mirror of
https://github.com/colbymchenry/codegraph.git
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Colby MchenryandClaude Opus 5.5
6162d872be
On Windows, libuv reports a watched folder that is being deleted by the folder's own absolute path (\\?\D:\...) and re-arms the read, which fails the same way at once: about 70,000 events in half a second until the stream is closed. The watcher gives each directory link in a project its own recursive stream, so deleting a link's target outside the project started that storm. handleDirEvent joined the absolute name onto the watched folder, got a path that doesn't exist, scheduled a full sync and nothing else. The stream was never closed, the server held a core until restart, and the storm kept re-arming the debounce, so no sync ever ran: the deleted files stayed in the index and later edits never auto-synced. The project root's stream had the same blind spot. Fix: handleDirEvent, which both stream callbacks use, now treats an absolute name as the watched folder itself reporting it is gone. The first such event on a stream arms one check 200 ms later; the rest of the burst finds it armed. The check closes a link's stream when the link no longer leads to the folder it watched (deleted, or pointed elsewhere) and re-reads the tree, whose full sync drops the link's files; a link that leads somewhere live is watched anew. A project root that is gone degrades the watcher with a "project folder was deleted or moved away" reason, which closes every stream. A normal event pays one path.isAbsolute check. Validation (Windows 11, Node 22.22, libuv 1.51): - Raw probe: fs.watch on a junction whose target is deleted gets 70,009 events named \\?\<the junction> in 500 ms (499 ms CPU), and none after close(). - Real MCP server over a project with a junction libs -> outside, outside deleted: main used 3484, 3406, 3391, 3281 ms of CPU per 3 s window and kept the linked symbol; an edit afterwards never synced. With the fix: 296, 0, 0, 79 ms; the linked symbol left the index; the edit synced. - New watcher tests: a fake fs.watch link storm (10,000 self-named events cost no fs call, the stream closes once, a full sync runs, the project stays watched), a fake root storm (degrades once, closes the stream), and a Windows-gated real junction whose storm must go quiet. All 3 fail on main's watcher.ts; watcher.test.ts passes 61/61. Reported in PR #2487 by @L0garithmic; this reimplements the fix independently. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
1597 lines
66 KiB
TypeScript
1597 lines
66 KiB
TypeScript
/**
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* FileWatcher Tests
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*
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* Tests for the file watcher that auto-syncs on changes.
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*
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* **Why inert mode + a synthetic event seam**: the watcher now uses Node's
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* native `fs.watch` (recursive on macOS/Windows, per-directory on Linux).
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* Under parallel vitest the OS watch subsystems (FSEvents / inotify) serve
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* many test files at once and event-delivery latency becomes non-deterministic
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* — a real fs change made in `beforeEach` can even leak into a later "should
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* NOT sync" assertion. So the unit tests construct the watcher with
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* `inertForTests: true` (no OS watcher installed) and drive its filter →
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* pendingFiles → debounce pipeline directly via
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* `__emitWatchEventForTests(root, relPath)` — deterministic, the same
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* convergence point a real event reaches. The debounce timer itself is the
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* real `setTimeout` (the unit under test). One end-to-end test ("auto-sync …
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* real fs.watch") runs the genuine native watcher against a real file write.
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*/
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import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest';
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import { EventEmitter } from 'events';
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import { execFileSync } from 'child_process';
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import * as fs from 'fs';
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import * as path from 'path';
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import * as os from 'os';
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import {
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FileWatcher,
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LockUnavailableError,
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__emitWatchEventForTests,
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__setFsWatchForTests,
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type WatchOptions,
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} from '../src/sync/watcher';
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import CodeGraph from '../src/index';
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// Keep real filesystem operations, with writable exports for failure injection.
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vi.mock('fs', async (importOriginal) => ({ ...await importOriginal<typeof import('fs')>() }));
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type SyncFn = (paths?: string[]) => Promise<{ filesChanged: number; durationMs: number }>;
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/**
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* Helper to wait for a condition with timeout. Used for assertions that depend
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* on the debounce timer (real setTimeout) firing, or on the real watcher's
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* event delivery in the end-to-end test.
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*/
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function waitFor(
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condition: () => boolean,
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timeoutMs = 2000,
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intervalMs = 25
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): Promise<void> {
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return new Promise((resolve, reject) => {
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const start = Date.now();
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const check = () => {
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if (condition()) return resolve();
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if (Date.now() - start > timeoutMs) return reject(new Error('waitFor timed out'));
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setTimeout(check, intervalMs);
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};
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check();
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});
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}
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describe('FileWatcher', () => {
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let testDir: string;
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const graphs = new Set<CodeGraph>();
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const unitWatchers = new Set<FileWatcher>();
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const initGraph = (...args: Parameters<typeof CodeGraph.initSync>) => {
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const cg = CodeGraph.initSync(...args);
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graphs.add(cg);
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return cg;
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};
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// Inert by default — unit tests drive events via __emitWatchEventForTests
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// and never depend on real OS watch delivery.
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const newWatcher = (
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syncFn: SyncFn,
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opts: WatchOptions = {},
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isFileStateCurrent?: (relativePath: string) => boolean
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) => {
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const watcher = new FileWatcher(testDir, syncFn, { inertForTests: true, ...opts }, isFileStateCurrent);
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unitWatchers.add(watcher);
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return watcher;
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};
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beforeEach(() => {
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testDir = fs.mkdtempSync(path.join(os.tmpdir(), 'codegraph-watcher-'));
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// Create a source file so the directory isn't empty
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const srcDir = path.join(testDir, 'src');
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fs.mkdirSync(srcDir);
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fs.writeFileSync(path.join(srcDir, 'index.ts'), 'export const x = 1;');
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});
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afterEach(async () => {
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// DB mutations become visible before async sync maintenance finishes.
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// Stop new work and drain it BEFORE closing SQLite or removing the fixture;
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// nested afterEach hooks run too late to protect this outer cleanup.
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for (const watcher of unitWatchers) watcher.stop();
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unitWatchers.clear();
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for (const cg of graphs) {
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cg.unwatch();
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await waitFor(() => !cg.isIndexing(), 8000);
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cg.close();
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}
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graphs.clear();
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__setFsWatchForTests(null); // reset the injected fs.watch seam
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vi.restoreAllMocks();
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if (fs.existsSync(testDir)) {
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fs.rmSync(testDir, { recursive: true, force: true });
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}
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});
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describe('start/stop lifecycle', () => {
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it('should start and stop without errors', () => {
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const syncFn = vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 });
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const watcher = newWatcher(syncFn);
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const started = watcher.start();
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expect(started).toBe(true);
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expect(watcher.isActive()).toBe(true);
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watcher.stop();
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expect(watcher.isActive()).toBe(false);
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});
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it('should be idempotent on double start', () => {
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const syncFn = vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 });
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const watcher = newWatcher(syncFn);
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expect(watcher.start()).toBe(true);
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expect(watcher.start()).toBe(true); // Should not throw
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expect(watcher.isActive()).toBe(true);
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watcher.stop();
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});
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it('should be idempotent on double stop', () => {
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const syncFn = vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 });
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const watcher = newWatcher(syncFn);
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watcher.start();
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watcher.stop();
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watcher.stop(); // Should not throw
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expect(watcher.isActive()).toBe(false);
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});
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});
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describe('watch-resource exhaustion (#876)', () => {
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// These exercise the REAL fs.watch path (not inert) with an injected watch
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// that throws / emits EMFILE, covering whichever strategy the host platform
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// uses — recursive on macOS/Windows, per-directory on Linux. Each uses its
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// OWN EMPTY temp dir so exactly one watch is installed and the close-count
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// is deterministic across platforms.
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const mkEmptyDir = () => fs.mkdtempSync(path.join(os.tmpdir(), 'codegraph-exhaust-'));
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it('fails to start and degrades when fs.watch setup exhausts watch resources', () => {
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const dir = mkEmptyDir();
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const onDegraded = vi.fn();
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const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
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__setFsWatchForTests(() => {
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const err = new Error('too many open files') as NodeJS.ErrnoException;
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err.code = 'EMFILE';
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throw err;
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});
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const watcher = new FileWatcher(
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dir,
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vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 }),
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{ debounceMs: 100, onDegraded }
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);
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try {
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// Both watch strategies must report startup exhaustion identically.
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expect(watcher.start()).toBe(false);
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expect(watcher.isActive()).toBe(false);
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expect(watcher.isDegraded()).toBe(true);
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expect(watcher.getDegradedReason()).toContain('auto-sync disabled');
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expect(onDegraded).toHaveBeenCalledTimes(1);
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expect(onDegraded).toHaveBeenCalledWith(expect.stringContaining('auto-sync disabled'));
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const disableWarnings = warnSpy.mock.calls.filter(
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(c) => typeof c[0] === 'string' && c[0].includes('File watcher disabled')
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);
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expect(disableWarnings).toHaveLength(1);
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} finally {
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fs.rmSync(dir, { recursive: true, force: true });
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}
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});
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it('degrades exactly once when the live watcher emits EMFILE at runtime', () => {
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const dir = mkEmptyDir();
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const onDegraded = vi.fn();
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const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
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const emitter = new EventEmitter();
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let closed = 0;
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const fakeWatcher = {
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on: (event: string, handler: (...a: unknown[]) => void) => {
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emitter.on(event, handler);
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return fakeWatcher;
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},
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close: () => {
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closed += 1;
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},
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} as unknown as fs.FSWatcher;
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__setFsWatchForTests(() => fakeWatcher);
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const watcher = new FileWatcher(
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dir,
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vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 }),
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{ debounceMs: 100, onDegraded }
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);
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try {
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expect(watcher.start()).toBe(true);
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expect(watcher.isActive()).toBe(true);
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const err = new Error('too many open files') as NodeJS.ErrnoException;
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err.code = 'EMFILE';
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emitter.emit('error', err);
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emitter.emit('error', err); // a second burst must NOT degrade / close again
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expect(watcher.isActive()).toBe(false);
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expect(watcher.isDegraded()).toBe(true);
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expect(onDegraded).toHaveBeenCalledTimes(1);
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expect(closed).toBe(1);
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const disableWarnings = warnSpy.mock.calls.filter(
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(c) => typeof c[0] === 'string' && c[0].includes('File watcher disabled')
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);
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expect(disableWarnings).toHaveLength(1);
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} finally {
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fs.rmSync(dir, { recursive: true, force: true });
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}
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});
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it('reports isDegraded false / null reason while healthy', () => {
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const watcher = newWatcher(vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 }));
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watcher.start();
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expect(watcher.isDegraded()).toBe(false);
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expect(watcher.getDegradedReason()).toBeNull();
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watcher.stop();
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});
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it('warns once (NOT degrade) when Linux inotify watches are exhausted (ENOSPC)', () => {
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// ENOSPC only arises on the Linux per-directory path; force it so the test
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// runs the per-directory branch on any host. Synchronous test, restored in
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// finally — no await window for another test to observe the override.
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const realPlatform = process.platform;
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Object.defineProperty(process, 'platform', { value: 'linux', configurable: true });
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try {
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// Empty-but-for-one-subdir temp dir: the root watch succeeds, then the
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// child watch hits the (simulated) inotify budget — the realistic
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// "partial watch installed, then exhausted" shape.
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const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'codegraph-inotify-'));
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fs.mkdirSync(path.join(dir, 'sub'));
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const onDegraded = vi.fn();
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const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
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const emitter = new EventEmitter();
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let calls = 0;
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const okWatcher = {
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on: (event: string, handler: (...a: unknown[]) => void) => {
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emitter.on(event, handler);
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return okWatcher;
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},
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close: () => {},
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} as unknown as fs.FSWatcher;
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__setFsWatchForTests(() => {
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calls += 1;
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if (calls === 1) return okWatcher; // root dir watch succeeds
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const err = new Error('ENOSPC: System limit for number of file watchers reached') as NodeJS.ErrnoException;
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err.code = 'ENOSPC';
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throw err; // every subsequent dir exhausts the inotify budget
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});
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const watcher = new FileWatcher(
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dir,
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vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 }),
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{ debounceMs: 100, onDegraded }
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);
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try {
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// NON-fatal: the watcher starts (partial watch on the root), does NOT
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// degrade, and warns exactly once with the actionable sysctl remedy.
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expect(watcher.start()).toBe(true);
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expect(watcher.isActive()).toBe(true);
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expect(watcher.isDegraded()).toBe(false);
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expect(onDegraded).not.toHaveBeenCalled();
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const inotifyWarnings = warnSpy.mock.calls.filter(
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(c) => typeof c[0] === 'string' && c[0].includes('inotify watch limit')
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);
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expect(inotifyWarnings).toHaveLength(1);
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expect(String(inotifyWarnings[0]![0])).toContain('fs.inotify.max_user_watches');
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} finally {
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watcher.stop();
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fs.rmSync(dir, { recursive: true, force: true });
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}
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} finally {
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Object.defineProperty(process, 'platform', { value: realPlatform, configurable: true });
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}
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});
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});
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describe('lock contention degradation (#876)', () => {
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it('disables auto-sync after prolonged lock contention, with bounded retries', async () => {
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const syncFn = vi.fn().mockRejectedValue(new LockUnavailableError());
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const onSyncComplete = vi.fn();
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const onSyncError = vi.fn();
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const onDegraded = vi.fn();
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const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
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const watcher = newWatcher(syncFn, {
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debounceMs: 25,
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onSyncComplete,
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onSyncError,
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onDegraded,
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});
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watcher.start();
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await watcher.waitUntilReady();
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__emitWatchEventForTests(testDir, 'src/long-lock.ts');
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// 5 backoff retries (25·1,2,4,8,16 ms), then degrade on the 6th attempt.
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await waitFor(() => !watcher.isActive(), 8000, 20);
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expect(syncFn.mock.calls.length).toBeGreaterThanOrEqual(6); // MAX_LOCK_RETRIES + 1
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expect(watcher.isDegraded()).toBe(true);
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expect(onDegraded).toHaveBeenCalledTimes(1);
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expect(onDegraded).toHaveBeenCalledWith(expect.stringContaining('auto-sync disabled'));
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// A held lock is neither a sync error nor a completion.
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expect(onSyncError).not.toHaveBeenCalled();
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expect(onSyncComplete).not.toHaveBeenCalled();
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// Degrade stops the watcher, which clears pending state.
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expect(watcher.getPendingFiles()).toEqual([]);
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const disableWarnings = warnSpy.mock.calls.filter(
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(c) => typeof c[0] === 'string' && c[0].includes('File watcher disabled')
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);
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expect(disableWarnings).toHaveLength(1);
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});
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it('does NOT degrade on brief contention — backoff resets after a clean sync', async () => {
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const syncFn = vi
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.fn()
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.mockRejectedValueOnce(new LockUnavailableError())
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.mockRejectedValueOnce(new LockUnavailableError())
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.mockRejectedValueOnce(new LockUnavailableError())
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.mockResolvedValue({ filesChanged: 1, durationMs: 5 });
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const onDegraded = vi.fn();
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const onSyncComplete = vi.fn();
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const watcher = newWatcher(syncFn, { debounceMs: 25, onDegraded, onSyncComplete });
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watcher.start();
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await watcher.waitUntilReady();
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__emitWatchEventForTests(testDir, 'src/brief-lock.ts');
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await waitFor(() => onSyncComplete.mock.calls.length > 0, 4000, 20);
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expect(onDegraded).not.toHaveBeenCalled();
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expect(watcher.isDegraded()).toBe(false);
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expect(watcher.isActive()).toBe(true);
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expect(watcher.getPendingFiles().some((p) => p.path === 'src/brief-lock.ts')).toBe(false);
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watcher.stop();
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});
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it('re-arms after lock contention and keeps the stale banner until a full catch-up (#1959)', async () => {
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let finishCatchUp!: () => void;
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const catchUp = new Promise<void>(resolve => { finishCatchUp = resolve; });
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const syncFn = vi.fn().mockRejectedValue(new LockUnavailableError());
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const watcher = newWatcher(syncFn, { debounceMs: 25 });
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watcher.start();
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try {
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await watcher.waitUntilReady();
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__emitWatchEventForTests(testDir, 'src/locked.ts');
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await waitFor(() => watcher.isDegraded() && !watcher.isActive(), 8000);
|
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|
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syncFn.mockImplementation(async () => {
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await catchUp;
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return { filesChanged: 1, durationMs: 5 };
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});
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expect(watcher.rearmAfterLockContention()).toBe(true);
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expect(watcher.isActive()).toBe(true);
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expect(watcher.isDegraded()).toBe(true);
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expect(watcher.rearmAfterLockContention()).toBe(false);
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await waitFor(() => syncFn.mock.calls.length >= 7, 4000);
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expect(syncFn.mock.calls.at(-1)?.[0]).toBeUndefined();
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expect(watcher.isDegraded()).toBe(true);
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finishCatchUp();
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await waitFor(() => !watcher.isDegraded(), 4000);
|
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expect(watcher.isActive()).toBe(true);
|
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} finally {
|
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finishCatchUp?.();
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watcher.stop();
|
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}
|
|
});
|
|
|
|
it('throttles a failed re-arm across tool calls (#1959)', async () => {
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const syncFn = vi.fn().mockRejectedValue(new LockUnavailableError());
|
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const watcher = newWatcher(syncFn, { debounceMs: 25 });
|
|
watcher.start();
|
|
try {
|
|
await watcher.waitUntilReady();
|
|
__emitWatchEventForTests(testDir, 'src/locked.ts');
|
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await waitFor(() => watcher.isDegraded() && !watcher.isActive(), 8000);
|
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expect(watcher.rearmAfterLockContention()).toBe(true);
|
|
await waitFor(() => watcher.isDegraded() && !watcher.isActive(), 8000);
|
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expect(watcher.rearmAfterLockContention()).toBe(false);
|
|
} finally {
|
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watcher.stop();
|
|
}
|
|
});
|
|
});
|
|
|
|
describe('persistent sync-failure degradation (#1127)', () => {
|
|
it('disables auto-sync after a persistent non-lock sync failure, with bounded retries', async () => {
|
|
// A deterministic pipeline failure (broken extractor on a file, DB
|
|
// corruption, SQLITE_FULL, OOM) recurs every cycle. Unbounded it retried
|
|
// forever at the debounce cadence; it must now back off and degrade.
|
|
const syncFn = vi.fn().mockRejectedValue(new Error('extractor crashed on src/bad.ts'));
|
|
const onSyncComplete = vi.fn();
|
|
const onSyncError = vi.fn();
|
|
const onDegraded = vi.fn();
|
|
const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
|
|
const watcher = newWatcher(syncFn, {
|
|
debounceMs: 25,
|
|
onSyncComplete,
|
|
onSyncError,
|
|
onDegraded,
|
|
});
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
__emitWatchEventForTests(testDir, 'src/persistent-fail.ts');
|
|
|
|
// 5 backoff retries (25·1,2,4,8,16 ms), then degrade on the 6th attempt.
|
|
await waitFor(() => !watcher.isActive(), 8000, 20);
|
|
|
|
expect(syncFn.mock.calls.length).toBeGreaterThanOrEqual(6); // MAX_SYNC_FAILURE_RETRIES + 1
|
|
expect(watcher.isDegraded()).toBe(true);
|
|
expect(watcher.rearmAfterLockContention()).toBe(false);
|
|
expect(onDegraded).toHaveBeenCalledTimes(1);
|
|
expect(onDegraded).toHaveBeenCalledWith(expect.stringContaining('auto-sync disabled'));
|
|
// The degrade reason carries the underlying error so the user can act.
|
|
expect(onDegraded).toHaveBeenCalledWith(expect.stringContaining('extractor crashed'));
|
|
// Unlike a held lock, a generic failure IS surfaced per-attempt.
|
|
expect(onSyncError.mock.calls.length).toBeGreaterThanOrEqual(6);
|
|
expect(onSyncComplete).not.toHaveBeenCalled();
|
|
// Degrade stops the watcher, which clears pending state.
|
|
expect(watcher.getPendingFiles()).toEqual([]);
|
|
const disableWarnings = warnSpy.mock.calls.filter(
|
|
(c) => typeof c[0] === 'string' && c[0].includes('File watcher disabled')
|
|
);
|
|
expect(disableWarnings).toHaveLength(1);
|
|
});
|
|
|
|
it('does NOT degrade on a transient sync failure — backoff resets after a clean sync', async () => {
|
|
const syncFn = vi
|
|
.fn()
|
|
.mockRejectedValueOnce(new Error('transient blip'))
|
|
.mockRejectedValueOnce(new Error('transient blip'))
|
|
.mockRejectedValueOnce(new Error('transient blip'))
|
|
.mockResolvedValue({ filesChanged: 1, durationMs: 5 });
|
|
const onDegraded = vi.fn();
|
|
const onSyncComplete = vi.fn();
|
|
const watcher = newWatcher(syncFn, { debounceMs: 25, onDegraded, onSyncComplete });
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
__emitWatchEventForTests(testDir, 'src/transient-fail.ts');
|
|
|
|
await waitFor(() => onSyncComplete.mock.calls.length > 0, 4000, 20);
|
|
|
|
expect(onDegraded).not.toHaveBeenCalled();
|
|
expect(watcher.isDegraded()).toBe(false);
|
|
expect(watcher.isActive()).toBe(true);
|
|
expect(watcher.getPendingFiles().some((p) => p.path === 'src/transient-fail.ts')).toBe(false);
|
|
|
|
watcher.stop();
|
|
});
|
|
});
|
|
|
|
describe('debounced sync', () => {
|
|
it('should trigger sync after file change', async () => {
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 1, durationMs: 10 });
|
|
const watcher = newWatcher(syncFn, { debounceMs: 200 });
|
|
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
__emitWatchEventForTests(testDir, 'src/new.ts');
|
|
|
|
// Wait for debounced sync to fire (real timer; 200ms + epsilon).
|
|
await waitFor(() => syncFn.mock.calls.length > 0);
|
|
expect(syncFn).toHaveBeenCalled();
|
|
|
|
watcher.stop();
|
|
});
|
|
|
|
it('should debounce rapid changes into a single sync', async () => {
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 1, durationMs: 10 });
|
|
const watcher = newWatcher(syncFn, { debounceMs: 400 });
|
|
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
// Rapid-fire synthesized changes — each call resets the debounce timer.
|
|
// Spacing them tighter than the debounce window proves the debounce
|
|
// collapses them into one syncFn call.
|
|
for (let i = 0; i < 5; i++) {
|
|
__emitWatchEventForTests(testDir, `src/file${i}.ts`);
|
|
await new Promise((r) => setTimeout(r, 50));
|
|
}
|
|
|
|
// Wait for the single debounced sync.
|
|
await waitFor(() => syncFn.mock.calls.length > 0);
|
|
|
|
// Should have been called once (debounced), not 5 times.
|
|
expect(syncFn.mock.calls.length).toBe(1);
|
|
|
|
watcher.stop();
|
|
});
|
|
});
|
|
|
|
describe('filtering', () => {
|
|
it('should ignore files not matching include patterns', async () => {
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 });
|
|
const watcher = newWatcher(syncFn, { debounceMs: 200 });
|
|
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
// An EXISTING non-source file changing — FileWatcher's `isSourceFile`
|
|
// gate must drop it before scheduling sync. (It must exist on disk:
|
|
// a VANISHED non-source path is the deleted-directory shape, which
|
|
// deliberately schedules a sync — #1285.)
|
|
fs.writeFileSync(path.join(testDir, 'src', 'readme.md'), '# docs\n');
|
|
__emitWatchEventForTests(testDir, 'src/readme.md');
|
|
|
|
// Wait a bit longer than debounce — sync should NOT trigger.
|
|
await new Promise((r) => setTimeout(r, 400));
|
|
expect(syncFn).not.toHaveBeenCalled();
|
|
|
|
watcher.stop();
|
|
});
|
|
|
|
it('a deleted directory schedules a sync so child records get removed (#1285)', async () => {
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 });
|
|
const watcher = newWatcher(syncFn, { debounceMs: 100 });
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
// A directory deletion arrives as ONE event on the directory path —
|
|
// no extension, nothing on disk anymore. Must schedule a sync (the
|
|
// sync's scan-diff removes the children), not be dropped as
|
|
// "non-source".
|
|
const sub = path.join(testDir, 'docs');
|
|
fs.mkdirSync(path.join(sub, 'nested'), { recursive: true });
|
|
fs.writeFileSync(path.join(sub, 'nested', 'mod.ts'), 'export const q = 1;');
|
|
fs.rmSync(sub, { recursive: true, force: true });
|
|
__emitWatchEventForTests(testDir, 'docs');
|
|
|
|
await waitFor(() => syncFn.mock.calls.length > 0);
|
|
expect(syncFn).toHaveBeenCalled();
|
|
|
|
watcher.stop();
|
|
});
|
|
|
|
it('end-to-end: deleting a subdirectory removes its files from the index via watch sync (#1285)', async () => {
|
|
// Real CodeGraph as the sync target; the watcher is inert and driven
|
|
// by the synthetic event seam for determinism.
|
|
fs.writeFileSync(path.join(testDir, 'root.ts'), 'export const r = 1;');
|
|
const deep = path.join(testDir, 'docs', 'a', 'b');
|
|
fs.mkdirSync(deep, { recursive: true });
|
|
fs.writeFileSync(path.join(deep, 'inner.ts'), 'export const i = 2;');
|
|
|
|
const cg = initGraph(testDir);
|
|
await cg.indexAll();
|
|
const before = cg.getFiles().map((f) => f.path);
|
|
expect(before).toContain('docs/a/b/inner.ts');
|
|
|
|
const syncFn = vi.fn(async () => {
|
|
const r = await cg.sync();
|
|
return { filesChanged: r.filesAdded + r.filesModified + r.filesRemoved, durationMs: r.durationMs };
|
|
});
|
|
const watcher = newWatcher(syncFn, { debounceMs: 100 });
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
fs.rmSync(path.join(testDir, 'docs'), { recursive: true, force: true });
|
|
__emitWatchEventForTests(testDir, 'docs');
|
|
|
|
await waitFor(() => syncFn.mock.calls.length > 0, 5000);
|
|
// The sync body is async — poll the DB until the removal commits.
|
|
await waitFor(() => !cg.getFiles().some((f) => f.path.startsWith('docs/')), 5000);
|
|
|
|
const after = cg.getFiles().map((f) => f.path);
|
|
expect(after).toContain('root.ts');
|
|
expect(after.some((p) => p.startsWith('docs/'))).toBe(false);
|
|
|
|
watcher.stop();
|
|
});
|
|
|
|
it('should ignore .codegraph directory changes', async () => {
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 });
|
|
const watcher = newWatcher(syncFn, { debounceMs: 200 });
|
|
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
// A .codegraph event — FileWatcher's `isAlwaysIgnored` filter must drop
|
|
// it before scheduling sync.
|
|
__emitWatchEventForTests(testDir, '.codegraph/db.sqlite');
|
|
|
|
await new Promise((r) => setTimeout(r, 400));
|
|
expect(syncFn).not.toHaveBeenCalled();
|
|
|
|
watcher.stop();
|
|
});
|
|
|
|
it('should drop ignored/non-source paths but sync real source edits', async () => {
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 });
|
|
const watcher = newWatcher(syncFn, { debounceMs: 200 });
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
// node_modules is in the default-ignore set (#407) → dropped by the
|
|
// ignore matcher even without a .gitignore.
|
|
__emitWatchEventForTests(testDir, 'node_modules/dep/index.js');
|
|
// A normal source file still schedules sync (positive control).
|
|
__emitWatchEventForTests(testDir, 'src/live.ts');
|
|
await waitFor(() => syncFn.mock.calls.length > 0);
|
|
expect(syncFn).toHaveBeenCalled();
|
|
|
|
watcher.stop();
|
|
});
|
|
});
|
|
|
|
describe('scope config refresh (#1590)', () => {
|
|
// The matcher used to be built once in start() and kept for the watcher's
|
|
// lifetime, so a `codegraph.json` written AFTER the daemon started was
|
|
// invisible to the live watcher while `codegraph sync` honoured it: the
|
|
// CLI removed a newly excluded file and the watcher re-added it.
|
|
it('a codegraph.json edit rebuilds the matcher and forces a full sync', async () => {
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 });
|
|
const watcher = newWatcher(syncFn, { debounceMs: 100 });
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
// Scope the project after the watcher is already running.
|
|
fs.mkdirSync(path.join(testDir, 'skipme'));
|
|
fs.writeFileSync(path.join(testDir, 'skipme', 'b.ts'), 'export const b = 1;\n');
|
|
fs.writeFileSync(path.join(testDir, 'codegraph.json'), JSON.stringify({ exclude: ['skipme/'] }));
|
|
__emitWatchEventForTests(testDir, 'codegraph.json');
|
|
|
|
// The config edit schedules a FULL sync (no scoped path list): only the
|
|
// scan-diff can find the files the new scope drops or admits.
|
|
await waitFor(() => syncFn.mock.calls.length > 0);
|
|
expect(syncFn.mock.calls.length).toBe(1);
|
|
expect(syncFn.mock.calls[0]![0]).toBeUndefined();
|
|
expect(watcher.getPendingFiles()).toEqual([]);
|
|
await new Promise((r) => setTimeout(r, 50)); // let runSync settle
|
|
|
|
// An edit inside the newly excluded tree is dropped by the LIVE matcher:
|
|
// not pending, and no sync scheduled for it.
|
|
__emitWatchEventForTests(testDir, 'skipme/b.ts');
|
|
expect(watcher.getPendingFiles().map((p) => p.path)).not.toContain('skipme/b.ts');
|
|
await new Promise((r) => setTimeout(r, 300)); // > debounce
|
|
expect(syncFn.mock.calls.length).toBe(1);
|
|
|
|
// In-scope edits still sync, scoped to the edited path as before.
|
|
__emitWatchEventForTests(testDir, 'src/index.ts');
|
|
await waitFor(() => syncFn.mock.calls.length > 1);
|
|
expect(syncFn.mock.calls[1]![0]).toEqual(['src/index.ts']);
|
|
|
|
watcher.stop();
|
|
});
|
|
|
|
it('a root .gitignore edit is a scope change too', async () => {
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 });
|
|
const watcher = newWatcher(syncFn, { debounceMs: 100 });
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
fs.mkdirSync(path.join(testDir, 'gen'));
|
|
fs.writeFileSync(path.join(testDir, 'gen', 'out.ts'), 'export const g = 1;\n');
|
|
fs.writeFileSync(path.join(testDir, '.gitignore'), 'gen/\n');
|
|
__emitWatchEventForTests(testDir, '.gitignore');
|
|
|
|
await waitFor(() => syncFn.mock.calls.length > 0);
|
|
expect(syncFn.mock.calls[0]![0]).toBeUndefined();
|
|
await new Promise((r) => setTimeout(r, 50));
|
|
|
|
__emitWatchEventForTests(testDir, 'gen/out.ts');
|
|
expect(watcher.getPendingFiles().map((p) => p.path)).not.toContain('gen/out.ts');
|
|
await new Promise((r) => setTimeout(r, 300));
|
|
expect(syncFn.mock.calls.length).toBe(1);
|
|
|
|
watcher.stop();
|
|
});
|
|
|
|
it('info/exclude patterns drop worktree paths from pending (#1728)', async () => {
|
|
const { execFileSync } = await import('child_process');
|
|
// Re-init the testDir as a real git repo so buildScopeIgnore can read
|
|
// .git/info/exclude (createTempDir fixtures are usually plain dirs).
|
|
execFileSync('git', ['init', '-q'], { cwd: testDir, stdio: 'pipe' });
|
|
fs.mkdirSync(path.join(testDir, '.claude', 'worktrees', 'w1', 'src'), { recursive: true });
|
|
fs.writeFileSync(
|
|
path.join(testDir, '.claude', 'worktrees', 'w1', 'src', 'x.ts'),
|
|
'export const x = 1;\n',
|
|
);
|
|
fs.writeFileSync(
|
|
path.join(testDir, '.git', 'info', 'exclude'),
|
|
'**/.claude/worktrees/\n',
|
|
);
|
|
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 });
|
|
const watcher = newWatcher(syncFn, { debounceMs: 100 });
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
__emitWatchEventForTests(testDir, '.claude/worktrees/w1/src/x.ts');
|
|
expect(watcher.getPendingFiles().map((p) => p.path)).not.toContain(
|
|
'.claude/worktrees/w1/src/x.ts',
|
|
);
|
|
await new Promise((r) => setTimeout(r, 300));
|
|
expect(syncFn).not.toHaveBeenCalled();
|
|
|
|
// In-scope edits still schedule a scoped sync.
|
|
fs.writeFileSync(path.join(testDir, 'src', 'ok.ts'), 'export const ok = 1;\n');
|
|
__emitWatchEventForTests(testDir, 'src/ok.ts');
|
|
await waitFor(() => syncFn.mock.calls.length > 0);
|
|
expect(syncFn.mock.calls[0]![0]).toEqual(['src/ok.ts']);
|
|
|
|
watcher.stop();
|
|
});
|
|
|
|
it('a nested .gitignore inside the scope forces a full sync', async () => {
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 });
|
|
const watcher = newWatcher(syncFn, { debounceMs: 100 });
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
fs.mkdirSync(path.join(testDir, 'sub'));
|
|
fs.writeFileSync(path.join(testDir, 'sub', '.gitignore'), 'build/\n');
|
|
__emitWatchEventForTests(testDir, 'sub/.gitignore');
|
|
|
|
await waitFor(() => syncFn.mock.calls.length > 0);
|
|
expect(syncFn.mock.calls[0]![0]).toBeUndefined();
|
|
|
|
watcher.stop();
|
|
});
|
|
|
|
it('a .gitignore under an ignored tree (npm install churn) schedules nothing', async () => {
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 });
|
|
const watcher = newWatcher(syncFn, { debounceMs: 100 });
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
fs.mkdirSync(path.join(testDir, 'node_modules', 'pkg'), { recursive: true });
|
|
fs.writeFileSync(path.join(testDir, 'node_modules', 'pkg', '.gitignore'), 'lib/\n');
|
|
__emitWatchEventForTests(testDir, 'node_modules/pkg/.gitignore');
|
|
|
|
await new Promise((r) => setTimeout(r, 300));
|
|
expect(syncFn).not.toHaveBeenCalled();
|
|
|
|
watcher.stop();
|
|
});
|
|
|
|
it('removing the exclude again readmits the tree', async () => {
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 });
|
|
const watcher = newWatcher(syncFn, { debounceMs: 100 });
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
fs.mkdirSync(path.join(testDir, 'skipme'));
|
|
fs.writeFileSync(path.join(testDir, 'skipme', 'b.ts'), 'export const b = 1;\n');
|
|
const cfg = path.join(testDir, 'codegraph.json');
|
|
fs.writeFileSync(cfg, JSON.stringify({ exclude: ['skipme/'] }));
|
|
__emitWatchEventForTests(testDir, 'codegraph.json');
|
|
await waitFor(() => syncFn.mock.calls.length > 0);
|
|
await new Promise((r) => setTimeout(r, 50));
|
|
__emitWatchEventForTests(testDir, 'skipme/b.ts');
|
|
expect(watcher.getPendingFiles().map((p) => p.path)).not.toContain('skipme/b.ts');
|
|
|
|
// Drop the exclude. The loader is mtime-keyed, so make sure the second
|
|
// write carries a distinct mtime even on a coarse-timestamp filesystem.
|
|
fs.writeFileSync(cfg, JSON.stringify({}));
|
|
const later = new Date(Date.now() + 5000);
|
|
fs.utimesSync(cfg, later, later);
|
|
__emitWatchEventForTests(testDir, 'codegraph.json');
|
|
await waitFor(() => syncFn.mock.calls.length > 1);
|
|
expect(syncFn.mock.calls[1]![0]).toBeUndefined();
|
|
await new Promise((r) => setTimeout(r, 50));
|
|
|
|
__emitWatchEventForTests(testDir, 'skipme/b.ts');
|
|
expect(watcher.getPendingFiles().map((p) => p.path)).toContain('skipme/b.ts');
|
|
|
|
watcher.stop();
|
|
});
|
|
});
|
|
|
|
describe('pending file tracking (#403)', () => {
|
|
it('should ignore events whose filesystem metadata is already indexed (#1451)', async () => {
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 });
|
|
const isFileStateCurrent = vi.fn().mockReturnValue(true);
|
|
const watcher = newWatcher(
|
|
syncFn,
|
|
{ debounceMs: 100 },
|
|
isFileStateCurrent
|
|
);
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
__emitWatchEventForTests(testDir, 'src/index.ts');
|
|
|
|
expect(isFileStateCurrent).toHaveBeenCalledWith('src/index.ts');
|
|
expect(watcher.getPendingFiles()).toEqual([]);
|
|
await new Promise((r) => setTimeout(r, 200));
|
|
expect(syncFn).not.toHaveBeenCalled();
|
|
|
|
watcher.stop();
|
|
});
|
|
|
|
it('should keep an event when the metadata check fails open (#1451)', async () => {
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 1, durationMs: 10 });
|
|
const isFileStateCurrent = vi.fn(() => {
|
|
throw new Error('database busy');
|
|
});
|
|
const watcher = newWatcher(
|
|
syncFn,
|
|
{ debounceMs: 2000 },
|
|
isFileStateCurrent
|
|
);
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
__emitWatchEventForTests(testDir, 'src/index.ts');
|
|
|
|
expect(watcher.getPendingFiles().map((p) => p.path)).toContain('src/index.ts');
|
|
|
|
watcher.stop();
|
|
});
|
|
|
|
it('should expose edited paths via getPendingFiles before sync fires', async () => {
|
|
// Slow debounce — pending entries are visible until the debounce fires.
|
|
// The synthetic event is synchronous, so we can assert immediately.
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 1, durationMs: 10 });
|
|
const watcher = newWatcher(syncFn, { debounceMs: 2000 });
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
expect(watcher.getPendingFiles()).toEqual([]);
|
|
|
|
__emitWatchEventForTests(testDir, 'src/pending.ts');
|
|
|
|
const pending = watcher.getPendingFiles();
|
|
const paths = pending.map((p) => p.path);
|
|
expect(paths).toContain('src/pending.ts');
|
|
const entry = pending.find((p) => p.path === 'src/pending.ts')!;
|
|
expect(entry.firstSeenMs).toBeGreaterThan(0);
|
|
expect(entry.lastSeenMs).toBeGreaterThanOrEqual(entry.firstSeenMs);
|
|
// No sync running yet → indexing flag is false.
|
|
expect(entry.indexing).toBe(false);
|
|
|
|
watcher.stop();
|
|
});
|
|
|
|
it('should clear an entry only after a successful sync absorbing that edit', async () => {
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 1, durationMs: 10 });
|
|
const watcher = newWatcher(syncFn, { debounceMs: 200 });
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
__emitWatchEventForTests(testDir, 'src/fresh.ts');
|
|
|
|
// Watcher saw the change → pendingFiles has the entry IMMEDIATELY.
|
|
expect(watcher.getPendingFiles().some((p) => p.path === 'src/fresh.ts')).toBe(true);
|
|
|
|
// Wait through debounce + sync; the entry should drop out.
|
|
await waitFor(() => syncFn.mock.calls.length > 0);
|
|
await waitFor(() => !watcher.getPendingFiles().some((p) => p.path === 'src/fresh.ts'));
|
|
|
|
expect(watcher.getPendingFiles()).toEqual([]);
|
|
watcher.stop();
|
|
});
|
|
|
|
it('should keep entries unchanged when sync fails (rescheduled work sees the same set)', async () => {
|
|
// No initial-scan-triggered sync, so syncFn outcomes line up 1:1 with
|
|
// explicit events.
|
|
const syncFn = vi
|
|
.fn()
|
|
.mockRejectedValueOnce(new Error('boom')) // first sync rejects
|
|
.mockResolvedValueOnce({ filesChanged: 1, durationMs: 10 }); // retry succeeds
|
|
const onSyncError = vi.fn();
|
|
const watcher = newWatcher(syncFn, { debounceMs: 100, onSyncError });
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
__emitWatchEventForTests(testDir, 'src/will-fail.ts');
|
|
|
|
// Wait for the sync to reject.
|
|
await waitFor(() => onSyncError.mock.calls.length > 0);
|
|
|
|
// The file is STILL in pendingFiles — failure didn't drop it.
|
|
const after = watcher.getPendingFiles();
|
|
expect(after.some((p) => p.path === 'src/will-fail.ts')).toBe(true);
|
|
|
|
// Retry resolves automatically; entry clears.
|
|
await waitFor(
|
|
() => !watcher.getPendingFiles().some((p) => p.path === 'src/will-fail.ts'),
|
|
);
|
|
|
|
watcher.stop();
|
|
});
|
|
|
|
it('should retain pending files and retry when syncFn throws LockUnavailableError (#449)', async () => {
|
|
// CodeGraph.watch() converts the cross-process lock-failure no-op
|
|
// into LockUnavailableError so the watcher's retry path picks it up
|
|
// instead of falsely clearing pendingFiles. This test exercises the
|
|
// contract directly.
|
|
const syncFn = vi
|
|
.fn()
|
|
.mockRejectedValueOnce(new LockUnavailableError())
|
|
.mockResolvedValueOnce({ filesChanged: 1, durationMs: 10 });
|
|
const onSyncComplete = vi.fn();
|
|
const onSyncError = vi.fn();
|
|
const watcher = newWatcher(syncFn, {
|
|
debounceMs: 100,
|
|
onSyncComplete,
|
|
onSyncError,
|
|
});
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
|
|
__emitWatchEventForTests(testDir, 'src/locked.ts');
|
|
|
|
await waitFor(() => syncFn.mock.calls.length >= 1);
|
|
expect(watcher.getPendingFiles().some((p) => p.path === 'src/locked.ts')).toBe(true);
|
|
// A held-lock no-op is not a sync failure — onSyncError stays quiet
|
|
// so a long-running external indexer doesn't spam stderr every cycle.
|
|
expect(onSyncError).not.toHaveBeenCalled();
|
|
expect(onSyncComplete).not.toHaveBeenCalled();
|
|
|
|
await waitFor(() => syncFn.mock.calls.length >= 2);
|
|
await waitFor(
|
|
() => !watcher.getPendingFiles().some((p) => p.path === 'src/locked.ts'),
|
|
);
|
|
|
|
expect(onSyncComplete).toHaveBeenCalledTimes(1);
|
|
expect(onSyncComplete).toHaveBeenCalledWith({ filesChanged: 1, durationMs: 10 });
|
|
expect(onSyncError).not.toHaveBeenCalled();
|
|
|
|
watcher.stop();
|
|
});
|
|
});
|
|
|
|
describe('callbacks', () => {
|
|
it('should call onSyncComplete after successful sync', async () => {
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 2, durationMs: 50 });
|
|
const onSyncComplete = vi.fn();
|
|
const watcher = newWatcher(syncFn, {
|
|
debounceMs: 200,
|
|
onSyncComplete,
|
|
});
|
|
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
__emitWatchEventForTests(testDir, 'src/test.ts');
|
|
|
|
await waitFor(() => onSyncComplete.mock.calls.length > 0);
|
|
expect(onSyncComplete).toHaveBeenCalledWith({ filesChanged: 2, durationMs: 50 });
|
|
|
|
watcher.stop();
|
|
});
|
|
|
|
it('should call onSyncError when sync throws', async () => {
|
|
const syncFn = vi.fn().mockRejectedValue(new Error('sync failed'));
|
|
const onSyncError = vi.fn();
|
|
const watcher = newWatcher(syncFn, {
|
|
debounceMs: 200,
|
|
onSyncError,
|
|
});
|
|
|
|
watcher.start();
|
|
await watcher.waitUntilReady();
|
|
__emitWatchEventForTests(testDir, 'src/test.ts');
|
|
|
|
await waitFor(() => onSyncError.mock.calls.length > 0);
|
|
expect(onSyncError).toHaveBeenCalled();
|
|
expect(onSyncError.mock.calls[0]![0]).toBeInstanceOf(Error);
|
|
|
|
watcher.stop();
|
|
});
|
|
});
|
|
|
|
describe('CodeGraph integration', () => {
|
|
let cg: CodeGraph;
|
|
|
|
it('should watch and unwatch via CodeGraph API', async () => {
|
|
cg = initGraph(testDir, {
|
|
config: { include: ['**/*.ts'], exclude: [] },
|
|
});
|
|
await cg.indexAll();
|
|
|
|
expect(cg.isWatching()).toBe(false);
|
|
|
|
const started = cg.watch({ debounceMs: 200, inertForTests: true });
|
|
expect(started).toBe(true);
|
|
expect(cg.isWatching()).toBe(true);
|
|
|
|
cg.unwatch();
|
|
expect(cg.isWatching()).toBe(false);
|
|
});
|
|
|
|
it('should stop watching on close', async () => {
|
|
cg = initGraph(testDir, {
|
|
config: { include: ['**/*.ts'], exclude: [] },
|
|
});
|
|
await cg.indexAll();
|
|
|
|
cg.watch({ debounceMs: 200, inertForTests: true });
|
|
expect(cg.isWatching()).toBe(true);
|
|
|
|
cg.close();
|
|
// After close, isWatching should be false
|
|
// (we can't call isWatching after close since DB is closed,
|
|
// but we verify no errors are thrown)
|
|
});
|
|
|
|
it('should auto-sync when files change while watching (real fs.watch end-to-end)', async () => {
|
|
// The one test that exercises the genuine native watcher: a real file
|
|
// write must propagate through fs.watch → debounce → sync into the graph.
|
|
cg = initGraph(testDir, {
|
|
config: { include: ['**/*.ts'], exclude: [] },
|
|
});
|
|
await cg.indexAll();
|
|
|
|
const initialStats = cg.getStats();
|
|
const initialNodes = initialStats.nodeCount;
|
|
|
|
cg.watch({ debounceMs: 300 });
|
|
// Let the watcher install before writing, so the event isn't missed.
|
|
await new Promise((r) => setTimeout(r, 100));
|
|
|
|
// Real fs write — no synthetic event. The live watcher must catch it.
|
|
fs.writeFileSync(
|
|
path.join(testDir, 'src', 'added.ts'),
|
|
'export function added() { return 42; }'
|
|
);
|
|
|
|
// Wait for auto-sync to pick it up (real OS event delivery + debounce).
|
|
await waitFor(() => {
|
|
const stats = cg.getStats();
|
|
return stats.nodeCount > initialNodes;
|
|
}, 8000);
|
|
|
|
// The new function should be in the graph.
|
|
const results = cg.searchNodes('added');
|
|
expect(results.length).toBeGreaterThan(0);
|
|
|
|
cg.unwatch();
|
|
});
|
|
|
|
it.runIf(process.platform === 'win32')(
|
|
'should ignore an NTFS access-only event but retain a real edit (#1451)',
|
|
async () => {
|
|
const filePath = path.join(testDir, 'src', 'index.ts');
|
|
cg = initGraph(testDir, {
|
|
config: { include: ['**/*.ts'], exclude: [] },
|
|
});
|
|
await cg.indexAll();
|
|
|
|
cg.watch({ debounceMs: 2000, inertForTests: true });
|
|
await cg.waitUntilWatcherReady();
|
|
|
|
const before = fs.statSync(filePath);
|
|
fs.utimesSync(
|
|
filePath,
|
|
new Date(before.atimeMs + 2000),
|
|
new Date(before.mtimeMs)
|
|
);
|
|
__emitWatchEventForTests(testDir, 'src/index.ts');
|
|
|
|
expect(cg.getPendingFiles()).toEqual([]);
|
|
|
|
fs.appendFileSync(filePath, '\nexport const changed = true;\n');
|
|
__emitWatchEventForTests(testDir, 'src/index.ts');
|
|
|
|
expect(cg.getPendingFiles().map((p) => p.path)).toContain('src/index.ts');
|
|
|
|
cg.unwatch();
|
|
}
|
|
);
|
|
});
|
|
|
|
describe('Windows indexed metadata guard (#1451)', () => {
|
|
it.runIf(process.platform === 'win32')('ignores native atime and separate-process read events, then reconciles writes and deletion', async () => {
|
|
const file = path.join(testDir, 'src', 'index.ts');
|
|
const cg = initGraph(testDir, { config: { include: ['**/*.ts'], exclude: [] } });
|
|
await cg.indexAll();
|
|
const synced = vi.fn();
|
|
// Observe real OS delivery through the same stream CodeGraph consumes.
|
|
// No injected events: a passing negative assertion must see a native event.
|
|
const nativeWatch = fs.watch;
|
|
let events = 0;
|
|
__setFsWatchForTests(((dir: fs.PathLike, options: fs.WatchOptions, listener: fs.WatchListener<string>) =>
|
|
nativeWatch(dir, options, (event, filename) => {
|
|
listener(event, filename);
|
|
if (String(filename).replace(/\\/g, '/') === 'src/index.ts') events++;
|
|
})) as typeof fs.watch);
|
|
expect(cg.watch({ debounceMs: 2000, onSyncComplete: synced })).toBe(true);
|
|
await cg.waitUntilWatcherReady();
|
|
const before = fs.statSync(file);
|
|
const quotedFile = file.replace(/'/g, "''");
|
|
execFileSync('powershell.exe', ['-NoProfile', '-Command',
|
|
`(Get-Item -LiteralPath '${quotedFile}').LastAccessTimeUtc = [DateTime]::UtcNow.AddDays(-2)`]);
|
|
await waitFor(() => events > 0, 5000);
|
|
expect(fs.statSync(file).mtimeMs).toBe(before.mtimeMs);
|
|
expect(fs.statSync(file).size).toBe(before.size);
|
|
expect(cg.getPendingFiles()).toEqual([]);
|
|
events = 0;
|
|
execFileSync(process.execPath, ['-e', 'require("fs").readFileSync(process.argv[1])', file]);
|
|
// NTFS can delay/coalesce automatic last-access updates. The explicit
|
|
// atime event above guarantees native coverage even on such volumes.
|
|
await new Promise(resolve => setTimeout(resolve, 250));
|
|
expect(fs.statSync(file).mtimeMs).toBe(before.mtimeMs);
|
|
expect(fs.statSync(file).size).toBe(before.size);
|
|
expect(cg.getPendingFiles()).toEqual([]);
|
|
expect(synced).not.toHaveBeenCalled();
|
|
|
|
fs.appendFileSync(file, '\nexport const nativeEdit1451 = true;\n');
|
|
await waitFor(() => cg.getPendingFiles().some(p => p.path === 'src/index.ts'));
|
|
await waitFor(() => cg.getNodesByName('nativeEdit1451').length > 0 && !cg.isIndexing(), 8000);
|
|
await waitFor(() => cg.getPendingFiles().length === 0);
|
|
fs.unlinkSync(file);
|
|
await waitFor(() => cg.getPendingFiles().some(p => p.path === 'src/index.ts'));
|
|
await waitFor(() => cg.getNodesByName('nativeEdit1451').length === 0 && !cg.isIndexing(), 8000);
|
|
}, 30000);
|
|
|
|
it.runIf(process.platform === 'win32').each(['unknown', 'deleted', 'inaccessible', 'unverifiable', 'mtime-only'])(
|
|
'keeps %s files pending', async (state) => {
|
|
const file = path.join(testDir, 'src', 'index.ts');
|
|
const cg = initGraph(testDir, { config: { include: ['**/*.ts'], exclude: [] } });
|
|
await cg.indexAll();
|
|
cg.watch({ debounceMs: 10000, inertForTests: true });
|
|
await cg.waitUntilWatcherReady();
|
|
let relative = 'src/index.ts';
|
|
if (state === 'unknown') {
|
|
relative = 'src/new.ts';
|
|
fs.writeFileSync(path.join(testDir, relative), 'export const newFile = 1;');
|
|
} else if (state === 'deleted') {
|
|
fs.unlinkSync(file);
|
|
} else if (state === 'mtime-only') {
|
|
const stat = fs.statSync(file);
|
|
fs.writeFileSync(file, 'export const x = 2;');
|
|
fs.utimesSync(file, stat.atime, new Date(stat.mtimeMs + 2000));
|
|
} else {
|
|
const statSync = fs.statSync;
|
|
vi.spyOn(fs, 'statSync').mockImplementation(((...args: Parameters<typeof fs.statSync>) => {
|
|
if (String(args[0]) === file) {
|
|
if (state === 'inaccessible') throw Object.assign(new Error('access denied'), { code: 'EACCES' });
|
|
const stat = statSync(file);
|
|
stat.mtimeMs = NaN;
|
|
return stat;
|
|
}
|
|
return statSync(...args);
|
|
}) as typeof fs.statSync);
|
|
}
|
|
__emitWatchEventForTests(testDir, relative);
|
|
expect(cg.getPendingFiles().map(p => p.path)).toContain(relative);
|
|
vi.restoreAllMocks();
|
|
}
|
|
);
|
|
});
|
|
|
|
describe('symlink directory watching (#770)', () => {
|
|
let cg: CodeGraph | undefined;
|
|
const externalDirs: string[] = [];
|
|
const watchers: FileWatcher[] = [];
|
|
const external = () => {
|
|
const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'codegraph-linked-'));
|
|
externalDirs.push(dir);
|
|
return dir;
|
|
};
|
|
// Junctions exercise Windows directory links without requiring symlink privileges.
|
|
const link = (target: string, name: string) =>
|
|
fs.symlinkSync(target, name, process.platform === 'win32' ? 'junction' : 'dir');
|
|
const has = (name: string) => cg!.getNodesByName(name).length > 0;
|
|
const start = async () => {
|
|
cg = initGraph(testDir, { config: { include: ['**/*.ts'], exclude: [] } });
|
|
await cg.indexAll();
|
|
expect(cg.watch({ debounceMs: 100 })).toBe(true);
|
|
// FSEvents can coalesce writes made while a new stream is being registered.
|
|
await new Promise(resolve => setTimeout(resolve, 700));
|
|
};
|
|
// fs.watch() returns before macOS registers the stream: libuv serves every
|
|
// watch in a process from one FSEvents stream, rebuilt on its own thread
|
|
// after each watch/close, and an edit made before that lands is never
|
|
// reported. Under full-suite load that dropped the edit made right after a
|
|
// restart. Poke a probe under `dir` until the watcher reports it, so the
|
|
// edit under test is made once, against a stream known to be live.
|
|
const untilLive = (dir: string) => {
|
|
const probe = path.join(dir, 'watch-probe.ts');
|
|
const rel = path.relative(testDir, probe).replace(/\\/g, '/');
|
|
return waitFor(() => {
|
|
if (cg!.getPendingFiles().some(p => p.path === rel)) return true;
|
|
fs.writeFileSync(probe, `// ${Date.now()}\n`);
|
|
return false;
|
|
}, 8000);
|
|
};
|
|
|
|
afterEach(() => {
|
|
cg = undefined;
|
|
for (const watcher of watchers.splice(0)) watcher.stop();
|
|
for (const dir of externalDirs.splice(0)) fs.rmSync(dir, { recursive: true, force: true });
|
|
vi.unstubAllEnvs();
|
|
});
|
|
|
|
it('auto-syncs edits, creates and deletes through an external directory link', async () => {
|
|
const dir = external();
|
|
fs.mkdirSync(path.join(dir, 'src'));
|
|
const file = path.join(dir, 'src', 'item.ts');
|
|
fs.writeFileSync(file, 'export function linkedBefore() {}');
|
|
link(dir, path.join(testDir, 'linked-project'));
|
|
await start();
|
|
expect(has('linkedBefore')).toBe(true);
|
|
fs.writeFileSync(file, 'export function linkedAfter() {}');
|
|
await waitFor(() => has('linkedAfter') && !has('linkedBefore'), 8000);
|
|
expect(cg!.getNodesByName('linkedAfter')[0].filePath).toBe('linked-project/src/item.ts');
|
|
fs.mkdirSync(path.join(dir, 'new'));
|
|
fs.writeFileSync(path.join(dir, 'new', 'added.ts'), 'export function linkedAdded() {}');
|
|
await waitFor(() => has('linkedAdded'), 8000);
|
|
fs.unlinkSync(file);
|
|
await waitFor(() => !has('linkedAfter'), 8000);
|
|
}, 30000);
|
|
|
|
it('watches both targets of a real cycle and deduplicates aliases', async () => {
|
|
const a = external();
|
|
const b = external();
|
|
link(b, path.join(a, 'toB'));
|
|
link(a, path.join(b, 'toA'));
|
|
link(testDir, path.join(a, 'toRoot'));
|
|
link(a, path.join(testDir, 'linked'));
|
|
link(a, path.join(testDir, 'duplicate'));
|
|
await start();
|
|
fs.writeFileSync(path.join(a, 'a.ts'), 'export function cycleAddedA() {}');
|
|
fs.writeFileSync(path.join(b, 'b.ts'), 'export function cycleAddedB() {}');
|
|
await waitFor(() => has('cycleAddedA') && has('cycleAddedB'), 8000);
|
|
expect(cg!.getNodesByName('cycleAddedA')).toHaveLength(1);
|
|
expect(cg!.getNodesByName('cycleAddedB')).toHaveLength(1);
|
|
}, 15000);
|
|
|
|
it('discovers new links, retargets them, removes stale paths and restarts', async () => {
|
|
const a = external();
|
|
const b = external();
|
|
fs.writeFileSync(path.join(a, 'a.ts'), 'export function firstTarget() {}');
|
|
fs.writeFileSync(path.join(b, 'b.ts'), 'export function secondTarget() {}');
|
|
await start();
|
|
const alias = path.join(testDir, 'linked');
|
|
link(a, alias);
|
|
await waitFor(() => has('firstTarget'), 8000);
|
|
fs.unlinkSync(alias);
|
|
link(b, alias);
|
|
await waitFor(() => has('secondTarget') && !has('firstTarget'), 8000);
|
|
await untilLive(alias);
|
|
fs.writeFileSync(path.join(b, 'b.ts'), 'export function retargetEdit() {}');
|
|
await waitFor(() => has('retargetEdit'), 8000);
|
|
cg!.unwatch();
|
|
expect(cg!.watch({ debounceMs: 100 })).toBe(true);
|
|
await untilLive(alias);
|
|
fs.writeFileSync(path.join(b, 'b.ts'), 'export function restartedEdit() {}');
|
|
await waitFor(() => has('restartedEdit'), 8000);
|
|
fs.unlinkSync(alias);
|
|
await waitFor(() => !has('restartedEdit'), 8000);
|
|
}, 45000);
|
|
|
|
it('refreshes excluded link scope without watching ignored targets', async () => {
|
|
const dir = external();
|
|
link(dir, path.join(testDir, 'linked'));
|
|
fs.writeFileSync(path.join(dir, 'a.ts'), 'export function scopeLinked() {}');
|
|
fs.writeFileSync(path.join(testDir, '.gitignore'), 'linked/\n');
|
|
await start();
|
|
expect(has('scopeLinked')).toBe(false);
|
|
fs.writeFileSync(path.join(testDir, '.gitignore'), '');
|
|
await waitFor(() => has('scopeLinked'), 8000);
|
|
fs.writeFileSync(path.join(dir, 'a.ts'), 'export function scopeEdited() {}');
|
|
await waitFor(() => has('scopeEdited'), 8000);
|
|
fs.writeFileSync(path.join(testDir, '.gitignore'), 'linked/\n');
|
|
await waitFor(() => !has('scopeEdited'), 8000);
|
|
}, 30000);
|
|
|
|
it('bounds watch handles, skips ignored targets and closes every handle on stop', () => {
|
|
const dir = external();
|
|
link(dir, path.join(testDir, 'linked'));
|
|
link(dir, path.join(testDir, 'duplicate'));
|
|
link(testDir, path.join(dir, 'cycle'));
|
|
const ignored = external();
|
|
link(ignored, path.join(testDir, 'node_modules'));
|
|
const opened: string[] = [];
|
|
const closed: string[] = [];
|
|
__setFsWatchForTests(((dir: fs.PathLike) => {
|
|
opened.push(String(dir));
|
|
const w = new EventEmitter() as fs.FSWatcher;
|
|
w.close = () => { closed.push(String(dir)); };
|
|
return w;
|
|
}) as typeof fs.watch);
|
|
const watcher = new FileWatcher(testDir, async () => ({ filesChanged: 0, durationMs: 0 }));
|
|
watchers.push(watcher);
|
|
expect(watcher.start()).toBe(true);
|
|
expect(opened.some(d => d.includes('node_modules'))).toBe(false);
|
|
expect(opened.filter(d => fs.realpathSync(d) === fs.realpathSync(dir))).toHaveLength(1);
|
|
watcher.stop();
|
|
expect(closed.sort()).toEqual(opened.sort());
|
|
expect(watcher.start()).toBe(true);
|
|
watcher.stop();
|
|
expect(closed.sort()).toEqual(opened.sort());
|
|
});
|
|
|
|
it.runIf(process.platform === 'darwin' || process.platform === 'win32')('caps supplemental recursive streams and degrades on their exhaustion', () => {
|
|
link(external(), path.join(testDir, 'first'));
|
|
link(external(), path.join(testDir, 'second'));
|
|
vi.stubEnv('CODEGRAPH_MAX_DIR_WATCHES', '1');
|
|
const close = vi.fn();
|
|
const watch = vi.fn(() => {
|
|
const w = new EventEmitter() as fs.FSWatcher;
|
|
w.close = close;
|
|
return w;
|
|
});
|
|
__setFsWatchForTests(watch as typeof fs.watch);
|
|
const watcher = new FileWatcher(testDir, async () => ({ filesChanged: 0, durationMs: 0 }));
|
|
watchers.push(watcher);
|
|
expect(watcher.start()).toBe(true);
|
|
expect(watch).toHaveBeenCalledTimes(2); // root + capped supplemental stream
|
|
watcher.stop();
|
|
expect(close).toHaveBeenCalledTimes(2);
|
|
watch.mockImplementationOnce(() => {
|
|
const w = new EventEmitter() as fs.FSWatcher;
|
|
w.close = close;
|
|
return w;
|
|
}).mockImplementation(() => { throw Object.assign(new Error('EMFILE'), { code: 'EMFILE' }); });
|
|
expect(watcher.start()).toBe(false);
|
|
expect(watcher.isDegraded()).toBe(true);
|
|
expect(close).toHaveBeenCalledTimes(3);
|
|
});
|
|
|
|
// On Windows, libuv reports a watched folder that is being deleted by the
|
|
// folder's own absolute path (`\\?\D:\…`), thousands of times a second,
|
|
// until the stream is closed: a link whose target was deleted held a core
|
|
// for good (#2487). These drive that event shape through a fake fs.watch.
|
|
type FakeStream = { listener: (event: string, name: string | null) => void; closed: number };
|
|
const fakeStreams = () => {
|
|
const streams = new Map<string, FakeStream>();
|
|
const opened: string[] = [];
|
|
__setFsWatchForTests(((dir: fs.PathLike, _opts: unknown, listener: FakeStream['listener']) => {
|
|
const stream: FakeStream = { listener, closed: 0 };
|
|
streams.set(String(dir), stream);
|
|
opened.push(String(dir));
|
|
const w = new EventEmitter() as fs.FSWatcher;
|
|
w.close = () => { stream.closed += 1; };
|
|
return w;
|
|
}) as unknown as typeof fs.watch);
|
|
return { streams, opened };
|
|
};
|
|
const selfName = (dir: string) => (process.platform === 'win32' ? `\\\\?\\${dir}` : dir);
|
|
|
|
it('closes a linked folder\'s stream once its target is deleted, with one check per burst (#2487)', async () => {
|
|
const dir = external();
|
|
fs.writeFileSync(path.join(dir, 'lib.ts'), 'export const lib = 1;');
|
|
const linked = path.join(testDir, 'libs');
|
|
link(dir, linked);
|
|
const { streams, opened } = fakeStreams();
|
|
const syncFn = vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 });
|
|
const onDegraded = vi.fn();
|
|
const watcher = new FileWatcher(testDir, syncFn, { debounceMs: 100, onDegraded });
|
|
watchers.push(watcher);
|
|
expect(watcher.start()).toBe(true);
|
|
const stream = streams.get(linked)!;
|
|
expect(stream).toBeDefined();
|
|
|
|
// While the link still leads to its folder, the stream stays.
|
|
stream.listener('rename', selfName(linked));
|
|
await new Promise(resolve => setTimeout(resolve, 500));
|
|
expect(stream.closed).toBe(0);
|
|
|
|
fs.rmSync(dir, { recursive: true, force: true });
|
|
const fsCalls = ['statSync', 'lstatSync', 'realpathSync', 'existsSync'].map(name =>
|
|
vi.spyOn(fs, name as 'statSync'));
|
|
for (let i = 0; i < 10_000; i++) stream.listener('rename', selfName(linked));
|
|
expect(fsCalls.reduce((n, spy) => n + spy.mock.calls.length, 0)).toBe(0);
|
|
expect(syncFn).not.toHaveBeenCalled();
|
|
|
|
await waitFor(() => stream.closed === 1, 8000);
|
|
// The tree is re-read: the dangling link is not watched again, and a full
|
|
// sync drops what the folder held. The project itself stays watched.
|
|
await waitFor(() => syncFn.mock.calls.some(([paths]) => paths === undefined), 8000);
|
|
expect(opened.filter(d => d === linked)).toHaveLength(1);
|
|
expect(streams.get(testDir)?.closed ?? 0).toBe(0);
|
|
expect(watcher.isActive()).toBe(true);
|
|
expect(watcher.isDegraded()).toBe(false);
|
|
expect(onDegraded).not.toHaveBeenCalled();
|
|
for (let i = 0; i < 100; i++) stream.listener('rename', selfName(linked)); // already closed
|
|
await new Promise(resolve => setTimeout(resolve, 400));
|
|
expect(stream.closed).toBe(1);
|
|
});
|
|
|
|
it('degrades once, closing its stream, when the project folder itself is deleted (#2487)', async () => {
|
|
const root = external();
|
|
const { streams } = fakeStreams();
|
|
const onDegraded = vi.fn();
|
|
vi.spyOn(console, 'warn').mockImplementation(() => {});
|
|
const watcher = new FileWatcher(root, vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 }), {
|
|
debounceMs: 100,
|
|
onDegraded,
|
|
});
|
|
watchers.push(watcher);
|
|
expect(watcher.start()).toBe(true);
|
|
const stream = streams.get(root)!;
|
|
expect(stream).toBeDefined();
|
|
|
|
fs.rmSync(root, { recursive: true, force: true });
|
|
for (let i = 0; i < 10_000; i++) stream.listener('rename', selfName(root));
|
|
await waitFor(() => watcher.isDegraded(), 8000);
|
|
expect(watcher.getDegradedReason()).toContain('project folder was deleted');
|
|
expect(onDegraded).toHaveBeenCalledTimes(1);
|
|
expect(stream.closed).toBe(1);
|
|
expect(watcher.isActive()).toBe(false);
|
|
for (let i = 0; i < 100; i++) stream.listener('rename', selfName(root));
|
|
await new Promise(resolve => setTimeout(resolve, 400));
|
|
expect(onDegraded).toHaveBeenCalledTimes(1);
|
|
});
|
|
|
|
it.runIf(process.platform === 'win32')('ends the event storm of a real junction whose target is deleted (#2487)', async () => {
|
|
const dir = external();
|
|
fs.writeFileSync(path.join(dir, 'lib.ts'), 'export const lib = 1;');
|
|
const linked = path.join(testDir, 'libs');
|
|
link(dir, linked);
|
|
let linkEvents = 0;
|
|
const realWatch = fs.watch;
|
|
__setFsWatchForTests(((p: fs.PathLike, opts: fs.WatchOptions, listener: fs.WatchListener<string>) =>
|
|
realWatch(p, opts, (event, name) => {
|
|
if (String(p) === linked) linkEvents += 1;
|
|
listener(event, name);
|
|
})) as typeof fs.watch);
|
|
const watcher = new FileWatcher(testDir, vi.fn().mockResolvedValue({ filesChanged: 0, durationMs: 0 }), {
|
|
debounceMs: 100,
|
|
});
|
|
watchers.push(watcher);
|
|
expect(watcher.start()).toBe(true);
|
|
|
|
fs.rmSync(dir, { recursive: true, force: true });
|
|
// Quiet: no event at all on the link's stream for a whole half second.
|
|
let last = -1;
|
|
await waitFor(() => {
|
|
const quiet = linkEvents === last;
|
|
last = linkEvents;
|
|
return quiet;
|
|
}, 10_000, 500);
|
|
expect(watcher.isActive()).toBe(true);
|
|
expect(watcher.isDegraded()).toBe(false);
|
|
}, 20_000);
|
|
});
|
|
|
|
describe('scoped sync fast path (#watcher-scoped)', () => {
|
|
it('passes the exact pending paths to syncFn for plain file events', async () => {
|
|
const calls: (string[] | undefined)[] = [];
|
|
const syncFn: SyncFn = async (paths?: string[]) => {
|
|
calls.push(paths);
|
|
return { filesChanged: 1, durationMs: 5 };
|
|
};
|
|
const watcher = newWatcher(syncFn, { debounceMs: 30 });
|
|
expect(watcher.start()).toBe(true);
|
|
fs.writeFileSync(path.join(testDir, 'src', 'a.ts'), 'export const a = 1;');
|
|
__emitWatchEventForTests(testDir, 'src/a.ts');
|
|
await new Promise((r) => setTimeout(r, 500));
|
|
watcher.stop();
|
|
expect(calls.length).toBeGreaterThan(0);
|
|
expect(calls[0]).toEqual(['src/a.ts']);
|
|
});
|
|
|
|
it('falls back to a full sync (undefined paths) after a directory removal event', async () => {
|
|
const calls: (string[] | undefined)[] = [];
|
|
const syncFn: SyncFn = async (paths?: string[]) => {
|
|
calls.push(paths);
|
|
return { filesChanged: 0, durationMs: 5 };
|
|
};
|
|
const watcher = newWatcher(syncFn, { debounceMs: 30 });
|
|
expect(watcher.start()).toBe(true);
|
|
// A non-source path that does not exist on disk = the #1285 dir-removal shape.
|
|
__emitWatchEventForTests(testDir, 'src/removed-dir');
|
|
await new Promise((r) => setTimeout(r, 500));
|
|
watcher.stop();
|
|
expect(calls.length).toBeGreaterThan(0);
|
|
expect(calls[0]).toBeUndefined();
|
|
});
|
|
|
|
it.each([
|
|
['lock contention', () => new LockUnavailableError()],
|
|
['sync failure', () => new Error('injected sync failure')],
|
|
])('retries a full-only directory removal after %s (#1964)', async (_case, failure) => {
|
|
const syncFn = vi.fn()
|
|
.mockRejectedValueOnce(failure())
|
|
.mockResolvedValue({ filesChanged: 0, durationMs: 5 });
|
|
const watcher = newWatcher(syncFn, { debounceMs: 25 });
|
|
watcher.start();
|
|
try {
|
|
await watcher.waitUntilReady();
|
|
__emitWatchEventForTests(testDir, 'src/removed-dir');
|
|
await waitFor(() => syncFn.mock.calls.length >= 2, 4000);
|
|
expect(syncFn.mock.calls.map(call => call[0])).toEqual([undefined, undefined]);
|
|
} finally {
|
|
watcher.stop();
|
|
}
|
|
});
|
|
|
|
it('follows a scoped sync with a full scan when a directory is removed mid-sync (#1964)', async () => {
|
|
let release!: () => void;
|
|
const firstRun = new Promise<void>(resolve => { release = resolve; });
|
|
const calls: (string[] | undefined)[] = [];
|
|
const syncFn: SyncFn = async paths => {
|
|
calls.push(paths);
|
|
if (calls.length === 1) await firstRun;
|
|
return { filesChanged: 0, durationMs: 5 };
|
|
};
|
|
const watcher = newWatcher(syncFn, { debounceMs: 25 });
|
|
watcher.start();
|
|
try {
|
|
await watcher.waitUntilReady();
|
|
fs.writeFileSync(path.join(testDir, 'src', 'a.ts'), 'export const a = 1;');
|
|
__emitWatchEventForTests(testDir, 'src/a.ts');
|
|
await waitFor(() => calls.length === 1, 4000);
|
|
__emitWatchEventForTests(testDir, 'src/removed-dir');
|
|
release();
|
|
await waitFor(() => calls.length >= 2, 4000);
|
|
expect(calls).toEqual([['src/a.ts'], undefined]);
|
|
} finally {
|
|
release();
|
|
watcher.stop();
|
|
}
|
|
});
|
|
|
|
it('follows a scoped sync with a full scan when scope changes mid-sync (#1964)', async () => {
|
|
let release!: () => void;
|
|
const firstRun = new Promise<void>(resolve => { release = resolve; });
|
|
const calls: (string[] | undefined)[] = [];
|
|
const syncFn: SyncFn = async paths => {
|
|
calls.push(paths);
|
|
if (calls.length === 1) await firstRun;
|
|
return { filesChanged: 0, durationMs: 5 };
|
|
};
|
|
const watcher = newWatcher(syncFn, { debounceMs: 25 });
|
|
watcher.start();
|
|
try {
|
|
await watcher.waitUntilReady();
|
|
fs.writeFileSync(path.join(testDir, 'src', 'a.ts'), 'export const a = 1;');
|
|
__emitWatchEventForTests(testDir, 'src/a.ts');
|
|
await waitFor(() => calls.length === 1, 4000);
|
|
fs.writeFileSync(path.join(testDir, '.gitignore'), 'src/ignored/\n');
|
|
__emitWatchEventForTests(testDir, '.gitignore');
|
|
release();
|
|
await waitFor(() => calls.length >= 2, 4000);
|
|
expect(calls).toEqual([['src/a.ts'], undefined]);
|
|
} finally {
|
|
release();
|
|
watcher.stop();
|
|
}
|
|
});
|
|
|
|
it('reconciles again when directory topology changes during a full sync', async () => {
|
|
let release!: () => void;
|
|
const firstRun = new Promise<void>(resolve => { release = resolve; });
|
|
const calls: (string[] | undefined)[] = [];
|
|
const watcher = newWatcher(async paths => {
|
|
calls.push(paths);
|
|
if (calls.length === 1) await firstRun;
|
|
return { filesChanged: 0, durationMs: 1 };
|
|
}, { debounceMs: 25 });
|
|
watcher.start();
|
|
try {
|
|
__emitWatchEventForTests(testDir, 'removed-link');
|
|
await waitFor(() => calls.length === 1);
|
|
__emitWatchEventForTests(testDir, 'another-removed-link');
|
|
release();
|
|
await waitFor(() => calls.length === 2);
|
|
expect(calls).toEqual([undefined, undefined]);
|
|
} finally {
|
|
release();
|
|
watcher.stop();
|
|
}
|
|
});
|
|
|
|
it('a lone file event fires on the quick window, well before the full debounce', async () => {
|
|
const calls: (string[] | undefined)[] = [];
|
|
const syncFn: SyncFn = async (paths?: string[]) => {
|
|
calls.push(paths);
|
|
return { filesChanged: 1, durationMs: 1 };
|
|
};
|
|
// Full debounce is deliberately huge; the quick window (300ms) must win
|
|
// for a single pending file.
|
|
const watcher = newWatcher(syncFn, { debounceMs: 30_000 });
|
|
expect(watcher.start()).toBe(true);
|
|
fs.writeFileSync(path.join(testDir, 'src', 'quick.ts'), 'export const q = 1;');
|
|
__emitWatchEventForTests(testDir, 'src/quick.ts');
|
|
await new Promise((r) => setTimeout(r, 1500));
|
|
watcher.stop();
|
|
expect(calls.length).toBe(1);
|
|
expect(calls[0]).toEqual(['src/quick.ts']);
|
|
});
|
|
});
|
|
});
|