Adds native fetch call

Puts fetch behind flag

src/env/node/git/git.ts

@@ -136,6 +136,7 @@ export class Git {
 			// Shouldn't *really* be needed but better safe than sorry
 			env: {
 				...process.env,
+				...this._gitEnv,
 				...(options.env ?? emptyObj),
 				GCM_INTERACTIVE: 'NEVER',
 				GCM_PRESERVE_CREDS: 'TRUE',
@@ -240,6 +241,7 @@ export class Git {
 			// Shouldn't *really* be needed but better safe than sorry
 			env: {
 				...process.env,
+				...this._gitEnv,
 				...(options.env ?? emptyObj),
 				GCM_INTERACTIVE: 'NEVER',
 				GCM_PRESERVE_CREDS: 'TRUE',
@@ -322,6 +324,11 @@ export class Git {
 		this._gitLocation = undefined;
 	}
 
+	private _gitEnv: Record<string, unknown> | undefined;
+	setEnv(env: Record<string, unknown> | undefined): void {
+		this._gitEnv = env;
+	}
+
 	async path(): Promise<string> {
 		return (await this.getLocation()).path;
 	}

src/env/node/git/localGitProvider.ts

@@ -326,6 +326,22 @@ export class LocalGitProvider implements GitProvider, Disposable {
 			const scmGit = await scmGitPromise;
 			if (scmGit == null) return;
 
+			// Find env to pass to Git
+			if (configuration.getAny('gitlens.experimental.nativeGit') === true) {
+				for (const v of Object.values(scmGit.git)) {
+					if (v != null && typeof v === 'object' && 'git' in v) {
+						for (const vv of Object.values(v.git)) {
+							if (vv != null && typeof vv === 'object' && 'GIT_ASKPASS' in vv) {
+								Logger.debug(scope, 'Found built-in Git env');
+
+								this.git.setEnv(vv);
+								break;
+							}
+						}
+					}
+				}
+			}
+
 			this._disposables.push(
 				// Since we will get "close" events for repos when vscode is shutting down, debounce the event so ensure we aren't shutting down
 				scmGit.onDidCloseRepository(

src/git/models/repository.ts

@@ -577,7 +577,7 @@ export class Repository implements Disposable {
 		remote?: string;
 	}) {
 		try {
-			if (options?.branch != null) {
+			if (configuration.getAny('gitlens.experimental.nativeGit') === true || options?.branch != null) {
 				await this.container.git.fetch(this.path, options);
 			} else {
 				void (await executeCoreGitCommand('git.fetch', this.path));