Enum Pin 

pub enum Pin {
    Exact,
    Minimum,
}

What a declared version asks of the installed one. A .nvmrc that says 22 pins a release line; a rust-version of 1.85 is a floor that 1.90 satisfies. Reading the second as the first reports every up-to-date machine as wrong.

The same pair of versions answers differently under each pin:

use majordomus_cli::environment::toolchain::{satisfies, Pin};
// a newer release satisfies a floor but not a pinned release line
assert_eq!(satisfies("1.85", "1.90.0", Pin::Minimum), Some(true));
assert_eq!(satisfies("1.85", "1.90.0", Pin::Exact), Some(false));
// a release inside the pinned line satisfies both
assert_eq!(satisfies("22", "22.20.0", Pin::Exact), Some(true));
assert_eq!(satisfies("22", "22.20.0", Pin::Minimum), Some(true));

Variants

Exact

The installed version starts with the declared one, component by component.

Minimum

The installed version is at least the declared one.

Trait Implementations

impl Clone for Pin

fn clone(&self) -> Pin

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Pin

impl Debug for Pin

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Pin

impl PartialEq for Pin

fn eq(&self, other: &Pin) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Pin