rust/src/libstd/tempfile.rs

// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

//! Temporary files and directories

use core::rand::RngUtil;

pub fn mkdtemp(tmpdir: &Path, suffix: &str) -> Option<Path> {
    let r = rand::rng();
    for 1000.times {
        let p = tmpdir.push(r.gen_str(16) + suffix);
        if os::make_dir(&p, 0x1c0) { // 700
            return Some(p);
        }
    }
    None
}

#[cfg(test)]
mod tests {
    use tempfile::mkdtemp;
    use tempfile;

    #[test]
    fn test_mkdtemp() {
        let p = mkdtemp(&Path("."), "foobar").unwrap();
        os::remove_dir(&p);
        assert!(str::ends_with(p.to_str(), "foobar"));
    }

    // Ideally these would be in core::os but then core would need
    // to depend on std
    #[test]
    fn recursive_mkdir_rel() {
        use core::libc::consts::os::posix88::{S_IRUSR, S_IWUSR, S_IXUSR};
        use core::os;

        let root = mkdtemp(&os::tmpdir(), "temp").expect("recursive_mkdir_rel");
        os::change_dir(&root);
        let path = Path("frob");
        assert!(os::mkdir_recursive(&path,  (S_IRUSR | S_IWUSR | S_IXUSR) as i32));
        assert!(os::path_is_dir(&path));
        assert!(os::mkdir_recursive(&path,  (S_IRUSR | S_IWUSR | S_IXUSR) as i32));
        assert!(os::path_is_dir(&path));
    }

    #[test]
    fn recursive_mkdir_dot() {
        use core::libc::consts::os::posix88::{S_IRUSR, S_IWUSR, S_IXUSR};
        use core::os;

        let dot = Path(".");
        assert!(os::mkdir_recursive(&dot,  (S_IRUSR | S_IWUSR | S_IXUSR) as i32));
        let dotdot = Path("..");
        assert!(os::mkdir_recursive(&dotdot,  (S_IRUSR | S_IWUSR | S_IXUSR) as i32));
    }

    #[test]
    fn recursive_mkdir_rel_2() {
        use core::libc::consts::os::posix88::{S_IRUSR, S_IWUSR, S_IXUSR};
        use core::os;

        let root = mkdtemp(&os::tmpdir(), "temp").expect("recursive_mkdir_rel_2");
        os::change_dir(&root);
        let path = Path("./frob/baz");
        debug!("...Making: %s in cwd %s", path.to_str(), os::getcwd().to_str());
        assert!(os::mkdir_recursive(&path, (S_IRUSR | S_IWUSR | S_IXUSR) as i32));
        assert!(os::path_is_dir(&path));
        assert!(os::path_is_dir(&path.pop()));
        let path2 = Path("quux/blat");
        debug!("Making: %s in cwd %s", path2.to_str(), os::getcwd().to_str());
        assert!(os::mkdir_recursive(&path2, (S_IRUSR | S_IWUSR | S_IXUSR) as i32));
        assert!(os::path_is_dir(&path2));
        assert!(os::path_is_dir(&path2.pop()));
    }

}