Fix fuzzy searching for findFiles2 (#204768)

* progress on making fuzzy option
* finish connection to findfiles API

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

@@ -598,9 +598,8 @@ suite('vscode API - workspace', () => {
 	});
 
 	test('`findFiles2`', () => {
-		return vscode.workspace.findFiles2('*image.png').then((res) => {
+		return vscode.workspace.findFiles2('**/image.png').then((res) => {
-			assert.strictEqual(res.length, 4);
+			assert.strictEqual(res.length, 2);
-			// TODO: see why this is fuzzy matching
 		});
 	});
 
@@ -619,9 +618,8 @@ suite('vscode API - workspace', () => {
 	});
 
 	test('findFiles2, exclude', () => {
-		return vscode.workspace.findFiles2('*image.png', { exclude: '**/sub/**' }).then((res) => {
+		return vscode.workspace.findFiles2('**/image.png', { exclude: '**/sub/**' }).then((res) => {
-			assert.strictEqual(res.length, 3);
+			assert.strictEqual(res.length, 1);
-			// TODO: see why this is fuzzy matching
 		});
 	});
 

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

@@ -497,6 +497,7 @@ export class ExtHostWorkspace implements ExtHostWorkspaceShape, IExtHostWorkspac
 			disregardSearchExcludeSettings: typeof options.useDefaultSearchExcludes === 'boolean' ? !options.useDefaultSearchExcludes : false,
 			maxResults: options.maxResults,
 			excludePattern: excludePattern,
+			shouldGlobSearch: typeof options.fuzzy === 'boolean' ? !options.fuzzy : true,
 			_reason: 'startFileSearch'
 		};
 		let folderToUse: URI | undefined;

src/vs/workbench/services/search/common/queryBuilder.ts

@@ -72,6 +72,7 @@ export interface IFileQueryBuilderOptions extends ICommonQueryBuilderOptions {
 	exists?: boolean;
 	sortByScore?: boolean;
 	cacheKey?: string;
+	shouldGlobSearch?: boolean;
 }
 
 export interface ITextQueryBuilderOptions extends ICommonQueryBuilderOptions {
@@ -188,6 +189,7 @@ export class QueryBuilder {
 			exists: options.exists,
 			sortByScore: options.sortByScore,
 			cacheKey: options.cacheKey,
+			shouldGlobMatchFilePattern: options.shouldGlobSearch
 		};
 	}
 

src/vs/workbench/services/search/common/search.ts

@@ -81,6 +81,8 @@ export interface ICommonQueryProps<U extends UriComponents> {
 	_reason?: string;
 
 	folderQueries: IFolderQuery<U>[];
+	// The include pattern for files that gets passed into ripgrep.
+	// Note that this will override any ignore files if applicable.
 	includePattern?: glob.IExpression;
 	excludePattern?: glob.IExpression;
 	extraFileResources?: U[];
@@ -95,6 +97,10 @@ export interface IFileQueryProps<U extends UriComponents> extends ICommonQueryPr
 	type: QueryType.File;
 	filePattern?: string;
 
+	// when walking through the tree to find the result, don't use the filePattern to fuzzy match.
+	// Instead, should use glob matching.
+	shouldGlobMatchFilePattern?: boolean;
+
 	/**
 	 * If true no results will be returned. Instead `limitHit` will indicate if at least one result exists or not.
 	 * Currently does not work with queries including a 'siblings clause'.
@@ -586,9 +592,11 @@ export function isSerializedFileMatch(arg: ISerializedSearchProgressItem): arg i
 	return !!(<ISerializedFileMatch>arg).path;
 }
 
-export function isFilePatternMatch(candidate: IRawFileMatch, normalizedFilePatternLowercase: string): boolean {
+export function isFilePatternMatch(candidate: IRawFileMatch, filePatternToUse: string, fuzzy = true): boolean {
 	const pathToMatch = candidate.searchPath ? candidate.searchPath : candidate.relativePath;
-	return fuzzyContains(pathToMatch, normalizedFilePatternLowercase);
+	return fuzzy ?
+		fuzzyContains(pathToMatch, filePatternToUse) :
+		glob.match(filePatternToUse, pathToMatch);
 }
 
 export interface ISerializedFileMatch {

src/vs/workbench/services/search/node/fileSearch.ts

@@ -75,7 +75,7 @@ export class FileWalker {
 		this.errors = [];
 
 		if (this.filePattern) {
-			this.normalizedFilePatternLowercase = prepareQuery(this.filePattern).normalizedLowercase;
+			this.normalizedFilePatternLowercase = config.shouldGlobMatchFilePattern ? null : prepareQuery(this.filePattern).normalizedLowercase;
 		}
 
 		this.globalExcludePattern = config.excludePattern && glob.parse(config.excludePattern);
@@ -579,6 +579,8 @@ export class FileWalker {
 
 			if (this.normalizedFilePatternLowercase) {
 				return isFilePatternMatch(candidate, this.normalizedFilePatternLowercase);
+			} else if (this.filePattern) {
+				return isFilePatternMatch(candidate, this.filePattern, false);
 			}
 		}
 

src/vscode-dts/vscode.proposed.findFiles2.d.ts

@@ -55,6 +55,12 @@ declare module 'vscode' {
 		 * See the vscode setting `"search.followSymlinks"`.
 		 */
 		followSymlinks?: boolean;
+
+		/**
+		 * If set to true, the `filePattern` arg will be fuzzy-searched instead of glob-searched.
+		 * If `filePattern` is a `GlobPattern`, then the fuzzy search will act on the `pattern` of the `RelativePattern`
+		 */
+		fuzzy?: boolean;
 	}
 
 	/**