files - implement ctime properly as btime (fix #84525)

extensions/vscode-api-tests/src/singlefolder-tests/workspace.fs.test.ts

@@ -23,6 +23,8 @@ suite('workspace-fs', () => {
 		assert.equal(typeof stat.mtime, 'number');
 		assert.equal(typeof stat.ctime, 'number');
 
+		assert.ok(stat.mtime > 0);
+		assert.ok(stat.ctime > 0);
 
 		const entries = await vscode.workspace.fs.readDirectory(root);
 		assert.ok(entries.length > 0);

src/vs/platform/files/common/fileService.ts

@@ -209,6 +209,8 @@ export class FileService extends Disposable implements IFileService {
 		});
 	}
 
+	private async toFileStat(provider: IFileSystemProvider, resource: URI, stat: IStat | { type: FileType } & Partial<IStat>, siblings: number | undefined, resolveMetadata: boolean, recurse: (stat: IFileStat, siblings?: number) => boolean): Promise<IFileStat>;
+	private async toFileStat(provider: IFileSystemProvider, resource: URI, stat: IStat, siblings: number | undefined, resolveMetadata: true, recurse: (stat: IFileStat, siblings?: number) => boolean): Promise<IFileStatWithMetadata>;
 	private async toFileStat(provider: IFileSystemProvider, resource: URI, stat: IStat | { type: FileType } & Partial<IStat>, siblings: number | undefined, resolveMetadata: boolean, recurse: (stat: IFileStat, siblings?: number) => boolean): Promise<IFileStat> {
 
 		// convert to file stat
@@ -219,6 +221,7 @@ export class FileService extends Disposable implements IFileService {
 			isSymbolicLink: (stat.type & FileType.SymbolicLink) !== 0,
 			isReadonly: !!(provider.capabilities & FileSystemProviderCapabilities.Readonly),
 			mtime: stat.mtime,
+			ctime: stat.ctime,
 			size: stat.size,
 			etag: etag({ mtime: stat.mtime, size: stat.size })
 		};

src/vs/platform/files/common/files.ts

@@ -207,8 +207,17 @@ export enum FileType {
 
 export interface IStat {
 	type: FileType;
+
+	/**
+	 * The last modification date represented as millis from unix epoch.
+	 */
 	mtime: number;
+
+	/**
+	 * The creation date represented as millis from unix epoch.
+	 */
 	ctime: number;
+
 	size: number;
 }
 
@@ -583,14 +592,21 @@ interface IBaseStat {
 	size?: number;
 
 	/**
-	 * The last modification date represented
-	 * as millis from unix epoch.
+	 * The last modification date represented as millis from unix epoch.
 	 *
 	 * The value may or may not be resolved as
 	 * it is optional.
 	 */
 	mtime?: number;
 
+	/**
+	 * The creation date represented as millis from unix epoch.
+	 *
+	 * The value may or may not be resolved as
+	 * it is optional.
+	 */
+	ctime?: number;
+
 	/**
 	 * A unique identifier thet represents the
 	 * current state of the file or directory.
@@ -608,6 +624,7 @@ interface IBaseStat {
 
 export interface IBaseStatWithMetadata extends IBaseStat {
 	mtime: number;
+	ctime: number;
 	etag: string;
 	size: number;
 }
@@ -635,6 +652,7 @@ export interface IFileStat extends IBaseStat {
 
 export interface IFileStatWithMetadata extends IFileStat, IBaseStatWithMetadata {
 	mtime: number;
+	ctime: number;
 	etag: string;
 	size: number;
 	children?: IFileStatWithMetadata[];
@@ -703,7 +721,7 @@ export interface IResolveFileOptions {
 	readonly resolveSingleChildDescendants?: boolean;
 
 	/**
-	 * Will resolve mtime, size and etag of files if enabled. This can have a negative impact
+	 * Will resolve mtime, ctime, size and etag of files if enabled. This can have a negative impact
 	 * on performance and thus should only be used when these values are required.
 	 */
 	readonly resolveMetadata?: boolean;

src/vs/platform/files/node/diskFileSystemProvider.ts

@@ -80,7 +80,7 @@ export class DiskFileSystemProvider extends Disposable implements
 
 			return {
 				type: this.toType(stat, isSymbolicLink),
-				ctime: stat.ctime.getTime(),
+				ctime: stat.birthtime.getTime(), // intentionally not using ctime here, we want the creation time
 				mtime: stat.mtime.getTime(),
 				size: stat.size
 			};

src/vs/platform/files/test/node/diskFileService.test.ts

@@ -213,23 +213,32 @@ suite('Disk File Service', function () {
 		assert.equal(exists, false);
 	});
 
-	test('resolve', async () => {
-		const resolved = await service.resolve(URI.file(testDir), { resolveTo: [URI.file(join(testDir, 'deep'))] });
-		assert.equal(resolved.children!.length, 8);
+	test('resolve - file', async () => {
+		const resource = URI.file(getPathFromAmdModule(require, './fixtures/resolver/index.html'));
+		const resolved = await service.resolve(resource);
 
-		const deep = (getByName(resolved, 'deep')!);
-		assert.equal(deep.children!.length, 4);
+		assert.equal(resolved.name, 'index.html');
+		assert.equal(resolved.resource.toString(), resource.toString());
+		assert.equal(resolved.children, undefined);
+		assert.ok(resolved.mtime! > 0);
+		assert.ok(resolved.ctime! > 0);
+		assert.ok(resolved.size! > 0);
 	});
 
 	test('resolve - directory', async () => {
 		const testsElements = ['examples', 'other', 'index.html', 'site.css'];
 
-		const result = await service.resolve(URI.file(getPathFromAmdModule(require, './fixtures/resolver')));
+		const resource = URI.file(getPathFromAmdModule(require, './fixtures/resolver'));
+		const result = await service.resolve(resource);
 
 		assert.ok(result);
+		assert.equal(result.resource.toString(), resource.toString());
+		assert.equal(result.name, 'resolver');
 		assert.ok(result.children);
 		assert.ok(result.children!.length > 0);
 		assert.ok(result!.isDirectory);
+		assert.ok(result.mtime! > 0);
+		assert.ok(result.ctime! > 0);
 		assert.equal(result.children!.length, testsElements.length);
 
 		assert.ok(result.children!.every(entry => {
@@ -242,12 +251,18 @@ suite('Disk File Service', function () {
 			assert.ok(basename(value.resource.fsPath));
 			if (['examples', 'other'].indexOf(basename(value.resource.fsPath)) >= 0) {
 				assert.ok(value.isDirectory);
+				assert.equal(value.mtime, undefined);
+				assert.equal(value.ctime, undefined);
 			} else if (basename(value.resource.fsPath) === 'index.html') {
 				assert.ok(!value.isDirectory);
 				assert.ok(!value.children);
+				assert.equal(value.mtime, undefined);
+				assert.equal(value.ctime, undefined);
 			} else if (basename(value.resource.fsPath) === 'site.css') {
 				assert.ok(!value.isDirectory);
 				assert.ok(!value.children);
+				assert.equal(value.mtime, undefined);
+				assert.equal(value.ctime, undefined);
 			} else {
 				assert.ok(!'Unexpected value ' + basename(value.resource.fsPath));
 			}
@@ -260,9 +275,12 @@ suite('Disk File Service', function () {
 		const result = await service.resolve(URI.file(getPathFromAmdModule(require, './fixtures/resolver')), { resolveMetadata: true });
 
 		assert.ok(result);
+		assert.equal(result.name, 'resolver');
 		assert.ok(result.children);
 		assert.ok(result.children!.length > 0);
 		assert.ok(result!.isDirectory);
+		assert.ok(result.mtime! > 0);
+		assert.ok(result.ctime! > 0);
 		assert.equal(result.children!.length, testsElements.length);
 
 		assert.ok(result.children!.every(entry => {
@@ -277,18 +295,32 @@ suite('Disk File Service', function () {
 			assert.ok(basename(value.resource.fsPath));
 			if (['examples', 'other'].indexOf(basename(value.resource.fsPath)) >= 0) {
 				assert.ok(value.isDirectory);
+				assert.ok(value.mtime! > 0);
+				assert.ok(value.ctime! > 0);
 			} else if (basename(value.resource.fsPath) === 'index.html') {
 				assert.ok(!value.isDirectory);
 				assert.ok(!value.children);
+				assert.ok(value.mtime! > 0);
+				assert.ok(value.ctime! > 0);
 			} else if (basename(value.resource.fsPath) === 'site.css') {
 				assert.ok(!value.isDirectory);
 				assert.ok(!value.children);
+				assert.ok(value.mtime! > 0);
+				assert.ok(value.ctime! > 0);
 			} else {
 				assert.ok(!'Unexpected value ' + basename(value.resource.fsPath));
 			}
 		});
 	});
 
+	test('resolve - directory with resolveTo', async () => {
+		const resolved = await service.resolve(URI.file(testDir), { resolveTo: [URI.file(join(testDir, 'deep'))] });
+		assert.equal(resolved.children!.length, 8);
+
+		const deep = (getByName(resolved, 'deep')!);
+		assert.equal(deep.children!.length, 4);
+	});
+
 	test('resolve - directory - resolveTo single directory', async () => {
 		const resolverFixturesPath = getPathFromAmdModule(require, './fixtures/resolver');
 		const result = await service.resolve(URI.file(resolverFixturesPath), { resolveTo: [URI.file(join(resolverFixturesPath, 'other/deep'))] });

src/vs/workbench/api/browser/mainThreadFileSystem.ts

@@ -52,7 +52,7 @@ export class MainThreadFileSystem implements MainThreadFileSystemShape {
 	$stat(uri: UriComponents): Promise<IStat> {
 		return this._fileService.resolve(URI.revive(uri), { resolveMetadata: true }).then(stat => {
 			return {
-				ctime: 0,
+				ctime: stat.ctime,
 				mtime: stat.mtime,
 				size: stat.size,
 				type: MainThreadFileSystem._getFileType(stat)

src/vs/workbench/services/textfile/common/textFileEditorModel.ts

@@ -32,6 +32,7 @@ import { Schemas } from 'vs/base/common/network';
 
 export interface IBackupMetaData {
 	mtime: number;
+	ctime: number;
 	size: number;
 	etag: string;
 	orphaned: boolean;
@@ -224,6 +225,7 @@ export class TextFileEditorModel extends BaseTextEditorModel implements ITextFil
 			if (isEqual(target, this.resource) && this.lastResolvedFileStat) {
 				meta = {
 					mtime: this.lastResolvedFileStat.mtime,
+					ctime: this.lastResolvedFileStat.ctime,
 					size: this.lastResolvedFileStat.size,
 					etag: this.lastResolvedFileStat.etag,
 					orphaned: this.inOrphanMode
@@ -313,6 +315,7 @@ export class TextFileEditorModel extends BaseTextEditorModel implements ITextFil
 			resource: this.resource,
 			name: basename(this.resource),
 			mtime: resolvedBackup.meta ? resolvedBackup.meta.mtime : Date.now(),
+			ctime: resolvedBackup.meta ? resolvedBackup.meta.ctime : Date.now(),
 			size: resolvedBackup.meta ? resolvedBackup.meta.size : 0,
 			etag: resolvedBackup.meta ? resolvedBackup.meta.etag : ETAG_DISABLED, // etag disabled if unknown!
 			value: resolvedBackup.value,
@@ -397,6 +400,7 @@ export class TextFileEditorModel extends BaseTextEditorModel implements ITextFil
 			resource: this.resource,
 			name: content.name,
 			mtime: content.mtime,
+			ctime: content.ctime,
 			size: content.size,
 			etag: content.etag,
 			isDirectory: false,

src/vs/workbench/test/workbenchTestServices.ts

@@ -262,6 +262,7 @@ export class TestTextFileService extends NativeTextFileService {
 				resource: content.resource,
 				name: content.name,
 				mtime: content.mtime,
+				ctime: content.ctime,
 				etag: content.etag,
 				encoding: 'utf8',
 				value: await createTextBufferFactoryFromStream(content.value),
@@ -996,6 +997,7 @@ export class TestFileService implements IFileService {
 			etag: 'index.txt',
 			encoding: 'utf8',
 			mtime: Date.now(),
+			ctime: Date.now(),
 			name: resources.basename(resource),
 			size: 1
 		});
@@ -1022,6 +1024,7 @@ export class TestFileService implements IFileService {
 			etag: 'index.txt',
 			encoding: 'utf8',
 			mtime: Date.now(),
+			ctime: Date.now(),
 			size: 1,
 			name: resources.basename(resource)
 		});
@@ -1033,6 +1036,7 @@ export class TestFileService implements IFileService {
 			etag: 'index.txt',
 			encoding: 'utf8',
 			mtime: Date.now(),
+			ctime: Date.now(),
 			size: 42,
 			isDirectory: false,
 			name: resources.basename(resource)