Struct SnapshotManager 

pub struct SnapshotManager { /* private fields */ }

Implementations

impl SnapshotManager

pub fn new() -> Result<Self>

Creates a new SnapshotManager.

Errors

This function will return an error if:

• The system data/config directory cannot be found
• The snapshots directory cannot be created due to filesystem errors

pub fn create( &self, name: String, description: Option<String>, vars: Vec<EnvVar>, ) -> Result<Snapshot>

Creates a new snapshot with the given name, description, and environment variables.

Errors

This function will return an error if:

• There are file system errors when writing the snapshot file to disk
• JSON serialization of the snapshot fails

pub fn list(&self) -> Result<Vec<Snapshot>>

Lists all snapshots sorted by creation date (newest first).

Errors

This function will return an error if:

• There are file system errors when reading the snapshots directory
• There are file system errors when reading individual snapshot files

pub fn get(&self, id_or_name: &str) -> Result<Snapshot>

Gets a snapshot by ID or name.

Errors

This function will return an error if:

• The snapshot cannot be found by ID or name
• There are file system errors when reading the snapshot file
• JSON deserialization fails for the snapshot file

pub fn delete(&self, id_or_name: &str) -> Result<()>

Deletes a snapshot by ID or name.

Errors

This function will return an error if:

• The snapshot cannot be found by ID or name
• There are file system errors when deleting the snapshot file

pub fn restore( &self, id_or_name: &str, manager: &mut EnvVarManager, ) -> Result<()>

Restores environment variables from a snapshot by clearing current variables and applying snapshot values.

Errors

This function will return an error if:

• The snapshot cannot be found by ID or name
• There are file system errors when reading the snapshot file
• JSON deserialization fails for the snapshot file
• Setting environment variables in the manager fails

pub fn diff(&self, snapshot1: &str, snapshot2: &str) -> Result<SnapshotDiff>

Compares two snapshots and returns the differences between them.

Errors

This function will return an error if:

• Either snapshot cannot be found by ID or name
• There are file system errors when reading snapshot files
• JSON deserialization fails for the snapshot files