60 expect(saveByPrefix(t.mirror(), checkpoint())?.is_checkpoint).toBe(true);61 });6263 test("finds a save by a unique prefix of six or more characters", () => {64 const save = saveByPrefix(t.mirror(), second().slice(0, 6));65 expect([save?.id, save?.agent, save?.session]).toEqual([second(), "test-agent", "fixture"]);66 expect(saveByPrefix(t.mirror(), second().slice(0, 5))).toBeNull();67 expect(saveByPrefix(t.mirror(), "zzzzzz")).toBeNull();68 });6970 test("reads files and their bytes at any save", () => {71 const paths = filesAt(t.mirror(), head()).map((f) => f.path);72 expect(paths).toContain("src/lib/deep/util.ts");73 const now = fileAt(t.mirror(), head(), "src/main.ts");74 const then = fileAt(t.mirror(), second(), "src/main.ts");75 expect(text(objectBytes(t.mirror(), now?.hash as string))).toContain("hello");76 expect(text(objectBytes(t.mirror(), then?.hash as string))).toContain("'hi'");77 expect(fileAt(t.mirror(), first(), "src/main.ts")).toBeNull();78 expect(fileAt(t.mirror(), head(), "docs/logo.png")?.size).toBe(70);79 });8081 test("counts saves without checkpoints, and lines and language at head", () => {82 const stats = repoStats(t.mirror());83 expect(stats.saves).toBe(3);84 expect(stats.language).toBe("TypeScript");85 86 expect(stats.lines).toBeGreaterThan(16);87 88 expect(stats.lines).toBeLessThan(100);89 expect(stats.updated).toBe(saveByPrefix(t.mirror(), head())?.created_at ?? -1);90 });9192 test("stores the flag event", () => {93 const flag = t.mirror().query("SELECT kind, save_id, reason FROM events").get();94 expect(flag).toEqual({ kind: "flag", save_id: first(), reason: "holds a secret" });95 });9697 test("a strip reaches the mirror and drops the object", async () => {98 const secret = fileAt(t.mirror(), head(), "secret.txt")?.hash as string;99 expect(objectBytes(t.mirror(), secret)).not.toBeNull();100 await fx.strip("secret.txt");101 await syncAll(t);102 for (const id of fx.saveIds) expect(fileAt(t.mirror(), id, "secret.txt")).toBeNull();103 expect(objectBytes(t.mirror(), secret)).toBeNull();104 expect(fileAt(t.mirror(), head(), "src/main.ts")).not.toBeNull();105 });106});107108test("a new save syncs incrementally and a bad format is recorded as the last sync error", async () => {109 const fx = await makeKohBucket("growing");110 const t = await syncTarget(fx);111 await syncAll(t);112 await writeFile(join(fx.repoDir, "new.txt"), "new\n");113 Bun.spawnSync(["koh3", "save", "add new"], {114 cwd: fx.repoDir,115 env: { PATH: process.env.PATH, HOME: join(fx.repoDir, "../../home"), NO_COLOR: "1" },116 });117 await syncAll(t);118 expect(history(t.mirror(), 1, 0)[0]?.message).toBe("add new");119120 await writeFile(join(fx.bucketDir, fx.repo, "format"), "koh-remote 2");121 await syncAll(t);122 const row = t.kepr.query("SELECT last_sync_error FROM repos").get() as {123 last_sync_error: string;124 };125 expect(row.last_sync_error).toContain('remote format "koh-remote 2"');126});127128describe("the mirror's schema version", () => {129 test("a version 1 mirror reopens and any other version is refused as disposable", async () => {130 const dir = await mkdtemp(join(tmpdir(), "kepr-mirror-"));131 const created = openMirror(dir, "one");132 created.run("PRAGMA wal_checkpoint(TRUNCATE)");133 await Bun.write(join(dir, "copy.db"), Bun.file(join(dir, "one.db")));134 expect(openMirror(dir, "copy").query("PRAGMA user_version").get()).toEqual({135 user_version: 1,136 });137138 const future = new Database(join(dir, "future.db"));139 future.run("PRAGMA user_version = 2");140 future.close();141 expect(() => openMirror(dir, "future")).toThrow("disposable");142 });143});