extensions/git/src/git.ts/Repository/getSubmodules
class Repository:	async getSubmodules(): Promise<Submodule[]> {
		const gitmodulesPath = path.join(this.root, '.gitmodules');

		try {
			const gitmodulesRaw = await fs.readFile(gitmodulesPath, 'utf8');
			return parseGitmodules(gitmodulesRaw);
		} catch (err) {
			if (/ENOENT/.test(err.message)) {
				return [];
			}

			throw err;
		}
	}