Enum VersionVerdict 

pub enum VersionVerdict {
    Same,
    ServerOlder,
    ServerNewer,
    Unpublished,
    Unordered,
}

How the version a server published in its lease stands to this executable’s.

One verdict, read by the election, by serve ensure and by server.status, so that the three never disagree about whether a server is older (I2163). The installer puts each release in a directory of its own, so an upgrade changes the executable’s path and superseded — same path, different file — never fires on it: before this verdict a new client attached to the old server and was served yesterday’s code until it idled out.

use majordomus_cli::lease::{version_verdict, VersionVerdict};
// only an older release is replaced; every other verdict attaches
let replaces = |served| version_verdict(served, "0.20.0") == VersionVerdict::ServerOlder;
assert!(replaces(Some("0.19.1")));
assert!(!replaces(Some("0.20.0")) && !replaces(Some("0.21.0")) && !replaces(None));

Variants

Same

The version this executable is.

ServerOlder

An older release than this executable: a client of this executable replaces it.

ServerNewer

A newer release: a client of this executable attaches to it and says it is older.

Unpublished

No version published: a server from before leases carried one. Reported as outdated, never taken over on that ground alone.

Unordered

Two versions that do not order as releases (a pre-release, a local build tag): reported as different, never acted on.

Trait Implementations

impl Clone for VersionVerdict

fn clone(&self) -> VersionVerdict

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for VersionVerdict

impl Debug for VersionVerdict

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

Formats the value using the given formatter.

impl Eq for VersionVerdict

impl PartialEq for VersionVerdict

fn eq(&self, other: &VersionVerdict) -> 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 VersionVerdict