Struct VersionStore 

pub struct VersionStore { /* private fields */ }

Persistent store for version counters per context.

Implementations

impl VersionStore

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

Load or create a version store at the given path.

pub fn load_default() -> Result<Self>

Load from the default path (~/.a3s/sealed-versions.json).

pub fn current_version(&self, context: &str) -> u64

Get the current version for a context (0 if never sealed).

pub fn advance(&mut self, context: &str) -> Result<u64>

Advance the version for a context and persist. Returns the new version number.

pub fn check_version(&self, context: &str, blob_version: u64) -> Result<()>

Check if a versioned blob is current (not rolled back).

Returns Ok(()) if the blob’s version >= stored version, or an error if the blob is older (rollback detected).

pub fn update_version(&mut self, context: &str, blob_version: u64) -> Result<()>

Update the stored version after successful unseal. Only advances if the blob version is newer.

pub fn list(&self) -> &HashMap<String, u64>

List all tracked contexts and their versions.

pub fn remove(&mut self, context: &str) -> Result<bool>

Remove version tracking for a context.