Function branchExistsOnRemote

src/main/lib/git/worktree.ts:530–602

(
	worktreePath: string,
	branchName: string,
)

}

export async function branchExistsOnRemote(
	worktreePath: string,
	branchName: string,
): Promise<BranchExistsResult> {
	const env = await getGitEnv();

	try {
		// Use execFileAsync directly to get reliable exit codes
		// simple-git doesn't expose exit codes in a predictable way
		await execFileAsync(
			"git",
			[
				"-C",
				worktreePath,
				"ls-remote",
				"--exit-code",
				"--heads",
				"origin",
				branchName,
			],
			{ env, timeout: 30_000 },
		);
		// Exit code 0 = branch exists (--exit-code flag ensures this)
		return { status: "exists" };
	} catch (error) {
		// Use type guard to safely access ExecFileException properties
		if (!isExecFileException(error)) {
			return {
				status: "error",
				message: `Unexpected error: ${error instanceof Error ? error.message : String(error)}`,
			};
		}

		// Handle spawn/system errors first (code is a string like "ENOENT")
		if (typeof error.code === "string") {
			if (error.code === "ENOENT") {
				return {
					status: "error",
					message: "Git is not installed or not found in PATH.",
				};
			}
			if (error.code === "ETIMEDOUT") {
				return {
					status: "error",
					message: "Git command timed out. Check your network connection.",
				};
			}
			// Other system errors
			return {
				status: "error",
				message: `System error: ${error.code}`,
			};
		}

		// Handle killed/timed out processes (timeout option triggers this)
		if (error.killed || error.signal) {
			return {
				status: "error",