umask

A light utility helping with unix mode representation, with strong types to avoid misusing constants.

The Mode struct implements Display and prints as "rwxrwxrwx"

Import

In Cargo.toml:

umask = "0.1"

Usage

use umask::*;

// You can build from a number:
assert_eq!("rw-r--r--", Mode::from(0b110100100).to_string());
assert_eq!("rw-r--r--", Mode::from(0o644).to_string());

// or from a path:
let mode = Mode::try_from(&path)?;

// You may use `|` to combine class permissions:
let mu = Mode::from(0o600);
let mo = Mode::from(0o004);
let muo = mu | mo;
assert_eq!("rw----r--", muo.to_string());

// You can build with semantic constructs:
let m = Mode::all()
.without(ALL_EXEC);
assert_eq!("rw-rw-rw-", m.to_string());
let mut m = Mode::new()
.with_class_perm(ALL, READ)
.with_class_perm(USER, WRITE);
assert_eq!("rw-r--r--", m.to_string());

// Or if you like
m |= ALL_EXEC;
assert_eq!("rwxr-xr-x", m.to_string());
let m = ALL_READ | USER_WRITE;
assert_eq!("rw-r--r--", m.to_string());