Function buildUntrackedPatch

packages/cli/src/routes/diff.ts:20–52

(cwd: string)

const MAX_DIFF_BYTES = 50 * 1024 * 1024;

async function buildUntrackedPatch(cwd: string): Promise<string> {
	const { stdout } = await execFileAsync("git", ["ls-files", "--others", "--exclude-standard"], {
		cwd,
		encoding: "utf8",
	});
	const files = stdout.trim() ? stdout.trim().split("\n") : [];
	if (files.length === 0) return "";

	const patches = await Promise.all(
		files.map(async (file) => {
			try {
				await execFileAsync(
					"git",
					[
						"diff",
						"--no-index",
						"--no-color",
						"--src-prefix=a/",
						"--dst-prefix=b/",
						"--",
						"/dev/null",
						file,
					],
					{ cwd, encoding: "utf8", maxBuffer: MAX_DIFF_BYTES },
				);
				return "";
			} catch (err: unknown) {
				return hasStringStdout(err) ? err.stdout : "";
			}
		}),
	);
	return patches.filter(Boolean).join("\n");
}

export function diffRoutes(db: StageDb): Route[] {
	return [