Struct UpdateCheckCache 

pub struct UpdateCheckCache {
    pub checked_at_unix: u64,
    pub latest_tag: Option<String>,
}

Cached result of the last network update check.

Fields

checked_at_unix: u64

Unix seconds at which the network was last queried.

latest_tag: Option<String>

The latest release tag seen, or None when the check completed but produced no usable tag (e.g. the release had no publishable assets).

Implementations

impl UpdateCheckCache

pub fn now(latest_tag: Option<String>) -> Self

Record a check that just completed.

pub fn load(path: &Path) -> Option<Self>

Read the cache, returning None for “absent, unreadable, or corrupt”.

A damaged cache is indistinguishable from no cache for our purposes: both mean “we do not know, go ask”. Nothing here is worth surfacing an error for.

pub fn is_fresh(&self, now_unix: u64, interval_hours: u64) -> bool

True when this entry is young enough to reuse instead of re-fetching.

A timestamp in the future is treated as stale rather than infinitely-fresh, so a clock that jumped forward and back cannot wedge the check off permanently.

pub fn store(&self, path: &Path) -> Result<()>

Write the cache atomically (temp file, then rename), creating the parent directory if needed.

Trait Implementations

impl Clone for UpdateCheckCache

fn clone(&self) -> UpdateCheckCache

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UpdateCheckCache

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for UpdateCheckCache

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for UpdateCheckCache

impl PartialEq for UpdateCheckCache

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for UpdateCheckCache

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for UpdateCheckCache