Function permissions::functions::is_writable

source · 
pub fn is_writable(path: impl AsRef<Path>) -> Result<bool>
Expand description

Check if current process has permission to write.

Errors

Same as access_syscall.

Examples

use permissions::is_writable;
use std::io;

fn main() -> io::Result<()> {
    println!("{}", is_writable("src/lib.rs")?);
    println!("{}", is_writable("/root")?);
    println!("{}", is_writable("/")?);

    // may return `Err(kind: PermissionDenied)`
    // println!("{}", is_writable("/root/any")?);

    Ok(())
}
Examples found in repository?
examples/is_file_example.rs (line 20)
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fn main() -> io::Result<()> {
    // Asserts with files
    let this_program_path = env::args().next().unwrap();
    assert!(is_executable(&this_program_path)?);

    let this_file = "examples/example2.rs";
    assert!(is_readable(&this_file)?);

    let temp_file = "temp.txt";
    File::create(temp_file)?;
    assert!(is_writable(&temp_file)?);
    assert!(is_removable(&temp_file)?);
    fs::remove_file(temp_file)?;

    // -------------------------

    // Let's try with directories too
    let temp_directory = "temp/";
    fs::create_dir(temp_directory)?;
    assert!(is_readable(&temp_directory)?);
    assert!(is_writable(&temp_directory)?);
    assert!(is_executable(&temp_directory)?);
    assert!(is_removable(&temp_directory)?);
    fs::remove_dir(temp_directory)?;

    println!("Finished.");
    Ok(())
}