Struct InputStore 

pub struct InputStore { /* private fields */ }

Puzzle inputs, one file per puzzle under the state directory.

Implementations

impl InputStore

pub fn new(state_dir: impl Into<PathBuf>) -> Self

Creates a store rooted at the given state directory.

pub fn path(&self, puzzle: Puzzle) -> PathBuf

Where a puzzle’s input is kept, whether or not it has been downloaded.

pub fn holds(&self, puzzle: Puzzle) -> bool

Whether this puzzle’s input has already been downloaded.

pub fn store(&self, puzzle: Puzzle, text: &str) -> Result<(), Error>

Writes a freshly downloaded input to the store.

Errors

Returns Error::Io if the state directory cannot be written to.

pub fn link(&self, puzzle: Puzzle, at: &Path) -> Result<(), Error>

Points at to this puzzle’s stored input, which InputStore::holds must already report as present.

Anything already sitting at at is a link left over from an input the store no longer has, so it is replaced rather than treated as an obstacle: a state directory that was wiped heals on the next run.

Errors

Returns Error::Io if the link cannot be created and the input cannot be copied into its place either.

Trait Implementations

impl Clone for InputStore

fn clone(&self) -> InputStore

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InputStore

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

Formats the value using the given formatter.