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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import * as assert from 'assert';
import { Emitter, Event } from 'vs/base/common/event';
import { isLinux, isWindows } from 'vs/base/common/platform';
import { isEqual } from 'vs/base/common/resources';
import { URI as uri } from 'vs/base/common/uri';
import { FileChangesEvent, FileChangeType, IFileChange } from 'vs/platform/files/common/files';
import { IDiskFileChange, coalesceEvents, toFileChanges, parseWatcherPatterns } from 'vs/platform/files/common/watcher';
class TestFileWatcher {
private readonly _onDidFilesChange: Emitter<{ raw: IFileChange[]; event: FileChangesEvent }>;
constructor() {
this._onDidFilesChange = new Emitter<{ raw: IFileChange[]; event: FileChangesEvent }>();
}
get onDidFilesChange(): Event<{ raw: IFileChange[]; event: FileChangesEvent }> {
return this._onDidFilesChange.event;
}
report(changes: IDiskFileChange[]): void {
this.onRawFileEvents(changes);
}
private onRawFileEvents(events: IDiskFileChange[]): void {
// Coalesce
let coalescedEvents = coalesceEvents(events);
// Emit through event emitter
if (coalescedEvents.length > 0) {
this._onDidFilesChange.fire({ raw: toFileChanges(coalescedEvents), event: this.toFileChangesEvent(coalescedEvents) });
}
}
private toFileChangesEvent(changes: IDiskFileChange[]): FileChangesEvent {
return new FileChangesEvent(toFileChanges(changes), !isLinux);
}
}
enum Path {
UNIX,
WINDOWS,
UNC
}
suite('Watcher', () => {
(isWindows ? test.skip : test)('parseWatcherPatterns - posix', () => {
const path = '/users/data/src';
let parsedPattern = parseWatcherPatterns(path, ['*.js'])[0];
assert.strictEqual(parsedPattern('/users/data/src/foo.js'), true);
assert.strictEqual(parsedPattern('/users/data/src/foo.ts'), false);
assert.strictEqual(parsedPattern('/users/data/src/bar/foo.js'), false);
parsedPattern = parseWatcherPatterns(path, ['/users/data/src/*.js'])[0];
assert.strictEqual(parsedPattern('/users/data/src/foo.js'), true);
assert.strictEqual(parsedPattern('/users/data/src/foo.ts'), false);
assert.strictEqual(parsedPattern('/users/data/src/bar/foo.js'), false);
parsedPattern = parseWatcherPatterns(path, ['/users/data/src/bar/*.js'])[0];
assert.strictEqual(parsedPattern('/users/data/src/foo.js'), false);
assert.strictEqual(parsedPattern('/users/data/src/foo.ts'), false);
assert.strictEqual(parsedPattern('/users/data/src/bar/foo.js'), true);
parsedPattern = parseWatcherPatterns(path, ['**/*.js'])[0];
assert.strictEqual(parsedPattern('/users/data/src/foo.js'), true);
assert.strictEqual(parsedPattern('/users/data/src/foo.ts'), false);
assert.strictEqual(parsedPattern('/users/data/src/bar/foo.js'), true);
});
(!isWindows ? test.skip : test)('parseWatcherPatterns - windows', () => {
const path = 'c:\\users\\data\\src';
let parsedPattern = parseWatcherPatterns(path, ['*.js'])[0];
assert.strictEqual(parsedPattern('c:\\users\\data\\src\\foo.js'), true);
assert.strictEqual(parsedPattern('c:\\users\\data\\src\\foo.ts'), false);
assert.strictEqual(parsedPattern('c:\\users\\data\\src\\bar/foo.js'), false);
parsedPattern = parseWatcherPatterns(path, ['c:\\users\\data\\src\\*.js'])[0];
assert.strictEqual(parsedPattern('c:\\users\\data\\src\\foo.js'), true);
assert.strictEqual(parsedPattern('c:\\users\\data\\src\\foo.ts'), false);
assert.strictEqual(parsedPattern('c:\\users\\data\\src\\bar\\foo.js'), false);
parsedPattern = parseWatcherPatterns(path, ['c:\\users\\data\\src\\bar/*.js'])[0];
assert.strictEqual(parsedPattern('c:\\users\\data\\src\\foo.js'), false);
assert.strictEqual(parsedPattern('c:\\users\\data\\src\\foo.ts'), false);
assert.strictEqual(parsedPattern('c:\\users\\data\\src\\bar\\foo.js'), true);
parsedPattern = parseWatcherPatterns(path, ['**/*.js'])[0];
assert.strictEqual(parsedPattern('c:\\users\\data\\src\\foo.js'), true);
assert.strictEqual(parsedPattern('c:\\users\\data\\src\\foo.ts'), false);
assert.strictEqual(parsedPattern('c:\\users\\data\\src\\bar\\foo.js'), true);
});
});
suite('Watcher Events Normalizer', () => {
test('simple add/update/delete', done => {
const watch = new TestFileWatcher();
const added = uri.file('/users/data/src/added.txt');
const updated = uri.file('/users/data/src/updated.txt');
const deleted = uri.file('/users/data/src/deleted.txt');
const raw: IDiskFileChange[] = [
{ path: added.fsPath, type: FileChangeType.ADDED },
{ path: updated.fsPath, type: FileChangeType.UPDATED },
{ path: deleted.fsPath, type: FileChangeType.DELETED },
];
watch.onDidFilesChange(({ event, raw }) => {
assert.ok(event);
assert.strictEqual(raw.length, 3);
assert.ok(event.contains(added, FileChangeType.ADDED));
assert.ok(event.contains(updated, FileChangeType.UPDATED));
assert.ok(event.contains(deleted, FileChangeType.DELETED));
done();
});
watch.report(raw);
});
(isWindows ? [Path.WINDOWS, Path.UNC] : [Path.UNIX]).forEach(path => {
test(`delete only reported for top level folder (${path})`, done => {
const watch = new TestFileWatcher();
const deletedFolderA = uri.file(path === Path.UNIX ? '/users/data/src/todelete1' : path === Path.WINDOWS ? 'C:\\users\\data\\src\\todelete1' : '\\\\localhost\\users\\data\\src\\todelete1');
const deletedFolderB = uri.file(path === Path.UNIX ? '/users/data/src/todelete2' : path === Path.WINDOWS ? 'C:\\users\\data\\src\\todelete2' : '\\\\localhost\\users\\data\\src\\todelete2');
const deletedFolderBF1 = uri.file(path === Path.UNIX ? '/users/data/src/todelete2/file.txt' : path === Path.WINDOWS ? 'C:\\users\\data\\src\\todelete2\\file.txt' : '\\\\localhost\\users\\data\\src\\todelete2\\file.txt');
const deletedFolderBF2 = uri.file(path === Path.UNIX ? '/users/data/src/todelete2/more/test.txt' : path === Path.WINDOWS ? 'C:\\users\\data\\src\\todelete2\\more\\test.txt' : '\\\\localhost\\users\\data\\src\\todelete2\\more\\test.txt');
const deletedFolderBF3 = uri.file(path === Path.UNIX ? '/users/data/src/todelete2/super/bar/foo.txt' : path === Path.WINDOWS ? 'C:\\users\\data\\src\\todelete2\\super\\bar\\foo.txt' : '\\\\localhost\\users\\data\\src\\todelete2\\super\\bar\\foo.txt');
const deletedFileA = uri.file(path === Path.UNIX ? '/users/data/src/deleteme.txt' : path === Path.WINDOWS ? 'C:\\users\\data\\src\\deleteme.txt' : '\\\\localhost\\users\\data\\src\\deleteme.txt');
const addedFile = uri.file(path === Path.UNIX ? '/users/data/src/added.txt' : path === Path.WINDOWS ? 'C:\\users\\data\\src\\added.txt' : '\\\\localhost\\users\\data\\src\\added.txt');
const updatedFile = uri.file(path === Path.UNIX ? '/users/data/src/updated.txt' : path === Path.WINDOWS ? 'C:\\users\\data\\src\\updated.txt' : '\\\\localhost\\users\\data\\src\\updated.txt');
const raw: IDiskFileChange[] = [
{ path: deletedFolderA.fsPath, type: FileChangeType.DELETED },
{ path: deletedFolderB.fsPath, type: FileChangeType.DELETED },
{ path: deletedFolderBF1.fsPath, type: FileChangeType.DELETED },
{ path: deletedFolderBF2.fsPath, type: FileChangeType.DELETED },
{ path: deletedFolderBF3.fsPath, type: FileChangeType.DELETED },
{ path: deletedFileA.fsPath, type: FileChangeType.DELETED },
{ path: addedFile.fsPath, type: FileChangeType.ADDED },
{ path: updatedFile.fsPath, type: FileChangeType.UPDATED }
];
watch.onDidFilesChange(({ event, raw }) => {
assert.ok(event);
assert.strictEqual(raw.length, 5);
assert.ok(event.contains(deletedFolderA, FileChangeType.DELETED));
assert.ok(event.contains(deletedFolderB, FileChangeType.DELETED));
assert.ok(event.contains(deletedFileA, FileChangeType.DELETED));
assert.ok(event.contains(addedFile, FileChangeType.ADDED));
assert.ok(event.contains(updatedFile, FileChangeType.UPDATED));
done();
});
watch.report(raw);
});
});
test('event coalescer: ignore CREATE followed by DELETE', done => {
const watch = new TestFileWatcher();
const created = uri.file('/users/data/src/related');
const deleted = uri.file('/users/data/src/related');
const unrelated = uri.file('/users/data/src/unrelated');
const raw: IDiskFileChange[] = [
{ path: created.fsPath, type: FileChangeType.ADDED },
{ path: deleted.fsPath, type: FileChangeType.DELETED },
{ path: unrelated.fsPath, type: FileChangeType.UPDATED },
];
watch.onDidFilesChange(({ event, raw }) => {
assert.ok(event);
assert.strictEqual(raw.length, 1);
assert.ok(event.contains(unrelated, FileChangeType.UPDATED));
done();
});
watch.report(raw);
});
test('event coalescer: flatten DELETE followed by CREATE into CHANGE', done => {
const watch = new TestFileWatcher();
const deleted = uri.file('/users/data/src/related');
const created = uri.file('/users/data/src/related');
const unrelated = uri.file('/users/data/src/unrelated');
const raw: IDiskFileChange[] = [
{ path: deleted.fsPath, type: FileChangeType.DELETED },
{ path: created.fsPath, type: FileChangeType.ADDED },
{ path: unrelated.fsPath, type: FileChangeType.UPDATED },
];
watch.onDidFilesChange(({ event, raw }) => {
assert.ok(event);
assert.strictEqual(raw.length, 2);
assert.ok(event.contains(deleted, FileChangeType.UPDATED));
assert.ok(event.contains(unrelated, FileChangeType.UPDATED));
done();
});
watch.report(raw);
});
test('event coalescer: ignore UPDATE when CREATE received', done => {
const watch = new TestFileWatcher();
const created = uri.file('/users/data/src/related');
const updated = uri.file('/users/data/src/related');
const unrelated = uri.file('/users/data/src/unrelated');
const raw: IDiskFileChange[] = [
{ path: created.fsPath, type: FileChangeType.ADDED },
{ path: updated.fsPath, type: FileChangeType.UPDATED },
{ path: unrelated.fsPath, type: FileChangeType.UPDATED },
];
watch.onDidFilesChange(({ event, raw }) => {
assert.ok(event);
assert.strictEqual(raw.length, 2);
assert.ok(event.contains(created, FileChangeType.ADDED));
assert.ok(!event.contains(created, FileChangeType.UPDATED));
assert.ok(event.contains(unrelated, FileChangeType.UPDATED));
done();
});
watch.report(raw);
});
test('event coalescer: apply DELETE', done => {
const watch = new TestFileWatcher();
const updated = uri.file('/users/data/src/related');
const updated2 = uri.file('/users/data/src/related');
const deleted = uri.file('/users/data/src/related');
const unrelated = uri.file('/users/data/src/unrelated');
const raw: IDiskFileChange[] = [
{ path: updated.fsPath, type: FileChangeType.UPDATED },
{ path: updated2.fsPath, type: FileChangeType.UPDATED },
{ path: unrelated.fsPath, type: FileChangeType.UPDATED },
{ path: updated.fsPath, type: FileChangeType.DELETED }
];
watch.onDidFilesChange(({ event, raw }) => {
assert.ok(event);
assert.strictEqual(raw.length, 2);
assert.ok(event.contains(deleted, FileChangeType.DELETED));
assert.ok(!event.contains(updated, FileChangeType.UPDATED));
assert.ok(event.contains(unrelated, FileChangeType.UPDATED));
done();
});
watch.report(raw);
});
test('event coalescer: track case renames', done => {
const watch = new TestFileWatcher();
const oldPath = uri.file('/users/data/src/added');
const newPath = uri.file('/users/data/src/ADDED');
const raw: IDiskFileChange[] = [
{ path: newPath.fsPath, type: FileChangeType.ADDED },
{ path: oldPath.fsPath, type: FileChangeType.DELETED }
];
watch.onDidFilesChange(({ event, raw }) => {
assert.ok(event);
assert.strictEqual(raw.length, 2);
for (const r of raw) {
if (isEqual(r.resource, oldPath)) {
assert.strictEqual(r.type, FileChangeType.DELETED);
} else if (isEqual(r.resource, newPath)) {
assert.strictEqual(r.type, FileChangeType.ADDED);
} else {
assert.fail();
}
}
done();
});
watch.report(raw);
});
});
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