Struct LockedFlake 

pub struct LockedFlake { /* private fields */ }

A fully locked flake.

Obtain one via LockedFlake::lock, then call output_attrs to get the attribute set of flake outputs.

Implementations

impl LockedFlake

pub fn lock( context: &Arc<Context>, fetch_settings: &FetchersSettings, flake_settings: &FlakeSettings, eval_state: &EvalState, lock_flags: &LockFlags, flake_ref: &FlakeReference, ) -> Result<Self>

Lock a flake, resolving and pinning all inputs.

Errors

Returns an error if the C API call fails or returns a null pointer.

pub fn export_json(&self) -> Result<String>

Export this locked flake as an owned JSON graph.

The exported JSON contains the lock file and the source-path overrides Nix keeps beside it for local or overridden inputs. Send this payload to another process and reconstruct it with ImportedLockedFlake::import_json.

Errors

Returns an error if the C API call fails or returns invalid UTF-8.

pub fn output_attrs<'s>( &self, flake_settings: &FlakeSettings, eval_state: &'s EvalState, ) -> Result<Value<'s>>

Get the output attributes of this locked flake as a Nix value.

The returned Value is tied to the lifetime of eval_state.

Errors

Returns an error if the C API call fails.

Trait Implementations

impl Drop for LockedFlake

fn drop(&mut self)

Executes the destructor for this type.

impl Send for LockedFlake