// Copyright 2022 The Jujutsu Authors//// Licensed under the Apache License, Version 2.0 (the "License");// you may not use this file except in compliance with the License.// You may obtain a copy of the License at//// https://www.apache.org/licenses/LICENSE-2.0//// Unless required by applicable law or agreed to in writing, software// distributed under the License is distributed on an "AS IS" BASIS,// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.// See the License for the specific language governing permissions and// limitations under the License. use std::io::Result;use std::path::Path; fn main() -> Result<()> {    let input = [        "git_store.proto",        "simple_store.proto",        "op_store.proto",        "working_copy.proto",    ];     let root = Path::new(env!("CARGO_MANIFEST_DIR")).parent().unwrap();    let protos_dir = root.join("src").join("protos");     prost_build::Config::new()        .out_dir(&protos_dir)        .include_file("mod.rs")        // For old protoc versions. 3.12.4 needs this, but 3.21.12 doesn't.        .protoc_arg("--experimental_allow_proto3_optional")        .compile_protos(            &input                .into_iter()                .map(|x| protos_dir.join(x))                .collect::<Vec<_>>(),            &[protos_dir],        )}