Introduce GlobPattern and adopt in DocumentFilter/FileWatcher/FileSearch (#34695)

* introduce IRelativePattern and use in extension API

* 💄

* docs

* introduce RelativePattern

* support RelativePattern also for file watcher

* also make findFiles support RelativePattern

* less type conversion

* add GlobPattern type and remove readonly

* make base a string

* fix setter access to RelativePattern

* fix npe when exclude is undefined

* fix findFiles: pattern seems to be matched against workspace always

* 💄

* clarify glob pattern matching

src/vs/workbench/api/node/extHost.api.impl.ts

@@ -610,6 +610,7 @@ export function createApiFactory(
 			TaskScope: extHostTypes.TaskScope,
 			Task: extHostTypes.Task,
 			ConfigurationTarget: extHostTypes.ConfigurationTarget,
+			RelativePattern: extHostTypes.RelativePattern,
 
 			// TODO@JOH,remote
 			FileChangeType: <any>FileChangeType,

src/vs/workbench/api/node/extHost.protocol.ts

@@ -47,6 +47,7 @@ import { ITreeItem } from 'vs/workbench/common/views';
 import { ThemeColor } from 'vs/platform/theme/common/themeService';
 import { IDisposable } from 'vs/base/common/lifecycle';
 import { SerializedError } from 'vs/base/common/errors';
+import { IRelativePattern } from 'vs/base/common/glob';
 import { IWorkspaceFolderData } from 'vs/platform/workspace/common/workspace';
 import { IStat, IFileChange } from 'vs/platform/files/common/files';
 
@@ -311,7 +312,7 @@ export interface MainThreadTelemetryShape extends IDisposable {
 }
 
 export interface MainThreadWorkspaceShape extends IDisposable {
-	$startSearch(include: string, exclude: string, maxResults: number, requestId: number): Thenable<URI[]>;
+	$startSearch(include: string | IRelativePattern, exclude: string | IRelativePattern, maxResults: number, requestId: number): Thenable<URI[]>;
 	$cancelSearch(requestId: number): Thenable<boolean>;
 	$saveAll(includeUntitled?: boolean): Thenable<boolean>;
 }

src/vs/workbench/api/node/extHostFileSystemEventService.ts

@@ -6,7 +6,7 @@
 
 import Event, { Emitter } from 'vs/base/common/event';
 import { Disposable } from './extHostTypes';
-import { parse } from 'vs/base/common/glob';
+import { parse, IRelativePattern } from 'vs/base/common/glob';
 import { Uri, FileSystemWatcher as _FileSystemWatcher } from 'vscode';
 import { FileSystemEvents, ExtHostFileSystemEventServiceShape } from './extHost.protocol';
 
@@ -30,7 +30,7 @@ class FileSystemWatcher implements _FileSystemWatcher {
 		return Boolean(this._config & 0b100);
 	}
 
-	constructor(dispatcher: Event<FileSystemEvents>, globPattern: string, ignoreCreateEvents?: boolean, ignoreChangeEvents?: boolean, ignoreDeleteEvents?: boolean) {
+	constructor(dispatcher: Event<FileSystemEvents>, globPattern: string | IRelativePattern, ignoreCreateEvents?: boolean, ignoreChangeEvents?: boolean, ignoreDeleteEvents?: boolean) {
 
 		this._config = 0;
 		if (ignoreCreateEvents) {
@@ -96,7 +96,7 @@ export class ExtHostFileSystemEventService implements ExtHostFileSystemEventServ
 	constructor() {
 	}
 
-	public createFileSystemWatcher(globPattern: string, ignoreCreateEvents?: boolean, ignoreChangeEvents?: boolean, ignoreDeleteEvents?: boolean): _FileSystemWatcher {
+	public createFileSystemWatcher(globPattern: string | IRelativePattern, ignoreCreateEvents?: boolean, ignoreChangeEvents?: boolean, ignoreDeleteEvents?: boolean): _FileSystemWatcher {
 		return new FileSystemWatcher(this._emitter.event, globPattern, ignoreCreateEvents, ignoreChangeEvents, ignoreDeleteEvents);
 	}
 

src/vs/workbench/api/node/extHostTypeConverters.ts

@@ -535,4 +535,4 @@ export namespace ProgressLocation {
 		}
 		return undefined;
 	}
-}
+}

src/vs/workbench/api/node/extHostTypes.ts

@@ -10,6 +10,7 @@ import URI from 'vs/base/common/uri';
 import { illegalArgument } from 'vs/base/common/errors';
 import * as vscode from 'vscode';
 import { isMarkdownString } from 'vs/base/common/htmlContent';
+import { IRelativePattern } from 'vs/base/common/glob';
 
 export class Disposable {
 
@@ -1445,3 +1446,13 @@ export enum ConfigurationTarget {
 
 	WorkspaceFolder = 3
 }
+
+export class RelativePattern implements IRelativePattern {
+	base: string;
+	pattern: string;
+
+	constructor(pattern: string, base: vscode.WorkspaceFolder | string) {
+		this.pattern = pattern;
+		this.base = typeof base === 'string' ? base : base.uri.fsPath;
+	}
+}

src/vs/workbench/api/node/extHostWorkspace.ts

@@ -14,6 +14,7 @@ import { IWorkspaceData, ExtHostWorkspaceShape, MainContext, MainThreadWorkspace
 import * as vscode from 'vscode';
 import { compare } from 'vs/base/common/strings';
 import { TrieMap } from 'vs/base/common/map';
+import { IRelativePattern } from 'vs/base/common/glob';
 
 class Workspace2 extends Workspace {
 
@@ -156,7 +157,7 @@ export class ExtHostWorkspace implements ExtHostWorkspaceShape {
 
 	// --- search ---
 
-	findFiles(include: string, exclude: string, maxResults?: number, token?: vscode.CancellationToken): Thenable<vscode.Uri[]> {
+	findFiles(include: string | IRelativePattern, exclude: string | IRelativePattern, maxResults?: number, token?: vscode.CancellationToken): Thenable<vscode.Uri[]> {
 		const requestId = ExtHostWorkspace._requestIdPool++;
 		const result = this._proxy.$startSearch(include, exclude, maxResults, requestId);
 		if (token) {