Struct PackageHistory 

pub struct PackageHistory {
    pub packages: HashMap<String, Vec<HistoryEntry>>,
}

Package history storage

Fields

packages: HashMap<String, Vec<HistoryEntry>>

Implementations

impl PackageHistory

pub fn load(paths: &Paths) -> Result<Self>

Load history from file

pub fn save(&self, paths: &Paths) -> Result<()>

Save history to file

pub fn record_install(&mut self, name: &str, version: &str, revision: u32)

Record an install action

pub fn record_upgrade( &mut self, name: &str, version: &str, revision: u32, from_version: &str, from_revision: u32, )

Record an upgrade action

pub fn record_downgrade( &mut self, name: &str, version: &str, revision: u32, from_version: &str, from_revision: u32, )

Record a downgrade action

pub fn record_reinstall(&mut self, name: &str, version: &str, revision: u32)

Record a reinstall action

pub fn record_uninstall(&mut self, name: &str, version: &str, revision: u32)

Record an uninstall action

pub fn get(&self, name: &str) -> Option<&Vec<HistoryEntry>>

Get history for a specific package

pub fn get_latest(&self, name: &str) -> Option<&HistoryEntry>

Get the most recent entry for a package

pub fn get_previous(&self, name: &str) -> Option<&HistoryEntry>

Get the previous version for a package (before current)

pub fn get_installed_versions(&self, name: &str) -> Vec<(String, u32)>

Get all versions that were installed for a package

pub fn has_history(&self, name: &str) -> bool

Check if a package has any history

pub fn prune(&mut self, keep: usize)

Prune history to keep only the last N entries per package

pub fn remove(&mut self, name: &str)

Remove all history for a package

Trait Implementations

impl Clone for PackageHistory

fn clone(&self) -> PackageHistory

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PackageHistory

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

Formats the value using the given formatter.

impl Default for PackageHistory

fn default() -> PackageHistory

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for PackageHistory

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for PackageHistory

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

where __S: Serializer,

Serialize this value into the given Serde serializer.