add unshallow as an option for git pull

extensions/git/src/api/api1.ts

@@ -172,8 +172,8 @@ export class ApiRepository implements Repository {
 		return this._repository.fetch(remote, ref, depth);
 	}
 
-	pull(): Promise<void> {
-		return this._repository.pull();
+	pull(unshallow?: boolean): Promise<void> {
+		return this._repository.pull(undefined, unshallow);
 	}
 
 	push(remoteName?: string, branchName?: string, setUpstream: boolean = false): Promise<void> {

extensions/git/src/api/git.d.ts

@@ -154,7 +154,7 @@ export interface Repository {
 	removeRemote(name: string): Promise<void>;
 
 	fetch(remote?: string, ref?: string, depth?: number): Promise<void>;
-	pull(): Promise<void>;
+	pull(unshallow?: boolean): Promise<void>;
 	push(remoteName?: string, branchName?: string, setUpstream?: boolean): Promise<void>;
 }
 

extensions/git/src/git.ts

@@ -629,6 +629,10 @@ export interface CommitOptions {
 	empty?: boolean;
 }
 
+export interface PullOptions {
+	unshallow?: boolean;
+}
+
 export enum ForcePushMode {
 	Force,
 	ForceWithLease
@@ -1183,7 +1187,7 @@ export class Repository {
 			args.push('--prune');
 		}
 
-		if (options.depth) {
+		if (typeof options.depth === 'number') {
 			args.push(`--depth=${options.depth}`);
 		}
 
@@ -1200,8 +1204,12 @@ export class Repository {
 		}
 	}
 
-	async pull(rebase?: boolean, remote?: string, branch?: string): Promise<void> {
-		const args = ['pull', '--tags', '--unshallow'];
+	async pull(rebase?: boolean, remote?: string, branch?: string, options: PullOptions = {}): Promise<void> {
+		const args = ['pull', '--tags'];
+
+		if (options.unshallow) {
+			args.push('--unshallow');
+		}
 
 		if (rebase) {
 			args.push('-r');

extensions/git/src/repository.ts

@@ -951,7 +951,7 @@ export class Repository implements Disposable {
 	}
 
 	@throttle
-	async pull(head?: Branch): Promise<void> {
+	async pull(head?: Branch, unshallow?: boolean): Promise<void> {
 		let remote: string | undefined;
 		let branch: string | undefined;
 
@@ -960,19 +960,19 @@ export class Repository implements Disposable {
 			branch = `${head.upstream.name}`;
 		}
 
-		return this.pullFrom(false, remote, branch);
+		return this.pullFrom(false, remote, branch, unshallow);
 	}
 
-	async pullFrom(rebase?: boolean, remote?: string, branch?: string): Promise<void> {
+	async pullFrom(rebase?: boolean, remote?: string, branch?: string, unshallow?: boolean): Promise<void> {
 		await this.run(Operation.Pull, async () => {
 			await this.maybeAutoStash(async () => {
 				const config = workspace.getConfiguration('git', Uri.file(this.root));
 				const fetchOnPull = config.get<boolean>('fetchOnPull');
 
 				if (fetchOnPull) {
-					await this.repository.pull(rebase);
+					await this.repository.pull(rebase, undefined, undefined, { unshallow });
 				} else {
-					await this.repository.pull(rebase, remote, branch);
+					await this.repository.pull(rebase, remote, branch, { unshallow });
 				}
 			});
 		});