fix: harden folder monitor lifecycle

This commit is contained in:
Sucukdeluxe
2026-08-26 09:24:18 +02:00
parent c414a4a303
commit 724280b0cf
4 changed files with 495 additions and 109 deletions
+2 -1
View File
@@ -5,6 +5,7 @@ async function walkFolderAsync(rootDir, options = {}) {
const fsPromises = options.fsPromises || fs.promises;
const pathImpl = options.pathImpl || path;
const yieldFn = options.yieldFn || (() => new Promise(setImmediate));
const recursive = options.recursive !== false;
const files = [];
const stack = [rootDir];
let scanned = 0;
@@ -20,7 +21,7 @@ async function walkFolderAsync(rootDir, options = {}) {
for (const entry of entries) {
const fullPath = pathImpl.join(dir, entry.name);
if (entry.isDirectory()) {
stack.push(fullPath);
if (recursive) stack.push(fullPath);
} else if (entry.isFile()) {
let size = 0;
try {
+249 -107
View File
@@ -34,6 +34,7 @@ class FolderMonitor extends EventEmitter {
this._initialScopes = new Set();
this._reconcileTimer = null;
this._scanPromise = null;
this._scanGeneration = null;
this._followUpRequested = false;
this._followUpOptions = null;
this._paused = false;
@@ -42,6 +43,7 @@ class FolderMonitor extends EventEmitter {
this._lastScanAt = null;
this._lastScanTrigger = '';
this._lastError = '';
this._generation = 0;
}
get running() {
@@ -49,7 +51,68 @@ class FolderMonitor extends EventEmitter {
}
start(settings) {
this.stop();
return this._start(settings, false);
}
stop() {
this._deactivate({ clearSeen: true, paused: false });
}
status() {
return Object.freeze({
running: this.running,
paused: this._paused,
reachable: this._reachable,
scanning: this._scanning,
folderPath: this._settings ? this._settings.folderPath : '',
seenCount: this._seenFiles.size,
lastScanAt: this._lastScanAt,
lastScanTrigger: this._lastScanTrigger,
error: this._lastError
});
}
scan({ emitFiles = true, trigger = 'manual' } = {}) {
const request = { emitFiles: !!emitFiles, trigger: String(trigger || 'manual') };
const generation = this._generation;
if (!request.emitFiles) return this._performDryScan(request, generation);
if (this._paused) return Promise.resolve(this._cancelledResult(request.trigger));
if (this._scanPromise && this._scanGeneration === generation) {
this._followUpRequested = true;
this._followUpOptions = { emitFiles: true, trigger: request.trigger };
return this._scanPromise;
}
let promise;
promise = this._runProductiveScans(request, generation).finally(() => {
if (this._scanPromise === promise) {
this._scanPromise = null;
this._scanGeneration = null;
}
});
this._scanPromise = promise;
this._scanGeneration = generation;
return promise;
}
async pause() {
const changed = !!(this._watcher || this._reconcileTimer || this._batchTimer || this._scanPromise || !this._paused);
const watcher = this._invalidateLifecycle(true);
if (watcher) {
try {
await watcher.close();
} catch {}
}
if (changed) this._emitStatus(this._generation);
}
async resume(settings = this._settings) {
if (!settings) throw new Error('Keine Ordnerkonfiguration vorhanden');
this._start(settings, true);
return this.scan({ emitFiles: true, trigger: 'resume' });
}
_start(settings, preserveSeen) {
this._deactivate({ clearSeen: !preserveSeen, paused: false });
this._settings = settings;
this._paused = false;
this._reachable = null;
@@ -77,148 +140,180 @@ class FolderMonitor extends EventEmitter {
}
};
const generation = this._generation;
this._watcher = this._watch(folderPath, watchOptions);
if (includeInitial) {
this._watcher.once('ready', () => this.emit('initial-scan-complete'));
}
this._watcher.on('add', (filePath) => this._onNewFile(filePath));
this._watcher.on('unlink', (filePath) => {
this._seenFiles.delete(this._normalizePath(filePath));
this._watcher.once('ready', () => {
if (this._acceptCallback(generation)) this._emitEvent('initial-scan-complete', [], generation);
});
this._watcher.on('error', (err) => {
this._lastError = err instanceof Error ? err.message : String(err);
this._emitStatus();
this.emit('error', err);
}
this._watcher.on('add', (filePath) => this._onNewFile(filePath, generation));
this._watcher.on('unlink', (filePath) => {
if (this._acceptCallback(generation)) this._seenFiles.delete(this._normalizePath(filePath));
});
this._watcher.on('error', (error) => {
if (!this._acceptCallback(generation)) return;
this._lastError = 'Ordnerüberwachung fehlgeschlagen';
this._emitStatus(generation);
this._emitEvent('error', [error], generation);
});
const intervalMinutes = Number(settings.reconcileIntervalMinutes) || 5;
this._reconcileTimer = this._setInterval(() => this._reconcile(), intervalMinutes * 60 * 1000);
this._emitStatus();
this._reconcileTimer = this._setInterval(
() => this._reconcile(generation).catch((error) => this._publishBackgroundError(error, generation)),
intervalMinutes * 60 * 1000
);
this._emitStatus(generation);
return { includesExisting: includeInitial };
}
stop() {
const changed = !!(this._watcher || this._reconcileTimer || this._batchTimer || this._batchBuffer.length || this._seenFiles.size);
if (this._watcher) {
this._watcher.close().catch(() => {});
this._watcher = null;
_deactivate({ clearSeen, paused }) {
const changed = !!(
this._watcher
|| this._reconcileTimer
|| this._batchTimer
|| this._batchBuffer.length
|| this._scanPromise
|| (clearSeen && this._seenFiles.size)
|| this._paused !== paused
);
const watcher = this._invalidateLifecycle(paused);
if (watcher) {
try {
Promise.resolve(watcher.close()).catch(() => {});
} catch {}
}
if (this._reconcileTimer) {
this._clearInterval(this._reconcileTimer);
this._reconcileTimer = null;
}
if (this._batchTimer) {
this._clearTimeout(this._batchTimer);
this._batchTimer = null;
}
this._batchBuffer = [];
this._seenFiles = new Set();
if (changed) this._emitStatus();
if (clearSeen) this._seenFiles = new Set();
if (changed) this._emitStatus(this._generation);
}
status() {
return Object.freeze({
running: this.running,
paused: this._paused,
reachable: this._reachable,
scanning: this._scanning,
folderPath: this._settings ? this._settings.folderPath : '',
seenCount: this._seenFiles.size,
lastScanAt: this._lastScanAt,
lastScanTrigger: this._lastScanTrigger,
error: this._lastError
});
}
scan({ emitFiles = true, trigger = 'manual' } = {}) {
const request = { emitFiles: !!emitFiles, trigger: String(trigger || 'manual') };
if (this._scanPromise) {
this._followUpRequested = true;
this._followUpOptions = {
emitFiles: !!(this._followUpOptions?.emitFiles || request.emitFiles),
trigger: request.trigger
};
return this._scanPromise;
}
this._scanPromise = this._runScans(request).finally(() => {
_invalidateLifecycle(paused) {
this._generation++;
this._paused = paused;
this._scanning = false;
this._followUpRequested = false;
this._followUpOptions = null;
this._scanPromise = null;
});
return this._scanPromise;
}
async pause() {
this._paused = true;
if (this._reconcileTimer) {
this._clearInterval(this._reconcileTimer);
this._reconcileTimer = null;
}
this._scanGeneration = null;
const watcher = this._watcher;
this._watcher = null;
if (watcher) await watcher.close().catch(() => {});
if (this._reconcileTimer) {
this._clearInterval(this._reconcileTimer);
this._reconcileTimer = null;
}
if (this._batchTimer) {
this._clearTimeout(this._batchTimer);
this._batchTimer = null;
}
this._batchBuffer = [];
this._emitStatus();
return watcher;
}
async resume(settings = this._settings) {
if (!settings) throw new Error('Keine Ordnerkonfiguration vorhanden');
this.start(settings);
return this.scan({ emitFiles: true, trigger: 'resume' });
}
_onNewFile(filePath) {
if (!this._settings || !this._classifyPath(filePath).allowed || !this._acceptPath(filePath)) return;
_onNewFile(filePath, generation) {
if (!this._acceptCallback(generation)) return;
if (!this._classifyPath(filePath, this._settings).allowed || !this._acceptPath(filePath)) return;
this._batchBuffer.push(filePath);
if (this._batchTimer) this._clearTimeout(this._batchTimer);
this._batchTimer = this._setTimeout(() => {
if (!this._acceptCallback(generation)) return;
const files = this._batchBuffer.splice(0);
this._batchTimer = null;
if (files.length > 0) {
this.emit('new-files', files);
if (files.length === 0) return;
const listenerError = this._emitEvent('new-files', [files], generation);
if (listenerError && this._acceptCallback(generation)) {
this._lastError = 'Ordnerüberwachung fehlgeschlagen';
this._emitStatus(generation);
}
}, 200);
}
async _runScans(initialRequest) {
async _runProductiveScans(initialRequest, generation) {
let request = initialRequest;
let result;
let result = this._cancelledResult(request.trigger);
do {
this._followUpRequested = false;
this._followUpOptions = null;
result = await this._performScan(request);
result = await this._performProductiveScan(request, generation);
if (!this._isCurrent(generation)) return this._cancelledResult(request.trigger);
request = this._followUpOptions || request;
} while (this._followUpRequested);
return result;
}
async _performScan({ emitFiles, trigger }) {
async _performProductiveScan({ trigger }, generation) {
if (!this._settings) throw new Error('Keine Ordnerkonfiguration vorhanden');
if (!this._isCurrent(generation) || this._paused) return this._cancelledResult(trigger);
const settings = this._settings;
this._scanning = true;
this._lastScanTrigger = trigger;
this._emitStatus();
const startListenerError = this._emitStatus(generation);
if (startListenerError) return this._finishProductiveError(startListenerError, generation, trigger, this._reachable);
const wasReachable = this._reachable;
try {
await this._access(this._settings.folderPath);
} catch (error) {
await this._access(settings.folderPath);
} catch {
if (!this._isCurrent(generation)) return this._cancelledResult(trigger);
this._reachable = false;
this._lastScanAt = this._now();
this._lastError = error instanceof Error ? error.message : String(error);
this._lastError = 'Ordner nicht erreichbar';
this._scanning = false;
this._emitStatus();
return Object.freeze({ files: [], reachable: false, reconnected: false, trigger });
this._emitStatus(generation);
return this._result([], false, false, trigger, { error: this._lastError });
}
if (!this._isCurrent(generation)) return this._cancelledResult(trigger);
try {
const files = await this._discoverFiles(settings, generation);
if (!this._isCurrent(generation)) return this._cancelledResult(trigger);
const emittedFiles = files.filter((file) => this._acceptPath(file.path));
if (emittedFiles.length > 0) {
const listenerError = this._emitEvent('new-files', [emittedFiles.map((file) => file.path)], generation);
if (listenerError) return this._finishProductiveError(listenerError, generation, trigger, true);
}
if (!this._isCurrent(generation)) return this._cancelledResult(trigger);
this._reachable = true;
this._lastScanAt = this._now();
this._lastError = '';
this._scanning = false;
const statusListenerError = this._emitStatus(generation);
if (statusListenerError) return this._finishProductiveError(statusListenerError, generation, trigger, true);
return this._result(files, true, wasReachable === false, trigger);
} catch (error) {
return this._finishProductiveError(error, generation, trigger, true);
}
}
const discovered = await this._walkFolder(this._settings.folderPath, { recursive: !!this._settings.recursive });
async _performDryScan({ trigger }, generation) {
if (!this._settings) throw new Error('Keine Ordnerkonfiguration vorhanden');
const settings = this._settings;
try {
await this._access(settings.folderPath);
} catch {
if (!this._isCurrent(generation)) return this._cancelledResult(trigger);
return this._result([], false, false, trigger);
}
if (!this._isCurrent(generation)) return this._cancelledResult(trigger);
try {
const files = await this._discoverFiles(settings, generation);
if (!this._isCurrent(generation)) return this._cancelledResult(trigger);
return this._result(files, true, this._reachable === false, trigger);
} catch {
if (!this._isCurrent(generation)) return this._cancelledResult(trigger);
return this._result([], true, false, trigger, { error: 'Ordnerscan fehlgeschlagen' });
}
}
async _discoverFiles(settings, generation) {
const discovered = await this._walkFolder(settings.folderPath, { recursive: !!settings.recursive });
if (!this._isCurrent(generation)) return [];
const files = [];
for (const descriptor of discovered) {
if (!this._settings.recursive && this._isNestedPath(descriptor.path)) continue;
if (!this._classifyPath(descriptor.path).allowed) continue;
if (!this._isCurrent(generation)) return [];
if (!settings.recursive && this._isNestedPath(descriptor.path, settings.folderPath)) continue;
if (!this._classifyPath(descriptor.path, settings).allowed) continue;
let mtimeMs = 0;
try {
mtimeMs = Number((await this._stat(descriptor.path)).mtimeMs) || 0;
} catch {}
if (!this._isCurrent(generation)) return [];
files.push(Object.freeze({
path: descriptor.path,
name: descriptor.name || path.basename(descriptor.path),
@@ -226,34 +321,45 @@ class FolderMonitor extends EventEmitter {
mtimeMs
}));
}
const emittedFiles = emitFiles ? files.filter((file) => this._acceptPath(file.path)) : [];
if (emittedFiles.length > 0) this.emit('new-files', emittedFiles.map((file) => file.path));
this._reachable = true;
this._lastScanAt = this._now();
this._lastError = '';
this._scanning = false;
this._emitStatus();
return Object.freeze({ files: Object.freeze(files), reachable: true, reconnected: wasReachable === false, trigger });
return files;
}
async _reconcile() {
if (this._paused || !this._settings) return;
_finishProductiveError(error, generation, trigger, reachable) {
if (!this._isCurrent(generation)) return this._cancelledResult(trigger);
this._reachable = reachable;
this._lastScanAt = this._now();
this._lastError = 'Ordnerscan fehlgeschlagen';
this._scanning = false;
this._emitStatus(generation);
return this._result([], reachable === true, false, trigger, { error: this._lastError });
}
async _reconcile(generation) {
if (!this._acceptCallback(generation)) return;
const trigger = this._reachable === false ? 'reconnect' : 'interval';
await this.scan({ emitFiles: true, trigger });
}
_extensionSet() {
return new Set(String(this._settings?.extensions || '')
_publishBackgroundError(error, generation) {
if (!this._acceptCallback(generation)) return;
this._lastScanAt = this._now();
this._lastError = 'Ordnerscan fehlgeschlagen';
this._scanning = false;
this._emitStatus(generation);
}
_extensionSet(settings) {
return new Set(String(settings?.extensions || '')
.split(',')
.map((extension) => extension.trim().toLowerCase().replace(/^\./, ''))
.filter(Boolean));
}
_classifyPath(filePath) {
_classifyPath(filePath, settings) {
const extension = path.extname(filePath).replace(/^\./, '').toLowerCase();
const extensions = this._extensionSet();
const extensions = this._extensionSet(settings);
const matches = extensions.size === 0 || extensions.has(extension);
const allowed = this._settings?.filterMode === 'exclude' ? !matches : matches;
const allowed = settings?.filterMode === 'exclude' ? !matches : matches;
return Object.freeze({ allowed, reason: allowed ? 'matched' : 'extension' });
}
@@ -269,13 +375,49 @@ class FolderMonitor extends EventEmitter {
return String(filePath).replace(/\\/g, '/').toLowerCase();
}
_isNestedPath(filePath) {
const relativePath = path.relative(this._settings.folderPath, filePath);
_isNestedPath(filePath, folderPath) {
const relativePath = path.relative(folderPath, filePath);
return relativePath.split(/[\\/]/).length > 1;
}
_emitStatus() {
this.emit('status', this.status());
_acceptCallback(generation) {
return this._isCurrent(generation) && !this._paused;
}
_isCurrent(generation) {
return this._generation === generation;
}
_emitStatus(generation) {
if (!this._isCurrent(generation)) return null;
return this._emitEvent('status', [this.status()], generation);
}
_emitEvent(eventName, args, generation) {
let firstError = null;
for (const listener of this.rawListeners(eventName)) {
if (!this._isCurrent(generation)) break;
try {
listener.apply(this, args);
} catch (error) {
if (!firstError) firstError = error;
}
}
return firstError;
}
_result(files, reachable, reconnected, trigger, extra = {}) {
return Object.freeze({
files: Object.freeze(files),
reachable,
reconnected,
trigger,
...extra
});
}
_cancelledResult(trigger) {
return this._result([], this._reachable === true, false, trigger, { cancelled: true });
}
}
+21
View File
@@ -36,3 +36,24 @@ test('folder discovery does not truncate long absolute paths', async () => {
assert.equal(result[0].path, target);
assert.ok(result[0].path.length > 260);
});
test('nonrecursive folder discovery never reads child directories', async () => {
const root = 'C:\\watch';
const child = path.win32.join(root, 'nested');
const reads = [];
const result = await walkFolderAsync(root, {
recursive: false,
fsPromises: {
readdir: async (dir) => {
reads.push(dir);
if (dir === root) return [file('root.mkv'), directory('nested')];
if (dir === child) return [file('nested.mkv')];
return [];
},
stat: async () => ({ size: 1 })
},
pathImpl: path.win32
});
assert.deepEqual(reads, [root]);
assert.deepEqual(result.map((entry) => entry.name), ['root.mkv']);
});
+224 -2
View File
@@ -38,6 +38,12 @@ function createManualTimers() {
},
async runInterval() {
for (const callback of [...intervals]) await callback();
},
async runTimeouts() {
for (const callback of [...timeouts]) {
timeouts.delete(callback);
await callback();
}
}
};
}
@@ -216,6 +222,222 @@ test('stop emits an immutable non-running status snapshot', () => {
assert.equal(Object.isFrozen(statuses.at(-1)), true);
});
test('pause invalidates a running scan before it can publish late state or files', async () => {
let releaseWalk;
let markWalkStarted;
const walkPending = new Promise((resolve) => { releaseWalk = resolve; });
const walkStarted = new Promise((resolve) => { markWalkStarted = resolve; });
const timers = createManualTimers();
const statuses = [];
const newFiles = [];
const monitor = new FolderMonitor({
watch: createSilentWatch(),
access: async () => {},
walkFolder: async () => {
markWalkStarted();
await walkPending;
return [{ path: 'C:\\watch\\late.mkv', name: 'late.mkv', size: 1 }];
},
stat: async () => ({ mtimeMs: 1 }),
...timers
});
monitor.on('status', (status) => statuses.push(status));
monitor.on('new-files', (files) => newFiles.push(files));
monitor.start({ folderPath: 'C:\\watch', extensions: 'mkv', skipDuplicates: true, reconcileIntervalMinutes: 5 });
const scan = monitor.scan({ emitFiles: true, trigger: 'manual' });
await walkStarted;
await monitor.pause();
const statusCountAfterPause = statuses.length;
releaseWalk();
const result = await scan;
assert.equal(result.cancelled, true);
assert.equal(statuses.length, statusCountAfterPause);
assert.deepEqual(newFiles, []);
assert.equal(monitor.status().scanning, false);
});
test('stop cancels a running scan and its pending follow-up', async () => {
let releaseWalk;
let markWalkStarted;
let walkCalls = 0;
const walkPending = new Promise((resolve) => { releaseWalk = resolve; });
const walkStarted = new Promise((resolve) => { markWalkStarted = resolve; });
const timers = createManualTimers();
const statuses = [];
const monitor = new FolderMonitor({
watch: createSilentWatch(),
access: async () => {},
walkFolder: async () => {
walkCalls++;
if (walkCalls === 1) {
markWalkStarted();
await walkPending;
}
return [];
},
stat: async () => ({ mtimeMs: 1 }),
...timers
});
monitor.on('status', (status) => statuses.push(status));
monitor.start({ folderPath: 'C:\\watch', reconcileIntervalMinutes: 5 });
const first = monitor.scan({ emitFiles: true, trigger: 'interval' });
await walkStarted;
const followUp = monitor.scan({ emitFiles: true, trigger: 'manual' });
monitor.stop();
const statusCountAfterStop = statuses.length;
releaseWalk();
const results = await Promise.all([first, followUp]);
assert.equal(walkCalls, 1);
assert.equal(results.every((result) => result.cancelled === true), true);
assert.equal(statuses.length, statusCountAfterStop);
});
test('late watcher add callbacks are ignored after pause', async () => {
const timers = createManualTimers();
const watchers = [];
const newFiles = [];
const monitor = new FolderMonitor({
watch: () => {
const watcher = new EventEmitter();
watcher.close = async () => {};
watchers.push(watcher);
return watcher;
},
access: async () => {},
walkFolder: async () => [],
stat: async () => ({ mtimeMs: 1 }),
...timers
});
monitor.on('new-files', (files) => newFiles.push(files));
monitor.start({ folderPath: 'C:\\watch', extensions: 'mkv', reconcileIntervalMinutes: 5 });
await monitor.pause();
watchers[0].emit('add', 'C:\\watch\\late.mkv');
await timers.runTimeouts();
assert.deepEqual(newFiles, []);
});
test('resume preserves session duplicate history', async () => {
const timers = createManualTimers();
const watchers = [];
const newFiles = [];
const monitor = new FolderMonitor({
watch: () => {
const watcher = new EventEmitter();
watcher.close = async () => {};
watchers.push(watcher);
return watcher;
},
access: async () => {},
walkFolder: async () => [{ path: 'C:\\watch\\same.mkv', name: 'same.mkv', size: 1 }],
stat: async () => ({ mtimeMs: 1 }),
...timers
});
monitor.on('new-files', (files) => newFiles.push(files));
const settings = { folderPath: 'C:\\watch', extensions: 'mkv', skipDuplicates: true, reconcileIntervalMinutes: 5 };
monitor.start(settings);
watchers[0].emit('add', 'C:\\watch\\same.mkv');
await timers.runTimeouts();
await monitor.pause();
await monitor.resume(settings);
watchers[1].emit('add', 'C:\\watch\\same.mkv');
await timers.runTimeouts();
assert.deepEqual(newFiles, [['C:\\watch\\same.mkv']]);
assert.equal(monitor.status().seenCount, 1);
});
test('dry scan leaves the public status byte-identical and does not consume reconnect state', async () => {
let reachable = false;
const timers = createManualTimers();
const statuses = [];
const monitor = new FolderMonitor({
watch: createSilentWatch(),
access: async () => {
if (!reachable) throw new Error('offline');
},
walkFolder: async () => [],
stat: async () => ({ mtimeMs: 1 }),
...timers
});
monitor.on('status', (status) => statuses.push(status));
monitor.start({ folderPath: 'Z:\\watch', reconcileIntervalMinutes: 5 });
await monitor.scan({ emitFiles: true, trigger: 'interval' });
reachable = true;
const before = JSON.stringify(monitor.status());
const statusCount = statuses.length;
const dry = await monitor.scan({ emitFiles: false, trigger: 'test' });
assert.equal(dry.reachable, true);
assert.equal(JSON.stringify(monitor.status()), before);
assert.equal(statuses.length, statusCount);
const productive = await monitor.scan({ emitFiles: true, trigger: 'reconnect' });
assert.equal(productive.reconnected, true);
});
test('walk failure clears scan state, sanitizes the error and preserves one follow-up', async () => {
let releaseFailure;
let walkCalls = 0;
const failurePending = new Promise((resolve) => { releaseFailure = resolve; });
const timers = createManualTimers();
const statuses = [];
const monitor = new FolderMonitor({
watch: createSilentWatch(),
access: async () => {},
walkFolder: async () => {
walkCalls++;
if (walkCalls === 1) {
await failurePending;
throw new Error('token=secret-value at C:\\private\\file.mkv');
}
return [];
},
stat: async () => ({ mtimeMs: 1 }),
...timers
});
monitor.on('status', (status) => statuses.push(status));
monitor.start({ folderPath: 'C:\\watch', reconcileIntervalMinutes: 5 });
const first = monitor.scan({ emitFiles: true, trigger: 'interval' });
const second = monitor.scan({ emitFiles: true, trigger: 'reconnect' });
const third = monitor.scan({ emitFiles: true, trigger: 'manual' });
releaseFailure();
await Promise.all([first, second, third]);
assert.equal(walkCalls, 2);
assert.equal(statuses.some((status) => status.error === 'Ordnerscan fehlgeschlagen'), true);
assert.equal(statuses.some((status) => status.error.includes('secret-value') || status.error.includes('C:\\private')), false);
assert.equal(monitor.status().scanning, false);
});
test('new-files listener failure terminates the productive scan with a sanitized error', async () => {
const { monitor } = createScanHarness({
files: [{ path: 'C:\\watch\\a.mkv', name: 'a.mkv', size: 1, mtimeMs: 1 }]
});
monitor.on('new-files', () => {
throw new Error('apiKey=listener-secret');
});
monitor.start({ folderPath: 'C:\\watch', extensions: 'mkv', reconcileIntervalMinutes: 5 });
const result = await monitor.scan({ emitFiles: true, trigger: 'manual' });
assert.equal(result.error, 'Ordnerscan fehlgeschlagen');
assert.equal(monitor.status().error, 'Ordnerscan fehlgeschlagen');
assert.equal(monitor.status().error.includes('listener-secret'), false);
assert.equal(monitor.status().scanning, false);
});
test('interval callback contains unexpected scan rejection', async () => {
const timers = createManualTimers();
const statuses = [];
const monitor = new FolderMonitor({
watch: createSilentWatch(),
access: async () => {},
walkFolder: async () => [],
stat: async () => ({ mtimeMs: 1 }),
...timers
});
monitor.on('status', (status) => statuses.push(status));
monitor.start({ folderPath: 'C:\\watch', reconcileIntervalMinutes: 5 });
monitor.scan = async () => { throw new Error('token=interval-secret'); };
await assert.doesNotReject(() => timers.runInterval());
assert.equal(statuses.at(-1).error, 'Ordnerscan fehlgeschlagen');
assert.equal(statuses.at(-1).error.includes('interval-secret'), false);
});
test('real temporary folder scan survives disconnect and reconnect', async () => {
const root = fs.mkdtempSync(path.join(os.tmpdir(), 'mhu-automation-folder-'));
const detached = `${root}-detached`;
@@ -230,10 +452,10 @@ test('real temporary folder scan survives disconnect and reconnect', async () =>
assert.deepEqual(first.files.map((file) => file.name).sort(), ['a.mkv', 'c.mkv']);
assert.equal(first.files.every((file) => Number.isFinite(file.mtimeMs)), true);
fs.renameSync(root, detached);
const disconnected = await monitor.scan({ emitFiles: false, trigger: 'interval' });
const disconnected = await monitor.scan({ emitFiles: true, trigger: 'interval' });
assert.equal(disconnected.reachable, false);
fs.renameSync(detached, root);
const reconnected = await monitor.scan({ emitFiles: false, trigger: 'interval' });
const reconnected = await monitor.scan({ emitFiles: true, trigger: 'interval' });
assert.equal(reconnected.reachable, true);
assert.equal(reconnected.reconnected, true);
await monitor.pause();