1 // Licensed to the Apache Software Foundation (ASF) under one
2 // or more contributor license agreements.  See the NOTICE file
3 // distributed with this work for additional information
4 // regarding copyright ownership.  The ASF licenses this file
5 // to you under the Apache License, Version 2.0 (the
6 // "License"); you may not use this file except in compliance
7 // with the License.  You may obtain a copy of the License at
8 //
9 //   http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing,
12 // software distributed under the License is distributed on an
13 // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14 // KIND, either express or implied.  See the License for the
15 // specific language governing permissions and limitations
16 // under the License.
17 
18 use std::fs;
19 use std::path::PathBuf;
20 use std::fs::File;
21 use std::env;
22 use std::io::Write;
23 
main()24 fn main() {
25     let uuid = match fs::read_to_string("../uuid.txt") {
26         Ok(u) => {
27             u.trim().to_string()
28         },
29         Err(_) => {
30             panic!("Cannot find uuid.txt");
31         }
32     };
33     let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
34     let mut buffer = File::create(out.join("uuid.txt")).unwrap();
35     write!(buffer, "{}", uuid).unwrap();
36 }
37