just move a single repository up

extensions/git/src/model.ts

@@ -8,7 +8,7 @@
 import { workspace, WorkspaceFoldersChangeEvent, Uri, window, Event, EventEmitter, QuickPickItem, Disposable, SourceControl, SourceControlResourceGroup, TextEditor, Memento, ConfigurationChangeEvent } from 'vscode';
 import { Repository, RepositoryState } from './repository';
 import { memoize, sequentialize, debounce } from './decorators';
-import { dispose, anyEvent, filterEvent, IDisposable, isDescendant } from './util';
+import { dispose, anyEvent, filterEvent, IDisposable, isDescendant, find, firstIndex } from './util';
 import { Git, GitErrorCodes } from './git';
 import * as path from 'path';
 import * as fs from 'fs';
@@ -257,31 +257,13 @@ export class Model {
 		}
 
 		const picks = this.openRepositories.map((e, index) => new RepositoryPick(e.repository, index));
-
-		// Sort picks such that repositories containing the active text editor
-		// appear first.
 		const active = window.activeTextEditor;
-		if (active && active.document.fileName) {
-			const hasActiveEditor = (root: string) => {
-				const relative = path.relative(root, active.document.fileName);
-				return !!relative && !relative.startsWith('..') && !path.isAbsolute(relative);
-			};
-			picks.sort((a, b) => {
-				const aHas = hasActiveEditor(a.repository.root);
-				const bHas = hasActiveEditor(b.repository.root);
-				if (aHas !== bHas) {
-					return aHas ? -1 : 1;
-				}
-				if (aHas && a.repository.root.length !== b.repository.root.length) {
-					// Both a and b contain the active editor document, so one
-					// is an ancestor of the other. We prefer to return the
-					// child (likely a submodule) since the active editor will
-					// be part of that repo. Child is the longer path.
-					return b.repository.root.length - a.repository.root.length;
-				}
-				// Otherwise everything else is equal, so keeps the positions stable
-				return a.index - b.index;
-			});
+		const repository = active && this.getRepository(active.document.fileName);
+		const index = firstIndex(picks, pick => pick.repository === repository);
+
+		// Move repository pick containing the active text editor to appear first
+		if (index > -1) {
+			picks.unshift(...picks.splice(index, 1));
 		}
 
 		const placeHolder = localize('pick repo', "Choose a repository");

extensions/git/src/util.ts

@@ -195,6 +195,16 @@ export function uniqueFilter<T>(keyFn: (t: T) => string): (t: T) => boolean {
 	};
 }
 
+export function firstIndex<T>(array: T[], fn: (t: T) => boolean): number {
+	for (let i = 0; i < array.length; i++) {
+		if (fn(array[i])) {
+			return i;
+		}
+	}
+
+	return -1;
+}
+
 export function find<T>(array: T[], fn: (t: T) => boolean): T | undefined {
 	let result: T | undefined = undefined;