1 /* 2 * Copyright (C) 2024 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 use anyhow::Result; 18 use std::fs; 19 use tempfile::NamedTempFile; 20 21 /// Create temp file copy copy_to_temp_file(source_file: &str, read_only: bool) -> Result<NamedTempFile>22pub(crate) fn copy_to_temp_file(source_file: &str, read_only: bool) -> Result<NamedTempFile> { 23 let file = NamedTempFile::new()?; 24 fs::copy(source_file, file.path())?; 25 if read_only { 26 let file_name = file.path().display().to_string(); 27 let mut perms = fs::metadata(file_name).unwrap().permissions(); 28 perms.set_readonly(true); 29 fs::set_permissions(file.path(), perms.clone()).unwrap(); 30 } 31 Ok(file) 32 } 33