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fix(coding-agent,mom): retry fs watchers on async errors closes #3564
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Mario Zechner 2026-04-22 23:03:19 +02:00
parent cc76e73c05
commit f3a2c9d05e
9 changed files with 300 additions and 88 deletions
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31
packages/coding-agent/test/footer-data-provider.test.ts
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@ -1,5 +1,5 @@
import { execFile, spawnSync } from "child_process";
import { existsSync, mkdirSync, mkdtempSync, rmSync, writeFileSync } from "fs";
import { existsSync, type FSWatcher, mkdirSync, mkdtempSync, rmSync, writeFileSync } from "fs";
import { tmpdir } from "os";
import { join } from "path";
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
@ -233,4 +233,33 @@ describe("FooterDataProvider reftable branch detection", () => {
provider.dispose();
}
});
it("retries git watchers 5 seconds after an async fs.watch error", async () => {
vi.useFakeTimers();
const repoDir = createPlainRepo(tempDir);
process.chdir(repoDir);
const provider = new FooterDataProvider(repoDir);
try {
const providerWithInternals = provider as unknown as {
headWatcher: FSWatcher | null;
};
const originalWatcher = providerWithInternals.headWatcher;
expect(originalWatcher).not.toBeNull();
expect(originalWatcher?.listenerCount("error")).toBeGreaterThan(0);
originalWatcher?.emit("error", new Error("simulated EMFILE"));
expect(providerWithInternals.headWatcher).toBeNull();
await vi.advanceTimersByTimeAsync(4999);
expect(providerWithInternals.headWatcher).toBeNull();
await vi.advanceTimersByTimeAsync(1);
expect(providerWithInternals.headWatcher).not.toBeNull();
expect(providerWithInternals.headWatcher).not.toBe(originalWatcher);
} finally {
provider.dispose();
vi.useRealTimers();
}
});
});